Get Free Samples! Come fill out the form ! ! !

Call us: +86 0755-82563503

English

Currency: $ US Dollar

STM32F103C8T6
MFI343S00177
STM32F407VET6
ATMEGA328P-PU

Categories
- Integrated Circuits (ICs)
  - Integrated Circuits (ICs)
  - AC to DC Converter ICs
  - Active Filters
  - ADC
  - AFE
  - Analog Multipliers & Dividers
  - Analog Switches & Multiplexers ICs
  - Application Specific Microcontrollers
  - Application Specific Timer
  - Audio Amplifiers
  - Audio Special Purpose
  - Battery Chargers ICs
  - Battery Management ICs
  - Buffers & Transceivers
  - Capacitive Sensors
  - Clock Buffers & Drivers
  - Clock Generators
  - CODECs Interface ICs
  - Comparators
  - Configuration Proms for FPGAs
  - Controllers Interface ICs
  - Converting Interface ICs
  - Counters & Dividers
  - CPLDs
  - Current Regulator IC
  - DAC
  - DC DC Voltage Regulators
  - DC to DC converter
  - DDS
  - Delay Lines Timing ICs
  - Digital Potentiometers
  - Display Drivers ICs
  - Drivers Interface ICs
  - DSP
  - Embedded ICs Modules
  - Energy Metering ICs
  - FIFOs Memory
  - Flip Flops
  - FPGAs
  - FPGAs with Microcontrollers
  - Full & Half-Bridge Drivers ICs
  - Gate Drivers ICs
  - Gates & Inverters
  - Hot Swap Controllers
  - I/O Expanders
  - IC Batteries
  - Ideal Diode controller
  - Instrumentational OP Amps
  - Interface ICs Modules
  - Laser Driver ICs
  - Latches
  - LED Driver ICs
  - Lighting Controllers
  - Linear Comparators
  - Linear Regulator Controllers
  - Linear Voltage Regulators
  - Memory
  - Memory Batteries
  - Memory Controllers
  - Microcontrollers
  - Microprocessors
  - Modems ICs & Modules
  - Motor Drivers
  - Multi-Functional Gates & Inverters
  - Multivibrators
  - Multivibrators
  - PFC PMICs
  - PLDs
  - PoE Controllers
  - Power Supply Control ICs
  - Power Switches ICs
  - Programmable Timers & Oscillators
  - RMS to DC Converters
  - RTCs
  - Sensor & Detector Interface ICs
  - Serializers & Deserializers
  - Shift Registers
  - Signal Buffers
  - Signal Switches & Multiplexers
  - Signal Terminators
  - SoC
  - Special Purpose ADCs/DACs
  - Special Purpose Amplifiers
  - Special Purpose Analog Switches
  - Specialized ICs
  - Specialized Interface ICs
  - Specialized Power Management ICs
  - Specialized Voltage Regulators
  - Specialty Logic ICs
  - Switching Voltage Regulators
  - Telecom Interface ICs
  - Thermal Management
  - Touch Screen Controllers
  - UARTs
  - Universal Bus Functions
  - V/F & F/V Converters
  - Video Amps & Modules
  - Video Processing Linear ICs
  - Voice Record and Playback
  - Voltage Reference
  - Voltage Supervisors
  - Voltage Translators & Level Shifters
  - Integrated circuits, often referred to as ICs or microchips, are miniature electronic circuits that contain thousands to billions of transistors, resistors, capacitors, and other electronic components on a small semiconductor material. ICs are the building blocks of modern electronics and are used in a vast array of devices and systems, ranging from smartphones and computers to automotive electronics and medical devices. They provide compactness, high functionality, and improved performance by integrating multiple electronic functions onto a single chip.
- Connectors
  - Connectors
  - ARINC Connectors
  - Backplane Connector Contacts
  - Backplane Connectors Accessories
  - Backplane Connectors Housings
  - Backshells and Cable Clamps
  - Banana Tip Adapters
  - Banana Tip Binding Posts
  - Banana Tip Connectors Accessories
  - Banana Tip Jacks
  - Barrel Accessories
  - Barrel Adapters
  - Barrel Audio Connectors
  - Barrel Connectors
  - Barrel Power Connectors
  - Barrier Terminal Blocks
  - Between Series Adapters
  - Blade Type Power Connectors
  - Blade Type Power Connectors
  - Blade Type Power Connectors Accessories
  - Blade Type Power Connectors Housings
  - Board In Connectors
  - Board to Board Connectors
  - Card Edge Adapters
  - Card Edge Connectors Accessories
  - Card Edge Connectors Housings
  - Card Edge Contacts
  - Centronics Connectors
  - Circular Adapters
  - Circular Connectors
  - Circular Connectors Accessories
  - Circular Connectors Housings
  - Circular Contacts
  - Coaxial Connectors
  - Coaxial Connectors Accessories
  - D-Sub Adapters
  - D-Sub Connector Housings
  - D-Sub Connector Terminators
  - D-Sub Connectors
  - D-Sub Connectors Accessories
  - D-Sub Contacts
  - D-Sub Hoods
  - D-Sub Jackscrews
  - DIN 41612 Connectors
  - Din Rail Terminal Blocks
  - Edgeboard Connectors
  - Faceplates & Frames
  - Fiber Optic Adapters
  - Fiber Optic Connectors
  - Fiber Optic Connectors Accessories
  - Fiber Optic Connectors Housings
  - Flat Flexible Connector Housings
  - Flat Flexible Connectors
  - Flat Flexible Connectors Accessories
  - Flat Flexible Contacts
  - Foil Connectors
  - Hard Metric Connector
  - Headers & Male Pins
  - Heavy Duty Connectors Accessories
  - Heavy Duty Connectors Assemblies
  - Heavy Duty Connectors Frames
  - Heavy Duty Connectors Housings
  - Heavy Duty Connectors Modules
  - Heavy Duty Contacts
  - IC Adapters
  - IC and Component Sockets
  - IC Sockets Accessories
  - Inline Memory Module Sockets
  - Interface Modules Terminal Blocks
  - Keystone Accessories
  - Keystone Inserts
  - Knife Connectors
  - Leadframe Contacts
  - LGH Connectors
  - Magnetic Wire Terminals
  - Magnetics Modular Jacks
  - Memory Card Adapters
  - Memory Card Sockets
  - Memory Connectors Accessories
  - Modular Adapters
  - Modular Connectors Accessories
  - Modular Jacks
  - Modular Plug Housings
  - Modular Plugs
  - Multi Purpose Contacts
  - Panel Mount Connectors
  - Panel Mount Terminal Blocks
  - PC Pin Terminals
  - Photovoltaic Connectors
  - Photovoltaic Connectors Accessories
  - Photovoltaic Contacts
  - Pluggable Connectors
  - Pluggable Connectors Accessories
  - Pluggable Terminal Blocks
  - Power Distribution Terminal Blocks
  - Power Entry Connectors Accessories
  - Power Entry Connectors Modules
  - Quick-Connect & Quick-Disconnect Connectors
  - Rectangular Connectors
  - Rectangular Connectors Accessories
  - Rectangular Connectors Adapters
  - Rectangular Connectors Arrays
  - Rectangular Connectors Headers
  - Rectangular Connectors Housings
  - Rectangular Contact Inserts
  - Rectangular Terminals
  - RF Adapters
  - RF Contacts
  - RF Terminators
  - Ring Terminals
  - Screw Connectors
