DALLASDS 12887

The Dallas Semiconductor DS12887 Real-Time Clock RTC with 114-Byte Battery-Backed RAM DIP-24 is an integrated real-time-clock module with built-in crystal, energy source and 114 bytes of nonvolatile RAM for timekeeping and data retention.

Technical description

The DS12887 integrates a calendar RTC and battery-backed RAM in a sealed 24-pin module. It tracks seconds, minutes, hours, day, date, month and year and supports automatic leap-year correction through 2099.

Indicative applications

System clocks, industrial controllers, legacy computers and repairs of equipment designed for a compatible Dallas RTC module.

Compatibility note

Before replacement, verify the exact suffix, package, pinout, supply rails and signal range used in the circuit. Variants of the same family can differ in electrical limits or temperature grade.