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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 Termination ECCN Code Max Operating Temperature Min Operating Temperature Operating Supply Voltage Length RoHS Status Lead Free Contact Plating Radiation Hardening Number of Pins Package / Case Interface Max Supply Voltage REACH SVHC Reach Compliance Code Min Supply Voltage Density Frequency Height Width Thickness Mounting Type Weight Operating Temperature Technology Height Seated (Max) HTS Code Nominal Supply Current Type JESD-609 Code Terminal Finish Terminal Position 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) Number of Outputs Feature Supplier Device Package Logic Function Access Time Screening Level Memory Size Memory Type Number of Bits Voltage - Supply Time Format External Data Bus Width Data Bus Width uPs/uCs/Peripheral ICs Type Clock Frequency Word Size Time-Min Interrupt Capability Volatile Information Access Method Non-Volatile Memory Number of Timers Date Format Current - Timekeeping (Max) Voltage - Supply, Battery
X1228V14-2.7A X1228V14-2.7A Intersil (Renesas Electronics America) 0.0000
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0.00000000 Surface Mount Bulk 14 EAR99 70°C 0°C 5mm RoHS Compliant Contains Lead TSSOP 2-Wire, I2C, Serial 4.4mm CMOS 1.2mm 8542.39.00.01 e0 Tin/Lead (Sn/Pb) DUAL 5V 14 COMMERCIAL 0.65mm R-PDSO-G14 2.7V Timer or RTC Not Qualified 3/5V 5.5V HH:MM:SS (12/24 hr) TIMER, REAL TIME CLOCK 0.032MHz SECONDS Y YES I2C 1 YY-MM-DD-dd
MCP7940N-I/P MCP7940N-I/P Microchip Technology 0.0000
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0.00000000 download 2 Weeks Through Hole Tube 2010 Automotive, AEC-Q100 Active 1 (Unlimited) 8 EAR99 10.16mm ROHS3 Compliant Lead Free 8 8-DIP (0.300, 7.62mm) I2C, 2-Wire Serial No SVHC 4.95mm 7.11mm Through Hole 930.006106mg -40°C~85°C CMOS Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL NOT APPLICABLE 2.5V NOT APPLICABLE MCP7940N 2.54mm Timer or RTC Not Qualified 2/5V Alarm, Leap Year, Square Wave Output, SRAM Clock TS 16949 64B 1.8V~5.5V HH:MM:SS (12/24 hr) SECONDS Y NO I2C 1 YY-MM-DD-dd 1.2μA @ 3.3V 1.3V~5.5V
RX-8035SA:B PURE SN R RX-8035SA:B PURE SN R EPSON 0.0000
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0.00000000 download 13 Weeks Tape & Reel (TR) RX-8035SA Active 1 (Unlimited) ROHS3 Compliant 14-SOIC (0.197, 5.00mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Time Event Recorder Alarm 2.4V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 2.5μA @ 3V 1V~5.5V
ISL12029IVZ ISL12029IVZ Renesas Electronics America 0.0000
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0.00000000 download Tube Obsolete 1 (Unlimited) ROHS3 Compliant 14-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar ISL12029 Alarm, Leap Year, Supervisor, Watchdog Timer 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
ISL12029IBAZ-T ISL12029IBAZ-T Renesas Electronics America 0.0000
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0.00000000 download Tape & Reel (TR) Obsolete 2 (1 Year) ROHS3 Compliant 14-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar ISL12029 Alarm, Leap Year, Supervisor, Watchdog Timer 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
DS1315N-5+ DS1315N-5+ Maxim Integrated 0.0000
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0.00000000 download 10 Weeks Tube 2011 yes Active 1 (Unlimited) 16 EAR99 19.175mm ROHS3 Compliant Lead Free 16-DIP (0.300, 7.62mm) Parallel 7.62mm Through Hole -40°C~85°C CMOS 4.572mm 8542.39.00.01 Phantom Time Chip e3 Matte Tin (Sn) DUAL 260 5V 30 DS1315 16 NO 2.54mm R-PDIP-T16 Timer or RTC Not Qualified 5V Leap Year 4.5V~5.5V HH:MM:SS:hh (12/24 hr) 0.032MHz 1/100SECOND N YES SERIAL, FIXED PROTOCOL YY-MM-DD-dd 1.3mA @ 5V 2.5V~3.7V
