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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 Thickness 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) Voltage Number of Outputs Feature Supplier Device Package Number of Terminals Source Url Status Check Date Logic Function Memory Size Function Number of Bits 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
X1227S8I X1227S8I Rochester Electronics 0.0000
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0.00000000 download Tube no Obsolete 1 (Unlimited) 8 4.9022mm Non-RoHS Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 3.9116mm Surface Mount -40°C~85°C CMOS 1.7272mm Clock/Calendar e0 TIN LEAD DUAL 240 5V 40 8 YES 1.27mm R-PDSO-G8 COMMERCIAL Alarm, Leap Year, Supervisor, Watchdog Timer 4.5V~5.5V HH:MM:SS (12/24 hr) 0.032MHz I2C 1 YY-MM-DD-dd 10μA~20μA @ 2.7V~5V 1.8V~5.5V
1338-18DCGI8 1338-18DCGI8 Renesas Electronics America 0.0000
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0.00000000 download 12 Weeks Tape & Reel (TR) 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 56B 1.8V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 2μA @ 3.3V 1.3V~3.7V
DS1558W DS1558W Rochester Electronics, LLC 0.0000
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0.00000000 download Tray no Obsolete 3 (168 Hours) 48 7mm Non-RoHS Compliant 48-LQFP Parallel unknown 7mm Surface Mount -40°C~85°C 1.2mm Clock/Calendar e0 TIN LEAD QUAD 245 3.3V NOT SPECIFIED 48 YES 0.5mm S-PQFP-G48 COMMERCIAL Alarm, Leap Year, Watchdog Timer, Y2K 2.97V~3.63V HH:MM:SS (24 hr) 8 0.032MHz YY-MM-DD-dd 2mA @ 3.3V 2.5V~3.7V
RX8130CE BX RX8130CE BX EPSON 0.0000
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0.00000000
ISL12027IBAZ ISL12027IBAZ 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 -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
ISL12059IBZ-T ISL12059IBZ-T Electric Imp Inc. 0.0000
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0.00000000 download Surface Mount Tape & Reel 2009 Active 85°C -40°C 3.3V RoHS Compliant No 8 SOIC 2-Wire, I2C, Serial 3.6V 1.8V Clock HH:MM:SS YY-MM-DD-dd
DS1337U+ DS1337U+ Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Tube 2006 yes Active 1 (Unlimited) 8 EAR99 3mm ROHS3 Compliant Contains Lead 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) DUAL 260 3.3V 30 DS1337 8 YES 0.65mm Timer or RTC Not Qualified 1.5/5V 2 Alarm, Leap Year, Square Wave Output 1.8V~5.5V HH:MM:SS (12/24 hr) SECONDS Y YES I2C 1 YY-MM-DD-dd 0.6μA @ 1.3V~1.8V
MCP79520-I/MS MCP79520-I/MS Microchip Technology 0.0000
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0.00000000 download 6 Weeks Tube 2003 Active 1 (Unlimited) 10 EAR99 3mm ROHS3 Compliant Lead Free No 10 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) SPI 950μm 3mm Surface Mount -40°C~85°C CMOS 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 260 3V 40 MCP79520 YES 0.5mm Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID Clock 1.8V~3.6V HH:MM:SS:hh (12/24 hr) 5MHz 64 B YY-MM-DD-dd 1μA @ 1.8V~3.6V 1.3V~3.6V
RX8900CE UA0 RX8900CE UA0 Epson America, Inc 0.0000
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0.00000000 download Tape and Reel Active RoHS Compliant 10 Clock/Calendar/Alarm HH:MM:SS DW:DM:M:Y
1337GDCGI8 1337GDCGI8 Integrated Device Technology (IDT) 0.0000
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0.00000000 download Surface Mount Tape & Reel 2006 yes Discontinued 1 8 EAR99 85°C -40°C 3.3V 4.9mm RoHS Compliant Lead Free No 8 SOIC 2-Wire, I2C, Serial 3.9mm 1.5mm CMOS 1.75mm e3 Matte Tin (Sn) - annealed DUAL 260 3.3V 30 8 INDUSTRIAL 1.27mm Timer or RTC 2/5V 5.5V Clock 8 HH:MM:SS (12/24 hr) 0.4MHz SECONDS Y I2C 1 YY-MM-DD-dd
PT7C4372AZEEX PT7C4372AZEEX Diodes Incorporated 0.0000
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0.00000000 download Tape & Reel (TR) 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
X1228V14IZ X1228V14IZ Intersil Corporation 0.0000
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0.00000000 1 EAR99 5mm RoHS Compliant compliant 4.4mm CMOS 1.2mm 8542.39.00.01 e3 MATTE TIN DUAL GULL WING 260 5V 40 14 INDUSTRIAL YES 0.65mm R-PDSO-G14 2.7V 85°C -40°C Timer or RTC Not Qualified 3/5V 5.5V 14 TIMER, REAL TIME CLOCK 0.032MHz SECONDS Y YES I2C 1
DS1307Z DS1307Z Rochester Electronics 0.0000
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Min: 1

