Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Part Status Type Series Mount Mounting Type Operating Temperature Packaging Moisture Sensitivity Level (MSL) Termination Max Operating Temperature Min Operating Temperature Technology Frequency Height Seated (Max) RoHS Status Published Datasheet Package / Case Length Height Width Number of Terminations Factory Lead Time Weight REACH SVHC Max Supply Voltage Min Supply Voltage Number of Pins Interface Lifecycle Status Pbfree Code ECCN Code Additional Feature Radiation Hardening Reach Compliance Code HTS Code Number of Functions JESD-609 Code Feature Terminal Finish Surface Mount Voltage - Supply Terminal Position Terminal Form Peak Reflow Temperature (Cel) Supply Voltage Terminal Pitch Base Part Number Pin Count Temperature Grade Operating Temperature (Max) Supply Voltage-Max (Vsup) Supply Voltage-Min (Vsup) Time@Peak Reflow Temperature-Max (s) Subcategory Power Supplies Qualification Status JESD-30 Code Supplier Device Package Memory Size Logic Function Number of Outputs uPs/uCs/Peripheral ICs Type Number of Timers Clock Frequency Time-Min External Data Bus Width Time Format Interrupt Capability Volatile Information Access Method Date Format Current - Timekeeping (Max) Voltage - Supply, Battery
AM0815AQ AM0815AQ Ambiq Micro, Inc.
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) 85°C -40°C 32.768kHz RoHS Compliant /files/ambiqmicroinc-am0815aq-datasheets-2599.pdf 16-VFQFN Exposed Pad 900μm 3.6V 1.5V SPI Alarm, Leap Year, Square Wave Output, Watchdog Timer 1.5V~3.6V 16-QFN (3x3) 256B 2 HH:MM:SS:hh YY-MM-DD-dd 1.4V~3.6V
CBC92141C-Q3-TR3 CBC92141C-Q3-TR3 Cymbet Corporation
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) RoHS Compliant /files/cymbetcorporation-cbc92132cq3tr3-datasheets-2687.pdf 16-UFQFN Exposed Pad 9 Weeks I2C Alarm, Backup Supply Charger, Leap Year, RAM 2.5V~5.5V 64B HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 60nA @ 2.5V~5.5V 4.1V
MCP7940MT-I/STVAO MCP7940MT-I/STVAO Microchip Technology
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0 0x0x0 download Clock/Calendar Automotive, AEC-Q100 Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) CMOS 1.2mm /files/microchiptechnology-mcp7940mtistvao-datasheets-2669.pdf 8-TSSOP (0.173, 4.40mm Width) 4.4mm 3mm 8 I2C, 2-Wire Serial compliant Alarm, Leap Year, Square Wave Output, SRAM YES 1.8V~5.5V DUAL 2.5V 0.65mm R-PDSO-G8 64B 1 HH:MM:SS (12/24 hr) I2C YY-MM-DD-dd 1.2μA @ 3.3V
BQ3285LDSS BQ3285LDSS Rochester Electronics
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0 0x0x0 download Clock/Calendar Surface Mount 0°C~70°C Tube 2 (1 Year) Non-RoHS Compliant /files/rochesterelectronicsllc-bq3285ldss-datasheets-2709.pdf 24-SSOP (0.154, 3.90mm Width) Parallel Alarm, Daylight Savings, NVSRAM 2.7V~5.5V 24-SSOP/QSOP 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd 100μA @ 3V 2.4V~4V
PCF2129AT/1,518 PCF2129AT/1,518 NXP Semiconductors
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tape & Reel (TR) 3 (168 Hours) CMOS ROHS3 Compliant 2003 /files/nxpusainc-pcf2129at2518-datasheets-0379.pdf 20-SOIC (0.295, 7.50mm Width) 20 I2C, 2-Wire Serial 8542.39.00.01 e3 Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer MATTE TIN YES 1.8V~4.2V DUAL NOT SPECIFIED 1.27mm PCF2129 20 NOT SPECIFIED Timers or RTCs 2/4V Not Qualified R-PDSO-G20 SECONDS HH:MM:SS (12/24 hr) Y YES SERIAL, 4 WIRE/SPI YY-MM-DD-dd 1.5μA @ 3.3V 1.8V~4.2V
BQ4852YMC-85 BQ4852YMC-85 Rochester Electronics, LLC
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0 0x0x0 download 3 (168 Hours) Non-RoHS Compliant
PCF8564ACX9/1,005 PCF8564ACX9/1,005 NXP Semiconductors
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Bulk 1 (Unlimited) ROHS3 Compliant 2003 /files/nxpusainc-pcf8564acx91005-datasheets-2675.pdf Die I2C, 2-Wire Serial Alarm, Leap Year, Square Wave Output, Watchdog Timer 1V~5.5V PCF8564 HH:MM:SS (24 hr) YY-MM-DD-dd 0.6μA~0.75μA @ 2V~5V
DS1251WP-120 DS1251WP-120 Rochester Electronics
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0 0x0x0 download 3 (168 Hours) Non-RoHS Compliant /files/rochesterelectronicsllc-ds1245yp70-datasheets-4016.pdf 34 no USE DS9034PCX TO ORDER POWERCAP unknown e0 TIN LEAD YES DUAL J INVERTED NOT SPECIFIED 3.3V 34 COMMERCIAL 70°C 3.63V 2.97V NOT SPECIFIED COMMERCIAL R-XDMA-U34 TIMER, REAL TIME CLOCK 8 PARALLEL, DIRECT ADDRESS
AM1805AQ AM1805AQ Ambiq Micro, Inc.
