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RTCs

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 Interface Max Supply Voltage REACH SVHC Reach Compliance Code Min Supply Voltage Density Frequency Height Width Mounting Type Operating Temperature Technology Height Seated (Max) HTS Code Nominal Supply Current Type 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) Operating Temperature (Max) Operating Temperature (Min) Subcategory Qualification Status Power Supplies Supply Voltage-Max (Vsup) Number of Outputs Feature Supplier Device Package Logic Function Access Time Screening Level Memory Size Number of Bits Voltage - Supply Time Format External Data Bus Width uPs/uCs/Peripheral ICs Type Clock Frequency Time-Min Interrupt Capability Volatile Information Access Method Number of Timers Date Format Current - Timekeeping (Max) Voltage - Supply, Battery
RTC-8564NB:B3:ROHS RTC-8564NB:B3:ROHS EPSON 0.0000
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0.00000000 Surface Mount Digi-Reel® 85°C -40°C RoHS Compliant Contains Lead 22 2-Wire, I2C, Serial 5.5V 1.8V Clock HH:MM:SS YY-MM-DD-dd
CBC34123-M5C-TR1 CBC34123-M5C-TR1 Cymbet 0.0000
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0.00000000 Surface Mount Tape & Reel (TR) 70°C -20°C RoHS Compliant Lead Free 16 QFN SPI unknown HH:MM:SS (12/24 hr) YY-MM-DD-dd
MCP79411T-I/ST MCP79411T-I/ST Microchip Technology 0.0000
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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2011 Active 1 (Unlimited) 8 EAR99 4.4mm ROHS3 Compliant No 8 8-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial 3mm Surface Mount -40°C~85°C CMOS 1.2mm Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 260 5V 40 MCP79411 8 0.65mm Timers or RTCs 2/5V Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Clock 64B 1Kb 1.8V~5.5V HH:MM:SS (12/24 hr) 0.4MHz SECONDS Y NO I2C YY-MM-DD-dd 1.2μA @ 3.3V 1.3V~5.5V
RX-4581NB:B3 ROHS RX-4581NB:B3 ROHS EPSON 0.0000
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0.00000000 download 13 Weeks Tape & Reel (TR) RX-4581NB Active 1 (Unlimited) ROHS3 Compliant 22-SMD, 20 Leads, Flat Leads SPI Surface Mount -40°C~85°C Clock/Calendar Alarm, Leap Year, SRAM 22-SON 16B 1.6V~5.5V HH:MM:SS (24 hr) YY-MM-DD-dd 0.8μA~1.2μA @ 3V~5V
MCP795B12T-I/ST MCP795B12T-I/ST Microchip Technology 0.0000
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0.00000000 download Tape & Reel (TR) 2011 Obsolete 1 (Unlimited) 14 EAR99 5mm ROHS3 Compliant ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ 14-TSSOP (0.173, 4.40mm Width) SPI 4.4mm Surface Mount -40°C~85°C CMOS 1.2mm 8542.39.00.01 Clock/Calendar e3 MATTE TIN (SN) DUAL 5V MCP795B12 14 YES 0.65mm R-PDSO-G14 Timer or RTC Not Qualified 2/5V Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer 64B 8 1.8V~5.5V HH:MM:SS:hh (12/24 hr) 10MHz 1/100SECOND Y NO YY-MM-DD-dd 1μA @ 1.8V~5.5V 1.3V~5.5V
MCP795W10T-I/ST MCP795W10T-I/ST Microchip Technology 0.0000
