MIC1832
3.3V Voltage Supervisor with Manual Reset, Watchdog Timer and Dual Reset Outputs
General Description
The MIC183...
MIC1832
3.3V
Voltage Supervisor with Manual Reset, Watchdog Timer and Dual Reset Outputs
General Description
The MIC1832 is a low-current microprocessor supervisor for monitoring 3.3V and 3V systems. The device features logic-selectable (TOL) reset thresholds of 10% or 20% of 3.3V; a pushbutton reset input; 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 MIC1832 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, after the supply
voltage increa...