DS1682S+

Nonvolatile elapsed-time recorder with an event counter, programmable alarm, and integrated RC time base.

LTC6957IDD-2#PBF

Low-phase-noise clock buffer and logic converter providing two LVDS outputs.

PCF2127AT/2Y

Accurate real-time clock with an integrated temperature-compensated crystal oscillator, battery backup, and 512-byte RAM.

PCF8523T/1,118

Low-power real-time clock and calendar with an I2C interface and battery switchover.

PCF8523TK/1,118

Low-power real-time clock and calendar with an I2C interface and battery switchover.

PCF8563T/F4,118

Low-power real-time clock and calendar with a serial I2C interface.

PCF8593T/1,118

Real-time clock and calendar with an I2C interface and eight bytes of RAM.