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tape & Reel (TR) 3 (168 Hours) RoHS Compliant /files/ambiqmicroinc-am1815aq-datasheets-2604.pdf 16-VFQFN Exposed Pad I2C Alarm, Leap Year, RAM, Supervisor, Trickle Charger, Unique ID, Watchdog Timer 1.5V~3.6V 16-QFN (3x3) 256B HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 1.4V~3.6V
RV-8263-C7-32.768KHZ-20PPM-TA-QC RV-8263-C7-32.768KHZ-20PPM-TA-QC Micro Crystal
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0 0x0x0 download Clock/Calendar Automotive, AEC-Q200 Surface Mount -40°C~85°C TA Tape & Reel (TR) 1 (Unlimited) ROHS3 Compliant /files/microcrystalag-rv8263c732768khz20ppmtaqc-datasheets-2721.pdf 8-WCDFN 2 Weeks I2C Alarm, Leap Year, RAM Gold Flash (Au) 0.9V~5.5V 260 40 HH:MM:SS YY-MM-DD-dd 240nA @ 3V
PT7C4372AZEEX PT7C4372AZEEX Diodes Incorporated
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C TA Tape & Reel (TR) 1 (Unlimited) https://pdf.utmel.com/r/datasheets/diodesincorporated-pt7c4372azeex-datasheets-2681.pdf 8-WFDFN Exposed Pad I2C, 2-Wire Serial Alarm, Leap Year 1.8V~6V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.8μA @ 3V
PCF8583BS,518 PCF8583BS,518 NXP Semiconductors
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tape & Reel (TR) 3 (168 Hours) CMOS 1mm ROHS3 Compliant 1997 /files/nxpusainc-pcf8583bs518-datasheets-2728.pdf 20-VQFN Exposed Pad 5mm 5mm 20 I2C, 2-Wire Serial TIMEKEEPING CURRENT = 10UA; AUTO WORD INCREMENTING unknown 8542.39.00.01 e4 Alarm, NVSRAM, Square Wave Output NICKEL PALLADIUM GOLD YES 2.5V~6V QUAD 260 5V 0.65mm PCF8583 20 30 Timer or RTC 3/5V Not Qualified S-PQCC-N20 240B 0.1MHz 1/100SECOND 1 HH:MM:SS:hh (12/24 hr) Y YES I2C YY-MM-DD 10μA~50μA @ 1V~5V
RX-4045SA:AA RX-4045SA:AA EPSON
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0 0x0x0 download Clock/Calendar RX-4045SA Surface Mount Surface Mount -40°C~85°C 1 (Unlimited) SMD/SMT 85°C -40°C 32.768kHz ROHS3 Compliant /files/epson-rx4045saaa0-datasheets-2477.pdf 14-SOIC (0.197, 5.00mm Width) 5mm 3.2mm 10.1mm No SVHC 5.5V 1.7V 14 SPI Alarm, Leap Year 1.7V~5.5V 14-SOP 3 HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.2μA~1.8μA @ 3V~5V
ISL12029AIB27Z ISL12029AIB27Z Rochester Electronics
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tube 2 (1 Year) ROHS3 Compliant /files/rochesterelectronicsllc-isl12029aib27z-datasheets-2686.pdf 14-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Alarm, Leap Year, Supervisor, Watchdog Timer 2.7V~5.5V 14-SOIC HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
CBC92132C-Q3-TR3 CBC92132C-Q3-TR3 Cymbet Corporation
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) RoHS Compliant /files/cymbetcorporation-cbc92132cq3tr3-datasheets-2687.pdf 16-UFQFN Exposed Pad 9 Weeks I2C Alarm, Backup Supply Charger, Leap Year, RAM 2.5V~5.5V 64B HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 50nA @ 2.5V~5.5V 3.2V
