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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 Termination 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 Frequency Height Width Mounting Type Weight Operating Temperature Technology Operating Supply Current Height Seated (Max) HTS Code 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) Max Power Dissipation Feature Watchdog Timer Number of Voltages Monitored Supplier Device Package Logic Function Access Time Memory Size Number of Bits Supply Current-Max Voltage - Supply Time Format External Data Bus Width uPs/uCs/Peripheral ICs Type Clock Frequency RAM (words) On Chip Data RAM Width Time-Min Interrupt Capability Volatile Information Access Method Number of Timers Date Format Current - Timekeeping (Max) Voltage - Supply, Battery
DS1647-120+ DS1647-120+ Maxim Integrated 0.0000
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0.00000000 download Through Hole Tube 2012 yes Obsolete 1 (Unlimited) 32 EAR99 5V 43.053mm ROHS3 Compliant Lead Free No 32 32-DIP Module (0.600, 15.24mm) Parallel Unknown 15.24mm Through Hole 0°C~70°C CMOS 10.922mm 8473.30.11.80 Clock/Calendar e3 Matte Tin (Sn) DUAL 260 5V DS1647 32 2.54mm Timer or RTC 5V Leap Year, NVSRAM Clock 512KB 4.5V~5.5V HH:MM:SS (24 hr) 8 SECONDS N NO YY-MM-DD-dd 4mA @ 4.5 V~5.5 V
1337GNLGI8 1337GNLGI8 Renesas Electronics America 0.0000
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0.00000000 download Tape & Reel (TR) Obsolete 3 (168 Hours) 16-VFQFN Exposed Pad I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar IDT1337 Alarm, Leap Year, Square Wave Output 16-QFN (3x3) 1.8V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.6μA @ 1.3V~1.8V
M48T12-200PC1 M48T12-200PC1 STMicroelectronics 0.0000
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0.00000000 download Through Hole Tube Timekeeper® Obsolete 1 (Unlimited) 24 EAR99 5V 34.545mm ROHS3 Compliant 24 24-DIP Module (0.600, 15.24mm) Parallel 200GHz Through Hole 0°C~70°C CMOS 9.65mm 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) DUAL 260 5V 10 M48T12 24 2.54mm Timer or RTC Not Qualified 5V Leap Year Clock 200 ns 15.6kB 80mA 4.5V~5.5V HH:MM:SS (24 hr) 8 2040 8 SECONDS N NO YY-MM-DD-dd 3mA @ 4.5V~5.5V
MCP795B20-I/ST MCP795B20-I/ST Microchip Technology 0.0000
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0.00000000 download Tube 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 MCP795B20 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
X1227S8I-2.7T1 X1227S8I-2.7T1 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
M48T201Y-70MH1E M48T201Y-70MH1E STMicroelectronics 0.0000
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0.00000000 download Surface Mount Tube Timekeeper® Obsolete 1 (Unlimited) 44 SMD/SMT EAR99 5V 18.49mm Non-RoHS Compliant Lead Free No 44 44-BSOP (0.337, 8.56mm Width) requires SNAPHAT Parallel No SVHC 70GHz 2.69mm 8.89mm Surface Mount 0°C~70°C CMOS 15mA Clock/Calendar e3/e4 TIN/NICKEL PALLADIUM GOLD DUAL 5V M48T201 44 Timer or RTC 5V 1W Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K Yes 1 Clock 70 ns 512kB 4.5V~5.5V HH:MM:SS (24 hr) SECONDS Y NO 1 YY-MM-DD-dd 3mA @ 4.5V~5.5V 3V
ISL12008IB8Z ISL12008IB8Z Renesas Electronics America 0.0000
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0.00000000 download 7 Weeks Tube Active 1 (Unlimited) ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar ISL12008 8 Alarm, Leap Year 2.7V~5.5V HH:MM:SS:hh (24 hr) YY-MM-DD-dd 4μA~6μA @ 3V~5V 1.8V~5.5V
BU9873FVM-GTTR BU9873FVM-GTTR ROHM Semiconductor 0.0000
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0.00000000 11 Weeks Surface Mount Cut Tape (CT) 2013 Active 1 (Unlimited) 8 EAR99 2.9mm ROHS3 Compliant 8-VSSOP, 8-MSOP (0.110, 2.80mm Width) I2C, 2-Wire Serial 2.8mm Surface Mount -40°C~85°C CMOS 0.9mm 8542.39.00.01 Clock/Calendar DUAL NOT SPECIFIED 3V NOT SPECIFIED 0.65mm R-PDSO-G8 Alarm, Leap Year 1.8V~5.5V HH:MM:SS (12/24 hr) I2C YY-MM-DD-dd 1μA~1.35μA @ 3V~5.5V
