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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 Height Width Mounting Type Weight Operating Temperature Technology Height Seated (Max) Manufacturer Package Identifier HTS Code 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) Feature Supplier Device Package Logic Function Screening Level Memory Size Function RAM Size 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
IDT1339C-31SRI IDT1339C-31SRI Integrated Device Technology (IDT) 0.0000
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0.00000000 Surface Mount 85°C -40°C Non-RoHS Compliant 16 SOIC 2-Wire, I2C, Serial HH:MM:SS (12/24 hr) YY-MM-DD-dd
X1227S8I-2.7AT1 X1227S8I-2.7AT1 Renesas Electronics America 0.0000
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0.00000000 download Tape & Reel (TR) Obsolete 1 (Unlimited) Non-RoHS Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar X1227 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
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
BQ4845S-A4NG4 BQ4845S-A4NG4 Texas Instruments 0.0000
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0.00000000 download Surface Mount Tube Obsolete 1 (Unlimited) 28 EAR99 5V 17.9705mm ROHS3 Compliant Lead Free Gold No 28 28-SOIC (0.295, 7.50mm Width) Parallel 7.5565mm Surface Mount 730.794007mg -40°C~85°C CMOS 2.667mm 8542.39.00.01 Clock/Calendar e4 DUAL 260 5V BQ4845 28 1.27mm Timer or RTC 5V Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer Clock 4.75V~5.5V HH:MM:SS (12/24 hr) 8 0.032MHz SECONDS Y NO 1 YY-MM-DD-dd 1.5mA Typ @ 4.5 V~5.5 V 2.3V~4V
RV-3049-C3-32.768K-OPTION-A-TB-QA RV-3049-C3-32.768K-OPTION-A-TB-QA Micro Crystal 0.0000
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0.00000000
M41T56M6E M41T56M6E STMicroelectronics 0.0000
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Min: 1

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0.00000000 download Surface Mount Tube Obsolete 1 (Unlimited) 8 EAR99 5V 4.9mm Non-RoHS Compliant Lead Free No 8 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial No SVHC 1.25mm 3.9mm Surface Mount -40°C~85°C CMOS Clock/Calendar e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL 260 5V 30 M41T56 8 1.27mm Timer or RTC 5V Leap Year, NVSRAM Clock 56B 4.5V~5.5V HH:MM:SS (24 hr) 0.032MHz SECONDS N YES I2C YY-MM-DD-dd 100μA Typ @ 4.5V~5.5V 2.5V~3.5V
ISL12028AIV27Z-T ISL12028AIV27Z-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 unknown Surface Mount -40°C~85°C Clock/Calendar ISL12028A 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
PCF8563T/F4 PCF8563T/F4 NXP Semiconductors 0.0000
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0.00000000 download Active RoHS Compliant 8 Clock/Calendar/Alarm/Timer/Interrupt HH:MM:SS DW:DM:M:Y
X1226V8IZT1 X1226V8IZT1 Renesas Electronics America 0.0000
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Min: 1

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0.00000000 download Cut Tape (CT) Obsolete 1 (Unlimited) ROHS3 Compliant 8-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 X1226 Alarm, Leap Year 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5V 1.8V~5.5V
PT7C4372AZEE PT7C4372AZEE Diodes Incorporated 0.0000
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0.00000000 Obsolete 1 (Unlimited) 8-WFDFN Exposed Pad I2C, 2-Wire Serial Surface Mount -40°C~85°C TA Clock/Calendar Alarm, Leap Year 1.8V~6V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.8μA @ 3V
ISL12028IV27Z-T ISL12028IV27Z-T Rochester Electronics 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 Alarm, Leap Year, Supervisor, Watchdog Timer 14-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
RX-4581NB:B:ROHS RX-4581NB:B:ROHS EPSON 0.0000
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Min: 1

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0.00000000 Surface Mount 85°C -40°C RoHS Compliant 22 SPI 16B HH:MM:SS (24 hr) YY-MM-DD-dd
BQ4845YS-A4TR BQ4845YS-A4TR Rochester Electronics 0.0000
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Min: 1