MAX31342EWA+ MAX31342EWA+ Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C 1 (Unlimited) ROHS3 Compliant https://pdf.utmel.com/r/datasheets/maximintegrated-max31342ewa-datasheets-2690.pdf 8-WFBGA, WLBGA I2C Alarm, Leap Year, Square Wave Output 1.6V~3.6V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.33μA @ 3V
M41T01M6F M41T01M6F STMicroelectronics
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Cut Tape (CT) 1 (Unlimited) CMOS 1.75mm ROHS3 Compliant /files/stmicroelectronics-m41t01m6f-datasheets-2692.pdf 8-SOIC (0.154, 3.90mm Width) 4.9mm 3.9mm 8 10 Weeks 506.605978mg 8 I2C, 2-Wire Serial ACTIVE (Last Updated: 7 months ago) EAR99 No Leap Year 2V~5.5V DUAL 1.27mm M41T01 Clock HH:MM:SS SERIAL, 2-WIRE/I2C YY-MM-DD-dd 70μA @ 2V~5.5V 2.5V~3.5V
PCA8802UG/12KB/1,0 PCA8802UG/12KB/1,0 NXP Semiconductors
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0 0x0x0 download Binary Counter Surface Mount -40°C~85°C Bulk 1 (Unlimited) CMOS ROHS3 Compliant 2011 8-XFBGA, WLCSP I2C, 2-Wire Serial SEATED HGT_NOM; TERM PITCH-MAX 8542.39.00.01 1 Square Wave Output, Unique ID YES 1.6V~5.5V UPPER 3V PCA8802 5.5V 1.6V X-PUUC-N Binary 0.4μA @ 1.6V~5.5V
RTC-4543SA:B0 ROHS RTC-4543SA:B0 ROHS EPSON
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0 0x0x0 download Clock/Calendar RTC-4543SA Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) /files/epson-rtc4543sbb3rohs-datasheets-1600.pdf 14-SOIC (0.197, 5.00mm Width) 3-Wire Serial Leap Year 2.5V~5.5V 14-SOP HH:MM:SS (24 hr) YY-MM-DD-dd 1μA~3μA @ 2V~5V
PCF2127AT/1,512 PCF2127AT/1,512 NXP Semiconductors
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tube 3 (168 Hours) ROHS3 Compliant 2003 /files/nxpusainc-pcf2127at1512-datasheets-2610.pdf 20-SOIC (0.295, 7.50mm Width) I2C, 2-Wire Serial Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer 1.8V~4.2V PCF2127 20 512B HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.5μA @ 3.3V 1.8V~4.2V
PCF8523TS/1,112 PCF8523TS/1,112 NXP Semiconductors
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tube 1 (Unlimited) CMOS 1.1mm ROHS3 Compliant 2003 /files/nxpusainc-pcf8523t1118-datasheets-9850.pdf 14-TSSOP (0.173, 4.40mm Width) 5mm 4.4mm 14 7 Weeks I2C, 2-Wire Serial 8542.39.00.01 Alarm, Leap Year, Watchdog Timer YES 1.6V~5.5V DUAL NOT SPECIFIED 3V 0.65mm PCF8523 14 NOT SPECIFIED Timer or RTC 1.2/5.5V Not Qualified R-PDSO-G14 1 0.032MHz SECONDS HH:MM:SS (12/24 hr) Y YES I2C YY-MM-DD-dd 0.5μA @ 2V~5V 1.8V~5.5V
PCF8593T/1,112 PCF8593T/1,112 NXP Semiconductors
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tube 1 (Unlimited) CMOS 1.75mm ROHS3 Compliant 1997 /files/nxpusainc-pcf8593t1118-datasheets-0124.pdf 8-SOIC (0.154, 3.90mm Width) 4.9mm 3.9mm 8 I2C, 2-Wire Serial 8542.39.00.01 e4 Alarm, NVSRAM NICKEL PALLADIUM GOLD YES 2.5V~6V DUAL NOT SPECIFIED 3V 1.27mm PCF8593 8 NOT SPECIFIED Timer or RTC 3/5V Not Qualified R-PDSO-G8 8B 0.032MHz 1/100SECOND HH:MM:SS:hh (12/24 hr) Y YES I2C YY-MM-DD-dd 8μA~15μA @ 2V~5V
AM0805AQ AM0805AQ Ambiq Micro, Inc.