X1227S8ZT1 X1227S8ZT1 Renesas Electronics America 0.0000
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0.00000000 download Tape & Reel (TR) Obsolete 1 (Unlimited) ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount 0°C~70°C Clock/Calendar X1227 Alarm, Leap Year, Supervisor, Watchdog Timer 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5V 1.8V~5.5V
ISL12027IB27AZ-T ISL12027IB27AZ-T Intersil (Renesas Electronics America) 0.0000
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0.00000000 download Surface Mount Tape & Reel 1999 Active 1 8 EAR99 85°C -40°C 3.3V 4.9mm RoHS Compliant No SOIC 2-Wire, I2C, Serial 5.5V 2.7V 3.9mm CMOS 1.75mm 8542.39.00.01 e3 Matte Tin (Sn) - annealed DUAL 260 3.3V 40 8, 8 INDUSTRIAL 1.27mm R-PDSO-G8 Timer or RTC 3/5V Clock HH:MM:SS 0.032MHz SECONDS Y NO I2C YY-MM-DD-dd
ISL12029IV27AZ-T ISL12029IV27AZ-T Renesas Electronics America 0.0000
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0.00000000 download Tape & Reel (TR) Obsolete 1 (Unlimited) ROHS3 Compliant 14-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar ISL12029 Alarm, Leap Year, Supervisor, Watchdog Timer 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
M48T35AV-10MH1E M48T35AV-10MH1E STMicroelectronics 0.0000
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0.00000000 download Surface Mount Tube Timekeeper® Obsolete 3 (168 Hours) 28 SMD/SMT EAR99 3.3V 18.49mm ROHS3 Compliant Lead Free 28 28-SOP (0.350, 8.89mm Width) with SNAPHAT Sockets Parallel No SVHC 256 kb 32.768kHz 2.69mm 8.89mm Surface Mount 0°C~70°C CMOS 8542.39.00.01 30mA Clock/Calendar e3 Matte Tin (Sn) DUAL 260 3.3V 30 M48T35 28 1.27mm Timer or RTC Not Qualified Leap Year 100 ns 32kB 3V~3.6V HH:MM:SS (24 hr) 8b 8b SECONDS N NO YY-MM-DD-dd 2mA @ 3V~3.6V
RTC-72421B: ROHS RTC-72421B: ROHS EPSON 0.0000
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0.00000000 download Tube RTC-72421 Not For New Designs 1 (Unlimited) ROHS3 Compliant 18-DIP (0.300, 7.62mm) Parallel Through Hole -10°C~70°C Clock/Calendar Leap Year 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 5μA~10μA @ 2V~5V
DS1307Z+T&R DS1307Z+T&R Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2005 Active 1 (Unlimited) 70°C 0°C 5V 5mm ROHS3 Compliant Lead Free Tin No 8 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 5.5V No SVHC 4.5V 1.5mm 4mm Surface Mount 0°C~70°C Clock/Calendar DS1307 Leap Year, NVSRAM, Square Wave Output 8-SOIC Clock 56B 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 200μA @ 5V 2V~3.5V
X1227S8IZ-2.7A X1227S8IZ-2.7A Intersil (Renesas Electronics America) 0.0000
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0.00000000 Surface Mount Bulk 1 8 EAR99 85°C -40°C 4.9022mm RoHS Compliant Lead Free SOIC 2-Wire, I2C, Serial 3.9116mm CMOS 1.7272mm 8542.39.00.01 e3 MATTE TIN DUAL 260 5V 40 8 INDUSTRIAL 1.27mm R-PDSO-G8 2.7V Timer or RTC Not Qualified 3/5V 5.5V 512B HH:MM:SS (12/24 hr) TIMER, REAL TIME CLOCK 0.032MHz SECONDS Y NO I2C 1 YY-MM-DD-dd
ISL12024IBZ ISL12024IBZ Intersil (Renesas Electronics America) 0.0000
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0.00000000 download 6 Weeks Surface Mount 1999 Active 1 8 SMD/SMT EAR99 85°C -40°C 3.3V 5mm RoHS Compliant No 8 SOIC 2-Wire, I2C, Serial 5.5V No SVHC 2.7V 400kHz 1.5mm 4mm CMOS e3 Matte Tin (Sn) - annealed DUAL 260 3.3V 30 INDUSTRIAL Timer or RTC 3/5V 1 Clock 512B EEPROM HH:MM:SS SECONDS Y NO I2C YY-MM-DD-dd
1339-31DCGI8 1339-31DCGI8 Renesas Electronics America 0.0000
