Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Part Status Type Series Mount Mounting Type Operating Temperature Packaging Moisture Sensitivity Level (MSL) Max Operating Temperature Min Operating Temperature Technology Frequency Height Seated (Max) RoHS Status Published Datasheet Package / Case Length Height Width Operating Supply Voltage Lead Free Number of Terminations Factory Lead Time REACH SVHC Max Supply Voltage Min Supply Voltage Number of Pins Interface Pbfree Code ECCN Code Additional Feature Contact Plating Radiation Hardening Reach Compliance Code HTS Code JESD-609 Code Feature Terminal Finish Surface Mount Voltage - Supply Terminal Position Peak Reflow Temperature (Cel) Supply Voltage Terminal Pitch Base Part Number Pin Count Time@Peak Reflow Temperature-Max (s) Subcategory Power Supplies Qualification Status JESD-30 Code Supplier Device Package Memory Size Number of Bits Logic Function Number of Outputs Number of Timers Clock Frequency Time-Min External Data Bus Width Time Format Interrupt Capability Volatile Information Access Method Date Format Current - Timekeeping (Max) Voltage - Supply, Battery
PT7C4302AWEX PT7C4302AWEX Diodes Incorporated
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C TA Tape & Reel (TR) 1 (Unlimited) ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) 20 Weeks 3-Wire Serial Leap Year, NVSRAM, Square Wave Output, Trickle-Charger 1.2V~5.5V 31B HH:MM:SS (12/24 hr) YY-MM-DD-dd 25.3μA~81μA @ 2V~5V 1.2V~5.5V
ISL12024IBZ ISL12024IBZ Renesas Electronics America
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tube 1 (Unlimited) ROHS3 Compliant 1999 /files/renesaselectronicsamericainc-isl12024ibzt-datasheets-8798.pdf 8-SOIC (0.154, 3.90mm Width) 7 Weeks I2C, 2-Wire Serial EAR99 8542.39.00.01 e3 Alarm, Leap Year, Unique ID Matte Tin (Sn) 2.7V~5.5V NOT SPECIFIED ISL12024 8 NOT SPECIFIED HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
PT7C4563BUEX PT7C4563BUEX Diodes Incorporated
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C TA Tape & Reel (TR) 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) 20 Weeks I2C, 2-Wire Serial Alarm, Leap Year, Square Wave Output 1.3V~5.5V HH:MM:SS (24 hr) YY-MM-DD-dd 0.65μA~0.85μA @ 3V~5V
MCP795W21-I/SL MCP795W21-I/SL Microchip Technology
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Tube 1 (Unlimited) CMOS ROHS3 Compliant 2012 /files/microchiptechnology-mcp795w11ist-datasheets-0972.pdf 14-SOIC (0.154, 3.90mm Width) 8.65mm 1.5mm 3.9mm Lead Free 14 5 Weeks 14 SPI EAR99 ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ No 8542.39.00.01 e3 Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer Matte Tin (Sn) - annealed 1.8V~3.6V DUAL 260 5V 1.27mm MCP795W21 14 40 Timer or RTC 2/5V 64B 8 Clock 10MHz 1/100SECOND HH:MM:SS:hh (12/24 hr) Y NO YY-MM-DD-dd 1μA @ 1.8V~5.5V 1.3V~3.6V
DS1315E-5+ DS1315E-5+ Maxim Integrated
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0 0x0x0 download Phantom Time Chip Surface Mount 0°C~70°C Tube 1 (Unlimited) CMOS 1.1mm ROHS3 Compliant 2011 /files/maximintegrated-ds1315s5-datasheets-0352.pdf 20-TSSOP (0.173, 4.40mm Width) 6.5mm 4.4mm Lead Free 20 8 Weeks Parallel yes EAR99 8542.39.00.01 e3 Leap Year Matte Tin (Sn) YES 4.5V~5.5V DUAL 260 5V 0.65mm DS1315 20 30 Timer or RTC 5V Not Qualified R-PDSO-G20 0.032MHz 1/100SECOND HH:MM:SS:hh (12/24 hr) N YES SERIAL, FIXED PROTOCOL YY-MM-DD-dd 1.3mA @ 5V 2.5V~3.7V
