Real Time Clocks

Real Time Clocks (RTCs) provide time and/or date information in almost any electronic device which needs to keep accurate time. The clock types are binary counter, clock/calendar/supervisor, elapsed time counter, phantom time chip, portable system controller, temperature recorder, time event recorder, and timer clock peripheral.  They contain memory sizes ranging from 2 B to 2 MB and have interface options of I2C, Parallel, Serial, SPI, 1-Wire, 2-Wire, 3-Wire, and 4-Wire.

Part Number Manufacturer Description Quantity Price Option
MCP795B11T-I/SL Microchip Technology IC RTC CLK/CALENDAR SPI 14-SOIC 0 $0.00
MCP795B22T-I/ST Microchip Technology IC RTC CLK/CALENDAR SPI 14-TSSOP 0 $0.00
MCP795B10T-I/ST Microchip Technology IC RTC CLK/CALENDAR SPI 14-TSSOP 0 $0.00
MCP795B22T-I/SL Microchip Technology IC RTC CLK/CALENDAR SPI 14-SOIC 0 $0.00
MCP795B10T-I/SL Microchip Technology IC RTC CLK/CALENDAR SPI 14-SOIC 0 $0.00
MCP795B21T-I/ST Microchip Technology IC RTC CLK/CALENDAR SPI 14-TSSOP 0 $0.00
MCP795B21T-I/SL Microchip Technology IC RTC CLK/CALENDAR SPI 14-SOIC 0 $0.00
DS1251WP-C02+ Maxim Integrated IC RTC PHANTOM PAR 34PWRCP 0 $0.00
DS1251WP-C01+ Maxim Integrated IC RTC PHANTOM PAR 34PWRCP 0 $0.00
DP8570AV Texas Instruments IC RTC TCP PAR 28-PLCC 0 $0.00