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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 Frequency Height Width Mounting Type Weight Operating Temperature Technology Height Seated (Max) HTS Code Nominal Supply Current Evaluation Kit 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 Number of Terminals Logic Function Access Time Accuracy Memory Size Function Address Bus Width Voltage - Supply Time Format External Data Bus Width uPs/uCs/Peripheral ICs Type Clock Frequency Time-Min Interrupt Capability Volatile Information Access Method Non-Volatile Memory Number of Timers Date Format Current - Timekeeping (Max) Voltage - Supply, Battery
RV-3029-C3-32.768KHZ-OPTION-A-TB-QA RV-3029-C3-32.768KHZ-OPTION-A-TB-QA 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 I2C, 2-Wire Serial Surface Mount -40°C~125°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
IDT1339-2DCGI8 IDT1339-2DCGI8 Integrated Device Technology (IDT) 0.0000
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0.00000000 Surface Mount Tape & Reel (TR) 85°C -40°C RoHS Compliant SOIC 2-Wire, I2C, Serial HH:MM:SS (12/24 hr) YY-MM-DD-dd
X1205S8 X1205S8 Intersil Corporation 0.0000
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0.00000000 EAR99 4.9mm Non-RoHS Compliant not_compliant 3.9mm CMOS 1.75mm 8542.39.00.01 e0 Tin/Lead (Sn/Pb) DUAL GULL WING 5V 8 COMMERCIAL YES 1.27mm R-PDSO-G8 2.7V 70°C Timer or RTC Not Qualified 3/5V 5.5V 8 TIMER, REAL TIME CLOCK 0.032MHz SECONDS Y YES I2C
RX4045SA:AA3 RX4045SA:AA3 Epson America, Inc 0.0000
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0.00000000 download Tape and Reel Obsolete Yes with exemptions 14 Clock/Calendar/Alarm/Timer/Interrupt HH:MM:SS DW:DM:M:Y
PCF2127T/1,518 PCF2127T/1,518 NXP Semiconductors 0.0000
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0.00000000
DS3231MZ+TRL DS3231MZ+TRL Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2012 yes Active 1 (Unlimited) 8 EAR99 3.3V 4.9mm ROHS3 Compliant No 8 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Unknown 3.9mm Surface Mount -40°C~85°C CMOS 1.75mm Yes Clock/Calendar e3 Matte Tin (Sn) DUAL 3.3V DS3231 1.27mm Timer or RTC Alarm, Leap Year, Square Wave Output Clock 2.3V~5.5V HH:MM:SS (12/24 hr) SECONDS Y NO I2C 1 YY-MM-DD-dd 130μA~200μA @ 3.63V~5.5V 2.3V~5.5V
X1227S8Z-2.7A X1227S8Z-2.7A Renesas Electronics America 0.0000
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0.00000000 download Tube Obsolete 1 (Unlimited) ROHS3 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
ISL12008IB8Z ISL12008IB8Z Intersil (Renesas Electronics America) 0.0000
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0.00000000 download 5 Weeks Surface Mount 2008 Active 1 8 EAR99 85°C -40°C 4.9mm RoHS Compliant Lead Free No 8 SOIC 2-Wire, I2C, Serial 5.5V 2.7V 3.9mm CMOS 1.75mm e3 Matte Tin (Sn) - annealed DUAL 260 3V 30 8 INDUSTRIAL 1.27mm Timer or RTC 3/5V Clock HH:MM:SS:hh 0.032MHz SECONDS Y NO I2C YY-MM-DD-dd