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0.00000000 download Tube no Obsolete 1 (Unlimited) 8 4.9mm Non-RoHS Compliant 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 3.9mm Surface Mount 0°C~70°C CMOS 1.75mm Clock/Calendar e0 TIN LEAD DUAL 245 5V NOT SPECIFIED 8 YES 1.27mm R-PDSO-G8 COMMERCIAL Leap Year, NVSRAM, Square Wave Output 56B 4.5V~5.5V HH:MM:SS (12/24 hr) 0.032MHz I2C 1 YY-MM-DD-dd 200μA @ 5V 2V~3.5V
PCF8523TK/1,118 PCF8523TK/1,118 NXP Semiconductors 0.0000
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0.00000000 download 7 Weeks Tape & Reel (TR) 2003 Active 1 (Unlimited) 8 4mm ROHS3 Compliant 8-VDFN Exposed Pad I2C, 2-Wire Serial 4mm Surface Mount -40°C~85°C CMOS 1mm 8542.39.00.01 Clock/Calendar DUAL NOT SPECIFIED 3V NOT SPECIFIED PCF8523 8 YES 0.8mm S-PDSO-N8 Timer or RTC Not Qualified 1.2/5.5V Alarm, Leap Year, Watchdog Timer 1.6V~5.5V HH:MM:SS (12/24 hr) 0.032MHz SECONDS Y YES I2C 1 YY-MM-DD-dd 0.5μA @ 2V~5V 1.8V~5.5V
DS1672-3+ DS1672-3+ Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Tube 2002 yes Obsolete 1 (Unlimited) 8 EAR99 9.375mm ROHS3 Compliant Lead Free 8-DIP (0.300, 7.62mm) I2C, 2-Wire Serial 7.62mm Through Hole -40°C~85°C CMOS 4.572mm 8473.30.11.80 Binary Counter e3 MATTE TIN DUAL 260 3V NOT SPECIFIED DS1672 8 NO 2.54mm R-PDIP-T8 Timers or RTCs Not Qualified 3V Trickle-Charger 2.7V~3.3V Binary 0.032MHz SECONDS N NO I2C 500μA @ 3.3V 1.3V~3.63V
DS1384FP-12 DS1384FP-12 Maxim Integrated 0.0000
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Min: 1

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0.00000000 download Surface Mount Tray 2000 Obsolete 3 (168 Hours) 44 EAR99 10mm Non-RoHS Compliant Contains Lead 44-QFP Parallel not_compliant 10mm Surface Mount 0°C~70°C CMOS 2.45mm 8542.39.00.01 Clock/Calendar e0 Tin/Lead (Sn/Pb) QUAD 240 5V 20 DS1384 44 0.8mm S-PQFP-G44 Timer or RTC Not Qualified 5V Alarm, Leap Year, Square Wave Output, Watchdog Timer Clock 50B 4.5V~5.5V HH:MM:SS:hh (12/24 hr) 8 0.032MHz 1/100SECOND Y YES 1 YY-MM-DD-dd 3mA @ 5V 2.4V~4V
DS1307ZN+T&R DS1307ZN+T&R Maxim Integrated 0.0000
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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2011 Active 1 (Unlimited) 85°C -40°C 5V ROHS3 Compliant Lead Free Tin No 8 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 5.5V Unknown 4.5V Surface Mount 540.001716mg -40°C~85°C Clock/Calendar DS1307 7V Leap Year, NVSRAM, Square Wave Output 8-SOIC Clock 56B 4.5V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 200μA @ 5V 2V~3.5V
RV-3049-C3-32.768KHZ-OPTION-B-TB-QA RV-3049-C3-32.768KHZ-OPTION-B-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 SPI, 4-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
DS1647-120 DS1647-120 Maxim Integrated 0.0000
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0.00000000 download Tube 2005 Obsolete 1 (Unlimited) 32 EAR99 43.053mm Non-RoHS Compliant Contains Lead, 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 e0 Tin/Lead (Sn/Pb) DUAL 240 5V NOT SPECIFIED DS1647 32 NO 2.54mm Not Qualified Leap Year, NVSRAM 512KB 4.5V~5.5V HH:MM:SS (24 hr) 8 YY-MM-DD-dd 4mA @ 4.5 V~5.5 V
DS1302ZT DS1302ZT Maxim Integrated 0.0000
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0.00000000 download yes 1 8 EAR99 4.9mm RoHS Compliant Contains Lead BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA compliant 3.9mm CMOS 1.75mm 8542.39.00.01 e3 Matte Tin (Sn) DUAL GULL WING 260 3.3V NOT SPECIFIED 8 COMMERCIAL YES 1.27mm R-PDSO-G8 2V 70°C Timer or RTC Not Qualified 3/5V 5.5V TIMER, REAL TIME CLOCK 0.032MHz SECONDS N YES SERIAL, 3-WIRE
RX6110SA:B3PURESN RX6110SA:B3PURESN EPSON 0.0000
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0.00000000
R2045D-E2-F R2045D-E2-F Ricoh Electronic Devices Company 0.0000
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0.00000000 download Obsolete RoHS Compliant 22 Clock/Calendar/Alarm/Interrupt HH:MM:SS DW:DM:M:Y
MCP79522-I/MS MCP79522-I/MS Microchip Technology 0.0000
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Min: 1

