Call us: +86 0755-82563503

Currency: $ US Dollar

Items : %s%s

CPLDs

Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Datasheet Factory Lead Time Mount Packaging Published Series Pbfree Code Part Status Moisture Sensitivity Level (MSL) Number of Terminations ECCN Code Max Operating Temperature Min Operating Temperature Operating Supply Voltage Length RoHS Status Lead Free Contact Plating Radiation Hardening Number of Pins Additional Feature Package / Case Max Supply Voltage Reach Compliance Code Min Supply Voltage Frequency Width Mounting Type Operating Temperature Technology Operating Supply Current Height Seated (Max) HTS Code Nominal Supply Current Max Frequency 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 Temperature Grade Surface Mount Terminal Pitch JESD-30 Code Supply Voltage-Min (Vsup) Subcategory Qualification Status Power Supplies Supply Voltage-Max (Vsup) Propagation Delay Turn On Delay Time Supplier Device Package Frequency (Max) Memory Type RAM Size Number of I/O Organization Number of Programmable I/O Clock Frequency Number of Gates Output Function Programmable Type Number of Macro Cells Number of Logic Blocks (LABs) JTAG BST Number of Dedicated Inputs Voltage Supply - Internal Number of Logic Elements/Blocks Number of Logic Elements/Cells Speed Grade Delay Time tpd(1) Max In-System Programmable Programmable Logic Type
LC4128ZC-42MN132C LC4128ZC-42MN132C Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Surface Mount Tray 2000 ispMACH® 4000Z yes Active 3 (168 Hours) 132 EAR99 1.8V ROHS3 Compliant Lead Free 256 YES 132-LFBGA, CSPBGA 1.9V not_compliant 1.7V Surface Mount 0°C~90°C TJ CMOS 168μA 1.35mm 168μA 220MHz e1 BOTTOM BALL 260 1.8V 40 LC4128 132 0.5mm S-PBGA-B132 Programmable Logic Devices Not Qualified 4.2 ns EEPROM 96 680 MACROCELL In System Programmable 128 540 YES 4 1.7V~1.9V 8 4.2ns
LC4064V-10TN44I LC4064V-10TN44I Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Surface Mount Tray 2000 ispMACH® 4000V yes Active 3 (168 Hours) 44 EAR99 3.3V 10mm ROHS3 Compliant Lead Free No 44 YES 44-TQFP 3.6V 3V 125MHz 10mm Surface Mount -40°C~105°C TJ CMOS 12mA 1.2mm 12mA e3 Matte Tin (Sn) QUAD GULL WING 260 3.3V 40 LC4064 44 0.8mm Programmable Logic Devices 10 ns 10 ns EEPROM 30 272 MACROCELL In System Programmable 64 YES 2 3V~3.6V 4 36
XC9536-10VQ44I XC9536-10VQ44I Xilinx 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tray 1996 XC9500 no Obsolete 3 (168 Hours) 44 EAR99 5V Non-RoHS Compliant Contains Lead No 44 YES 44-TQFP Surface Mount -40°C~85°C TA CMOS 66.7MHz e0 TIN LEAD QUAD GULL WING 225 5V 30 XC9536 44 Programmable Logic Devices 10 ns FLASH 34 800 MACROCELL In System Programmable (min 10K program/erase cycles) 36 YES 4.5V~5.5V 2 8 10
XC95216-15HQ208C XC95216-15HQ208C Xilinx 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tray 1996 XC9500 no Obsolete 3 (168 Hours) 208 EAR99 5V Non-RoHS Compliant Contains Lead No 208 YES 208-BFQFP Exposed Pad Surface Mount 0°C~70°C TA CMOS 4.1mm 55.6MHz e0 QUAD GULL WING 225 5V 30 XC95216 208 0.4mm Programmable Logic Devices 15 ns 15 ns FLASH 166 4800 MACROCELL In System Programmable (min 10K program/erase cycles) 216 YES 4.75V~5.25V 12 8 15
ISPLSI 3320-70LQ ISPLSI 3320-70LQ Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tray 2000 ispLSI® 3000 Obsolete 3 (168 Hours) 208 EAR99 28mm Non-RoHS Compliant YES 208-BFQFP 28mm Surface Mount 0°C~70°C TA CMOS 4.1mm 8542.39.00.01 e0 Tin/Lead (Sn85Pb15) QUAD GULL WING 225 5V 30 ISPLSI 3320 208 YES 0.5mm S-PQFP-G208 4.75V Programmable Logic Devices Not Qualified 5V 5.25V 18 ns 160 50MHz 14000 MACROCELL In System Programmable 320 YES 4.75V~5.25V 40 15ns
