GENERAL DESCRIPTION
The ADM690–ADM695 family of supervisory circuits offers complete
single chip solutions for power supply monitoring and battery
control functions in microprocessor systems. These functions
include µP reset, backup battery switchover, watchdog timer, CMOS
RAM write protection, and power failure warn ing. The complete
family provides a variety of configurations to satisfy most
microprocessor system requirements.
FEATURES
Superior Upgrade for MAX690–MAX695
Specified Over Temperature
Low Power Consumption (5 mW)
Precision Voltage Monitor
Reset Assertion Down to 1 V VCC
Low Switch On-Resistance 1.5 V Normal, 20 Ω in Backup
High Current Drive (100 mA)
Watchdog Timer—100 ms, 1.6 s, or Adjustable
600 nA Standby Current
Automatic Battery Backup Power Switching
Extremely Fast Gating of Chip Enable Signals (5 ns)
Voltage Monitor for Power Fail
APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Automotive Systems
