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RTCs

Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Datasheet Factory Lead Time Lifecycle Status 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 Thickness Mounting Type Weight Operating Temperature Technology 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) Output Current Feature Load Capacitance Supplier Device Package Logic Function Access Time Accuracy Memory Size RAM Size Number of Bits Supply Current-Max 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
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
DS1685S-3+T&R DS1685S-3+T&R Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2000 Active 1 (Unlimited) 70°C 0°C 3V ROHS3 Compliant Lead Free No 24 24-SOIC (0.295, 7.50mm Width) Parallel 3.7V 2.7V Surface Mount 0°C~70°C Clock/Calendar DS1685 Alarm, NVSRAM, Square Wave Output, Y2K 24-SOIC Clock 242B 2.7V~3.7V HH:MM:SS (12/24 hr) YY-MM-DD-dd 2mA @ 3V 2.5V~3.7V
ISL12025IBZ-T ISL12025IBZ-T Renesas Electronics America 0.0000
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0.00000000 download Tape & Reel (TR) 1999 Obsolete 1 (Unlimited) ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar ISL12025 8 Alarm, Leap Year, Supervisor, Unique ID, 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
RX-8571SA:B0PURESN RX-8571SA:B0PURESN EPSON 0.0000
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RX-4575LC:B3:PURESN RX-4575LC:B3:PURESN EPSON 0.0000
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DS1685E-3+T&R DS1685E-3+T&R Maxim Integrated 0.0000
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0.00000000 download 8 Weeks Surface Mount Tape & Reel (TR) 2000 Active 1 (Unlimited) 70°C 0°C 3V ROHS3 Compliant Lead Free No 24 24-TSSOP (0.173, 4.40mm Width) Parallel 3.7V 2.7V Surface Mount 0°C~70°C Clock/Calendar DS1685 Alarm, NVSRAM, Square Wave Output, Y2K 24-TSSOP Clock 242B 2.7V~3.7V HH:MM:SS (12/24 hr) YY-MM-DD-dd 2mA @ 3V 2.5V~3.7V
ISL12022MIBZR5421 ISL12022MIBZR5421 Intersil (Renesas Electronics America) 0.0000
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0.00000000 download 7 Weeks Surface Mount 2007 Active 1 20 EAR99 85°C -40°C 12.8mm RoHS Compliant No SOIC 2-Wire, I2C, Serial 5.5V 2.7V 7.5mm CMOS 2.65mm 8542.39.00.01 e3 Matte Tin (Sn) - annealed DUAL 260 3V 20 INDUSTRIAL 1.27mm R-PDSO-G20 Timer or RTC 3/5V Clock 0.0005 % 128B HH:MM:SS 0.032MHz SECONDS Y NO I2C YY-MM-DD-dd
M48T37Y-70MH1E M48T37Y-70MH1E STMicroelectronics 0.0000
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0.00000000 download Surface Mount Tube Timekeeper® Obsolete 3 (168 Hours) 44 EAR99 5V 18.49mm ROHS3 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 8542.39.00.01 Clock/Calendar DUAL 260 5V 10 M48T37 44 0.81mm Timer or RTC 5V Alarm, Leap Year, Watchdog Timer Clock 70 ns 32kB 8 4.5V~5.5V HH:MM:SS (24 hr) SECONDS Y NO YY-MM-DD-dd 3mA @ 4.5V~5.5V
MCP79412-I/MS MCP79412-I/MS Microchip Technology 0.0000
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0.00000000 download 7 Weeks Surface Mount Tube 2011 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 5V 40 MCP79412 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
BQ3285ES BQ3285ES Texas Instruments 0.0000
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0.00000000 ACTIVE (Last Updated: 3 days ago) Surface Mount Tube yes Obsolete 1 (Unlimited) 24 EAR99 5V 15.4mm ROHS3 Compliant Lead Free Gold No 24 24-SOIC (0.295, 7.50mm Width) Parallel 2.65mm 7.5mm 2.35mm Surface Mount 624.398247mg 0°C~70°C CMOS 8542.39.00.01 Clock/Calendar e4 DUAL 260 5V BQ3285 24 1.27mm Timer or RTC 5V Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Clock 242B 15mA 4.5V~5.5V HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y YES 1 YY-MM-DD-dd 300μA @ 5V 2.5V~4V
ISL12027IV27Z ISL12027IV27Z Intersil 0.0000