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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2011 Active 1 (Unlimited) 14 EAR99 5mm ROHS3 Compliant Lead Free No 14 ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ 14-TSSOP (0.173, 4.40mm Width) SPI 4.4mm Surface Mount -40°C~85°C CMOS 1.2mm 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 260 5V 40 MCP795W10 14 0.65mm Timer or RTC 2/5V Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer Clock 64B 8 1.8V~3.6V HH:MM:SS:hh (12/24 hr) 10MHz 1/100SECOND Y NO YY-MM-DD-dd 1μA @ 1.8V~5.5V 1.3V~3.6V
DS1742-85+ DS1742-85+ Rochester Electronics 0.0000
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0.00000000 download Obsolete 3 (168 Hours) ROHS3 Compliant
X1228V14Z-4.5A X1228V14Z-4.5A Renesas Electronics America 0.0000
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Min: 1

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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 e3 MATTE TIN NOT SPECIFIED NOT SPECIFIED X1228 Alarm, Leap Year, Supervisor, Watchdog Timer 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5V 1.8V~5.5V
M41T00SC64MY6F M41T00SC64MY6F STMicroelectronics 0.0000
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0.00000000 download Surface Mount Tape & Reel (TR) Obsolete 1 (Unlimited) 18 EAR99 5V 11.6mm ROHS3 Compliant No 18 18-SOX, 18-SOIC with Crystal (7.5mm Width) I2C, 2-Wire Serial 64 kb 400kHz 7.62mm Surface Mount -40°C~85°C CMOS 2.69mm 8542.39.00.01 2mA Clock/Calendar DUAL 3V M41T00 18 1.27mm Timer or RTC EEPROM, Leap Year 900 ns 8KB 2.7V~5.5V HH:MM:SS SECONDS N SERIAL, 2-WIRE/I2C YY-MM-DD-dd 100μA Typ @ 2.7V~5.5V 2.5V~35V
MCP7940NT-E/SNVAO MCP7940NT-E/SNVAO Microchip Technology 0.0000
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0.00000000 download Tape & Reel (TR) Automotive, AEC-Q100 Active 3 (168 Hours) 8 4.9mm 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial compliant 3.9mm Surface Mount -40°C~125°C CMOS 1.75mm Clock/Calendar DUAL 2.5V YES 1.27mm R-PDSO-G8 Alarm, Leap Year, Square Wave Output, SRAM AEC-Q100; TS 16949 64B 1.8V~5.5V HH:MM:SS (12/24 hr) I2C 1 YY-MM-DD-dd 1.2μA @ 3.3V 1.3V~5.5V
ISL12057IBZ ISL12057IBZ Intersil 0.0000
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0.00000000
M41T56C64MY6F M41T56C64MY6F STMicroelectronics 0.0000
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Min: 1

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0.00000000 download Surface Mount Tape & Reel (TR) Obsolete 1 (Unlimited) 18 EAR99 5V 11.61mm ROHS3 Compliant Lead Free No 18 18-SOX, 18-SOIC with Crystal (7.5mm Width) I2C, 2-Wire Serial 7.62mm Surface Mount -40°C~85°C CMOS 2.69mm 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) DUAL 240 5V 30 M41T56 18 1.27mm Timer or RTC 5V EEPROM, Leap Year, NVSRAM Clock 56B 8KB 4.5V~5.5V HH:MM:SS 0.032MHz SECONDS N YES I2C YY-MM-DD-dd 100μA Typ @ 4.5V~5.5V 2.5V~3.5V
DS1554-70 DS1554-70 Maxim Integrated 0.0000
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0.00000000 download Tube 2005 Obsolete 1 (Unlimited) 32 EAR99 38.675mm Non-RoHS Compliant Contains Lead IT CAN ALSO OPERATE WITH 5V 32-DIP Module (0.600, 15.24mm) Parallel not_compliant 15.24mm Through Hole 0°C~70°C CMOS 9.27mm 8542.39.00.01 Clock/Calendar e0 Tin/Lead (Sn/Pb) DUAL 240 5V NOT SPECIFIED DS1554 32 NO 2.54mm R-PDIP-P32 Timer or RTC Not Qualified 5V Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 32KB 4.5V~5.5V HH:MM:SS (24 hr) 8 0.032MHz SECONDS Y NO YY-MM-DD-dd 6mA @ 5V