EPM7128ELC84-10 EPM7128ELC84-10 Altera 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount 1998 no Active 2 84 70°C 0°C 5V 29.3116mm RoHS Compliant Contains Lead No 84 PLCC 5.25V 4.75V 125MHz 29.3116mm CMOS e0 Tin/Lead (Sn/Pb) QUAD J BEND 220 5V 30 84 COMMERCIAL 1.27mm Programmable Logic Devices 10 ns 10 ns 125MHz EEPROM 68 68 2500 MACROCELL 128 8 NO 10 NO EE PLD
LC4032C-75TN48I LC4032C-75TN48I Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tray 2000 ispMACH® 4000C yes Obsolete 3 (168 Hours) 48 EAR99 1.8V 7mm RoHS Compliant Lead Free 48 YES 48-LQFP 1.95V 1.65V 7mm Surface Mount -40°C~105°C TJ CMOS 1.8mA 1.8mA 400MHz e3 Matte Tin (Sn) QUAD GULL WING 260 1.8V 40 LC4032 48 0.5mm Programmable Logic Devices Not Qualified 7.5 ns EEPROM 32 128 800 MACROCELL In System Programmable 32 YES 4 1.65V~1.95V 2 7.5ns
LC4064C-10TN48I LC4064C-10TN48I Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tray 2000 ispMACH® 4000C yes Obsolete 3 (168 Hours) 48 EAR99 1.8V 7mm RoHS Compliant Lead Free 48 YES 48-LQFP 1.95V 1.65V 125MHz 7mm Surface Mount -40°C~105°C TJ CMOS 2mA 1.2mm 2mA e3 Matte Tin (Sn) QUAD GULL WING 260 1.8V 40 LC4064 48 0.5mm Programmable Logic Devices Not Qualified 10 ns EEPROM 32 256 MACROCELL In System Programmable 64 YES 4 1.65V~1.95V 4 36
LC5512MV-75F256C LC5512MV-75F256C Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tray 2000 ispXPLD® 5000MV no Obsolete 3 (168 Hours) 256 EAR99 3.3V 17mm Non-RoHS Compliant Lead Free 256 YES 256-BGA 3.6V not_compliant 3V 200MHz 17mm Surface Mount 0°C~90°C TJ CMOS 33mA 2.1mm 8542.39.00.01 33mA e0 Tin/Lead (Sn63Pb37) BOTTOM BALL 225 3.3V 30 LC5512 256 1mm Programmable Logic Devices Not Qualified 7.5 ns EEPROM, SRAM 32kB 193 MACROCELL In System Programmable 512 YES 3V~3.6V 16
XC2C64A-5VQ100C XC2C64A-5VQ100C Xilinx 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 10 Weeks Surface Mount Tray 2001 CoolRunner II no Active 3 (168 Hours) 100 EAR99 1.8V Non-RoHS Compliant 100 REAL DIGITAL DESIGN TECHNOLOGY 100-TQFP Surface Mount 0°C~70°C TA CMOS 1.2mm 263MHz e0 QUAD GULL WING 225 1.8V 30 XC2C64A 100 Programmable Logic Devices Not Qualified 1.9V 5 ns ROMless 64 1500 MACROCELL In System Programmable 64 YES 1.7V~1.9V 4 5 4.6ns
LC4032V-25T48C LC4032V-25T48C Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tray 2000 ispMACH® 4000V Obsolete 3 (168 Hours) 90°C 0°C 3.3V Non-RoHS Compliant Lead Free 48 48-LQFP 3.6V 3V 454.5MHz Surface Mount 0°C~90°C TJ 11.8mA 11.8mA 400MHz LC4032 2.5 ns 2.5 ns 48-TQFP (7x7) EEPROM 32 128 800 In System Programmable 32 2 3V~3.6V 2 2 2.5ns
M5LV-128/104-7VI M5LV-128/104-7VI Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tray 1995 MACH® 5 Obsolete 3 (168 Hours) 144 EAR99 3.3V 20mm Non-RoHS Compliant YES 144-LQFP 3.6V not_compliant 3V 20mm Surface Mount -40°C~85°C TA CMOS 1.6mm 8542.39.00.01 100MHz e0 Tin/Lead (Sn85Pb15) QUAD GULL WING 225 3.3V 30 M5LV-128 144 YES 0.5mm S-PQFP-G144 Programmable Logic Devices Not Qualified 7.5 ns EEPROM 104 516 5000 MACROCELL In System Programmable 128 YES 3V~3.6V 7.5ns
XC2C256-6PQG208C XC2C256-6PQG208C Xilinx 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 10 Weeks Surface Mount Tray 2001 CoolRunner II yes Active 3 (168 Hours) 208 EAR99 1.8V 28mm ROHS3 Compliant Tin 208 REAL DIGITAL DESIGN TECHNOLOGY 208-BFQFP 1.9V 1.7V 28mm Surface Mount 0°C~70°C TA CMOS 4.1mm 8542.39.00.01 256MHz e3 QUAD GULL WING 245 1.8V 30 XC2C256 208 0.5mm Programmable Logic Devices Not Qualified 6 ns 6 ns 173 6000 MACROCELL In System Programmable 256 YES 1.7V~1.9V 16 6 5.7ns
CY38100V208-125NTI CY38100V208-125NTI Cypress Semiconductor Corp 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 Bulk 208 85°C -40°C 28mm RoHS Compliant No CAN ALSO OPERATE WITH A 3.3V SUPPLY PQFP 28mm CMOS 3.77mm 8542.39.00.01 QUAD GULL WING 2.5V 208 INDUSTRIAL YES 0.5mm 2.3V Programmable Logic Devices 1.8/3.32.5/3.3V 2.7V 10 ns 125MHz SRAM 6kB 136 0 DEDICATED INPUTS, 136 I/O MACROCELL 1536 YES 125 YES LOADABLE PLD
