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M41T0 - Serial real-time clock

General Description

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7 2.1 2-wire bus characteristics

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Key Features

  • Counters for seconds, minutes, hours, day, date, month, years, and century.
  • 32 KHz crystal oscillator integrating load capacitance (12.5 pF) providing exceptional oscillator stability and high crystal series resistance operation.
  • Oscillator stop detection monitors clock operation.
  • Serial interface supports I2C bus (400 kHz protocol).
  • Low standby current 0.9 µA (typ at 3 V).
  • 2.0 to 5.5 V clock operating voltage.
  • Special software programmable output.
  • Operat.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Features ■ Counters for seconds, minutes, hours, day, date, month, years, and century ■ 32 KHz crystal oscillator integrating load capacitance (12.5 pF) providing exceptional oscillator stability and high crystal series resistance operation ■ Oscillator stop detection monitors clock operation ■ Serial interface supports I2C bus (400 kHz protocol) ■ Low standby current 0.9 µA (typ at 3 V) ■ 2.0 to 5.5 V clock operating voltage ■ Special software programmable output ■ Operating temperature of –40 to 85 °C M41T0 Serial real-time clock 8 1 SO8 June 2011 Doc ID 9105 Rev 7 1/23 www.st.com 1 Contents Contents M41T0 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Operation . . . . . . . . . . . . . . . . . . . . . . . . .