  - Shunts & Jumpers
  - Socket Terminals
  - Solder Lug Connectors
  - Spade Connectors
  - Specialized Backplane Connectors
  - Specialized Connectors
  - Specialized Terminal Blocks
  - Spring Loaded Contacts
  - Spring Loaded Rectangular Connectors
  - SSL Connectors
  - SSL Connectors Accessories
  - SSL Contacts
  - Terminal Block Adapters
  - Terminal Blocks - Contacts
  - Terminal Blocks Accessories
  - Terminal Jumpers
  - Terminal Junction Systems
  - Terminal Marker Strips
  - Terminal Strips and Turret Boards
  - Terminal Wire Ferrules
  - Terminals Accessories
  - Terminals Adapters
  - Terminals Housings
  - Transistor Sockets
  - Turret Connectors
  - Video Adapters
  - Video Connector Accessories
  - Video Connectors
  - Wire Pin Connectors
  - Wire Splice Connectors
  - Wire-to-Board Connectors
  - Wire-to-Board Terminal Blocks
  - Wiring Blocks Accessories
  - Wiring Modular Connectors
  - Connectors are devices used to establish electrical or mechanical connections between two or more components or systems. They provide a means for joining cables, wires, or other conductive elements, enabling the transmission of electrical signals, power, or data. Connectors come in a wide range of forms, including electrical connectors, coaxial connectors, modular connectors, and fiber optic connectors. They play a critical role in industries such as telecommunications, automotive, aerospace, and consumer electronics, facilitating reliable and secure connections.
- Discrete Semiconductors
  - Discrete Semiconductors
  - Arrays BJT Transistors
  - BJT Transistors Arrays
  - Bridge Rectifiers
  - DIACs and SIDACs
  - IGBTs Modules
  - IGBTs Transistors Arrays
  - JFETs Transistors
  - MOSFETs Transistors Arrays
  - Power Driver Modules
  - Pre-Biased BJT Transistors
  - Programmable Unijunction Transistors
  - Rectifier Diode Array
  - RF BJT Transistors
  - RF Diodes
  - RF MOSFETs Transistors
  - SCRs Thyristors
  - Single BJT Transistors
  - Single IGBTs
  - Single IGBTs
  - Single MOSFETs Transistors
  - Single-Phase Diode Rectifier
  - Specialized Transistors
  - Thyristors Modules
  - TRIACs Thyristors
  - Varactors
  - Zener Diode Arrays
  - Zener Single Diodes
  - Discrete Semiconductor refer to electronic components that are individual and separate from each other, as opposed to integrated circuits that contain multiple components on a single chip. These discrete components include diodes, transistors, thyristors, and other similar devices that perform specific functions in electronic circuits. They are commonly used in power supplies, amplifiers, and other electronic devices where precise control and regulation of electrical signals is required. Discrete Semiconductor Products are available in a variety of sizes, shapes, and specifications to meet the needs of different applications. They are widely used in the electronics industry and are essential components in many electronic devices.
- Capacitors
  - Capacitors
  - Aluminum Electrolytic Capacitors
  - Aluminum Polymer Capacitors
  - Capacitor Accessories
  - Capacitor Networks
  - Ceramic Capacitors
  - Ceramic Capacitors
  - Film Capacitors
  - Mica & PTFE Capacitors
  - Niobium Oxide Capacitors
  - Silicon Capacitors
  - Supercapacitors & EDLC
  - Tantalum Capacitors
  - Tantalum Polymer Capacitors
  - Thin Film Capacitors
  - Trimmers Variable
  - Capacitors are electronic components that store and release electrical energy. They consist of two conductive plates separated by an insulating material known as a dielectric. Capacitors are widely used in electronic circuits for various purposes, including energy storage, filtering, decoupling, timing, and coupling signals. They are available in different types, such as electrolytic capacitors, ceramic capacitors, and tantalum capacitors, each with unique characteristics suitable for different applications.
- Sensors
  - Sensors
  - CdS Cells
  - Accelerometers
  - Accessories
  - Amplifiers
  - Analog & Digital Sensor
  - Analog & Digital Sensors
  - Analog Optical Sensors
  - Angle & Linear Position Measuring Sensors
  - Camera Modules
  - Color Sensors
  - Current Sensors
  - Distance Measuring Sensors
  - Dust Sensors
  - Encoders
  - Float & Level Sensors
  - Flow Sensors
  - Force Sensors
  - Gas Sensors
  - Gyroscopes
  - Humidity Sensors
  - Image Sensors
  - IMUs
  - Inclinometers
  - IrDA Transceiver Modules
  - Junction Blocks
  - Logic Optical Sensors
  - Logic Photo Detectors
  - Logic Photointerrupters
  - LVDT Transducers
  - Magnetic Compass Sensors Modules
  - Magnetic Linear Sensors ICs
  - Magnetic Position Sensors Modules
  - Magnetic Switches
  - Mechanical Temperature Sensors
  - Multi Purpose Magnets
  - Multifunction
  - NTC Thermistors
  - Occupancy Sensors
  - Optical Motion Sensors
  - Optical Sensors Remote Receiver
  - Photodiodes
  - Photoelectric Sensors
  - Phototransistors
  - Proximity Sensors
  - PTC Thermistors
  - RTD
  - Sensor Cable Accessories
  - Sensor Cable Assemblies
  - Sensor Matched Magnets
  - Shock Sensors
  - Solar Cells
  - Solid State Thermostats
  - Specialized Sensors
  - Strain Gauges
  - Thermocouple Temperature Sensors
  - Tilt Switch Sensors
  - Touch Sensors
  - Transducers
  - Transistor Optical Sensors
  - Ultrasonic Receivers
  - UV Sensors
  - Vibration Sensors
  - Sensors are devices that detect and measure physical or environmental parameters and convert them into electrical signals. They enable the acquisition of real-world data for monitoring, control, and feedback purposes. Sensors can detect variables such as temperature, pressure, light, motion, proximity, and many others. They find application in diverse fields, including automotive systems, consumer electronics, industrial automation, healthcare, and environmental monitoring.
- Resistors
  - Resistors
  - Chassis Mount Resistors
  - Chip SMD Resistors
  - Chip SMD Resistors
  - Resistor Accessories
  - Resistor Arrays
  - Specialized Resistors
  - Through Hole Resistors
  - Resistors are passive electronic components designed to impede the flow of electric current in a circuit. They are used to control current levels, divide voltage, and limit power dissipation. Resistors are available in various types, including fixed resistors, variable resistors (potentiometers), and specialized resistors for specific applications such as high power or precision requirements. They are fundamental components in electronic circuits, playing roles in voltage regulation, signal conditioning, and impedance matching.