5M160ZE64C5N 5M160ZE64C5N Intel 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tray 2003 MAX® V Active 3 (168 Hours) 64 EAR99 7mm RoHS Compliant YES 64-TQFP Exposed Pad 7mm Surface Mount 0°C~85°C TJ CMOS 1.2mm e3 MATTE TIN QUAD GULL WING NOT SPECIFIED 1.8V NOT SPECIFIED 5M160Z YES 0.4mm S-PQFP-G64 1.71V Programmable Logic Devices Not Qualified 1.2/3.31.8V 1.89V 14 ns 54 118.3MHz MACROCELL In System Programmable 128 YES 1.71V~1.89V 160 7.5ns
EPM9560RI240-20 EPM9560RI240-20 Intel 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tray MAX® 9000 Obsolete 3 (168 Hours) 240 32mm Non-RoHS Compliant 772 FLIP FLOPS; CONFIGURABLE I/O OPERATION WITH 3.3V OR 5V 240-BFQFP Exposed Pad 32mm Surface Mount -40°C~85°C TA CMOS 4.1mm 8542.39.00.01 e0 Tin/Lead (Sn/Pb) QUAD GULL WING 220 5V 30 EPM9560 YES 0.5mm S-PQFP-G240 4.5V Programmable Logic Devices Not Qualified 3.3/55V 5.5V 23.6 ns 191 100MHz 12000 MACROCELL In System Programmable 560 YES 4.5V~5.5V 35 20ns
LC4032B-5TN44C LC4032B-5TN44C Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tray 2000 ispMACH® 4000B yes Obsolete 3 (168 Hours) 44 EAR99 2.5V 10mm RoHS Compliant Lead Free 44 YES 44-TQFP 2.7V 2.3V 10mm Surface Mount 0°C~90°C TJ CMOS 11.8mA 11.8mA 400MHz e3 Matte Tin (Sn) QUAD GULL WING 260 2.5V 40 LC4032 44 0.8mm Programmable Logic Devices Not Qualified 5 ns EEPROM 30 100 800 MACROCELL In System Programmable 32 YES 2 2.3V~2.7V 2 5ns
EPM7064SLC84-10 EPM7064SLC84-10 Intel 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tray MAX® 7000S Obsolete 2 (1 Year) 84 29.3116mm Non-RoHS Compliant CONFIGURABLE I/O OPERATION WITH 3.3V OR 5V 84-LCC (J-Lead) 29.3116mm Surface Mount 0°C~70°C TA CMOS 5.08mm e0 Tin/Lead (Sn/Pb) QUAD J BEND 220 5V 30 EPM7064 YES 1.27mm Programmable Logic Devices Not Qualified 3.3/55V 5.25V 10 ns 68 125MHz 1250 MACROCELL In System Programmable 64 YES 4.75V~5.25V 4 10ns
LC4064ZE-5TN48I LC4064ZE-5TN48I Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Surface Mount Tray 2000 ispMACH® 4000ZE Active 3 (168 Hours) 48 EAR99 1.8V 7mm ROHS3 Compliant Lead Free 48 YES 48-LQFP 1.9V 1.7V 277.78MHz 7mm Surface Mount -40°C~105°C TJ CMOS 80μA 1.2mm 80μA e3 Matte Tin (Sn) QUAD GULL WING 1.8V LC4064 48 0.5mm Programmable Logic Devices Not Qualified 5.8 ns EEPROM 32 MACROCELL In System Programmable 64 YES 4 1.7V~1.9V 4
EPM7032SLI44-7N EPM7032SLI44-7N Intel 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tray MAX® 7000S Obsolete 3 (168 Hours) 44-LCC (J-Lead) Surface Mount -40°C~85°C TA EPM7032 36 600 In System Programmable 32 4.5V~5.5V 2 7.5ns
XCR3128XL-7VQ100I XCR3128XL-7VQ100I Xilinx 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 10 Weeks Tray 1996 CoolRunner XPLA3 no Active 3 (168 Hours) 100 EAR99 3.3V 14mm Non-RoHS Compliant 100 YES 100-TQFP not_compliant 14mm Surface Mount -40°C~85°C TA CMOS 1.2mm 119MHz e0 QUAD GULL WING 225 3.3V 30 100 YES 0.5mm Programmable Logic Devices Not Qualified 3.6V 7.5 ns EEPROM 84 3000 MACROCELL In System Programmable (min 1K program/erase cycles) 128 YES 3V~3.6V 8 7 7ns
EPM7256SQC208-10N EPM7256SQC208-10N Intel 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tray MAX® 7000S Obsolete 3 (168 Hours) 208 3A991 28mm RoHS Compliant 208-BFQFP compliant 28mm Surface Mount 0°C~70°C TA CMOS 4.1mm 8542.39.00.01 e3 Matte Tin (Sn) QUAD GULL WING 245 5V 40 EPM7256 YES 0.5mm S-PQFP-G208 4.75V Programmable Logic Devices Not Qualified 3.3/55V 5.25V 10 ns 164 125MHz 5000 MACROCELL In System Programmable 256 YES 4.75V~5.25V 16 10ns