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DS1306E+T&R DS1306E+T&R Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Tape & Reel (TR) 2002 Active 1 (Unlimited) ROHS3 Compliant Lead Free 20-TSSOP (0.173, 4.40mm Width) SPI Surface Mount 0°C~70°C Clock/Calendar DS1306 Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger 20-TSSOP 96B 2V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 25.3μA~81μA @ 2V~5V 2V~5.5V
DS1747WP-120 DS1747WP-120 Maxim Integrated 0.0000
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0.00000000 download Tube 2005 yes Obsolete 3 (168 Hours) 34 EAR99 25.019mm Non-RoHS Compliant Contains Lead 34-PowerCap™ Module Parallel 23.495mm Surface Mount 0°C~70°C CMOS 2.3368mm 8473.30.11.80 Clock/Calendar e3 Matte Tin (Sn) DUAL 260 3.3V NOT SPECIFIED DS1747 34 YES 1.27mm R-XDMA-U34 Timer or RTC Not Qualified 3.3V Leap Year, NVSRAM, Y2K 10pF 512KB 2.97V~3.63V HH:MM:SS (24 hr) 8 0.032MHz SECONDS N NO YY-MM-DD-dd 2mA @ 3.3V 3V
PT7C4337UE PT7C4337UE Diodes Incorporated 0.0000
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0.00000000 download 9 Weeks Surface Mount Tube 2013 Last Time Buy 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 DUAL 3.3V 0.65mm Timer or RTC 2/5V Alarm, Leap Year, Square Wave Output Clock 1.8V~5.5V HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y YES I2C 1 YY-MM-DD-dd 0.8μA @ 1.3V~1.8V
DS1742W-150+ DS1742W-150+ Maxim Integrated 0.0000
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0.00000000 download Through Hole Tube 2012 yes Obsolete 1 (Unlimited) 24 EAR99 3.3V 38.1mm ROHS3 Compliant Lead Free Tin No 24 24-DIP Module (0.600, 15.24mm) Parallel 150GHz 10.67mm 18.29mm Through Hole 0°C~70°C CMOS 8473.30.11.80 Clock/Calendar e3 DUAL 3.3V DS1742 24 2.54mm Timer or RTC Leap Year, NVSRAM, Y2K Clock 150 ns 2KB 2.97V~3.63V HH:MM:SS (24 hr) SECONDS N NO YY-MM-DD-dd 2mA @ 3.3V
M41T94MH6E M41T94MH6E STMicroelectronics 0.0000
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0.00000000 download Surface Mount Tube Obsolete 3 (168 Hours) 28 EAR99 18.49mm ROHS3 Compliant Lead Free 28 28-SOP (0.350, 8.89mm Width) with SNAPHAT Sockets SPI Unknown 2.69mm 8.89mm Surface Mount -40°C~85°C CMOS 8542.39.00.01 Clock/Calendar e3 Tin (Sn) DUAL 260 3V 30 M41T94 28 1.27mm Timer or RTC Not Qualified 3/5V Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer Clock 44B 2.7V~5.5V HH:MM:SS:hh (24 hr) 0.032MHz 1/100SECOND Y SERIAL, 3-WIRE 44 B 1 YY-MM-DD-dd 1.4mA @ 2.7V~5.5V 2.5V~3.5V
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
DS17485-3 DS17485-3 Maxim Integrated 0.0000
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0.00000000 download Through Hole Tube 2010 Obsolete 1 (Unlimited) 24 EAR99 3V 31.75mm Non-RoHS Compliant Contains Lead No 24 24-DIP (0.600, 15.24mm) Parallel Through Hole 0°C~70°C CMOS 5.08mm 8542.39.00.01 Clock/Calendar e0 Tin/Lead (Sn/Pb) DUAL 240 3V 20 DS17485 24 2.54mm Timer or RTC 3V Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Clock 4KB 2.7V~3.7V HH:MM:SS (12/24 hr) 8 0.032MHz SECONDS Y YES 1 YY-MM-DD-dd 2mA @ 2.7V~3.7V 2.5V~3.7V
DS1248YP-70+ DS1248YP-70+ Maxim Integrated 0.0000
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0.00000000 download 15 Weeks Surface Mount Tray 2012 yes Active 3 (168 Hours) 34 3A991.B.2.A 5V 24.384mm ROHS3 Compliant Lead Free No 34 34-PowerCap™ Module Parallel 70GHz 23.495mm Surface Mount 0°C~70°C CMOS 6.858mm 8473.30.11.40 Phantom Time Chip e3 Matte Tin (Sn) DUAL 260 5V DS1248 34 1.27mm Timer or RTC 5V NVSRAM Clock 70 ns 128KB 4.5V~5.5V HH:MM:SS:hh (12/24 hr) 8 1/100SECOND N NO YY-MM-DD-dd 10mA @ 5V 3V
BQ4850YMA-85 BQ4850YMA-85 Rochester Electronics 0.0000
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0.00000000 download Tray Obsolete 3 (168 Hours) ROHS3 Compliant 32-DIP Module (0.61, 15.49mm) Parallel Through Hole 0°C~70°C Clock/Calendar Alarm 32-DIP Module (18.42x42.8) 4.5V~5.5V HH:MM:SS (24 hr) YY-MM-DD-dd 1mA @ 4.5V~5.5V
