19-1658; Rev 1; 6/01
SOT23, Low-Power µP Supervisory Circuits with Battery Backup and Chip-Enable Gating
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 ultrasmall integrated solution.
These devices perform four basic system functions: 1) Provide a µP reset output during VCC supply powerup, power-down, and brownout conditions.
2) Internally control VCC to backup-battery switching to maintain data or low-power operation for
CMOS RAM,
CMOS µPs, real-time cloc...