ISPLSI 2064VE-200LT100 ISPLSI 2064VE-200LT100 Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tray 2000 ispLSI® 2000VE no Obsolete 3 (168 Hours) 100 EAR99 14mm Non-RoHS Compliant YES 100-LQFP not_compliant 14mm Surface Mount 0°C~70°C TA CMOS 1.6mm 8542.39.00.01 e0 Tin/Lead (Sn/Pb) QUAD GULL WING 240 3.3V 30 ISPLSI 2064 100 YES 0.5mm S-PQFP-G100 3V Programmable Logic Devices Not Qualified 3.3V 3.6V 7 ns 64 133MHz 2000 MACROCELL In System Programmable 64 NO 3V~3.6V 16 4.5ns
5M80ZM68I5N 5M80ZM68I5N Intel 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tray MAX® V Active 3 (168 Hours) 68 EAR99 5mm RoHS Compliant YES 68-TFBGA 5mm Surface Mount -40°C~100°C TJ CMOS 1.2mm 8542.39.00.01 e1 TIN SILVER COPPER BOTTOM BALL 260 1.8V 40 5M80Z YES 0.5mm S-PBGA-B68 1.71V Programmable Logic Devices Not Qualified 1.81.2/3.3V 1.89V 14 ns 52 118.3MHz MACROCELL In System Programmable 64 YES 1.71V~1.89V 80 7.5ns
XC2C512-7FTG256C XC2C512-7FTG256C Xilinx 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 10 Weeks Surface Mount Tray 2001 CoolRunner II yes Active 3 (168 Hours) 256 3A991.D 1.8V ROHS3 Compliant Lead Free No 256 YES 256-LBGA Surface Mount 0°C~70°C TA CMOS 1.55mm 8542.39.00.01 179MHz e1 Tin/Silver/Copper (Sn95.5Ag4.0Cu0.5) BOTTOM BALL 260 1.8V 30 XC2C512 256 1mm Programmable Logic Devices 1.9V 7.5 ns 212 12000 MACROCELL In System Programmable 512 YES 1.7V~1.9V 32 7 7.1ns
5M160ZM100C5N 5M160ZM100C5N Intel 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 8 Weeks Tray MAX® V Active 3 (168 Hours) 100 EAR99 6mm RoHS Compliant YES 100-TFBGA 6mm Surface Mount 0°C~85°C TJ CMOS 1.2mm 8542.39.00.01 e1 TIN SILVER COPPER BOTTOM BALL 260 1.8V 40 5M160Z YES 0.5mm S-PBGA-B100 1.71V Programmable Logic Devices Not Qualified 1.2/3.31.8V 1.89V 14 ns 79 118.3MHz MACROCELL In System Programmable 128 YES 1.71V~1.89V 160 7.5ns
M4A3-96/48-7VC M4A3-96/48-7VC Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tray 1998 ispMACH® 4A no Obsolete 3 (168 Hours) 100 EAR99 3.3V 14mm Non-RoHS Compliant YES 100-LQFP 3.6V not_compliant 3V 14mm Surface Mount 0°C~70°C TA CMOS 1.6mm 8542.39.00.01 125MHz e0 Tin/Lead (Sn/Pb) QUAD GULL WING 260 3.3V NOT SPECIFIED M4A3-96 YES 0.5mm S-PQFP-G100 Programmable Logic Devices Not Qualified 7.5 ns EEPROM 48 145 3750 MACROCELL In System Programmable 96 YES 4 3V~3.6V 7.5ns
M4-128N/64-10JC M4-128N/64-10JC Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Surface Mount Tube 1998 MACH® 4 Obsolete 3 (168 Hours) 84 EAR99 5V 29.3116mm Non-RoHS Compliant No 84 NO 84-LCC (J-Lead) 5.25V 4.75V 100MHz 29.3116mm Surface Mount 0°C~70°C TA CMOS 4.57mm 8542.39.00.01 e0 Tin/Lead (Sn85Pb15) QUAD J BEND 5V M4-128N 84 1.27mm Programmable Logic Devices 5V 10 ns 10 ns EEPROM 64 5000 MACROCELL In System Programmable 128 NO 2 4.75V~5.25V
ISPLSI 1024-60LJI ISPLSI 1024-60LJI Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube 1996 ispLSI® 1000 Obsolete 3 (168 Hours) 68 EAR99 Non-RoHS Compliant 68-LCC (J-Lead) not_compliant Surface Mount -40°C~85°C TA CMOS 4.57mm 8542.39.00.01 e0 Tin/Lead (Sn85Pb15) QUAD NO LEAD 225 5V 30 ISPLSI 1024 68 YES 1.27mm S-PQCC-N68 4.5V Programmable Logic Devices Not Qualified 5V 5.5V 25 ns 48 38MHz 4000 MACROCELL In System Programmable 64 NO 2 4.5V~5.5V 24 20ns
M5-128/68-10YC/1 M5-128/68-10YC/1 Lattice Semiconductor 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tray 1995 MACH® 5 Obsolete 3 (168 Hours) 100 EAR99 20mm Non-RoHS Compliant YES 100-BQFP 5.25V not_compliant 4.75V 14mm Surface Mount 0°C~70°C TA CMOS 3.4mm 8542.39.00.01 125MHz e0 Tin/Lead (Sn/Pb) QUAD GULL WING 225 5V 30 M5-128 100 YES 0.65mm R-PQFP-G100 Programmable Logic Devices Not Qualified 5V 10 ns EEPROM 68 5000 MACROCELL In System Programmable 128 YES 4.75V~5.25V 10ns
Settings Need Help?
Top FAQ's