DS1244Y-70+ DS1244Y-70+ Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Through Hole Tube 2011 yes Active 1 (Unlimited) 28 EAR99 5V 39.37mm ROHS3 Compliant Lead Free No 28 28-DIP Module (0.600, 15.24mm) Parallel Unknown 70GHz 9.35mm 18.8mm Through Hole 4.187905g 0°C~70°C CMOS 8473.30.11.40 85mA Phantom Time Chip e3 Matte Tin (Sn) DUAL 5V DS1244 28 2.54mm Timer or RTC 5V Leap Year, NVSRAM Clock 70 ns 32KB 13b 4.5V~5.5V HH:MM:SS:hh (12/24 hr) 1/100SECOND N YES YY-MM-DD-dd 10mA @ 5V
RX-8581SA B0 ROHS RX-8581SA B0 ROHS Epson America, Inc 0.0000
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0.00000000 download Tape and Reel LTB Yes with exemptions 14 Clock/Calendar/Alarm HH:MM:SS DW:DM:M:Y
DS1251WP-120+ DS1251WP-120+ Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Tube 2011 yes Active 3 (168 Hours) 34 3A991.B.2.A 24.384mm ROHS3 Compliant Lead Free USE DS9034PCX TO ORDER POWERCAP 34-PowerCap™ Module Parallel not_compliant 23.495mm Surface Mount 0°C~70°C CMOS 6.858mm 8473.30.11.40 Phantom Time Chip e3 Matte Tin (Sn) DUAL NOT SPECIFIED 3.3V NOT SPECIFIED DS1251 34 YES 1.27mm R-XDMA-U34 Timer or RTC Not Qualified 3.3V Leap Year, NVSRAM 512KB 2.97V~3.63V HH:MM:SS:hh (12/24 hr) 8 1/100SECOND N NO YY-MM-DD-dd 7mA @ 3.3V 3V
S-35390A-J8T1G S-35390A-J8T1G ABLIC U.S.A. Inc. 0.0000
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0.00000000 download 18 Weeks Tape & Reel (TR) yes Active 1 (Unlimited) 8 EAR99 5.02mm RoHS Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 3.9mm Surface Mount -40°C~85°C CMOS 1.75mm 8542.39.00.01 Clock/Calendar e6 Tin/Bismuth (Sn/Bi) DUAL 260 3V 10 8 YES 1.27mm R-PDSO-G8 Not Qualified Alarm, Leap Year 1.3V~5.5V HH:MM:SS (12/24 hr) 0.032MHz SERIAL, 2-WIRE/I2C 1 YY-MM-DD-dd 0.93μA~1.1μA @ 3V~5V
X1226V8IZ X1226V8IZ Intersil 0.0000
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0.00000000
RX-8035SA:B PURE SN R RX-8035SA:B PURE SN R EPSON 0.0000
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0.00000000 download 13 Weeks Tape & Reel (TR) RX-8035SA Active 1 (Unlimited) ROHS3 Compliant 14-SOIC (0.197, 5.00mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Time Event Recorder Alarm 2.4V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 2.5μA @ 3V 1V~5.5V
X1227S8I-2.7AT1 X1227S8I-2.7AT1 Intersil Corporation 0.0000
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0.00000000 1 EAR99 4.9022mm Non-RoHS Compliant not_compliant 3.9116mm CMOS 1.7272mm 8542.39.00.01 e0 Tin/Lead (Sn/Pb) DUAL GULL WING 240 5V 40 8 INDUSTRIAL YES 1.27mm R-PDSO-G8 2.7V 85°C -40°C Timer or RTC Not Qualified 3/5V 5.5V 8 TIMER, REAL TIME CLOCK 0.032MHz SECONDS Y NO I2C 1
MCP7940N-I/ST MCP7940N-I/ST Microchip Technology 0.0000
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0.00000000 download 5 Weeks Surface Mount Tube 2010 Automotive, AEC-Q100 Active 1 (Unlimited) 8 EAR99 4.5mm ROHS3 Compliant Lead Free No 8 8-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial No SVHC 1.05mm 3.1mm Surface Mount -40°C~85°C CMOS Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 260 2.5V 40 MCP7940N 8 0.65mm Timer or RTC 2/5V Alarm, Leap Year, Square Wave Output, SRAM Clock 1.8V~5.5V HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y I2C 64 B YY-MM-DD-dd 1.2μA @ 3.3V 1.3V~5.5V
