ADM800L - Analog Devices

ADM800L Microprocessor Supervisory Circuits

POWER FAIL INPUT (PFI) 1.25V The ADM691A/ADM693A/ADM800L/ADM800M 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 warning. The fami.

Features

Low Power Consumption: Precision Voltage Monitor ؎2% Tolerance on ADM800L/M Reset Time Delay—200 ms, or Adjustable 1 ␮ A Standby Current Automatic Battery Backup Power Switching Fast Onboard Gating of Chip Enable Signals Also Available in TSSOP Package (ADM691A) APPLICATIONS Microprocessor Systems Computers Controllers Intelligent Instruments Automotive Systems Critical ␮P Power Monitoring Microprocessor Supervisory Circuits ADM691A/ADM693A/ADM800L/M FUNCTIONAL BLOCK DIAGRAM BATT ON 4.65V1 VCC VOUT VBATT CHIP ENABLE OUTPUT CONTROL CEIN CEOUT LOW LINE OSC IN OSC SEL RESET & WATCHDOG TIMEBASE.