STMicroelectronics AN968 VMEbus Timekeeper Application Note

This document introduces the TIMEKEEPER family of products and provides detailed information on the M48T59, M48T58 and M48T559 devices.

Brand: STMicroelectronics
Category: Other Electronics
Document type: Application Note
Language: English
Pages: 3
File format: PDF
File size: 37 KB
Published: 06 August, 2012
Updated: 30 September, 2023
Models: M48T02, M48T18
MD5 checksum: 18C35F0A4F0791666D2FC6DC922E15FB
PDF: STMicroelectronics AN968 VMEbus Timekeeper Application Note PDF

About this manual

This application note details the requirements and usage of surface-mount TIMEKEEPER devices from STMicroelectronics designed for inclusion on VMEbus CPU boards. It illustrates a typical arrangement of a CPU module with a TIMEKEEPER device and outlines the specific functions supported by the TIMEKEEPER family.

What's inside

VMEbus TIMEKEEPER Requirements
TIMEKEEPER Family Functions
Recommended Devices for Design-in
SNAPHAT Package Features
Contact Information

Specifications

Supported Functions	General timekeeping, Time stamping, Event sequencing, Watchdog, RST reset signal, Non-volatile RAM
Recommended Models	M48T59, M48T58, M48T559
Package Type	SNAPHAT

Frequently asked questions

Which TIMEKEEPER devices are best suited for new VME board designs?

The M48T59, M48T58, and M48T559 are the models best suited for new 'design-in' boards.

What is the unique package feature of these TIMEKEEPER devices?

They are available in ST's revolutionary SNAPHAT package, which is a standard SOIC fitted with a SNAPHAT top containing the battery and crystal.

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