DS17887-5 DS17887-5 Maxim Integrated 0.0000
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0.00000000 download Through Hole Tube 2010 no Obsolete 1 (Unlimited) 24 EAR99 5V 38.1mm Non-RoHS Compliant Contains Lead, Lead Free Tin No 24 24-DIP Module (0.600, 15.24mm) Parallel Unknown 10.67mm 18.29mm Through Hole 0°C~70°C CMOS 8542.39.00.01 Clock/Calendar e0 DUAL 240 5V DS17887 24 2.54mm Timer or RTC 5V Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Clock 8KB 4.5V~5.5V HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y NO 1 YY-MM-DD-dd 3mA @ 4.5V~5.5V 2.5V~3.7V
BQ4845YS-A4NG4 BQ4845YS-A4NG4 Texas Instruments 0.0000
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0.00000000 no 28 EAR99 17.9705mm Non-RoHS Compliant Contains Lead 28 SOIC 7.5565mm CMOS 2.667mm 8542.39.00.01 DUAL GULL WING NOT SPECIFIED 5V NOT SPECIFIED 28 INDUSTRIAL YES 1.27mm 4.5V 85°C -40°C Timer or RTC Not Qualified 5V 5.5V 8 TIMER, REAL TIME CLOCK 0.032MHz SECONDS Y NO PARALLEL, DIRECT ADDRESS 1
DS1747WP-120IND DS1747WP-120IND Maxim Integrated 0.0000
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0.00000000 download Surface Mount Tube 2005 no Obsolete 3 (168 Hours) 34 EAR99 3.3V Non-RoHS Compliant Contains Lead Tin No 34 34-PowerCap™ Module Parallel Surface Mount -40°C~85°C CMOS 8473.30.11.80 Clock/Calendar e0 DUAL 240 3.3V DS1747 34 Timer or RTC Leap Year, NVSRAM, Y2K Clock 512KB 2.97V~3.63V HH:MM:SS (24 hr) 8 0.032MHz SECONDS N NO YY-MM-DD-dd 2mA @ 3.3V 3V
DS1557WP-120IND+ DS1557WP-120IND+ Maxim Integrated 0.0000
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0.00000000 download 10 Weeks Surface Mount Tray 2003 yes Active 3 (168 Hours) 34 EAR99 3.3V ROHS3 Compliant Lead Free No 34 34-PowerCap™ Module Parallel Surface Mount -40°C~85°C CMOS 8473.30.11.80 Clock/Calendar e3 Matte Tin (Sn) DUAL 3.3V DS1557 34 Timer or RTC Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Clock 512KB 2.97V~3.63V HH:MM:SS (24 hr) 8 0.032MHz SECONDS Y NO YY-MM-DD-dd 4mA @ 3.3V 3V
DS12C887A+ DS12C887A+ Maxim Integrated 0.0000
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0.00000000 download 11 Weeks Tube 2000 yes Active 1 (Unlimited) 24 EAR99 ROHS3 Compliant Lead Free 24 24-DIP Module (0.600, 15.24mm) Parallel not_compliant Through Hole 0°C~70°C CMOS Clock/Calendar e3 Matte Tin (Sn) DUAL 260 5V NOT SPECIFIED DS12C887 24 NO 2.54mm Timer or RTC Not Qualified 5V 8 Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 113B 4.5V~5.5V HH:MM:SS (12/24 hr) 8 0.032MHz SECONDS Y NO 1 YY-MM-DD-dd 15mA @ 4.5V~5.5V 2.5V~4V
ISL12025IVZ ISL12025IVZ Rochester Electronics 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 Alarm, Leap Year, Supervisor, Unique ID, Watchdog Timer 8-TSSOP 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
X1228S14I-2.7A X1228S14I-2.7A Intersil (Renesas Electronics America) 0.0000
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0.00000000 Surface Mount Bulk 14 EAR99 85°C -40°C 8.65mm RoHS Compliant Contains Lead SOIC 2-Wire, I2C, Serial 3.9mm CMOS 1.75mm 8542.39.00.01 e0 Tin/Lead (Sn/Pb) DUAL 5V 14 INDUSTRIAL 1.27mm R-PDSO-G14 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 YES I2C 1 YY-MM-DD-dd
ISL12027AIB27Z-T ISL12027AIB27Z-T Intersil 0.0000
