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MIC1232

Micrel Semiconductor
Part Number MIC1232
Manufacturer Micrel Semiconductor
Description 5V Voltage Supervisor
Published Mar 22, 2005
Detailed Description MIC1232 5V Voltage Supervisor with Manual Reset, Watchdog Timer and Dual Reset Outputs General Description The MIC1232 ...
Datasheet PDF File MIC1232 PDF File

MIC1232
MIC1232

Overview
MIC1232 5V Voltage Supervisor with Manual Reset, Watchdog Timer and Dual Reset Outputs General Description The MIC1232 is a low-current microprocessor supervisor for monitoring 5V systems.
The device features logic selectable (TOL) reset thresholds of 5% or 10% of 5V; a pushbutton reset input (/PBRST); a watchdog timer with three-state selectable (TD) timeout periods of 150ms, 600ms, or 1.
2s; a fixed reset timeout period of 250ms (min); and active-low open-drain reset (/RST) and activehigh push-pull reset (RST) outputs.
The /RST output maintains a valid reset condition for VCC as low as 1.
4V.
The MIC1232 asserts a reset condition if the supply voltage drops below the reset threshold, the pushbutton reset is asserted low, or the watchdog timer does not see a high-to-low transition on the watchdog timer input within the watchdog timer period.
A reset condition is held for the reset timeout period of 250ms (min) after the pushbutton input is released or after the supply voltage increases...


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