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MAX7387 - System Monitoring Oscillator

General Description

The MAX7387/MAX7388 replace ceramic resonators, crystals, and supervisory functions for microcontrollers in 3.3V and 5V applications.

The MAX7387/MAX7388 provide a clock source together with integrated reset, watchdog, and power-fail functions.

Key Features

  • Robust Microcontroller Clock and Supervisor in a Single Package.
  • Integrated Reset, Watchdog, and Power-Fail Functions.
  • Pin-Programmable Watchdog Timeout.
  • +2.7V to +5.5V Operation.
  • Factory-Trimmed Oscillator.
  • Reset Valid Down to 1.1V Supply Voltage.
  • ±10mA Clock-Output Drive Current.
  • ±4% Total Accuracy for -40°C to +125°C.
  • ±2.75% Total Accuracy for 0°C to +85°C.
  • -40°C to +125°C Temperature Range.
  • 8-.

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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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19-3896; Rev 1; 1/06 www.DataSheet4U.com System Monitoring Oscillator with Watchdog and Power Fail General Description The MAX7387/MAX7388 replace ceramic resonators, crystals, and supervisory functions for microcontrollers in 3.3V and 5V applications. The MAX7387/MAX7388 provide a clock source together with integrated reset, watchdog, and power-fail functions. The watchdog timer is pin programmable and provides watchdog timeout values in the 16ms to 2048ms range. The power-fail output provides early warning of power failure. The power-fail threshold on the MAX7388 is internally set. The MAX7387 also provides a separate watchdog output that is used as a status indicator or to control safety-critical system elements.