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Min: 1

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0.00000000
RTC-58321B RTC-58321B Seiko 0.0000
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0.00000000
RV-3049-C2-32.768KHZ-OPTION-B-TA-QC RV-3049-C2-32.768KHZ-OPTION-B-TA-QC Micro Crystal 0.0000
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0.00000000 download 2 Weeks Tape & Reel (TR) Automotive, AEC-Q200 Active 1 (Unlimited) ROHS3 Compliant 10-TCDFN Exposed Pad SPI, 4-Wire Serial Surface Mount -40°C~85°C TA Clock/Calendar Gold Flash (Au) 260 40 Alarm, NVRAM, RAM, Trickle Charger 2B 8B 1.3V~5.5V HH:MM:SS YY-MM-DD-dd 1μA @ 3V
DS1251WP-C01+ DS1251WP-C01+ Maxim Integrated 0.0000
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0.00000000 download Bulk 2011 Obsolete 1 (Unlimited) ROHS3 Compliant Parallel 0°C~70°C Phantom Time Chip DS1251 Leap Year, NVSRAM 512KB 2.97V~3.63V HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 7mA @ 3.3V 3V
1337DVGI8 1337DVGI8 Renesas Electronics America 0.0000
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0.00000000 download Tape & Reel (TR) Active 3 (168 Hours) ROHS3 Compliant 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar IDT1337 Alarm, Leap Year, Square Wave Output 8-TSSOP 1.8V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.6μA @ 1.3V~1.8V
X1227S8I X1227S8I Intersil 0.0000
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0.00000000
RTC-4543SA:B ROHS RTC-4543SA:B ROHS EPSON 0.0000
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Min: 1

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0.00000000 download RTC-4543SA Obsolete 1 (Unlimited) 14-SOIC (0.197, 5.00mm Width) 3-Wire Serial Surface Mount -40°C~85°C Clock/Calendar Leap Year 14-SOP 2.5V~5.5V HH:MM:SS (24 hr) YY-MM-DD-dd 1μA~3μA @ 2V~5V
MCP79522T-I/MN MCP79522T-I/MN Microchip Technology 0.0000
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0.00000000 download 19 Weeks Surface Mount Tape & Reel (TR) 2012 Active 1 (Unlimited) 10 EAR99 3mm ROHS3 Compliant Lead Free No 10 10-WFDFN Exposed Pad SPI 800μm 3mm Surface Mount -40°C~85°C CMOS 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 3V MCP79522 0.5mm Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID Clock 64B 1.8V~3.6V HH:MM:SS:hh (12/24 hr) 5MHz YY-MM-DD-dd 1μA @ 1.8V~3.6V 1.3V~3.6V
RX-8025NB:AA RX-8025NB:AA EPSON 0.0000
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0.00000000 download 13 Weeks RX-8025NB Active 1 (Unlimited) 85°C -40°C 5.5V 6.3mm ROHS3 Compliant 22-LFDFN I2C, 2-Wire Serial 32.768kHz 1.4mm 5.2mm Surface Mount -40°C~85°C Clock/Calendar Alarm, Leap Year 22-SON (5x6) 1.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.2μA~1.8μA @ 3V~5V
DS1302Z+T&R DS1302Z+T&R Maxim Integrated 0.0000
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Min: 1

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0.00000000 download 6 Weeks Tape & Reel (TR) 2002 Active 1 (Unlimited) ROHS3 Compliant Lead Free 8 8-SOIC (0.154, 3.90mm Width) 3-Wire Serial Surface Mount 0°C~70°C Clock/Calendar DS1302 Leap Year, NVSRAM, Trickle-Charger 8-SOIC 31B 2V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.3μA~1μA @ 2V~5V 2V~5.5V
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