Real Time Clocks

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Part Details Brand Functions Date Format Time Format User RAM Bus Type Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Supply Voltage Minimum Operating Supply Voltage Maximum Operating Temperature Minimum Operating Temperature
NXP PCF8563T/5, Real Time Clock (RTC) Serial-2 Wire, Serial-I2C, 8-Pin SOIC
  • RS Stock No. 865-2208
  • Brand NXP
  • Mfr. Part No. PCF8563T/5
NXP Calendar, Clock YY:MM:DD:dd HH:MM:SS - Serial-2 Wire, Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.45mm 5mm 4mm 1.45mm 5.5 V 1.8 V +85 °C -40 °C
Intersil ISL1208IB8Z, Real Time Clock (RTC), 2B RAM Serial-I2C, 8-Pin SOIC Intersil Alarm, Battery Backup, Calendar DW:DM:M:Y HH:MM:SS 2B Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V 2.7 V +85 °C -40 °C
Maxim DS12887+, Real Time Clock (RTC), 114B RAM Multiplexed, 24-Pin EDIP Maxim Alarm, Battery Backup, Calendar, Power Fail Binary, DW:DM:M:Y Binary, HH:MM:SS 114B Multiplexed Through Hole EDIP 24 34.04 x 18.8 x 9.4mm 34.04mm 18.8mm 9.4mm 5.5 V 4.5 V +70 °C 0 °C
Epson Q41404551000101, Real Time Clock (RTC) Serial, 14-Pin SOP
  • RS Stock No. 667-6271
  • Brand EPSON
  • Mfr. Part No. Q41404551000101
Epson Calendar, Timer - - - Serial Surface Mount SOP 14 5 x 10.1 x 3.2mm 5mm 10.1mm 3.2mm 5.5 V 1.7 V +85 °C -40 °C
Maxim DS1307Z+T&R, Real Time Clock (RTC), 56B RAM Serial-I2C, 8-Pin SOIC Maxim Battery Backup, Calendar, NV RAM YY:MM:DD HH:MM:SS 56B Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V 4.5 V +70 °C 0 °C
Intersil ISL1219IUZ, Real Time Clock (RTC), 2B RAM Serial-I2C, 10-Pin MSOP Intersil Alarm, Battery Backup, Calendar DW:DM:M:Y HH:MM:SS 2B Serial-I2C Surface Mount MSOP 10 3.05 x 3.05 x 0.95mm 3.05mm 3.05mm 0.95mm 5.5 V 2.7 V +85 °C -40 °C
STMicroelectronics M41T62LC6F, Real Time Clock (RTC), 16B RAM Serial, 8-Pin CLCC STMicroelectronics Alarm, Calendar, Real Time Clock, Square Wave Output, Watchdog Timer Binary, D:D:M:Y:C Binary, HH:MM:SS 16B Serial Surface Mount CLCC 8 3.3 x 1.6 x 0.8mm 3.3mm 1.6mm 0.8mm 4.4 V 1.3 V +85 °C -40 °C
Microchip MCP7940M-I/P, Real Time Clock (RTC), 64B RAM Serial-I2C, 8-Pin PDIP Microchip Alarm, Calendar DW:DM:M:Y HH:MM:SS 64B Serial-I2C Through Hole PDIP 8 10.16 x 7.11 x 4.95mm 10.16mm 7.11mm 4.95mm 5.5 V 1.8 V +85 °C -40 °C
STMicroelectronics M48T35Y-70PC1, Real Time Clock (RTC), 32768B RAM Parallel, 28-Pin PCDIP STMicroelectronics Battery Backup, Calendar, Chip Deselect, Switch Over, Write Protection DW:DM:M:Y HH:MM:SS 32768B Parallel Through Hole PCDIP 28 39.88 x 18.34 x 8.89mm 39.88mm 18.34mm 8.89mm 5.5 V 4.5 V +70 °C 0 °C
