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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 Compliance Code Min Supply Voltage Frequency Width Mounting Type Weight Operating Temperature Technology Height Seated (Max) 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 Access Time Screening Level Memory Size Number of Bits 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
X1227S8-2.7T1 X1227S8-2.7T1 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 0°C~70°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
DS1685S-5+ DS1685S-5+ Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Tube 2000 yes Active 1 (Unlimited) 24 EAR99 15.4mm ROHS3 Compliant Lead Free 24 24-SOIC (0.295, 7.50mm Width) Parallel 7.5mm Surface Mount 0°C~70°C CMOS 2.65mm 8473.30.11.80 Clock/Calendar e3 Tin (Sn) DUAL 260 5V NOT SPECIFIED DS1685 24 YES 1.27mm Timer or RTC Not Qualified 5V Alarm, NVSRAM, Square Wave Output, Y2K 242B 4.5V~5.5V HH:MM:SS (12/24 hr) 8 0.032MHz SECONDS Y YES 1 YY-MM-DD-dd 3mA @ 5V 2.5V~3.7V
RX-8581NB:B3 RX-8581NB:B3 EPSON 0.0000
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0.00000000 download 13 Weeks Surface Mount Tape & Reel (TR) RX-8581NB Active 1 (Unlimited) 85°C -40°C ROHS3 Compliant Contains Lead 22 22-SMD, 20 Leads, Flat Leads I2C, 2-Wire Serial 5.5V 1.8V Surface Mount -40°C~85°C Clock/Calendar Alarm, Leap Year 22-SON Clock 1.8V~5.5V HH:MM:SS (24 hr) YY-MM-DD-dd 0.8μA~1.2μA @ 3V~5V
X1227S8I-2.7A X1227S8I-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 Contains Lead SOIC 2-Wire, I2C, Serial 3.9116mm CMOS 1.7272mm 8542.39.00.01 e0 Tin/Lead (Sn/Pb) DUAL 240 5V 40 8 INDUSTRIAL 1.27mm R-PDSO-G8 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 NO I2C 1 YY-MM-DD-dd
DS1746W-120+ DS1746W-120+ Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Tube 2012 yes Active 1 (Unlimited) 32 EAR99 43.053mm ROHS3 Compliant Lead Free 32 32-DIP Module (0.600, 15.24mm) Parallel not_compliant 15.24mm Through Hole 0°C~70°C CMOS 10.922mm 8473.30.11.80 Clock/Calendar e3 Matte Tin (Sn) DUAL 260 3.3V NOT SPECIFIED DS1746 32 NO 2.54mm Timers or RTCs Not Qualified 3.3V Leap Year, NVSRAM, Y2K 128KB 2.97V~3.63V HH:MM:SS (24 hr) 8 SECONDS N NO YY-MM-DD-dd 2mA @ 3.3V
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
DS1557P-70IND+ DS1557P-70IND+ Maxim Integrated 0.0000
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0.00000000 download 10 Weeks Surface Mount Tube 2003 yes Active 3 (168 Hours) 34 EAR99 5V 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 5V DS1557 34 Timer or RTC 5V Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Clock 512KB 4.5V~5.5V HH:MM:SS (24 hr) 8 0.032MHz SECONDS Y NO YY-MM-DD-dd 6mA @ 5V 3V
ECS-RTC-SOP8-5101A-TR ECS-RTC-SOP8-5101A-TR ECS Inc International 0.0000
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0.00000000
1338-18DCGI 1338-18DCGI Renesas Electronics America 0.0000
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0.00000000 download 12 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 IDT1338 Leap Year, NVSRAM, Square Wave Output 8-SOIC 56B 1.8V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 2μA @ 3.3V 1.3V~3.7V
DS1338C-33#T&R DS1338C-33#T&R Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2012 Active 1 (Unlimited) 85°C -40°C 3.3V ROHS3 Compliant Tin No 16 16-SOIC (0.295, 7.50mm Width) I2C, 2-Wire Serial 5.5V 3V Surface Mount 665.986997mg -40°C~85°C Clock/Calendar DS1338 Leap Year, NVSRAM, Square Wave Output 16-SOIC Clock 56B 3V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 125μA~200μA @ 3.63V~5.5V 1.3V~3.7V
X1228V14Z X1228V14Z 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 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
X1286V14 X1286V14 Renesas Electronics America 0.0000
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0.00000000 download Tube Obsolete 1 (Unlimited) Non-RoHS Compliant 14-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial Surface Mount 0°C~70°C Clock/Calendar X1286 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
RX8804CE XB0 RX8804CE XB0 EPSON 0.0000
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0.00000000
RX-4571LC:B0 PURE SN RX-4571LC:B0 PURE SN EPSON 0.0000
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0.00000000
1337DCGI 1337DCGI Renesas Electronics America 0.0000
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0.00000000 download Tube Obsolete 1 (Unlimited) 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar IDT1337 Alarm, Leap Year, Square Wave Output 8-SOIC 1.8V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.6μA @ 1.3V~1.8V
ISL12028IBZ-T ISL12028IBZ-T Intersil 0.0000
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0.00000000
ISL1219IUZ ISL1219IUZ Renesas Electronics America 0.0000
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0.00000000 download 16 Weeks Tube 2004 Active 2 (1 Year) EAR99 ROHS3 Compliant 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C 8542.39.00.01 Time Event Recorder e3 MATTE TIN NOT SPECIFIED NOT SPECIFIED ISL1219 10 Alarm, Leap Year, SRAM 2B 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 4μA~6μA @ 3V~5V 1.8V~5.5V
