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-A4G4 Texas Instruments IC RTC CLK/CALENDAR PAR 28-SOIC 0 $0.00
BQ4845YP-A4E3 Texas Instruments IC RTC CLK/CALENDAR PAR 28-DIP 0 $0.00
BQ4845S-A4NG4 Texas Instruments IC RTC CLK/CALENDAR PAR 28-SOIC 0 $0.00
X1288V14Z Renesas Electronics America Inc. IC RTC CLK/CALENDAR I2C 14-TSSOP 0 $0.00
BQ4845S-A4G4 Texas Instruments IC RTC CLK/CALENDAR PAR 28-SOIC 0 $0.00
BQ4285S-SB2G4 Texas Instruments IC RTC CLK/CALENDAR PAR 24-SOIC 0 $0.00
BQ3285S-SB2TRG4 Texas Instruments IC RTC CLK/CALENDAR PAR 24-SOIC 0 $0.00
BQ3285P-SB2E3 Texas Instruments IC RTC CLK/CALENDAR PAR 24-DIP 0 $0.00
M48T512V-85PM1 STMicroelectronics IC RTC CLK/CALENDAR PAR 32-DIP 0 $0.00
RTC-4574SA:B ROHS Epson IC RTC CLK/CALENDAR SER 14-SOP 0 $0.00