ISL12022IBZ ISL12022IBZ Intersil (Renesas Electronics America) 0.0000
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0.00000000 download 6 Weeks Surface Mount 1999 Active 1 8 EAR99 85°C -40°C 5mm RoHS Compliant Lead Free Tin No 8 SOIC 2-Wire, I2C, Serial 5.5V 2.7V 1.5mm 4mm 540.001716mg CMOS e3 DUAL 260 3V 30 8 INDUSTRIAL 1.27mm Timer or RTC 3/5V Clock 0.0005 % 128B HH:MM:SS 0.032MHz SECONDS Y I2C 128 B YY-MM-DD-dd
S-35190A-J8T1G S-35190A-J8T1G ABLIC U.S.A. Inc. 0.0000
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0.00000000 download 12 Weeks Tape & Reel (TR) yes Not For New Designs 1 (Unlimited) 8 EAR99 5.02mm RoHS Compliant 8-SOIC (0.154, 3.90mm Width) 3-Wire Serial 3.9mm Surface Mount -40°C~85°C CMOS 1.75mm 8542.39.00.01 Clock/Calendar e6/e2 TIN BISMUTH/TIN SILVER DUAL 260 3V 10 8 YES 1.27mm R-PDSO-G8 Not Qualified Alarm, Leap Year 1.3V~5.5V HH:MM:SS (12/24 hr) 0.032MHz SERIAL, 3-WIRE 1 YY-MM-DD-dd 0.93μA~1.1μA @ 3V~5V
ISL12020MIRZ ISL12020MIRZ Renesas Electronics America 0.0000
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0.00000000 download 3 Weeks Tube 2008 Active 1 (Unlimited) 20 EAR99 5.5mm ROHS3 Compliant 20-PowerLFDFN I2C, 2-Wire Serial 4mm Surface Mount -40°C~85°C CMOS 1.3mm 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 3V ISL12020 20 YES 0.5mm R-PDSO-N20 Alarm, Daylight Savings, Leap Year, SRAM 128B 2.7V~5.5V HH:MM:SS (12/24 hr) I2C YY-MM-DD-dd 14μA~15μA @ 3V~5V 1.8V~5.5V
RX-8035SA:AC3 PURE SN RX-8035SA:AC3 PURE SN EPSON 0.0000
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0.00000000 download 13 Weeks Tape & Reel (TR) RX-8035SA Active 1 (Unlimited) ROHS3 Compliant 14-SOIC (0.197, 5.00mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Time Event Recorder Alarm 2.4V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 2.5μA @ 3V 1V~5.5V
ISL12026IBZ-T ISL12026IBZ-T Renesas Electronics America 0.0000
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0.00000000 download 6 Weeks Cut Tape (CT) Active 1 (Unlimited) 8 EAR99 4.9mm ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 3.9mm Surface Mount -40°C~85°C CMOS 1.75mm 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL NOT SPECIFIED 3.3V NOT SPECIFIED ISL12026 8 YES 1.27mm R-PDSO-G8 Alarm, Leap Year 2.7V~5.5V HH:MM:SS (12/24 hr) I2C YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
RV-3129-C3-32.768KHZ-OPTION-A-TA-QC RV-3129-C3-32.768KHZ-OPTION-A-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 I2C, 2-Wire Serial Surface Mount -40°C~85°C TA Clock/Calendar Gold Flash (Au) 260 40 Alarm, EEPROM, NVRAM, Trickle Charger 2B 8B 1.3V~5.5V HH:MM:SS YY-MM-DD-dd 1μA @ 3V
RV-3029-C3-32.768KHZ-OPTION-A-TB-QC RV-3029-C3-32.768KHZ-OPTION-A-TB-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 I2C, 2-Wire Serial Surface Mount -40°C~125°C TA Clock/Calendar Alarm, NVRAM, RAM, Trickle Charger 2B 8B 1.3V~5.5V HH:MM:SS YY-MM-DD-dd 1μA @ 3V