- Isolators
  - Isolators
  - Digital Isolators
  - Isolated Gate Drivers
  - Logic Optoisolators
  - Photovoltaic Optoisolators
  - Specialized Isolators
  - Triac Optoisolators
  - Isolators, also known as isolation devices or isolating components, are electronic components designed to electrically separate or isolate different parts of a circuit or system. They provide protection by preventing unwanted electrical currents, noise, or interference from affecting sensitive components or systems. Isolators are commonly used in applications where electrical isolation is crucial, such as power supplies, communication systems, motor control, and industrial automation. They ensure reliable operation, safety, and protection from electrical disturbances or faults.
- Board Mount Power Supplies
  - Board Mount Power Supplies
  - Board Mount AC DC Converters
  - Board Mount Accessories
  - Board Mount DC DC Converters
  - Off-board LED Drivers
  - Box and enclosure products refer to electronic components that are designed to protect and house electronic devices. These products come in a variety of shapes and sizes, and are typically made from materials such as plastic, metal, or fiberglass. Box and enclosure products are essential for protecting electronic components from environmental factors such as dust, moisture, and temperature fluctuations. They also provide a secure and organized way to store and transport electronic devices. Box and enclosure products are commonly used in industries such as telecommunications, aerospace, and automotive, as well as in consumer electronics.
- RF/IF & RFID
  - RF/IF & RFID
  - Attenuators
  - Balun
  - RF Accessories
  - RF Amplifiers
  - RF Antennas
  - RF Boards
  - RF Demodulators
  - RF Detectors
  - RF Directional Coupler
  - RF Front End
  - RF Misc ICs and Modules
  - RF Mixers
  - RF Modulators
  - RF Multiplexers
  - RF Power Controller ICs
  - RF Power Dividers
  - RF Receivers
  - RF Shields
  - RF Switches
  - RF Transceiver ICs
  - RF Transceiver Modules
  - RF Transmitter
  - RF Transmitters
  - RFI & EMI Contacts
  - RFI & EMI Materials
  - RFID Accessories
  - RFID Antennas
  - RFID Boards
  - RFID ICs
  - RFID Reader Modules
  - RFID Tags
  - RF power dividers/splitters are electronic components that are used to divide or split an incoming RF signal into multiple output signals. These components are commonly used in communication systems, such as radio and television broadcasting, as well as in radar and satellite communication systems. RF power dividers/splitters are designed to maintain signal integrity and minimize signal loss, ensuring that each output signal is of equal strength and quality. They come in various configurations, including 2-way, 3-way, 4-way, and 8-way, and can be used in both indoor and outdoor applications. RF power dividers/splitters are essential components in any RF system that requires signal distribution.
- Circuit Protection
  - Circuit Protection
  - Circuit Breakers
  - Circuit Protection Accessories
  - Electrical Fuses
  - Fuseholders
  - Fuses
  - GDT
  - GFCI
  - ICL
  - Lighting Protection
  - PTC Resettable Fuses
  - Surge Suppression ICs
  - Thermal Fuses
  - TVS Diodes
  - TVS Mixed Technology
  - TVS SPDs
  - TVS Thyristors
  - TVS Varistors
  - Circuit protection is a crucial aspect of electronic components classification. It refers to the measures taken to prevent damage to electronic circuits due to overvoltage, overcurrent, or short circuits. Circuit protection devices such as fuses, circuit breakers, surge protectors, and voltage regulators are used to safeguard electronic components from damage caused by power surges, lightning strikes, and other electrical disturbances. These devices are designed to interrupt the flow of current when the voltage or current exceeds a safe level, thereby protecting the circuit and preventing damage to the electronic components. Circuit protection is essential for ensuring the reliability and longevity of electronic devices and systems.
- Crystals
  - Crystals
  - Crystals
  - Crystals Accessories
  - Oscillators
  - Pin Configurable Oscillators
  - Programmable Oscillators
  - Resonators
  - Stand Alone Programmers
  - Voltage Controlled Oscillators
  - Crystals, in the context of electronics, refer to quartz crystals or other similar crystalline structures used as precise timing references or frequency-determining elements. These crystals exhibit a phenomenon called piezoelectricity, which allows them to generate a stable and accurate electrical signal when subjected to mechanical stress or voltage. Crystals are extensively used in oscillators
- Inductors
  - Inductors
  - Adjustable Inductors
  - Delay Lines
  - Fixed Inductors
  - Signal Transformers
  - Wireless Charging Coils
  - Inductors are passive electronic components that store electrical energy in the form of a magnetic field. They are typically made of a coil of wire wound around a core material and are used in various electrical circuits and systems. Inductors resist changes in current flow and are commonly employed in filtering, energy storage, impedance matching, and signal conditioning applications. They play a vital role in applications such as power supplies, radio frequency (RF) circuits, motor control, and electromagnetic compatibility (EMC) solutions.
- Filters
  - Filters
  - Cable Ferrites
  - Ceramic Filters
  - Common Mode Chokes
  - DSL Filters
  - EMI/RFI Filters
  - Feed Through Capacitors
  - Ferrite Beads and Chips
  - Ferrite Disks and Plates
  - Filters Accessories
  - Helical Filters
  - Monolithic Crystals
  - Power Line Filter Modules
  - RF Filters
  - SAW Filters
  - Filters are electronic components designed to selectively allow or block certain frequencies or ranges of frequencies in a signal or waveform. They are used to remove unwanted noise, interference, or specific frequency components, and to shape or modify the frequency response of a circuit or system. Filters can be classified into different types, such as low-pass, high-pass, band-pass, and band-stop filters, each serving specific purposes in applications ranging from audio and communication systems to power electronics and signal processing.
- View All