How can I quickly find answers to my questions?

Please visit the Help & Support area of our website to find information regarding ordering, shipping, delivery and more.

What is my Order Status?

Registered users can track orders from their account dropdown, or click here. *Order Status may take 12 hours to update after initial order is placed.

How do I return product?

Users can begin the returns process by starting with our Returns Page.

How do I find price and availability?

Quotes can be created by registered users in myLists.

How do I create a 'HK JDW' Account?

Visit the Registration Page and enter the required information. You will receive an email confirmation when your registration is complete.

United Kingdom/GBP Summary
Fast Shipping Fast Delivery

Orders are typically delivered to United Kingdom within 48 hours depending on location.

Free Shipping Free Shipping

Free delivery to United Kingdom on orders of £33 or more. A delivery charge of £12 will be billed on all orders less than £33.

Incoterms Incoterms

DDP (Duty and customs paid by HK JDW)

Payment Options Payment Types

Credit account for qualified institutions and businesses

Payment in Advance by Wire Transfer

Visa Mastercard American Express PayPal Apple Pay Google Pay

Marketplace Marketplace Product

More Products From Fully Authorized Partners

Average Time to Ship 1-3 Days, extra ship charges may apply. Please see product page, cart, and checkout for actual ship speed.

Incoterms: CPT (Duty, customs, and applicable VAT/Tax due at time of delivery)

For more information visit Help & Support