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LTC694-3.3 - 3.3V Microprocessor Supervisory Circuits

Description

The LTC®694-3.3/LTC695-3.3 provide complete 3.3V power supply monitoring and battery control functions.

These include power-on reset, battery back-up, RAM write protection, power failure warning and watchdog timing.

Features

  • n Guaranteed Reset Assertion at VCC = 1V n Pin Compatible with LTC694/LTC695 for 3.3V Systems n 200μA Typical Supply Current n Fast (30ns Typ) Onboard Gating of RAM Chip Enable Signals n SO-8 and S16 Packages n 2.90V Precision Voltage Monitor n Power OK/Reset Time Delay: 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.

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Full PDF Text Transcription

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LTC694-3.3/LTC695-3.3 3.3V Microprocessor Supervisory Circuits FEATURES n Guaranteed Reset Assertion at VCC = 1V n Pin Compatible with LTC694/LTC695 for 3.3V Systems n 200μA Typical Supply Current n Fast (30ns Typ) Onboard Gating of RAM Chip Enable Signals n SO-8 and S16 Packages n 2.90V Precision Voltage Monitor n Power OK/Reset Time Delay: 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 APPLICATIONS n 3.
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