Items : %s%s

Integrated Circuits (ICs)

Integrated circuits, often referred to as ICs or microchips, are miniature electronic circuits that contain thousands to billions of transistors, resistors, capacitors, and other electronic components on a small semiconductor material. ICs are the building blocks of modern electronics and are used in a vast array of devices and systems, ranging from smartphones and computers to automotive electronics and medical devices. They provide compactness, high functionality, and improved performance by integrating multiple electronic functions onto a single chip.

Name	Manufacturer	Quantity	Datasheet	Factory Lead Time	Packaging	Published	Series	Part Status	Moisture Sensitivity Level (MSL)	Number of Terminations	ECCN Code	Length	RoHS Status	Package / Case	Reach Compliance Code	Width	Mounting Type	Operating Temperature	Technology	Height Seated (Max)	HTS Code	Number of Functions	Type	Voltage - Input (Max)	JESD-609 Code	Terminal Finish	Terminal Position	Terminal Form	Peak Reflow Temperature (Cel)	Supply Voltage	Time@Peak Reflow Temperature-Max (s)	Base Part Number	Pin Count	Output Type	Surface Mount	Terminal Pitch	JESD-30 Code	Supply Voltage-Min (Vsup)	Subcategory	Qualification Status	Power Supplies	Supply Voltage-Max (Vsup)	Number of Circuits	Current - Output	Output	Supplier Device Package	Input	Speed	Oscillator Type	Frequency (Max)	Output Configuration	Screening Level	Ethernet	USB	SATA	Core Processor	RAM Size	Number of I/O	Address Bus Width	Supply Current-Max	Voltage - Supply	Boundary Scan	Low Power Mode	External Data Bus Width	Format	uPs/uCs/Peripheral ICs Type	Peripherals	Clock Frequency	Bit Size	Has ADC	DMA Channels	PWM Channels	DAC Channels	Current - Quiescent (Iq)	Voltage - Supply (Vcc/Vdd)	Control Features	Ratio - Input:Output	Voltage - Output (Min/Fixed)	Number of Regulators	Protection Features	PSRR	Voltage Dropout (Max)	PLL	ROM (words)	On Chip Program ROM Width	CPU Family	Integrated Cache	Differential - Input:Output	Divider/Multiplier	Voltage - I/O	EEPROM Size	Program Memory Type	Number of Cores/Bus Width	Graphics Acceleration	RAM Controllers	Co-Processors/DSP	Security Features	Display & Interface Controllers	Additional Interfaces	Connectivity	Core Size	Program Memory Size	Data Converter
MC9S12GC128MPBE	NXP USA Inc.	RFQ Min: 1 Mult: 1	download		Tray		HCS12	Obsolete	3 (168 Hours)				ROHS3 Compliant	52-LQFP			Surface Mount	-40°C~125°C TA														MC9S12GC128																25MHz	Internal								4K x 8	35									POR, PWM, WDT								2.35V~5.5V																	FLASH								EBI/EMI, SCI, SPI	16-Bit	128KB 128K x 8	A/D 8x10b
MC9RS08KA1CSC	NXP USA Inc.	RFQ Min: 1 Mult: 1	download	10 Weeks	Tube	2007	RS08	Active	3 (168 Hours)	8	EAR99		ROHS3 Compliant	8-SOIC (0.154, 3.90mm Width)		3.9mm	Surface Mount	-40°C~85°C TA	CMOS	1.75mm					e3	MATTE TIN	DUAL	GULL WING	260	3V	40	MC9RS08KA1			YES	1.27mm	R-PDSO-G8	1.8V	Microcontrollers	Not Qualified	1.8/5.5V	5.5V						10MHz	Internal								63 x 8	4								MICROCONTROLLER	LVD, POR, WDT		8	NO	NO	NO	NO		1.8V~5.5V																	FLASH									8-Bit	1KB 1K x 8
MC912DG128CCPVE	NXP USA Inc.	RFQ Min: 1 Mult: 1	download	10 Weeks	Tray	2003	HC12	Not For New Designs	3 (168 Hours)	112	EAR99	20mm	ROHS3 Compliant	112-LQFP		20mm	Surface Mount	-40°C~85°C	HCMOS	1.6mm	8542.31.00.01				e3	MATTE TIN	QUAD	GULL WING	260	5V	40	MC912DG128			YES	0.65mm	S-PQFP-G112	4.5V		Not Qualified		5.5V						8MHz	Internal							CPU12	8K x 8	69	16					16		MICROCONTROLLER	POR, PWM, WDT	16MHz	16	YES	NO	YES	NO		4.5V~5.5V																2K x 8	FLASH								CANbus, I2C, SCI, SPI	16-Bit	128KB 128K x 8	A/D 16x8/10b
MC9S08GT16CFDER	NXP USA Inc.	RFQ Min: 1 Mult: 1	download		Tape & Reel (TR)		S08	Obsolete	3 (168 Hours)				ROHS3 Compliant	48-VFQFN Exposed Pad			Surface Mount	-40°C~85°C TA														MC9S08GT16																40MHz	Internal								1K x 8	39									LVD, POR, PWM, WDT								1.8V~3.6V																	FLASH								I2C, SCI, SPI	8-Bit	16KB 16K x 8	A/D 8x10b
MC9S08PA8AVWJR	NXP USA Inc.	RFQ Min: 1 Mult: 1	download	20 Weeks	Tape & Reel (TR)	2013	S08	Active	3 (168 Hours)	20		12.8mm	ROHS3 Compliant	20-SOIC (0.295, 7.50mm Width)		7.5mm	Surface Mount	-40°C~105°C TA									DUAL	GULL WING	260	3V	40				YES	1.27mm		2.7V				5.5V						20MHz	Internal								2K x 8	18								MICROCONTROLLER	LVD, POR, PWM, WDT	20MHz	8	YES	NO	YES			2.7V~5.5V																256 x 8	FLASH								I2C, LINbus, SPI, UART/USART	8-Bit	8KB 8K x 8	A/D 12x12b
MK10DN32VFM5	NXP USA Inc.	RFQ Min: 1 Mult: 1		13 Weeks	Tray	2002	Kinetis K10	Active	3 (168 Hours)	32	3A991.A.2	5mm	ROHS3 Compliant	32-VFQFN Exposed Pad		5mm	Surface Mount	-40°C~105°C TA	CMOS	1mm	8542.31.00.01						QUAD	NO LEAD	260	3.3V	40	MK10DN32			YES	0.5mm	S-XQCC-N32	1.71V	Microcontrollers	Not Qualified	1.8/3.3V	3.6V						50MHz	Internal							ARM® Cortex®-M4	8K x 8	24		18.2mA						MICROCONTROLLER, RISC	DMA, I2S, LVD, POR, PWM, WDT	50MHz	32	YES	YES	YES	YES		1.71V~3.6V									32768		CORTEX-M4						FLASH								I2C, IrDA, SPI, UART/USART	32-Bit	32KB 32K x 8	A/D 10x16b