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
RX-4035SA:B3 PURE SN RX-4035SA:B3 PURE SN EPSON 0.0000
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0.00000000 download 13 Weeks Tape & Reel (TR) RX-4035SA Active 1 (Unlimited) ROHS3 Compliant 14-SOIC (0.197, 5.00mm Width) SPI Surface Mount -40°C~85°C Time Event Recorder Alarm, Leap Year 14-SOP 2.4V~5.5V 2.5μA @ 3V 1V~5.5V
DS1746WP-120 DS1746WP-120 Maxim Integrated 0.0000
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0.00000000 download Surface Mount Tube 2005 yes Obsolete 3 (168 Hours) 34 EAR99 3.3V 25.27mm Non-RoHS Compliant Contains Lead Tin No 34 34-PowerCap™ Module Parallel Unknown 120GHz 810μm 23.62mm Surface Mount 0°C~70°C CMOS 8473.30.11.80 Clock/Calendar e3 DUAL 260 3.3V DS1746 34 1.27mm Timers or RTCs Leap Year, NVSRAM, Y2K Clock 120 ns 128KB 2.97V~3.63V HH:MM:SS (24 hr) SECONDS N NO YY-MM-DD-dd 2mA @ 3.3V 3V
BQ4285S-SB2G4 BQ4285S-SB2G4 Texas Instruments 0.0000
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0.00000000 download Surface Mount Tube Obsolete 1 (Unlimited) 24 EAR99 5V 15.4mm ROHS3 Compliant Lead Free Gold No 24 24-SOIC (0.295, 7.50mm Width) Parallel 2.35mm 7.52mm Surface Mount 624.398247mg 0°C~70°C CMOS 8542.39.00.01 Clock/Calendar e4 DUAL 260 5V BQ4285 24 1.27mm Timer or RTC 5V Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Clock 114B 4.5V~5.5V HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y NO 1 YY-MM-DD-dd 2.5V~4V
X1288S16I-2.7T1 X1288S16I-2.7T1 Renesas Electronics America 0.0000
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0.00000000 download Tape & Reel (TR) Obsolete 1 (Unlimited) Non-RoHS Compliant 16-SOIC (0.295, 7.50mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar X1288 Alarm, Leap Year, Supervisor, Watchdog Timer 2.7V~5.5V HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5V 1.8V~5.5V
RX-4801SA:UB3PURESN RX-4801SA:UB3PURESN EPSON 0.0000
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0.00000000
DS1646-120 DS1646-120 Rochester Electronics 0.0000
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0.00000000 download Tube 2005 no Obsolete 1 (Unlimited) 32 Non-RoHS Compliant Contains Lead 32 32-DIP Module (0.600, 15.24mm) Parallel Through Hole 0°C~70°C CMOS Clock/Calendar e0 TIN LEAD DUAL 240 5V NOT SPECIFIED 32 NO COMMERCIAL Leap Year, NVSRAM 128KB 4.5V~5.5V HH:MM:SS (24 hr) 8 YY-MM-DD-dd 4mA @ 4.5 V~5.5 V 3V
X1227S8I-2.7A X1227S8I-2.7A Intersil 0.0000
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0.00000000
DS1744-70+ DS1744-70+ Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Tube 2005 yes Active 1 (Unlimited) 28 EAR99 38.227mm ROHS3 Compliant Lead Free 28 28-DIP Module (0.600, 15.24mm) Parallel not_compliant 15.24mm Through Hole 0°C~70°C CMOS 10.668mm 8473.30.11.80 Clock/Calendar e3 Matte Tin (Sn) DUAL 260 5V NOT SPECIFIED DS1744 28 NO 2.54mm Timer or RTC Not Qualified 5V Leap Year, NVSRAM, Y2K 32KB 4.5V~5.5V HH:MM:SS (24 hr) 8 0.032MHz SECONDS N NO YY-MM-DD-dd 4mA @ 5V
RX8900CE:UA3 RX8900CE:UA3 EPSON 0.0000
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0.00000000 download 13 Weeks Surface Mount Tape & Reel (TR) RX8900CE Active 1 (Unlimited) 85°C -40°C ROHS3 Compliant Lead Free 10 10-SMD, No Lead I2C Surface Mount -40°C~85°C Clock/Calendar Alarm 10-SMD 2.5V~5.5V HH:MM:SS (24 hr) YY-MM-DD-dd 1.4μA~1.5μA @ 3V~5V 1.6V~5.5V
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
R2061S02-E2-F R2061S02-E2-F Ricoh Electronic Devices Company 0.0000
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0.00000000 download 9 Weeks Tape & Reel (TR) Active 1 (Unlimited) RoHS Compliant SSOP NOT SPECIFIED NOT SPECIFIED Clock
PCF8583T/5,512 PCF8583T/5,512 Rochester Electronics 0.0000