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0.00000000 download 5 Weeks Tube 2012 Active 1 (Unlimited) 10 EAR99 3mm ROHS3 Compliant Lead Free No 10 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) SPI 950μm 3mm Surface Mount -40°C~85°C CMOS 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 260 3V 40 MCP79522 YES 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
DS1315S-33 DS1315S-33 Maxim Integrated 0.0000
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0.00000000 download Tube 2007 Obsolete 1 (Unlimited) 16 EAR99 10.335mm Non-RoHS Compliant Contains Lead 16-SOIC (0.295, 7.50mm Width) Parallel not_compliant 7.51mm Surface Mount 0°C~70°C CMOS 2.68mm 8542.39.00.01 Phantom Time Chip e0 Tin/Lead (Sn/Pb) DUAL 245 3.3V NOT SPECIFIED DS1315 16 YES 1.27mm R-PDSO-G16 Timer or RTC Not Qualified 3.3V Leap Year 3V~3.6V HH:MM:SS:hh (12/24 hr) 0.032MHz 1/100SECOND N YES SERIAL, FIXED PROTOCOL YY-MM-DD-dd 1.1mA @ 3.3V 2.5V~3.7V
PCA8565AU/5BB/1,01 PCA8565AU/5BB/1,01 NXP Semiconductors 0.0000
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Min: 1

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0.00000000 download 7 Weeks Bulk 2001 Automotive, AEC-Q100 Active Not Applicable 9 ROHS3 Compliant Die I2C, 2-Wire Serial Surface Mount -40°C~125°C CMOS Clock/Calendar UPPER NOT SPECIFIED 2V NOT SPECIFIED YES R-XUUC-N9 Alarm, Leap Year, Square Wave Output, Watchdog Timer 2013-06-14 00:00:00 1.8V~5.5V HH:MM:SS (24 hr) I2C 1 YY-MM-DD-dd 0.9μA~1.8μA @ 2V~5V
PT7C4307WE PT7C4307WE Diodes Incorporated 0.0000
RFQ

Min: 1

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0.00000000 download 9 Weeks Surface Mount Tube Last Time Buy 3 (168 Hours) 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 DUAL 260 5V 40 1.27mm R-PDSO-G8 Timer or RTC Not Qualified 5V Alarm, Leap Year, NVSRAM, Square Wave Output 56B 4.5V~5.5V HH:MM:SS (12/24 hr) SECONDS Y NO I2C 1 YY-MM-DD-dd 1.5mA @ 4.5V~5.5V 2V~3.5V
BQ3285LSS BQ3285LSS Rochester Electronics 0.0000
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0.00000000 Tube yes Obsolete 3 (168 Hours) 24 Non-RoHS Compliant 24-SSOP (0.154, 3.90mm Width) Parallel Surface Mount CMOS Clock/Calendar e0 TIN LEAD DUAL NOT SPECIFIED 3.15V NOT SPECIFIED COMMERCIAL YES R-PDSO-G24 70°C COMMERCIAL Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 242B 2.7V~3.6V HH:MM:SS (12/24 hr) 8 1 YY-MM-DD-dd 2.4V~4V
X1227S8 X1227S8 Intersil (Renesas Electronics America) 0.0000
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0.00000000 download Surface Mount 2005 8 EAR99 70°C 0°C 4.89mm RoHS Compliant Contains Lead SOIC 2-Wire, I2C, Serial 3.9mm CMOS 1.75mm 8542.39.00.01 e0 Tin/Lead (Sn/Pb) DUAL 5V 8 COMMERCIAL 1.27mm R-PDSO-G8 2.7V Timer or RTC Not Qualified 3/5V 5.5V 3.9kB HH:MM:SS (12/24 hr) TIMER, REAL TIME CLOCK 0.032MHz SECONDS Y YES I2C YY-MM-DD-dd
ISL12029IB27Z-T ISL12029IB27Z-T Renesas Electronics America 0.0000
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0.00000000 download Cut Tape (CT) 2005 Obsolete 2 (1 Year) ROHS3 Compliant 14-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar ISL12029 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
DS1556P-70+ DS1556P-70+ Maxim Integrated 0.0000
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0.00000000 download 10 Weeks Tray 2003 yes Active 3 (168 Hours) 34 EAR99 ROHS3 Compliant 34-PowerCap™ Module Parallel not_compliant Surface Mount 0°C~70°C CMOS 8473.30.11.80 Clock/Calendar e3 Matte Tin (Sn) DUAL NOT SPECIFIED 5V NOT SPECIFIED DS1556 34 YES R-XDMA-U34 Timer or RTC Not Qualified 5V Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 128KB 4.5V~5.5V HH:MM:SS (24 hr) 8 0.032MHz SECONDS Y NO YY-MM-DD-dd 6mA @ 5V 3V
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