SPC5604EEF1MLH	NXP USA Inc.	RFQ Min: 1 Mult: 1			Tray	2007	MPC56xx Qorivva	Discontinued	3 (168 Hours)		5A992		ROHS3 Compliant	64-LQFP			Surface Mount	-40°C~125°C TA	CMOS		8542.31.00.01											SPC5604																64MHz	Internal							e200z0h	96K x 8	39								MICROCONTROLLER	DMA, POR, WDT								3V~3.6V																64K x 8	FLASH								CANbus, Ethernet, I2C, LINbus, SCI, SPI	32-Bit	512KB 512K x 8	A/D 4x10b
MPC9772FAR2	NXP USA Inc.	RFQ Min: 1 Mult: 1	download		Tape & Reel (TR)	2004		Obsolete	2 (1 Year)				Non-RoHS Compliant	52-LQFP			Surface Mount	-40°C~85°C					Clock Generator, Fanout Distribution, Multiplexer, Zero Delay Buffer									MPC9772											1		LVCMOS	52-TQFP (10x10)	LVCMOS, Crystal			240MHz											3.135V~3.465V																3:12						Yes with Bypass					No/No	Yes/No
74HC7046ADB,118	NXP USA Inc.	RFQ Min: 1 Mult: 1	download		Tape & Reel (TR)		74HC	Obsolete	1 (Unlimited)	16		6.2mm	ROHS3 Compliant	16-SSOP (0.209, 5.30mm Width)	unknown	5.3mm	Surface Mount	-40°C~125°C	CMOS	2mm		1	Phase Lock Loop (PLL)		e4	NICKEL PALLADIUM GOLD	DUAL	GULL WING	260	5V	30	74HC7046	16		YES	0.65mm		2V	PLL or Frequency Synthesis Circuits	Not Qualified	2/6V	6V	1				Clock			21MHz											3V~6V																2:3						Yes					No/No
S912XET256BMAA	NXP USA Inc.	RFQ Min: 1 Mult: 1		16 Weeks	Tray	1996	HCS12X	Active	3 (168 Hours)				ROHS3 Compliant	80-QFP			Surface Mount	-40°C~125°C TA																														50MHz	External								16K x 8	59									LVD, POR, PWM, WDT								1.72V~5.5V																4K x 8	FLASH								CANbus, EBI/EMI, I2C, IrDA, SCI, SPI	16-Bit	256KB 256K x 8	A/D 8x12b
MPC9350FA	NXP USA Inc.	RFQ Min: 1 Mult: 1	download		Tray	2003		Obsolete	2 (1 Year)				Non-RoHS Compliant	32-LQFP			Surface Mount	-40°C~85°C					Clock Generator, Fanout Distribution, Multiplexer									MPC9350											1		LVCMOS	32-LQFP (7x7)	LVCMOS, Crystal			200MHz											2.375V~3.465V																3:9						Yes with Bypass					No/No	Yes/No
S9S08RN8W2MTGR	NXP USA Inc.	RFQ Min: 1 Mult: 1	download	16 Weeks	Tape & Reel (TR)	2012	S08	Active	3 (168 Hours)				ROHS3 Compliant	16-TSSOP (0.173, 4.40mm Width)			Surface Mount	-40°C~125°C TA											260		40																	20MHz	Internal								2K x 8	12								MICROPROCESSOR	LVD, POR, PWM, WDT								2.7V~5.5V																256 x 8	FLASH								I2C, LINbus, SPI, UART/USART	8-Bit	8KB 8K x 8	A/D 8x10b
MC145170DT2	NXP USA Inc.	RFQ Min: 1 Mult: 1	download		Tube	2003		Obsolete	1 (Unlimited)				Non-RoHS Compliant	16-TSSOP (0.173, 4.40mm Width)			Surface Mount	-40°C~85°C					Clock/Frequency Synthesizer, Fanout Buffer (Distribution)									MC145170											1				Clock			185MHz											2.7V~5.5V																1:2						Yes					No/No	Yes/No
P89V51RC2FBC,557	NXP USA Inc.	RFQ Min: 1 Mult: 1	download		Tray	2007	89V	Obsolete	3 (168 Hours)	44	3A991.A.2	10mm	ROHS3 Compliant	44-TQFP		10mm	Surface Mount	-40°C~85°C TA	CMOS	1.2mm	8542.31.00.01						QUAD	GULL WING	260	5V	30	P89V51R	44		YES	0.8mm	S-PQFP-G44	4.5V	Microcontrollers	Not Qualified	5V	5.5V						40MHz	Internal							8051	1K x 8	32	16	50mA				8		MICROCONTROLLER	Brown-out Detect/Reset, POR, PWM, WDT	40MHz	8	NO	NO	YES	NO		4.5V~5.5V																	FLASH								SPI, UART/USART	8-Bit	32KB 32K x 8
S912B32E4MFUE8R	NXP USA Inc.	RFQ Min: 1 Mult: 1		12 Weeks	Tape & Reel (TR)	1994	HC12	Not For New Designs	3 (168 Hours)				ROHS3 Compliant	80-QFP			Surface Mount	-40°C~125°C TA																														8MHz	External							CPU12	1K x 8	63								MICROCONTROLLER	POR, PWM, WDT								4.5V~5.5V																768 x 8	FLASH								SCI, SPI	16-Bit	32KB 32K x 8	A/D 8x10b
MC145158DW2	NXP USA Inc.	RFQ Min: 1 Mult: 1	download		Tube	2000		Obsolete	1 (Unlimited)				Non-RoHS Compliant	16-SOIC (0.295, 7.50mm Width)			Surface Mount	-40°C~85°C					PLL Clock/Frequency Synthesizer									MC145158											1		Clock	16-SOIC	Clock			25MHz											3V~9V																1:1						Yes					No/No	Yes/No
MPC8308CZQAFD	NXP USA Inc.	RFQ Min: 1 Mult: 1			Tray	2006	MPC83xx	Obsolete	3 (168 Hours)		3A991.A.2		ROHS3 Compliant	473-LFBGA				-40°C~105°C TA	CMOS		8542.31.00.01				e0	Tin/Lead (Sn/Pb)			260		40	MPC8308																333MHz					10/100/1000Mbps (3)	USB 2.0 (1)		PowerPC e300c3										MICROPROCESSOR, RISC																								1.8V 2.5V 3.3V			1 Core 32-Bit	No	DDR2				DUART, HSSI, I2C, MMC/SD/SDIO, SPI
MCF52252AF80	NXP USA Inc.	RFQ Min: 1 Mult: 1		10 Weeks	Tray	2004	MCF5225x	Active	3 (168 Hours)	100	5A992	14mm	ROHS3 Compliant	100-LQFP		14mm	Surface Mount	0°C~70°C TA	CMOS		8542.31.00.01				e3	MATTE TIN	QUAD	GULL WING	260	3.3V	40	MCF52252			YES	0.5mm	S-PQFP-G100	3V	Microcontrollers	Not Qualified	3.3V	3.6V						80MHz	Internal							Coldfire V2	32K x 8	56								MICROCONTROLLER, RISC	DMA, LVD, POR, PWM, WDT	80MHz	32	YES	YES	YES	NO		3V~3.6V									262144								FLASH								CANbus, Ethernet, I2C, QSPI, UART/USART, USB OTG	32-Bit	256KB 256K x 8	A/D 8x12b
KMPC850SRVR80BU	NXP USA Inc.	RFQ Min: 1 Mult: 1	download		Tray	2001	MPC8xx	Obsolete	3 (168 Hours)				ROHS3 Compliant	256-BBGA				0°C~95°C TA														MPC850																80MHz					10Mbps (1)	USB 1.x (1)																																				3.3V			1 Core 32-Bit	No	DRAM	Communications; CPM			HDLC/SDLC, I2C, IrDA, PCMCIA-ATA, TDM, UART/USART
