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CBC921 - Real-Time Clock/Calendar

Datasheet Summary

Description

The CBC921xx combines a real-time clock (RTC) with a backup battery charger and other power management

Features

  • Ultra-low power Real-Time Clock (RTC) with power-fail detect and battery management.
  • Low power timer and power manager extend run time in battery-powered systems.
  • Controls 4.1V rechargeable micro-batteries and 3.2V rechargeable coin cells and supercaps; no off-chip components required for battery charger.
  • Buck charge pump supply extends backup battery life: 20nA RTC using internal RC oscillator 50nA RTC using crystal oscillator.
  • Counters for.

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Datasheet preview – CBC921

Datasheet Details

Part number CBC921
Manufacturer Cymbet
File Size 668.50 KB
Description Real-Time Clock/Calendar
Datasheet download datasheet CBC921 Datasheet
Additional preview pages of the CBC921 datasheet.

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Full PDF Text Transcription

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Preliminary CBC921 PMRTC NPerwoduct! Data Brief Real-Time Clock/Calendar with Power Manager and Battery Charger Features • Ultra-low power Real-Time Clock (RTC) with power-fail detect and battery management • Low power timer and power manager extend run time in battery-powered systems • Controls 4.1V rechargeable micro-batteries and 3.2V rechargeable coin cells and supercaps; no off-chip components required for battery charger • Buck charge pump supply extends backup battery life: 20nA RTC using internal RC oscillator 50nA RTC using crystal oscillator • Counters for hundredths, seconds, minutes, hours, date, month, year, century, and weekdays based on a 32.
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