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0.00000000 download Tube Obsolete 2 (1 Year) ROHS3 Compliant 8-SOIC (0.295, 7.50mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar Alarm, NVSRAM, Square Wave Output 8-SO 240B 2.5V~6V HH:MM:SS:hh (12/24 hr) YY-MM-DD 10μA~50μA @ 1V~5V
DS1685QN-3 DS1685QN-3 Rochester Electronics 0.0000
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0.00000000 download Tube no Obsolete 1 (Unlimited) 28 11.505mm Non-RoHS Compliant 28-LCC (J-Lead) Parallel unknown 11.505mm Surface Mount -40°C~85°C CMOS 4.57mm Clock/Calendar e0 TIN LEAD QUAD NOT SPECIFIED 3V NOT SPECIFIED 28 YES 1.27mm S-PQCC-J28 COMMERCIAL Alarm, NVSRAM, Square Wave Output, Y2K 242B 2.7V~3.7V HH:MM:SS (12/24 hr) 8 0.032MHz 1 YY-MM-DD-dd 2mA @ 3V 2.5V~3.7V
ISL12082IUZ-T ISL12082IUZ-T Intersil (Renesas Electronics America) 0.0000
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0.00000000 download Surface Mount Tape & Reel 2008 Active 1 8 EAR99 85°C -40°C 3.3V 3mm RoHS Compliant 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 3.3V INDUSTRIAL 0.5mm R-PDSO-G8 Timer or RTC 3/5V Clock HH:MM:SS:hh Y NO I2C YY-MM-DD-dd
X1288S16IT1 X1288S16IT1 Intersil (Renesas Electronics America) 0.0000
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0.00000000 download Surface Mount Tape & Reel (TR) 2005 1 (Unlimited) 16 EAR99 85°C -40°C 10.3mm Non-RoHS Compliant Contains Lead SOIC 2-Wire, I2C, Serial not_compliant 7.5mm CMOS 2.65mm 8542.39.00.01 e0 Tin/Lead (Sn/Pb) DUAL 240 5V NOT SPECIFIED 16 INDUSTRIAL 1.27mm R-PDSO-G16 4.5V Timer or RTC Not Qualified 5V 5.5V 31.3kB HH:MM:SS:hh (12/24 hr) TIMER, REAL TIME CLOCK 0.032MHz 1/100SECOND Y YES I2C 1 YY-MM-DD-dd
DS1643-70+ DS1643-70+ Maxim Integrated 0.0000
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0.00000000 download Tube 2010 Obsolete 1 (Unlimited) 28 EAR99 37.595mm ROHS3 Compliant Lead Free 28-DIP Module (0.600, 15.24mm) Parallel 15.24mm Through Hole 0°C~70°C CMOS 9.02mm 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) DUAL 260 5V NOT SPECIFIED DS1643 28 NO 2.54mm R-XDMA-P28 Timer or RTC Not Qualified 5V Leap Year, NVSRAM 8KB 4.5V~5.5V HH:MM:SS (24 hr) 8 0.032MHz SECONDS N NO 1 YY-MM-DD-dd 3mA @ 5V
DS1747W-120IND+ DS1747W-120IND+ Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Tube 2007 yes Active 1 (Unlimited) 32 EAR99 43.053mm ROHS3 Compliant Lead Free 32 32-DIP Module (0.600, 15.24mm) Parallel 15.24mm Through Hole -40°C~85°C CMOS 10.922mm 8473.30.11.80 Clock/Calendar e3 Matte Tin (Sn) DUAL 260 3.3V NOT SPECIFIED DS1747 32 NO 2.54mm Timer or RTC Not Qualified 3.3V Leap Year, NVSRAM, Y2K 512KB 2.97V~3.63V HH:MM:SS (24 hr) 8 SECONDS N NO YY-MM-DD-dd 2mA @ 3.3V
ISL12021CVZ ISL12021CVZ 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 -20°C~70°C Clock/Calendar ISL12021 Alarm, Daylight Savings, Leap Year, SRAM 14-TSSOP 128B 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 5.5μA~6.5μA @ 3V~5V 1.8V~5.5V
CBC34803-M5C-TR1 CBC34803-M5C-TR1 Cymbet Corporation 0.0000
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0.00000000 download 2 Weeks Surface Mount Tape & Reel (TR) 2014 EnerChip™ Active 3 (168 Hours) RoHS Compliant Lead Free 16 16-LQFN I2C, 2-Wire Serial unknown Surface Mount -10°C~70°C Clock/Calendar Alarm, Leap Year 2.5V~5.5V HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 2.75V~3.25V
X1227S8I-4.5A X1227S8I-4.5A Renesas Electronics America 0.0000
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0.00000000 download Tube 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 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5V 1.8V~5.5V
ISL12024IBZ-T ISL12024IBZ-T Renesas Electronics America 0.0000
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0.00000000 download 7 Weeks Cut Tape (CT) 1999 Active 1 (Unlimited) EAR99 ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) NOT SPECIFIED NOT SPECIFIED ISL12024 8 Alarm, Leap Year, Unique ID 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
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