LTC693 - Microprocessor Supervisory Circuits
The LTC®692/LTC693 provide complete power supply monitoring and battery control functions for microprocessor reset, battery backup, CMOS RAM write protection, power failure warning and watchdog timing.
A precise internal voltage reference and comparator circuit monitor the power supply line.
When an
LTC693 Features
* n Guaranteed Reset Assertion at VCC = 1V n 1.5mA Maximum Supply Current n Fast (35ns Maximum) Onboard Gating of RAM Chip Enable Signals n 4.40V Precision Voltage Monitor n Power OK/Reset Time Delay: 200ms or Adjustable n Minimum External Component Count n 1μA Maximum Standby Current n Voltage Monito
