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
BQ4845YS-A4NTR Texas Instruments IC RTC CLK/CALENDAR PAR 28-SOIC 0 $0.00
BQ4845YP-A4 Texas Instruments IC RTC CLK/CALENDAR PAR 28-DIP 0 $0.00
BQ4845S-A4NTRG4 Texas Instruments IC RTC CLK/CALENDAR PAR 28-SOIC 0 $0.00
BQ4845S-A4NTR Texas Instruments IC RTC CLK/CALENDAR PAR 28-SOIC 0 $0.00
BQ4802YPWRG4 Texas Instruments IC RTC CLK/CALENDAR PAR 28-TSSOP 0 $0.00
BQ4802YPWR Texas Instruments IC RTC CLK/CALENDAR PAR 28-TSSOP 0 $0.00
BQ3285S-SB2TR Texas Instruments IC RTC CLK/CALENDAR PAR 24-SOIC 0 $0.00
BQ4285S-SB2TR Texas Instruments IC RTC CLK/CALENDAR PAR 24-SOIC 0 $0.00
BQ3285LFSS-A1TRG4 Texas Instruments IC RTC CLK/CALENDAR PAR 24-QSOP 0 $0.00
BQ3285LFSS-A1TR Texas Instruments IC RTC CLK/CALENDAR PAR 24-QSOP 0 $0.00