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0.00000000 download 12 Weeks Tape & Reel (TR) Active 1 (Unlimited) ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar IDT1339 Alarm, Leap Year, Square Wave Output, Trickle-Charger 8-SOIC 3.3V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 200μA @ 3.63V~5.5V 1.3V~3.7V
ISL12026IBZ-T ISL12026IBZ-T Intersil (Renesas Electronics America) 0.0000
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0.00000000 download 11 Weeks Surface Mount Tape & Reel (TR) 1999 Active 1 (Unlimited) 8 EAR99 85°C -40°C 3.3V 4.9mm RoHS Compliant Lead Free No 8 SOIC 2-Wire, I2C, Serial 5.5V 2.7V 3.9mm CMOS 1.75mm e3 Matte Tin (Sn) - annealed DUAL 260 3.3V 30 INDUSTRIAL 1.27mm Timer or RTC 3/5V Clock 512B HH:MM:SS 0.032MHz SECONDS Y I2C 16 B YY-MM-DD-dd
DS1306E DS1306E Maxim Integrated 0.0000
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0.00000000 download Tube 2002 no Obsolete 1 (Unlimited) 20 EAR99 6.5mm Non-RoHS Compliant Contains Lead 20-TSSOP (0.173, 4.40mm Width) SPI not_compliant 4.4mm Surface Mount 0°C~70°C CMOS 1.1mm 8473.30.11.80 Clock/Calendar e0 Tin/Lead (Sn/Pb) DUAL 240 5V 20 DS1306 20 YES 0.65mm R-PDSO-G20 Timer or RTC Not Qualified 3/5V Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger 96B 2V~5.5V HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y YES SERIAL, 3-WIRE YY-MM-DD-dd 25.3μA~81μA @ 2V~5V 2V~5.5V
1338-31DCGI8 1338-31DCGI8 Renesas Electronics America 0.0000
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0.00000000 download 12 Weeks Tape & Reel (TR) Active 1 (Unlimited) ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar IDT1338 Leap Year, NVSRAM, Square Wave Output 56B 3.3V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 5μA @ 3.63V~5.5V 1.3V~3.7V
BQ3285LDSSTR BQ3285LDSSTR Texas Instruments 0.0000
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0.00000000 download Surface Mount Tape & Reel (TR) Obsolete 2 (1 Year) 24 EAR99 3V 8.65mm ROHS3 Compliant Lead Free Gold No 24 24-SSOP (0.154, 3.90mm Width) Parallel 3.9mm Surface Mount 129.500622mg 0°C~70°C CMOS 1.73mm 8542.39.00.01 Clock/Calendar e4 DUAL 260 3V BQ3285 24 0.635mm Timer or RTC 3V Alarm, Daylight Savings, NVSRAM Clock 242B 2.7V~5.5V HH:MM:SS (12/24 hr) 8 0.032MHz SECONDS Y NO YY-MM-DD-dd 100μA @ 3V 2.4V~4V
RV-8803-C7-32.768K-3PPM-TA-QA RV-8803-C7-32.768K-3PPM-TA-QA Micro Crystal 0.0000
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0.00000000
M41ST84YMQ6E M41ST84YMQ6E STMicroelectronics 0.0000
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0.00000000 download Surface Mount Tube Obsolete 1 (Unlimited) 16 EAR99 9.9mm ROHS3 Compliant 16-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 3.9mm Surface Mount -40°C~85°C CMOS 1.75mm 8542.39.00.01 Clock/Calendar e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL 260 5V 30 M41ST 16 1.27mm R-PDSO-G16 Timer or RTC Not Qualified 5V Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B 4.5V~5.5V HH:MM:SS:hh (24 hr) 0.032MHz 1/100SECOND Y YES I2C 1 YY-MM-DD-dd 1mA @ 4.5V~5.5V 2.5V~3.5V
RTC-72423B3:PURE SN RTC-72423B3:PURE SN EPSON 0.0000
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0.00000000 download 16 Weeks Tape & Reel (TR) RTC-72423 Active 1 (Unlimited) ROHS3 Compliant 24-SOIC (0.311, 7.90mm Width) Parallel Surface Mount -40°C~85°C Clock/Calendar Leap Year 24-SOP 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 5μA~10μA @ 2V~5V
X1227V8IZ-4.5A X1227V8IZ-4.5A Renesas Electronics America 0.0000
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0.00000000 download Tube Obsolete 1 (Unlimited) ROHS3 Compliant 8-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar X1227 Alarm, Leap Year, Supervisor, Watchdog Timer 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5V 1.8V~5.5V
