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
X1227S8 Renesas Electronics America Inc. IC RTC CLK/CALENDAR I2C 8-SOIC 0 $0.00
BQ4852YMC-85 Texas Instruments IC RTC CLK/CALENDAR PAR 36-DIP 0 $0.00
BQ4850YMA-85 Texas Instruments IC RTC CLK/CALENDAR PAR 32-DIP 0 $0.00
BQ4847YMT Texas Instruments IC RTC CLK/CALENDAR PAR 28-DIP 0 $0.00
BQ4847MT Texas Instruments IC RTC CLK/CALENDAR PAR 28-DIP 0 $0.00
BQ4845YS-A4N Texas Instruments IC RTC CLK/CALENDAR PAR 28-SOIC 0 $0.00
BQ4845YS-A4 Texas Instruments IC RTC CLK/CALENDAR PAR 28-SOIC 0 $0.00
BQ4845S-A4N Texas Instruments IC RTC CLK/CALENDAR PAR 28-SOIC 0 $0.00
BQ4845S-A4 Texas Instruments IC RTC CLK/CALENDAR PAR 28-SOIC 0 $0.00
BQ4845P-A4 Texas Instruments IC RTC CLK/CALENDAR PAR 28-DIP 0 $0.00