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0.00000000 Tape & Reel (TR) Obsolete 1 (Unlimited) ROHS3 Compliant 28-SOIC (0.295, 7.50mm Width) Parallel Surface Mount 0°C~70°C Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer 28-SOIC 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.5mA Typ @ 4.5 V~5.5 V 2.3V~4V
ISL12022IBZ-T7A ISL12022IBZ-T7A Intersil 0.0000
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Min: 1

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0.00000000
DS1556W-120IND DS1556W-120IND Maxim Integrated 0.0000
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Min: 1

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0.00000000 download Tube 2005 Obsolete 1 (Unlimited) 32 EAR99 43.053mm Non-RoHS Compliant Contains Lead 32-DIP Module (0.600, 15.24mm) Parallel not_compliant 15.24mm Through Hole -40°C~85°C CMOS 10.922mm 8473.30.11.80 Clock/Calendar e0 Tin/Lead (Sn/Pb) DUAL 240 3.3V NOT SPECIFIED DS1556 32 NO 2.54mm R-PDMA-P32 Timer or RTC Not Qualified 3.3V Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 128KB 2.97V~3.63V HH:MM:SS (24 hr) 8 0.032MHz SECONDS Y NO YY-MM-DD-dd 4mA @ 3.3V
DS1678S+T&R DS1678S+T&R Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Tape & Reel (TR) 2009 Active 1 (Unlimited) ROHS3 Compliant 8-SOIC (0.209, 5.30mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Time Event Recorder DS1678 Alarm, Leap Year, NVSRAM, Y2K 8-SO 32B 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 2.6V~3.5V
R2043L-E2 R2043L-E2 RICOH Electronic Devices Co., LTD. 0.0000
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0.00000000 download 9 Weeks Tape & Reel (TR) Active 1 (Unlimited) 16 2.3mm RoHS Compliant 2.3mm CMOS 0.43mm QUAD NO LEAD 3V 16 INDUSTRIAL YES 0.4mm S-XQCC-N16 1.7V 85°C -40°C 5.5V TIMER, REAL TIME CLOCK 0.032MHz SERIAL, 4-WIRE/SPI
KR3225Y32768EAW30TAA KR3225Y32768EAW30TAA Kyocera International Inc. Electronic Components 0.0000
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0.00000000 download 16 Weeks Tape & Reel (TR) Active 1 (Unlimited) RoHS Compliant 8-SMD I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar Alarm SMD 1.3V~5.5V HH:MM:SS YY-MM-DD-dd 2μA @ 3V
ISL12058IRTZ ISL12058IRTZ Intersil (Renesas Electronics America) 0.0000
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0.00000000 download Surface Mount 2009 Active 1 8 EAR99 85°C -40°C 3.3V 3mm RoHS Compliant Lead Free No 8 2-Wire, I2C, Serial 3.6V 1.8V 3mm CMOS e3 Matte Tin (Sn) - annealed DUAL 260 3V 30 INDUSTRIAL 0.65mm Timer or RTC Clock HH:MM:SS 0.032MHz SECONDS Y YES I2C YY-MM-DD-dd
DS1337ST DS1337ST Maxim Integrated 0.0000
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Min: 1

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0.00000000 yes 1 (Unlimited) 8 EAR99 4.9mm Non-RoHS Compliant Contains Lead 3.9mm CMOS 1.75mm 8542.39.00.01 e3 Matte Tin (Sn) DUAL GULL WING 260 3.3V NOT SPECIFIED 8 INDUSTRIAL YES 1.27mm R-PDSO-G8 1.8V 85°C -40°C Timers or RTCs Not Qualified 2/5V 5.5V TIMER, REAL TIME CLOCK 0.032MHz SECONDS Y YES I2C 1
RX-8035SA:AA3:PURESN RX-8035SA:AA3:PURESN EPSON 0.0000
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0.00000000
DS12885QN+T&R DS12885QN+T&R Maxim Integrated 0.0000
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Min: 1