AB-RTCMK-32.768KHZ-T3 AB-RTCMK-32.768KHZ-T3 Abracon LLC
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) 85°C -40°C RoHS Compliant /files/abraconllc-abrtcmk32768khzt3-datasheets-1114.pdf 8-SMD Module Lead Free 16 Weeks 5.5V 1.3V 8 I2C, 2-Wire Serial No Alarm, Leap Year, Square Wave Output, TCXO/Crystal 1.3V~5.5V 8-SMT HH:MM:SS (12/24 hr) YY-MM-DD 2μA @ 3V
PT7C4563BLEX PT7C4563BLEX Diodes Incorporated
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C TA Tape & Reel (TR) 8-TSSOP (0.173, 4.40mm Width) 20 Weeks I2C, 2-Wire Serial Alarm, Leap Year, Square Wave Output 1.3V~5.5V HH:MM:SS (24 hr) YY-MM-DD-dd 0.65μA~0.85μA @ 3V~5V
DS12885T+ DS12885T+ Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount 0°C~70°C Tray 1 (Unlimited) CMOS 1.2mm ROHS3 Compliant 2003 /files/maximintegrated-ds12885s-datasheets-1555.pdf 32-TQFP 7mm 7mm Lead Free 32 6 Weeks Parallel yes EAR99 DAYLIGHT SAVINGS OPTION; SELECTABLE MOTOROLA/INTEL TIMING 8473.30.11.80 e3 Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output MATTE TIN YES 4.5V~5.5V QUAD 260 5V 0.8mm DS12885 32 30 Timer or RTC 5V Not Qualified S-PQFP-G32 114B 1 0.032MHz SECONDS 8 HH:MM:SS (12/24 hr) Y YES YY-MM-DD-dd 15mA @ 4.5V~5.5V 2.5V~4V
PT7C4563BZEEX PT7C4563BZEEX Diodes Incorporated
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C TA Tape & Reel (TR) 8-WFDFN Exposed Pad 20 Weeks I2C, 2-Wire Serial Alarm, Leap Year, Square Wave Output 1.3V~5.5V HH:MM:SS (24 hr) YY-MM-DD-dd 0.65μA~0.85μA @ 3V~5V
NJU6355ED NJU6355ED NJR Corporation/NJRC
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0 0x0x0 download Clock/Calendar Through Hole -30°C~80°C Tube 1 (Unlimited) RoHS Compliant 2005 /files/njrcorporationnjrc-nju6355em-datasheets-1321.pdf 8-DIP (0.300, 7.62mm) 12 Weeks 4-Wire Serial Leap Year 4.5V~5.5V 8-DIP HH:MM:SS (24 hr) YY-MM-DD-dd 4μA~15μA @ 2V~5V
PT7C4337BUEX PT7C4337BUEX Diodes Incorporated
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C TA Tape & Reel (TR) 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) 20 Weeks I2C, 2-Wire Serial Alarm, Leap Year, Square Wave Output 1.8V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.8μA @ 1.2V~1.8V
R2223T-E2-F R2223T-E2-F Ricoh Electronic Devices Company
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0 0x0x0 download Tape & Reel (TR) 1 (Unlimited) RoHS Compliant /files/ricohelectronicdevicescoltd-r2221te2f-datasheets-2089.pdf Lead Free 9 Weeks Clock
PT7C4563WEX PT7C4563WEX Diodes Incorporated
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C TA Tape & Reel (TR) 1 (Unlimited) CMOS 1.75mm ROHS3 Compliant /files/diodesincorporated-pt7c4563wex-datasheets-1504.pdf 8-SOIC (0.154, 3.90mm Width) 4.9mm 3.9mm 8 25 Weeks I2C, 2-Wire Serial EAR99 8542.39.00.01 Alarm, Leap Year, Square Wave Output YES 1.3V~5.5V DUAL 3V 1.27mm Timer or RTC 1.5/5V Not Qualified R-PDSO-G8 1 SECONDS HH:MM:SS (24 hr) Y YES I2C YY-MM-DD-dd 0.65μA~0.85μA @ 3V~5V
PT7C4563BWEX PT7C4563BWEX Diodes Incorporated
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C TA Tape & Reel (TR) 8-SOIC (0.154, 3.90mm Width) 20 Weeks I2C, 2-Wire Serial Alarm, Leap Year, Square Wave Output 1.3V~5.5V HH:MM:SS (24 hr) YY-MM-DD-dd 0.65μA~0.85μA @ 3V~5V
MCP79412-I/ST MCP79412-I/ST Microchip Technology
