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
DS12CR887-33+ Maxim Integrated IC RTC CLK/CALENDAR PAR 24-EDIP 692 $10.57
DS1501WZN+ Maxim Integrated IC RTC CLK/CALENDAR PAR 28-SOIC 478 $10.69
DS12887+ Maxim Integrated IC RTC CLK/CALENDAR PAR 24-EDIP 1439 $10.11
DS12C887+ Maxim Integrated IC RTC CLK/CALENDAR PAR 24-EDIP 1405 $9.77
DS3231SN# Maxim Integrated IC RTC CLK/CALENDAR I2C 16-SOIC 3416 $9.77
DS3234SN# Maxim Integrated IC RTC CLK/CALENDAR SPI 20-SOIC 2266 $9.28
DS12887A+ Maxim Integrated IC RTC CLK/CALENDAR PAR 24-EDIP 543 $10.02
DS3232SN# Maxim Integrated IC RTC CLK/CALENDAR I2C 20-SOIC 1749 $9.14
DS3231S# Maxim Integrated IC RTC CLK/CALENDAR I2C 16-SOIC 667 $8.63
DS3232S# Maxim Integrated IC RTC CLK/CALENDAR I2C 20-SOIC 251 $8.47