Ultra-Low-Voltage SC70 Voltage Detectors and uP Reset Circuits
MAX6832–MAX6840
Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
General Description
The MAX6832–MAX6840 ...
Description
MAX6832–MAX6840
Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
General Description
The MAX6832–MAX6840 are microprocessor (µP) supervisory circuits used to monitor low-voltage power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +1.2V to +1.8V powered circuits.
These devices assert a reset signal whenever the VCC supply voltage declines below a preset threshold or whenever manual reset (MR) is asserted. Reset remains asserted for a fixed timeout delay after VCC has risen above the reset threshold or when manual reset is deasserted. Five different timeout periods are available: 70µs (voltage detector), 1.5ms, 30ms, 210ms, and 1.68s. Reset thresholds suitable for operation with a variety of supply voltages are available.
The MAX6832/MAX6835/MAX6838 have a push-pull active-low reset output (RESET). The MAX6833/ MAX6836/MAX6839 have a push-pull active-high...
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