+5V Microprocessor Supervisory Circuits
19-0494; Rev 1; 3/96
+5V Microprocessor Supervisory Circuits
MAX817L/M, MAX818L/M, MAX819L/M*
_______________General D...
Description
19-0494; Rev 1; 3/96
+5V Microprocessor Supervisory Circuits
MAX817L/M, MAX818L/M, MAX819L/M*
_______________General Description
The MAX817/MAX818/MAX819 microprocessor (µP) supervisory circuits simplify power-supply monitoring, battery control, and chip-enable gating in µP systems by reducing the number of components required. These devices are designed for use in +5V-powered systems. Low supply current (11µA typical) and small package size make these devices ideal for portable applications. The MAX817/MAX818/MAX819 are specifically designed to ignore fast transients on VCC. Other supervisory functions include active-low reset, backupbattery switchover, watchdog input, battery freshness seal, and chip-enable gating. The Selector Guide below lists the specific functions available from each device.
These devices offer two pretrimmed reset threshold voltages for ±5% or ±10% power supplies: 4.65V for the L versions and 4.40V for the M versions. The MAX817/ MAX818/MAX819 are availab...
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