DS1673E-5 DS1673E-5 Maxim Integrated 0.0000
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0.00000000 download Tube 2009 no Obsolete 1 (Unlimited) 20 EAR99 6.5mm Non-RoHS Compliant Contains Lead 3-CHANNEL, 8-BIT ADC 20-TSSOP (0.173, 4.40mm Width) 3-Wire Serial not_compliant 4.4mm Surface Mount 0°C~70°C MOS 1.1mm 8542.39.00.01 Portable System Controller e0 Tin/Lead (Sn/Pb) DUAL 240 5V 20 DS1673 20 YES 0.65mm R-PDSO-G20 Timer or RTC Not Qualified 5V Alarm, Leap Year, Watchdog Timer 4.5V~5.5V HH:MM:SS (12/24 hr) 1 0.032MHz SECONDS Y YES SERIAL, 3-WIRE YY-MM-DD-dd 300μA @ 5V 2.5V~3.7V
AB0813-T3 AB0813-T3 Abracon LLC 0.0000
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0.00000000 download Surface Mount Tape & Reel (TR) 2012 yes Obsolete 1 (Unlimited) 16 EAR99 3mm RoHS Compliant Lead Free No 16-VFQFN Exposed Pad SPI 3mm Surface Mount -40°C~85°C CMOS 0.9mm 8542.39.00.01 Clock/Calendar QUAD 260 1.8V 30 0.5mm S-XQCC-N16 Alarm, Leap Year, SRAM, Trickle-Charger Clock 1.7V~3.6V HH:MM:SS:hh 0.032MHz I2C; SERIAL, 4-WIRE/3-WIRE 64 B 1 YY-MM-DD-dd 0.17μA~0.22μA @ 1.8V~3V 1.5V~3.6V
RV-3049-C2-32.768KHZ-OPTION-A-TA-QC RV-3049-C2-32.768KHZ-OPTION-A-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
MCP7940MT-I/MS MCP7940MT-I/MS Microchip Technology 0.0000
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0.00000000 download 7 Weeks Surface Mount Tape & Reel (TR) 2007 Active 1 (Unlimited) 8 EAR99 3mm ROHS3 Compliant No 8 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) I2C, 2-Wire Serial 3mm Surface Mount -40°C~85°C CMOS 1.1mm Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 260 2.5V 40 MCP7940M 0.65mm Timer or RTC 2/5V Alarm, Leap Year, Square Wave Output, SRAM Clock 64B 1.8V~5.5V HH:MM:SS (12/24 hr) SECONDS Y NO I2C 1 YY-MM-DD-dd 1μA @ 5.5V
X1205S8T1 X1205S8T1 Intersil 0.0000
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0.00000000
PCF8564AUG/12HB/1V PCF8564AUG/12HB/1V NXP Semiconductors 0.0000
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0.00000000 7 Weeks Tray 2008 Active Not Applicable 9 ROHS3 Compliant Die I2C, 2-Wire Serial Surface Mount -40°C~85°C CMOS 8542.39.00.01 Clock/Calendar UPPER NOT SPECIFIED 2V NOT SPECIFIED 9 YES R-XUUC-N9 Alarm, Leap Year, Square Wave Output, Watchdog Timer 1V~5.5V HH:MM:SS (24 hr) 0.032MHz I2C 1 YY-MM-DD-dd 0.6μA~0.75μA @ 2V~5V
DS1556W-120 DS1556W-120 Rochester Electronics 0.0000
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0.00000000 download Tube no Obsolete 3 (168 Hours) 32 43.053mm Non-RoHS Compliant 32-DIP Module (0.600, 15.24mm) Parallel unknown 15.24mm Through Hole 0°C~70°C 10.922mm Clock/Calendar e0 TIN LEAD DUAL 240 3.3V NOT SPECIFIED 32 NO 2.54mm R-PDMA-P32 COMMERCIAL Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 128KB 2.97V~3.63V HH:MM:SS (24 hr) 8 0.032MHz YY-MM-DD-dd 4mA @ 3.3V
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