Datasheet Linear Technology LTC693CSW#PBF

LTC692/LTC693
Microprocessor
Supervisory Circuits
FEATURES DESCRIPTION Guaranteed Reset Assertion at VCC = 1V
1.5mA Maximum Supply Current
Fast (35ns Maximum) Onboard Gating of RAM Chip
Enable Signals
4.40V Precision Voltage Monitor
Power OK/Reset Time Delay: 200ms or Adjustable
Minimum External Component Count
1ОјA Maximum Standby Current
Voltage Monitor for Power-Fail or Low Battery
Warning
Thermal Limiting
Performance Specified Over Temperature
Superior Upgrade for MAX690 Family
SO8 and SO16 Packaging APPLICATIONS The LTCВ®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 out-of-tolerance condition
occurs, the reset outputs are forced to active states and the
chip enable output unconditionally write-protects external …