MCIMX6QP5EYM1AA	NXP USA Inc.	RFQ Min: 1 Mult: 1	download	15 Weeks	Tray	2002	i.MX6QP	Active	3 (168 Hours)	624	5A992	21mm	ROHS3 Compliant	624-LFBGA, FCBGA				-20°C~105°C TJ	CMOS	1.6mm	8542.31.00.01						BOTTOM	BALL	NOT SPECIFIED		NOT SPECIFIED				YES	0.8mm	S-PBGA-B624	1.35V				1.5V						1.0GHz					10/100/1000Mbps (1)	USB 2.0 + PHY (3), USB 2.0 OTG + PHY (1)	SATA 3Gbps (1)	ARM® Cortex®-A9			26			YES	YES	64	FIXED POINT	MICROPROCESSOR, RISC																					YES			1.8V 2.5V 2.8V 3.3V			4 Core 32-Bit	Yes	LPDDR2, DDR3L, DDR3	Multimedia; NEON™ SIMD	ARM TZ, A-HAB, CAAM, CSU, SJC, SNVS	HDMI, Keypad, LCD, LVDS, MIPI/DSI, Parallel	CAN, EBI/EMI, I2C, I2S, MMC/SD/SDIO, SAI, SPI, SSI, S/PDIF, UART
MCIMX6X1AVO08ACR	NXP USA Inc.	RFQ Min: 1 Mult: 1	download	12 Weeks	Tape & Reel (TR)	2017	i.MX6SX	Active	3 (168 Hours)				ROHS3 Compliant	400-LFBGA				-40°C~125°C TJ																														200MHz, 800MHz					10/100/1000Mbps (2)	USB 2.0 + PHY (1), USB 2.0 OTG + PHY (2)		ARM® Cortex®-A9, ARM® Cortex®-M4																																		1.8V 2.5V 2.8V 3.15V			2 Core 32-Bit	No	LPDDR2, LVDDR3, DDR3	Multimedia; NEON™ MPE	A-HAB, ARM TZ, CAAM, CSU, SNVS, System JTAG, TVDECODE	Keypad, LCD	AC'97, CAN, I2C, I2S, MMC/SD/SDIO, SAI, SPDIF, SPI, SSI, UART
MPC9608FA	NXP USA Inc.	RFQ Min: 1 Mult: 1	download		Tray	2004		Obsolete	2 (1 Year)				Non-RoHS Compliant	32-LQFP			Surface Mount	-40°C~85°C					Fanout Distribution, Multiplexer, Zero Delay Buffer									MPC9608											1		LVCMOS	32-LQFP (7x7)	LVCMOS			200MHz											3.135V~3.465V																1:10						Yes with Bypass					No/No	Yes/No
MPC93R51FA	NXP USA Inc.	RFQ Min: 1 Mult: 1	download		Tray	2003		Obsolete	2 (1 Year)				Non-RoHS Compliant	32-LQFP			Surface Mount	0°C~70°C					Clock Driver, Clock Generator, Fanout Distribution, Multiplexer, Zero Delay Buffer									MPC93R51											1		LVCMOS	32-LQFP (7x7)	LVCMOS, LVPECL			240MHz											3.135V~3.465V																2:9						Yes with Bypass					Yes/No	Yes/Yes
MC8640DTHX1067NC	NXP USA Inc.	RFQ Min: 1 Mult: 1			Bulk	2002	MPC86xx	Obsolete	3 (168 Hours)				Non-RoHS Compliant	1023-BCBGA, FCCBGA				-40°C~105°C TA														MC8640																1.067GHz					10/100/1000Mbps (4)			PowerPC e600																																		1.8V 2.5V 3.3V			2 Core 32-Bit	No	DDR, DDR2				DUART, HSSI, I2C, RapidIO
SP5747CHK0AVMJ6R	NXP USA Inc.	RFQ Min: 1 Mult: 1		12 Weeks	Tape & Reel (TR)		MPC57xx	Active	3 (168 Hours)	256		17mm	ROHS3 Compliant	256-LBGA		17mm	Surface Mount	-40°C~105°C TA									BOTTOM	BALL	260	1.25V	40				YES	1mm		1.2V				1.32V						80MHz/160MHz	Internal							e200z2, e200z4	512K x 8	178								MICROCONTROLLER, RISC	DMA, LVD, POR, WDT	40MHz	32	YES	YES	NO			3V~5.5V																	FLASH								CANbus, Ethernet, I2C, LINbus, SAI, SPI, USB, USB OTG	32-Bit Dual-Core	4MB 4M x 8	A/D 80x10b, 64x12b
TDA3617J/N1,112	NXP USA Inc.	RFQ Min: 1 Mult: 1	download		Tube	1998		Obsolete	1 (Unlimited)				ROHS3 Compliant	9-SIP Formed Leads			Through Hole	-40°C~85°C						17.5V								TDA3617		Fixed										1.3A 600mA 300mA							Positive																							40μA		Enable, Hold		9V 5V 3.3V	3	Load Dump, Over Current, Over Temperature, Short Circuit, Transient Voltage	70dB (3kHz)	1V @ 1.3A 1.5V @ 600mA -
SPC5746CK1MKU2	NXP USA Inc.	RFQ Min: 1 Mult: 1	download	17 Weeks	Tray		MPC57xx	Active		176		24mm		176-LQFP Exposed Pad		24mm	Surface Mount	-40°C~125°C TA	CMOS	1.6mm							QUAD	GULL WING		1.2V					YES	0.5mm	S-PQFP-G176	1.08V				1.32V						80MHz/160MHz	Internal			ISO 26262				e200z2, e200z4	512K x 8	129								MICROCONTROLLER, RISC	DMA, LVD, POR, WDT	40MHz	32	YES	YES	NO	NO		3V~5.5V										8							FLASH								CANbus, Ethernet, I2C, LINbus, SAI, SPI, USB, USB OTG	32-Bit Dual-Core	3MB 3M x 8	A/D 80x10b, 64x12b
S9S08RN32W1CLC	NXP USA Inc.	RFQ Min: 1 Mult: 1	download	16 Weeks	Tray	2012	S08	Active	3 (168 Hours)				ROHS3 Compliant	32-LQFP			Surface Mount	-40°C~85°C TA											260		40																	20MHz	Internal								4K x 8	26								MICROPROCESSOR	LVD, POR, PWM, WDT								2.7V~5.5V																256 x 8	FLASH								I2C, LINbus, SPI, UART/USART	8-Bit	32KB 32K x 8	A/D 16x12b
FS32K144HFT0MLLR	NXP USA Inc.	RFQ Min: 1 Mult: 1	download	16 Weeks	Tape & Reel (TR)		S32K	Active	3 (168 Hours)	100		14mm	ROHS3 Compliant	100-LQFP		14mm	Surface Mount	-40°C~125°C TA									QUAD	GULL WING	260	5V	40				YES	0.5mm		2.7V				5.5V						80MHz	Internal							ARM® Cortex®-M4F	64K x 8	89									POR, PWM, WDT	40MHz	32	YES	YES	YES			2.7V~5.5V																4K x 8	FLASH								CANbus, FlexIO, I2C, LINbus, SPI, UART/USART	32-Bit	512KB 512K x 8	A/D 16x12b; D/A 1x8b
SPC5644CK0VLU8R	NXP USA Inc.	RFQ Min: 1 Mult: 1		12 Weeks	Tape & Reel (TR)		MPC56xx Qorivva	Active	3 (168 Hours)				ROHS3 Compliant	176-LQFP			Surface Mount	-40°C~105°C TA														SPC5644																80MHz/120MHz	Internal							e200z4d, e200z0h	192K x 8	147									DMA, POR, PWM, WDT								3V~5.5V																64K x 8	FLASH								CANbus, Ethernet, I2C, LINbus, SCI, SPI	32-Bit Dual-Core	1.5MB 1.5M x 8	A/D 27x10b, 5x12b

