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
DS32C35-33IND# Maxim Integrated IC RTC CLK/CALENDAR I2C 20-SOIC 0 $0.00
DS32C35-33# Maxim Integrated IC RTC CLK/CALENDAR I2C 20-SOIC 0 $0.00
DS1642-85+ Maxim Integrated IC RTC CLK/CALENDAR PAR 24-EDIP 0 $0.00
DS1553-85+ Maxim Integrated IC RTC CLK/CALENDAR PAR 28-EDIP 0 $0.00
ISL12030IBZ-T Renesas Electronics America Inc. IC RTC CLK/CALENDAR I2C 8-SOIC 0 $0.00
ISL12032IVZ-T Renesas Electronics America Inc. IC RTC EVENT REC I2C 14-TSSOP 0 $0.00
ISL12028IVZ Renesas Electronics America Inc. IC RTC CLK/CALENDAR I2C 14-TSSOP 0 $0.00
ISL12027IV27AZ Renesas Electronics America Inc. IC RTC CLK/CALENDAR I2C 8-TSSOP 0 $0.00
ISL12028IVAZ Renesas Electronics America Inc. IC RTC CLK/CALENDAR I2C 14-TSSOP 0 $0.00
ISL12027IVZ-T Renesas Electronics America Inc. IC RTC CLK/CALENDAR I2C 8-TSSOP 0 $0.00