NXP PCF2123TS/1,112, Real Time Clock (RTC) Serial-SPI, 14-Pin TSSOP
  • RS Stock No. 727-5731
  • Brand NXP
  • Mfr. Part No. PCF2123TS/1,112
NXP Alarm, Calendar, Interrupt, Timer DW:DM:M:Y HH:MM:SS - Serial-SPI Surface Mount TSSOP 14 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 5.5 V 1.1 V +85 °C -40 °C
Intersil CDP68HC68T1MZ, Real Time Clock (RTC), 32B RAM Serial-SPI, 20-Pin SOIC W Intersil Alarm, Battery Backup, Calendar, Watchdog Timer DW:DM:M:Y HH:MM:SS 32B Serial-SPI Surface Mount SOIC W 20 13 x 7.6 x 2.35mm 13mm 7.6mm 2.35mm 6 V 3 V +85 °C -40 °C
Maxim DS3231MZ+, Real Time Clock (RTC) Serial-I2C, 8-Pin SOIC Maxim Battery Backup, Calendar Binary HH:MM:SS - Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V 2.3 V +85 °C -40 °C
Maxim DS1307Z+, Real Time Clock (RTC), 56B RAM Serial-I2C, 8-Pin SOIC Maxim Alarm, Battery Backup, Calendar, Power Fail DW:DM:M:Y HH:MM:SS 56B Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V 4.5 V +70 °C 0 °C
Microchip MCP79411-I/SN, Real Time Clock (RTC), 64B RAM Serial-I2C, 8-Pin SOIC Microchip Battery Backup, Calendar DW:DM:M:Y HH:MM:SS 64B Serial-I2C Surface Mount SOIC 8 4.9 x 3.9 x 1.5mm 4.9mm 3.9mm 1.5mm 5.5 V 1.8 V +85 °C -40 °C
Maxim DS1307ZN+, Real Time Clock (RTC), 56B RAM Serial-I2C, 8-Pin SOIC Maxim Calendar DW:DM:M:Y HH:MM:SS 56B Serial-I2C Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V 4.5 V +85 °C -40 °C
Microchip MCP7940M-I/SN, Real Time Clock (RTC), 64B RAM Serial-I2C, 8-Pin SOIC Microchip Calendar, NV SRAM DW:DM:M:Y HH:MM:SS 64B Serial-I2C Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm 5.5 V 1.8 V +85 °C -40 °C
STMicroelectronics M41T56M6F, Real Time Clock (RTC), 64B RAM Serial-I2C, 8-Pin SOIC STMicroelectronics Calendar, Chip Deselect, Switch Over DW:DM:M:Y HH:MM:SS 64B Serial-I2C Surface Mount SOIC 8 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm 5.5 V 4.5 V +85 °C -40 °C
Maxim DS1302+, Real Time Clock (RTC), 31B RAM Serial, 8-Pin PDIP Maxim Alarm, Battery Backup, Calendar DW:DM:M:Y HH:MM:SS 31B Serial Through Hole PDIP 8 9.91 x 7.87 x 4.45mm 9.91mm 7.87mm 4.45mm 5.5 V 2 V +70 °C 0 °C
Maxim DS1302N+, Real Time Clock (RTC), 31B RAM Serial-3 Wire, 8-Pin PDIP Maxim Trickle Charger DM:M:DW:Y SS:MM:HH 31B Serial-3 Wire Through Hole PDIP 8 9.91 x 7.87 x 4.45mm 9.91mm 7.87mm 4.45mm 5.5 V 2 V +85 °C -40 °C
Maxim DS12887A+, Real Time Clock (RTC), 114B RAM Multiplexed, 24-Pin EDIP Maxim Alarm, Calendar Binary, DW:DM:M:Y Binary, HH:MM:SS 114B Multiplexed Through Hole EDIP 24 34.04 x 18.29 x 9.4mm 34.04mm 18.29mm 9.4mm 5.5 V 4.5 V +70 °C 0 °C
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