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LTC690 - Microprocessor Supervisory Circuits

General Description

The LTC®690 family, LTC690/LTC691/LTC694/LTC695, provides complete power supply monitoring and battery control functions for microprocessor reset, battery backup, CMOS RAM write protection, power failure warning and watchdog timing.

Key Features

  • n Guaranteed Reset Assertion at VCC = 1V n 1.5mA Maximum Supply Current n Fast (35ns Max) Onboard Gating of RAM Chip Enable Signals n SO-8 and S16 Packaging n 4.65V Precision Voltage Monitor n Power OK/Reset Time Delay: 50ms, 200ms or Adjustable n Minimum External Component Count n 1µA Maximum Standby Current n Voltage Monitor for Power-Fail or Low Battery Warning n Thermal Limiting n Performance Specified Over Temperature n Superior Upgrade for MAX690 Family.

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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.

View original datasheet text
Features n Guaranteed Reset Assertion at VCC = 1V n 1.5mA Maximum Supply Current n Fast (35ns Max) Onboard Gating of RAM Chip Enable Signals n SO-8 and S16 Packaging n 4.