MC9S12GC128MPBE NXP USA Inc.
128KB 128K x 8 FLASH 16-Bit Microcontroller HCS12 Series MC9S12GC128 52-LQFP

Price: 0.0000
RFQ
MC9RS08KA1CSC NXP USA Inc.
1KB 1K x 8 FLASH 8-Bit Microcontroller RS08 Series MC9RS08KA1 3V 8-SOIC (0.154, 3.90mm Width)

Price: 0.0000
RFQ
MC912DG128CCPVE NXP USA Inc.
128KB 128K x 8 FLASH CPU12 16-Bit Microcontroller HC12 Series MC912DG128 5V 112-LQFP

Price: 0.0000
RFQ
MC9S08GT16CFDER NXP USA Inc.
16KB 16K x 8 FLASH 8-Bit Microcontroller S08 Series MC9S08GT16 48-VFQFN Exposed Pad

Price: 0.0000
RFQ
MC9S08PA8AVWJR NXP USA Inc.
8KB 8K x 8 FLASH 8-Bit Microcontroller S08 Series 3V 20-SOIC (0.295, 7.50mm Width)

Price: 0.0000
RFQ
MK10DN32VFM5 NXP USA Inc.
32KB 32K x 8 FLASH ARM® Cortex®-M4 32-Bit Microcontroller Kinetis K10 Series MK10DN32 3.3V 32-VFQFN Exposed Pad

Price: 0.0000
RFQ
SPC5604EEF1MLH NXP USA Inc.
512KB 512K x 8 FLASH e200z0h 32-Bit Microcontroller MPC56xx Qorivva Series SPC5604 64-LQFP

Price: 0.0000
RFQ
MPC9772FAR2 NXP USA Inc.
Clock Generator, Fanout Distribution, Multiplexer, Zero Delay Buffer 240MHz MPC9772 Clock Generators 52-LQFP Surface Mount 3.135V~3.465V Tape & Reel (TR)

Price: 0.0000
RFQ
74HC7046ADB,118 NXP USA Inc.
5V Phase Lock Loop (PLL) 21MHz 74HC7046 Clock Generators 74HC Series 16 Pins 16-SSOP (0.209, 5.30mm Width) 16 Terminals Surface Mount 3V~6V Tape & Reel (TR)

