View max801l datasheet:

19-1086; Rev 0; 6/96 8-Pin µP Supervisory Circuits with ±1.5% Reset Accuracy _______________General Description ____________________________Features The MAX801/MAX808 microprocessor (µP) supervisory ¦ Precision Voltage Monitoring, ±1.5% Reset circuits monitor and control the activities of +5V µPs by Accuracy providing backup-battery switchover, low-line indica- ¦ 200ms Power-OK/Reset Time Delay tion, and µP reset. Additional features include a watch- ¦ RESET Output (MAX808) dog for the MAX801 and CMOS RAM write protection RESET and RESET Outputs (MAX801) for the MAX808. ¦ Watchdog Timer (MAX801) The MAX801/MAX808 offer a choice of reset-threshold voltage (denoted by suffix letter): 4.675V (L), 4.575V ¦ On-Board Gating of Chip-Enable Signals (MAX808): (N), and 4.425V (M). T