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Tube 1 (Unlimited) CMOS 1.2mm ROHS3 Compliant 2011 /files/microchiptechnology-mcp79411ims-datasheets-8237.pdf 8-TSSOP (0.173, 4.40mm Width) 4.4mm 3mm 8 6 Weeks 8 I2C, 2-Wire Serial EAR99 No e3 Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Matte Tin (Sn) - annealed 1.8V~5.5V DUAL 260 5V 0.65mm MCP79412 8 40 Timers or RTCs 2/5V 64B 1Kb Clock 0.4MHz SECONDS HH:MM:SS (12/24 hr) Y NO I2C YY-MM-DD-dd 1.2μA @ 3.3V 1.3V~5.5V
R2051L02-E2 R2051L02-E2 Ricoh Electronic Devices Company
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0 0x0x0 download Tape & Reel (TR) 1 (Unlimited) RoHS Compliant /files/ricohelectronicdevicescoltd-r2051s01e2f-datasheets-2199.pdf 9 Weeks
RX-8581SA:B3:PURE SN RX-8581SA:B3:PURE SN EPSON
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0 0x0x0 download Clock/Calendar RX-8581SA Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) ROHS3 Compliant /files/epson-rx8581sab0-datasheets-2592.pdf 14-SOIC (0.197, 5.00mm Width) 13 Weeks I2C Alarm 1.8V~5.5V 14-SOP 800nA~1.2μA @ 3V~5V
PT7C4337UEX PT7C4337UEX Diodes Incorporated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) CMOS 1.1mm ROHS3 Compliant 2007 /files/diodesincorporated-pt7c4337le-datasheets-2560.pdf 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) 3mm 3mm 8 21 Weeks I2C, 2-Wire Serial EAR99 No 8542.39.00.01 Alarm, Leap Year, Square Wave Output 1.8V~5.5V DUAL 3.3V 0.65mm Timer or RTC 2/5V S-PDSO-G8 Clock 1 0.032MHz SECONDS HH:MM:SS (12/24 hr) Y YES I2C YY-MM-DD-dd 0.8μA @ 1.3V~1.8V
PT7C4337ZEEX PT7C4337ZEEX Diodes Incorporated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) CMOS 0.8mm ROHS3 Compliant 2012 /files/diodesincorporated-pt7c4337le-datasheets-2560.pdf 8-WFDFN Exposed Pad 3mm 2mm 8 25 Weeks I2C, 2-Wire Serial EAR99 8542.39.00.01 Alarm, Leap Year, Square Wave Output 1.8V~5.5V DUAL 3.3V 0.5mm Timer or RTC 2/5V Not Qualified R-PDSO-N8 1 0.032MHz SECONDS HH:MM:SS (12/24 hr) Y YES I2C YY-MM-DD-dd 0.8μA @ 1.3V~1.8V
PT7C4302AZEEX PT7C4302AZEEX Diodes Incorporated
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C TA Tape & Reel (TR) 1 (Unlimited) ROHS3 Compliant 8-WFDFN Exposed Pad 20 Weeks 3-Wire Serial Leap Year, NVSRAM, Square Wave Output, Trickle-Charger 1.2V~5.5V 31B HH:MM:SS (12/24 hr) YY-MM-DD-dd 25.3μA~81μA @ 2V~5V 1.2V~5.5V
RX-4574LC:B3 PURE SN RX-4574LC:B3 PURE SN EPSON
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0 0x0x0 download Clock/Calendar RX-4581NB Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) ROHS3 Compliant /files/epson-rx4574lcb3puresn-datasheets-1139.pdf 12-TFSOJ (0.094, 2.40mm Width) 15 Weeks 3-Wire Serial Alarm, Leap Year 1.6V~5.5V 12-VSOJ HH:MM:SS (24 hr) YY-MM-DD-dd 0.7μA~0.9μA @ 3V~5V
DS1554W-120+ DS1554W-120+ Maxim Integrated
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0 0x0x0 download Clock/Calendar Through Hole 0°C~70°C Tube 1 (Unlimited) CMOS 10.922mm ROHS3 Compliant 2010 /files/maximintegrated-ds155470-datasheets-0090.pdf 32-DIP Module (0.600, 15.24mm) 43.053mm 15.24mm Lead Free 32 9 Weeks Parallel yes EAR99 not_compliant 8473.30.11.80 e3 Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Matte Tin (Sn) NO 2.97V~3.63V DUAL NOT SPECIFIED 3.3V 2.54mm DS1554 32 NOT SPECIFIED Timer or RTC 3.3V Not Qualified R-PDIP-T32 32KB 0.032MHz SECONDS 8 HH:MM:SS (24 hr) Y NO YY-MM-DD-dd 4mA @ 3.3V
DS1344D-33+T&R DS1344D-33+T&R Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Digi-Reel® 1 (Unlimited) 85°C -40°C ROHS3 Compliant 2002 /files/maximintegrated-ds1343e33-datasheets-1206.pdf 14-WFDFN Exposed Pad 3.3V 6 Weeks Unknown 5.5V 3V 14 SPI No Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger 3V~5.5V DS1344 14-TDFN-EP (3x3) 96B Clock HH:MM:SS (12/24 hr) YY-MM-DD-dd 120μA~160μA @ 3.63V~5.5V 1.3V~5.5V
