V3023 - Very Low Power 8-Bit 32-kHz RTC Module

Description

The V3023 is a low power CMOS real time clock with a built in crystal.

Standby current is typically 1.2 µA and the access time is 50 ns.

The interface is 8 bits with multiplexed address and data bus.

Features

•  Built-in crystal with digital trimming and temperature compensation facilities  Can be synchronised to 50 Hz or nearest s/min  50 ns access time with 50 pF load capacitance  Standby on power down typically 1.2 µA  Universal interface compatible with both Intel and Motorola  Simple 8 bit interface with no delays or busy flags  16 bytes of user RAM  Power fail input disables during power up / down of reset  Bus can be in tri-state in power fail mode  Wide voltage range: 2.0 V to 5.5 V .