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tape & Reel (TR) 3 (168 Hours) RoHS Compliant /files/ambiqmicroinc-am0815aq-datasheets-2599.pdf 16-VFQFN Exposed Pad I2C Alarm, Leap Year, Square Wave Output, Watchdog Timer 1.5V~3.6V 16-QFN (3x3) 256B HH:MM:SS:hh YY-MM-DD-dd 1.4V~3.6V
1337ACSRI 1337ACSRI Renesas Electronics America
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C 1 (Unlimited) 16-SOIC (0.295, 7.50mm Width) I2C Alarm, Leap Year, Square Wave Output 1.8V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 0.6μA @ 1.3V~1.8V 1.3V~3.7V
PCF2123BS/1,512 PCF2123BS/1,512 NXP Semiconductors
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tube 3 (168 Hours) CMOS 1mm ROHS3 Compliant 2010 /files/nxpusainc-pcf2123ts1112-datasheets-9792.pdf 16-VFQFN Exposed Pad 3mm 3mm 16 SPI 8542.39.00.01 e3 Alarm, Leap Year, Square Wave Output, Watchdog Timer MATTE TIN YES 1.6V~5.5V QUAD NOT SPECIFIED 2V 0.5mm PCF2123 16 NOT SPECIFIED Timers or RTCs 1.1/5.5V Not Qualified S-PQCC-N16 1 0.032MHz SECONDS HH:MM:SS (12/24 hr) Y YES SERIAL, 3-WIRE YY-MM-DD-dd 0.33μA~0.38μA @ 2V~5V
PCA8802CX8/B/1,027 PCA8802CX8/B/1,027 NXP Semiconductors
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0 0x0x0 download Binary Counter -40°C~85°C Tape & Reel (TR) 1 (Unlimited) CMOS 0.29mm ROHS3 Compliant 2011 /files/nxpusainc-pca8802cx8b1027-datasheets-2626.pdf Die 1.19mm 1.14mm 8 I2C, 2-Wire Serial SEATED HGT_NOM; TERM PITCH-MAX 8542.31.00.01 1 Square Wave Output, Unique ID YES 1.6V~5.5V BOTTOM 3V 0.45mm PCA8802 5.5V 1.6V R-PBGA-B8 Binary 0.4μA @ 1.6V~5.5V
PT7C4337LEX PT7C4337LEX Diodes Incorporated
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C TA Tape & Reel (TR) 1 (Unlimited) CMOS 1.2mm RoHS Compliant 2014 /files/diodesincorporated-pt7c4337le-datasheets-2560.pdf 8-TSSOP (0.173, 4.40mm Width) 4.4mm 3mm 8 8 Weeks I2C, 2-Wire Serial EAR99 compliant 8542.39.00.01 Alarm, Leap Year, Square Wave Output YES 1.8V~5.5V DUAL 3.3V 0.65mm Timer or RTC 2/5V Not Qualified R-PDSO-G8 1 0.032MHz SECONDS HH:MM:SS (12/24 hr) Y YES I2C YY-MM-DD-dd 0.8μA @ 1.3V~1.8V
1339B-31DVGI 1339B-31DVGI Renesas Electronics America
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C 1 (Unlimited) 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) I2C Alarm, Leap Year, Square Wave Output, Trickle-Charger 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 200μA @ 3.63V~5.5V 1.3V~3.7V
PCF2129AT/1,512 PCF2129AT/1,512 NXP Semiconductors
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tube 3 (168 Hours) CMOS ROHS3 Compliant 2003 /files/nxpusainc-pcf2129at2518-datasheets-0379.pdf 20-SOIC (0.295, 7.50mm Width) 20 I2C, 2-Wire Serial 8542.39.00.01 e3 Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer MATTE TIN YES 1.8V~4.2V DUAL NOT SPECIFIED 1.27mm PCF2129 20 NOT SPECIFIED Timers or RTCs 2/4V Not Qualified R-PDSO-G20 SECONDS HH:MM:SS (12/24 hr) Y YES SERIAL, 4 WIRE/SPI YY-MM-DD-dd 1.5μA @ 3.3V 1.8V~4.2V
DS1315SN-33+T&R DS1315SN-33+T&R Maxim Integrated
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