ISL12027IBZ ISL12027IBZ Rochester Electronics 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 -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
RX8804CE XB0 RX8804CE XB0 EPSON 0.0000
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0.00000000
ISL12025IBZ ISL12025IBZ Rochester Electronics 0.0000
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0.00000000 download Tube yes Obsolete 1 (Unlimited) 8 4.9mm ROHS3 Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 3.9mm Surface Mount -40°C~85°C 1.75mm Clock/Calendar e3 MATTE TIN DUAL 260 3.3V 40 8 YES 1.27mm R-PDSO-G8 COMMERCIAL Alarm, Leap Year, Supervisor, Unique ID, Watchdog Timer 2.7V~5.5V HH:MM:SS (12/24 hr) 0.032MHz I2C YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
DS14287 DS14287 Maxim Integrated 0.0000
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0.00000000 download Through Hole Tube 2005 no Obsolete 1 (Unlimited) 24 EAR99 31.75mm Non-RoHS Compliant Contains Lead 24 24-DIP Module (0.600, 15.24mm) Parallel not_compliant 32.8kHz Through Hole 0°C~70°C CMOS 5.08mm 8473.30.11.80 Clock/Calendar e0 Tin/Lead (Sn/Pb) DUAL 240 5V NOT SPECIFIED DS14287 24 2.54mm Timer or RTC Not Qualified 5V 4mA Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 6pF Clock 114B 4.5V~5.5V HH:MM:SS (12/24 hr) 8 SECONDS Y NO 1 YY-MM-DD-dd 0.5μA @ 4.5V~5.5V 2.5V~3.6V
DS17285SN-5 DS17285SN-5 Maxim Integrated 0.0000
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0.00000000 download Tube 2010 Obsolete 1 (Unlimited) 24 EAR99 17.9mm Non-RoHS Compliant Contains Lead 24 24-SOIC (0.295, 7.50mm Width) Parallel not_compliant 7.5mm Surface Mount -40°C~85°C CMOS 2.67mm 8542.39.00.01 Clock/Calendar e0 Tin/Lead (Sn/Pb) DUAL 245 5V NOT SPECIFIED DS17285 24 YES 1.27mm Timer or RTC Not Qualified 5V Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 2KB 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
X1228S14IZ-2.7 X1228S14IZ-2.7 Intersil (Renesas Electronics America) 0.0000
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0.00000000 Surface Mount 3 14 EAR99 85°C -40°C 8.6614mm RoHS Compliant Lead Free SOIC 2-Wire, I2C, Serial 3.9116mm CMOS 1.7272mm 8542.39.00.01 e3 MATTE TIN DUAL 260 5V 40 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
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
DS12R885S-33+ DS12R885S-33+ Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Surface Mount Tube 2003 yes Active 1 (Unlimited) 24 EAR99 3.3V 15.6mm ROHS3 Compliant Lead Free Tin No 24 24-SOIC (0.295, 7.50mm Width) Parallel Unknown 2.35mm 7.6mm Surface Mount -40°C~85°C CMOS 8473.30.11.80 Clock/Calendar e3 DUAL 260 3.3V DS12R885 24 1.27mm Timer or RTC Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger Clock 114B 2.97V~3.63V HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y NO 1 YY-MM-DD-dd 2mA @ 2.97V~3.63V 2V~3.05V
PCF8583BS,518 PCF8583BS,518 NXP Semiconductors 0.0000
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0.00000000 download Tape & Reel (TR) 1997 Obsolete 3 (168 Hours) 20 5mm ROHS3 Compliant TIMEKEEPING CURRENT = 10UA; AUTO WORD INCREMENTING 20-VQFN Exposed Pad I2C, 2-Wire Serial unknown 5mm Surface Mount -40°C~85°C CMOS 1mm 8542.39.00.01 Clock/Calendar e4 NICKEL PALLADIUM GOLD QUAD 260 5V 30 PCF8583 20 YES 0.65mm S-PQCC-N20 Timer or RTC Not Qualified 3/5V Alarm, NVSRAM, Square Wave Output 240B 2.5V~6V HH:MM:SS:hh (12/24 hr) 1 0.1MHz 1/100SECOND Y YES I2C YY-MM-DD 10μA~50μA @ 1V~5V
DS1746W-120IND+ DS1746W-120IND+ 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 15.24mm Through Hole -40°C~85°C CMOS 10.922mm 8473.30.11.80 Clock/Calendar e3 Matte Tin (Sn) DUAL NOT SPECIFIED 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
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