ISL1209IU10Z-TK ISL1209IU10Z-TK Intersil (Renesas Electronics America) 0.0000
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0.00000000 download 14 Weeks Surface Mount Cut Tape (CT) 2004 Active 2 8 EAR99 85°C -40°C 3mm RoHS Compliant Lead Free No 10 MSOP 2-Wire, I2C, Serial 5.5V 2.7V 3mm CMOS 1.1mm 8542.39.00.01 e3 Matte Tin (Sn) - annealed DUAL 260 3V 40 10 INDUSTRIAL 0.65mm S-PDSO-G8 Clock 2B HH:MM:SS 0.032MHz I2C 2 B YY-MM-DD-dd
1338AC-18SRGI8 1338AC-18SRGI8 Integrated Device Technology (IDT) 0.0000
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0.00000000 download 7 Weeks Surface Mount Tape & Reel (TR) 2006 yes Active 3 (168 Hours) 16 EAR99 85°C -40°C 1.8V 10.4mm RoHS Compliant Lead Free Tin 16 SOIC 2-Wire, I2C, Serial 2.34mm 7.6mm 2.34mm CMOS 8542.39.00.01 e3 DUAL 260 3.3V NOT SPECIFIED 16 INDUSTRIAL 1.27mm Timer or RTC Not Qualified 1.5/5V 5.5V Clock 56B HH:MM:SS (12/24 hr) 0.032MHz SECONDS N NO I2C 1 YY-MM-DD-dd
DS1744-70IND DS1744-70IND Maxim Integrated 0.0000
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0.00000000 download Through Hole Tube 2006 Obsolete 1 (Unlimited) 28 EAR99 5V 39.37mm Non-RoHS Compliant Contains Lead No 28 28-DIP Module (0.600, 15.24mm) Parallel Unknown 10.67mm 18.8mm Through Hole -40°C~85°C CMOS 8542.39.00.01 Clock/Calendar e0 Tin/Lead (Sn/Pb) DUAL 240 5V DS1744 28 2.54mm Timer or RTC 5V Leap Year, NVSRAM, Y2K Clock 32KB 4.5V~5.5V HH:MM:SS (24 hr) 0.032MHz SECONDS N NO YY-MM-DD-dd 4mA @ 5V
MAX6916EO30+ MAX6916EO30+ Maxim Integrated 0.0000
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0.00000000 download Tube 2013 yes Obsolete 1 (Unlimited) 20 EAR99 85°C -40°C 8.65mm ROHS3 Compliant Lead Free 20-SSOP (0.154, 3.90mm Width) SPI, 3-Wire Serial 3.9mm Surface Mount CMOS 1.73mm 8473.30.11.80 Clock/Calendar/Supervisor e3 Matte Tin (Sn) DUAL 260 3V 30 MAX6916 20 INDUSTRIAL YES 0.635mm R-PDSO-G20 Timer or RTC Not Qualified 3V Clock 96B 8 3V HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y NO I2C YY-MM-DD-dd
M48T37V-10MH6F M48T37V-10MH6F STMicroelectronics 0.0000
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0.00000000 download Surface Mount Tape & Reel (TR) Timekeeper® Obsolete 1 (Unlimited) 44 EAR99 3.3V 18.1mm ROHS3 Compliant Lead Free 44 44-BSOP (0.337, 8.56mm Width) requires SNAPHAT Parallel 100GHz 8.56mm Surface Mount -40°C~85°C CMOS 3.05mm 8542.39.00.01 Clock/Calendar DUAL 260 3.3V 10 M48T37 44 0.81mm Timer or RTC Not Qualified Alarm, Leap Year, Watchdog Timer Clock 100 ns 250kB 8 3V~3.6V HH:MM:SS (24 hr) 8 SECONDS Y NO YY-MM-DD-dd 2mA @ 3V~3.6V
M48T37Y-70MH1F M48T37Y-70MH1F STMicroelectronics 0.0000
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0.00000000 download 26 Weeks Surface Mount Tape & Reel (TR) Timekeeper® Active 3 (168 Hours) 44 EAR99 5V 18.1mm ROHS3 Compliant Lead Free No 44 44-BSOP (0.337, 8.56mm Width) requires SNAPHAT Parallel 70GHz 8.56mm Surface Mount 0°C~70°C CMOS 3.05mm 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 245 5V 30 M48T37 44 0.81mm Timer or RTC 5V Alarm, Leap Year, Watchdog Timer Clock 70 ns 250kB 8 4.5V~5.5V HH:MM:SS (24 hr) 8 SECONDS Y NO YY-MM-DD-dd 3mA @ 4.5V~5.5V
DS3231S# DS3231S# Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Surface Mount Tube 2001 yes Active 1 (Unlimited) 16 EAR99 3.3V 10.5mm ROHS3 Compliant No 16 16-SOIC (0.295, 7.50mm Width) I2C, 2-Wire Serial Unknown 2.35mm 7.6mm Surface Mount 0°C~70°C CMOS 8542.39.00.01 Clock/Calendar e3 Tin (Sn) DUAL 260 3.3V 30 DS3231 16 1.27mm Timer or RTC Alarm, Leap Year, Square Wave Output, TCXO/Crystal Clock 2.3V~5.5V HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y NO I2C 1 YY-MM-DD-dd 110μA~170μA @ 3.63V~5.5V 2.3V~5.5V
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