MAX801

PRODUCTION

8-Pin µP Supervisory Circuits with ±1.5% Reset Accuracy

1.5% Accurate Reset ICs with Battery-Backup

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • Precision Voltage Monitoring, ±1.5% Reset Accuracy
  • 200ms Power-OK/Reset Time Delay
  • Active-low RESET Output (MAX808)
  • RESET and active-low RESET Outputs (MAX801)
  • Watchdog Timer (MAX801)
  • On-Board Gating of Chip-Enable Signals (MAX808):
    • Memory Write-Cycle Completion
    • 3ns CE Gate Propagation Delay
  • 1µA Standby Current
  • Power Switching:
    • 250mA in VCC Mode
    • 20mA in Battery-Backup Mode
  • MaxCap™/SuperCap™ Compatible
  • Active-low RESET Guaranteed Valid to VCC = 1V
  • Low-Line Threshold 52mV Above Reset Threshold

The MAX801/MAX808 microprocessor (µP) supervisory circuits monitor and control the activities of +5V µPs by providing backup-battery switchover, low-line indication, and µP reset. Additional features include a watchdog for the MAX801 and CMOS RAM write protection for the MAX808.

The MAX801/MAX808 offer a choice of reset-threshold voltage (denoted by suffix letter): 4.675V (L), 4.575V (N), and 4.425V (M). These devices are available in 8-pin DIP and SO packages.

Applications

  • Computers: Desktop, Workstation, Server
  • Controllers
  • Critical µP Monitoring
  • Embedded Systems
  • Intelligent Instruments
  • Portable Battery-Powered Equipment
MAX801
8-Pin µP Supervisory Circuits with ±1.5% Reset Accuracy
MAX801L, MAX801M, MAX801N, MAX808L, MAX808M, MAX808N: Typical Operating Circuit
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Documentation

Data Sheet 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Supervisory Circuits & Reset ICs 4
MAX807
PRODUCTION Full-Featured µP Supervisory Circuit with ±1.5% Reset Accuracy
MAX814
PRODUCTION ±1% Accuracy, Low-Power, +3V and +5V µP Supervisory Circuits
MAX815
PRODUCTION ±1% Accuracy, Low-Power, +3V and +5V µP Supervisory Circuits
MAX816
PRODUCTION ±1% Accuracy, Low-Power, +3V and +5V µP Supervisory Circuits
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