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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2010 Active 1 (Unlimited) 85°C -40°C 5V ROHS3 Compliant Lead Free No 28 28-LCC (J-Lead) Parallel 5.5V 4.5V Surface Mount -40°C~85°C Clock/Calendar DS12885 Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 28-PLCC (11.51x11.51) Clock 114B 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 15mA @ 4.5V~5.5V 2.5V~4V
DS1388Z-33+T&R DS1388Z-33+T&R Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Tape & Reel (TR) 2002 Active 1 (Unlimited) 85°C -40°C ROHS3 Compliant Lead Free 8 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C S8+4 Clock/Calendar DS1388 EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer 8-SOIC 512B 2.97V~3.63V HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 150μA @ 2.97V~3.63V 1.3V~5.5V
PCA2125TS/1,112 PCA2125TS/1,112 NXP Semiconductors 0.0000
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0.00000000 download Tube 2008 Obsolete 1 (Unlimited) 14 EAR99 5mm ROHS3 Compliant 14-TSSOP (0.173, 4.40mm Width) SPI unknown 4.4mm Surface Mount -40°C~125°C CMOS 1.1mm 8542.39.00.01 Clock/Calendar e4 NICKEL PALLADIUM GOLD DUAL 260 2V 30 PCA2125 14 YES 0.65mm R-PDSO-G14 Timer or RTC Not Qualified 1.5/5V Alarm, Leap Year, Square Wave Output, Watchdog Timer AEC-Q100 1.6V~5.5V HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y NO SERIAL, 3-WIRE YY-MM-DD-dd 1.8μA @ 2V~5V
X1228V14Z X1228V14Z 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
X1227V8I X1227V8I Renesas Electronics America 0.0000
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Min: 1

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0.00000000 download Tube Obsolete 1 (Unlimited) Non-RoHS 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
DS2404S-001 DS2404S-001 Maxim Integrated 0.0000
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Min: 1

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0.00000000 download Surface Mount Tube 2007 EconoRAM yes Obsolete 1 (Unlimited) 16 EAR99 10.3mm Non-RoHS Compliant Contains Lead No 16-SOIC (0.295, 7.50mm Width) 1-Wire® and 3-Wire 7.5mm Surface Mount -40°C~85°C CMOS 2.65mm 8542.39.00.01 Binary Counter e3 Matte Tin (Sn) DUAL 260 5V DS2404 16 1.27mm R-PDSO-G16 Alarm, Square Wave Output, SRAM Clock 512B 2.8V~5.5V Binary 0.032MHz SERIAL, 3-WIRE 500μA @ 5V 2.8V~5.5V
DS1347T+T&R DS1347T+T&R Maxim Integrated 0.0000
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Min: 1

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0.00000000 download 6 Weeks Surface Mount Digi-Reel® 2012 Active 1 (Unlimited) 85°C -40°C 3.3V ROHS3 Compliant No 8 8-WDFN Exposed Pad SPI 5.5V Unknown 2V Surface Mount -40°C~85°C Clock/Calendar DS1347 Alarm, Leap Year, SRAM 8-TDFN (3x3) Clock 2V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.7μA~0.8μA @ 2V~5V
ISL12027IBAZ-T ISL12027IBAZ-T Rochester Electronics 0.0000
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Min: 1

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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 -40°C~85°C Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer 8-SOIC 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
DS1553P-70 DS1553P-70 Maxim Integrated 0.0000
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0.00000000 download Tube 2005 Obsolete 3 (168 Hours) 34 EAR99 Non-RoHS Compliant Contains Lead A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED 34-PowerCap™ Module Parallel not_compliant Surface Mount 0°C~70°C CMOS 8542.39.00.01 Clock/Calendar e0 TIN LEAD DUAL 240 5V NOT SPECIFIED DS1553 34 YES R-XDMA-U34 Timer or RTC Not Qualified 5V Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 8KB 4.5V~5.5V HH:MM:SS (24 hr) 8 0.032MHz SECONDS Y NO YY-MM-DD-dd 3mA @ 5V 3V
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