PCF2129T/1,512 PCF2129T/1,512 NXP Semiconductors / Freescale 0.0000
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0.00000000 download Non-RoHS Compliant
DS12R885S-5+T&R DS12R885S-5+T&R Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2012 Active 1 (Unlimited) 85°C -40°C 5V ROHS3 Compliant Lead Free Tin No 24 24-SOIC (0.295, 7.50mm Width) Parallel 5.5V 4.5V Surface Mount -40°C~85°C Clock/Calendar DS12R885 Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger 24-SOIC Clock 114B 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 2mA @ 4.5V~5.5V 2V~3.05V
MCP795B21-I/SL MCP795B21-I/SL Microchip Technology 0.0000
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0.00000000 download Tube 2011 Obsolete 1 (Unlimited) 14 EAR99 8.65mm ROHS3 Compliant ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ 14-SOIC (0.154, 3.90mm Width) SPI 3.9mm Surface Mount -40°C~85°C CMOS 1.75mm 8542.39.00.01 Clock/Calendar e3 MATTE TIN (SN) DUAL 5V MCP795B21 14 YES 1.27mm 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
IDT1339-31DVGI8 IDT1339-31DVGI8 Integrated Device Technology (IDT) 0.0000
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0.00000000 download Surface Mount Tape & Reel (TR) 2006 85°C -40°C RoHS Compliant TSSOP 2-Wire, I2C, Serial HH:MM:SS (12/24 hr) YY-MM-DD-dd
DS1672U-2+ DS1672U-2+ Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Tube 2002 yes Obsolete 1 (Unlimited) 8 EAR99 3mm ROHS3 Compliant Lead Free 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) I2C, 2-Wire Serial 3mm Surface Mount -40°C~85°C CMOS 1.1mm 8473.30.11.80 Binary Counter e3 Tin (Sn) DUAL 260 2V 30 DS1672 8 YES 0.65mm S-PDSO-G8 Timers or RTCs Not Qualified 2V Trickle-Charger 1.8V~2.2V Binary 0.032MHz SECONDS N NO I2C 500μA @ 2.2V 1.3V~3.63V
RV-3049-C3-32.768KHZ-OPTION-B-TA-QC RV-3049-C3-32.768KHZ-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-VCDFN 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
PCF2123U/5GA/1,015 PCF2123U/5GA/1,015 NXP Semiconductors 0.0000
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0.00000000 download 2010 Obsolete 1 (Unlimited) 12 ROHS3 Compliant CMOS 8542.39.00.01 e3 MATTE TIN UPPER NO LEAD NOT SPECIFIED 2V NOT SPECIFIED INDUSTRIAL YES R-XUUC-N12 1.8V 85°C -40°C Timer or RTC Not Qualified 1.1/5.5V 4.2V TIMER, REAL TIME CLOCK 0.032MHz SECONDS Y YES SERIAL, 3-WIRE 1
X1227S8I-4.5A X1227S8I-4.5A Intersil 0.0000
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0.00000000
ISL12027IV27AZ ISL12027IV27AZ Renesas Electronics America 0.0000
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0.00000000 download Tube 2010 Obsolete 1 (Unlimited) ROHS3 Compliant 8-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar ISL12027 8 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
DS17885-5+ DS17885-5+ Maxim Integrated 0.0000
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Min: 1

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0.00000000 download 17 Weeks Tube 2000 yes Obsolete 1 (Unlimited) 24 EAR99 31.75mm ROHS3 Compliant Lead Free 24-DIP (0.600, 15.24mm) Parallel 15.24mm Through Hole 0°C~70°C CMOS 5.08mm 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) DUAL 260 5V 30 DS17885 24 NO 2.54mm R-PDIP-T24 Timer or RTC Not Qualified 5V Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 8KB 4.5V~5.5V HH:MM:SS (12/24 hr) 8 0.032MHz SECONDS Y YES 1 YY-MM-DD-dd 3mA @ 4.5V~5.5V 2.5V~3.7V
DS1742-85+ DS1742-85+ Rochester Electronics 0.0000
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0.00000000 download Obsolete 3 (168 Hours) ROHS3 Compliant
M48T129Y-70PM1 M48T129Y-70PM1 STMicroelectronics 0.0000
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Min: 1

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0.00000000 download Through Hole Tube Timekeeper® Obsolete 1 (Unlimited) 32 EAR99 5V 42.8mm ROHS3 Compliant Lead Free 32 32-DIP Module (0.600, 15.24mm) Parallel 70GHz 15.24mm Through Hole 0°C~70°C CMOS 9.52mm 8542.39.00.01 Clock/Calendar e3 MATTE TIN DUAL 225 5V NOT SPECIFIED M48T129 32 2.54mm Timer or RTC Not Qualified 5V Alarm, Leap Year, Watchdog Timer Clock 70 ns 976.6kB 4.5V~5.5V HH:MM:SS (24 hr) 8 128000 8 SECONDS Y NO YY-MM-DD-dd 4mA @ 4.5V~5.5V
MCP79402T-I/MNY MCP79402T-I/MNY Microchip Technology 0.0000
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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2011 Active 1 (Unlimited) 8 EAR99 3mm ROHS3 Compliant No 8 8-WFDFN Exposed Pad I2C, 2-Wire Serial 2mm Surface Mount -40°C~85°C CMOS Clock/Calendar e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL 260 2.5V 40 MCP79402 8 0.5mm Timer or RTC 2/5V Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Clock TS 16949 64B 1.8V~5.5V HH:MM:SS (12/24 hr) 0.4MHz SECONDS Y NO I2C 1 YY-MM-DD-dd 1.2μA Typ @ 3.3V 1.3V~5.5V
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