All parts are available in 16-pin DIP and SO packages. The ADM691A is also available in a space-saving TSSOP package. The following functionality is provided:
Power-on reset output during power-up, power-down and brownout conditions. The circuitry remains operational with VCC as low as 1 V.
Battery backup switching for CMOS RAM, CMOS micro-processor or other low power logic.
A reset pulse if the optional watchdog timer has not been toggled within a specified time.
A 1.25 V threshold detector for power fail warning, low battery detection, or to monitor a power supply other than +5 V. 
Feature
 
 
 
  - Low Power Consumption
 
  - Precision Voltage Monitor
 
  - ±2% Tolerance on ADM800L/M
 
  - Reset Time Delay—200 ms, or Adjustable
 
  - 1 µA Standby Current
 
 
 
  - Automatic Battery Backup Power Switching
 
  - Fast Onboard Gating of Chip Enable Signals
 
  - Also Available in TSSOP Package (ADM691A)