General Description

The MAX6365–MAX6368 supervisory circuits simplify power-supply monitoring, battery-backup control functions, and memory write protection in microprocessor (µP) systems. The circuits significantly improve the size, accuracy, and reliability of modern systems with an ultra small integrated solution.

Features

♦ Low +1.2V Operating Supply Voltage (VCC or VBATT)

♦ Precision Monitoring of +5.0V, +3.3V, +3.0V, and +2.5V Power-Supply Voltages

♦ On-Board Gating of Chip-Enable Signals, 1.5ns Propagation Delay

♦ Debounced Manual Reset Input (MAX6365)

♦ Watchdog Timer, 1.6s Timeout (MAX6366)

♦ Battery-On Output Indicator (MAX6367)

♦ Auxiliary User-Adjustable RESET IN (MAX6368)

♦ Low 10µA Quiescent Supply Current

♦ Three Available Output Structures

  Push-Pull RESET

  Open-Drain RESET

  Open-Drain RESET

♦ RESET/RESET Valid Down to 1.2V Guaranteed (VCC or VBATT)

♦ Power-Supply Transient Immunity

♦ 150ms min Reset Timeout Period

♦ Miniature 8-Pin SOT23 Package