GENERAL DESCRIPTION

The ADM696/ADM697 supervisory circuits offer 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 warning.

FEATURES

Superior Upgrade for MAX696/MAX697

Specified Over Temperature

Adjustable Low Line Voltage Monitor

Power OK/Reset Time Delay

Reset Assertion Down to 1 V VCC

Watchdog Timer—100 ms, 1.6 s, or Adjustable

Low Switch On Resistance

1.5 Ω Normal, 20 Ω in Backup

600 nA Standby Current

Automatic Battery Backup Switching (ADM696)

Fast On-Board Gating of Chip Enable Signals (ADM697)

Voltage Monitor for Power Fail or Low Battery Warning

APPLICATIONS

Microprocessor Systems

Computers

Controllers

Intelligent Instruments

Automotive Systems

Critical mP Power Monitoring