DS1339C-33#T&R DS1339C-33#T&R Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) 85°C -40°C ROHS3 Compliant 2002 /files/maximintegrated-ds1339u33tr-datasheets-8726.pdf 16-SOIC (0.295, 7.50mm Width) 3.3V 6 Weeks 5.5V 2.97V 16 I2C, 2-Wire Serial No Alarm, Leap Year, Square Wave Output, Trickle-Charger 2.97V~5.5V DS1339 16-SOIC Clock HH:MM:SS (12/24 hr) YY-MM-DD-dd 200μA @ 5.5V 1.3V~3.7V
RX-8571LC:B3 PURE SN RX-8571LC:B3 PURE SN EPSON
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0 0x0x0 download Clock/Calendar RX-8571LC Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) ROHS3 Compliant /files/epson-rx8571lcb3puresn-datasheets-1252.pdf 12-TFSOJ (0.094, 2.40mm Width) 15 Weeks I2C, 2-Wire Serial Alarm, Leap Year, RAM 1.6V~5.5V 12-VSOJ 16B HH:MM:SS (24 hr) YY-MM-DD-dd 0.55μA~0.6μA @ 3V~5V
DS1338U-33+ DS1338U-33+ Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Tube 1 (Unlimited) CMOS 32.8kHz ROHS3 Compliant 2006 /files/maximintegrated-ds1338z33tr-datasheets-8198.pdf 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) 3.1mm 950μm 3.1mm 3.3V Lead Free 8 6 Weeks Unknown 8 I2C, 2-Wire Serial yes EAR99 Tin No e3 Leap Year, NVSRAM, Square Wave Output 3V~5.5V DUAL 260 3.3V 0.65mm DS1338 8 30 Timer or RTC 56B Clock 1 1 SECONDS HH:MM:SS (12/24 hr) N NO I2C YY-MM-DD-dd 125μA~200μA @ 3.63V~5.5V 1.3V~3.7V
R2025S-E2-FE R2025S-E2-FE RICOH Electronic Devices Co., LTD. $4.55
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Cut Tape (CT) 1 (Unlimited) RoHS Compliant 14-SOIC (0.197, 5.00mm Width) 9 Weeks I2C, 2-Wire Serial Alarm, Leap Year 1.7V~5.5V 14-SOP HH:MM:SS (12/24 hr) YY-MM-DD-dd 120μA~1.8μA @ 3V~5V
DS1391U-18+ DS1391U-18+ Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Tube 1 (Unlimited) CMOS 1.1mm ROHS3 Compliant 2002 /files/maximintegrated-ds1390u33tr-datasheets-8384.pdf 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) 3mm 3mm 1.8V Lead Free 10 6 Weeks 10 SPI yes EAR99 No 8542.39.00.01 e3 Alarm, Leap Year, Square Wave Output, Trickle-Charger Matte Tin (Sn) 1.71V~1.89V DUAL 260 1.8V 0.5mm DS1391 10 30 Timers or RTCs Clock 1 0.032MHz HH:MM:SS:hh (12/24 hr) Y NO SERIAL, 3-WIRE YY-MM-DD-dd 100μA @ 1.71V~1.89V 1.3V~3.7V
RV-2123-C2-32.768KHZ-20PPM-TA-QC RV-2123-C2-32.768KHZ-20PPM-TA-QC Micro Crystal
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0 0x0x0 download Clock/Calendar Automotive, AEC-Q200 Surface Mount -40°C~85°C TA Tape & Reel (TR) 1 (Unlimited) ROHS3 Compliant /files/microcrystalag-rv2123c232768khz20ppmtaqc-datasheets-0797.pdf 10-TCDFN Exposed Pad 2 Weeks SPI, 4-Wire Serial Alarm, Leap Year Gold Flash (Au) 1.1V~5.5V 260 40 HH:MM:SS YY-MM-DD-dd 180nA @ 3V
DS1392U-33+ DS1392U-33+ Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Tube 1 (Unlimited) CMOS 1.1mm ROHS3 Compliant 2002 /files/maximintegrated-ds1390u33tr-datasheets-8384.pdf 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) 3mm 3mm 3.3V Lead Free 10 6 Weeks Unknown 10 3-Wire Serial yes EAR99 No 8542.39.00.01 e3 Alarm, Leap Year, Square Wave Output, Trickle-Charger Tin (Sn) 2.97V~5.5V DUAL 260 3.3V 0.5mm DS1392 10 30 Timers or RTCs Clock 1 0.032MHz HH:MM:SS:hh (12/24 hr) Y NO SERIAL, 2-WIRE/I2C YY-MM-DD-dd 175μA @ 2.97V~5.5V 1.3V~5.5V

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