Price: 0.0000
RFQ
S912XET256BMAA NXP USA Inc.
256KB 256K x 8 FLASH 16-Bit Microcontroller HCS12X Series 80-QFP

Price: 0.0000
RFQ
MPC9350FA NXP USA Inc.
Clock Generator, Fanout Distribution, Multiplexer 200MHz MPC9350 Clock Generators 32-LQFP Surface Mount 2.375V~3.465V Tray

Price: 0.0000
RFQ
S9S08RN8W2MTGR NXP USA Inc.
8KB 8K x 8 FLASH 8-Bit Microcontroller S08 Series 16-TSSOP (0.173, 4.40mm Width)

Price: 0.0000
RFQ
MC145170DT2 NXP USA Inc.
Clock/Frequency Synthesizer, Fanout Buffer (Distribution) 185MHz MC145170 Clock Generators 16-TSSOP (0.173, 4.40mm Width) Surface Mount 2.7V~5.5V Tube

Price: 0.0000
RFQ
P89V51RC2FBC,557 NXP USA Inc.
32KB 32K x 8 FLASH 8051 8-Bit Microcontroller 89V Series P89V51R 5V 44-TQFP

Price: 0.0000
RFQ
S912B32E4MFUE8R NXP USA Inc.
32KB 32K x 8 FLASH CPU12 16-Bit Microcontroller HC12 Series 80-QFP

Price: 0.0000
RFQ
MC145158DW2 NXP USA Inc.
PLL Clock/Frequency Synthesizer 25MHz MC145158 Clock Generators 16-SOIC (0.295, 7.50mm Width) Surface Mount 3V~9V Tube

Price: 0.0000
RFQ
MPC8308CZQAFD NXP USA Inc.
PowerPC e300c3 Microprocessor MPC83xx Series MPC8308 473-LFBGA

Price: 0.0000
RFQ
MCF52252AF80 NXP USA Inc.
256KB 256K x 8 FLASH Coldfire V2 32-Bit Microcontroller MCF5225x Series MCF52252 3.3V 100-LQFP

Price: 0.0000
RFQ
KMPC850SRVR80BU NXP USA Inc.
Microprocessor MPC8xx Series MPC850 256-BBGA

Price: 0.0000
RFQ
MCIMX6QP5EYM1AA NXP USA Inc.
0.8mm ARM? Cortex?-A9 Microprocessor i.MX6QP Series 624-LFBGA, FCBGA

Price: 0.0000
RFQ
MCIMX6X1AVO08ACR NXP USA Inc.
ARM? Cortex?-A9, ARM? Cortex?-M4 Microprocessor i.MX6SX Series 400-LFBGA

Price: 0.0000
RFQ
MPC9608FA NXP USA Inc.
Fanout Distribution, Multiplexer, Zero Delay Buffer 200MHz MPC9608 Clock Generators 32-LQFP Surface Mount 3.135V~3.465V Tray

Price: 0.0000
RFQ
MPC93R51FA NXP USA Inc.
Clock Driver, Clock Generator, Fanout Distribution, Multiplexer, Zero Delay Buffer 240MHz MPC93R51 Clock Generators 32-LQFP Surface Mount 3.135V~3.465V Tray

Price: 0.0000
RFQ
MC8640DTHX1067NC NXP USA Inc.
PowerPC e600 Microprocessor MPC86xx Series MC8640 1023-BCBGA, FCCBGA

Price: 0.0000
RFQ
SP5747CHK0AVMJ6R NXP USA Inc.
4MB 4M x 8 FLASH e200z2, e200z4 32-Bit Dual-Core Microcontroller MPC57xx Series 1.25V 256-LBGA

Price: 0.0000
RFQ
TDA3617J/N1,112 NXP USA Inc.
Enable, Hold Fixed TDA3617 PMIC 9-SIP Formed Leads

Price: 0.0000
RFQ
SPC5746CK1MKU2 NXP USA Inc.
3MB 3M x 8 FLASH e200z2, e200z4 32-Bit Dual-Core Microcontroller MPC57xx Series 1.2V 176-LQFP Exposed Pad

Price: 0.0000
RFQ
S9S08RN32W1CLC NXP USA Inc.
32KB 32K x 8 FLASH 8-Bit Microcontroller S08 Series 32-LQFP

Price: 0.0000
RFQ
FS32K144HFT0MLLR NXP USA Inc.
512KB 512K x 8 FLASH ARM® Cortex®-M4F 32-Bit Microcontroller S32K Series 5V 100-LQFP

Price: 0.0000
RFQ
SPC5644CK0VLU8R NXP USA Inc.
1.5MB 1.5M x 8 FLASH e200z4d, e200z0h 32-Bit Dual-Core Microcontroller MPC56xx Qorivva Series SPC5644 176-LQFP

Price: 0.0000
RFQ

Integrated Circuits (ICs)

Additional Feature

Applications

Base Part Number

Capacitance

Connector Type

Contact Material

Contact Plating

Core Size

Current - Supply

Depth

Diode Element Material

ECCN Code

Factory Lead Time

Feature

fmax-Min

Frequency

Housing Material

HTS Code

Insulation Material

JESD-30 Code

JESD-609 Code

JTAG BST

Lifecycle Status

Manufacturer Package Identifier

Material

Max Operating Temperature

Max Power Dissipation

Mfr

Min Operating Temperature

Moisture Sensitivity Level (MSL)

Mount

Mounting Feature

Mounting Type

Number of Pins

Number of Positions

Number of Rows

Number of Terminals

Number of Terminations

Operating Supply Current

Operating Temperature

P1dB

Package / Case

Packaging

Packing Method

Part Status

Pbfree Code

Peak Reflow Temperature (Cel)

Pin Count

Power (Watts)

Power Rating

Product Weight (g)

Prop. Delay@Nom-Sup

PSRR-Min

Published

Resistance

RoHS Status

Series

Subcategory

Supplier Device Package

Supply Voltage

Surface Mount

Technology

Temperature Coefficient

Temperature Grade

Terminal Finish

Terminal Form

Terminal Position

Terminal Shape

Termination

Time@Peak Reflow Temperature-Max (s)

Tolerance

Transistor Element Material

Type

USB

Voltage - Rated

Voltage - Rated DC

Voltage - Supply

Weight

How can I quickly find answers to my questions?