The What, Why, When, Where and How of Real-Time Clocks (RTCs)

The What, Why, When, Where and How of Real-Time Clocks (RTCs)

Author's Contact Information

Abstract

Tiny real-time-clock (RTC) circuits provide low-cost, low-power, and effective time keeping, a simple but critical feature for today’s complex electronic systems. The following tutorial provides an overview of these circuits by answering some of the most common questions about this often forgotten but very necessary piece of electronic technology.