FM811 Datasheet (Fairchild Semiconductor) - Microprocessor Reset Circuits

FM811, Microprocessor Reset Circuits

The FM811/FM812 is a low cost microprocessor supervisory circuit that asserts a reset if the power supply drops below a designated threshold or the manual reset pin is forced low.

Several different reset thresholds are available to accommodate systems operating at 3V, 3.3V or 5V.

Preliminary Inform

FM811 Features

* Feature

* Precision Voltage Monitor for 3V, 3.3V or 5V Power Supplies

* 6µA Supply Current

* 140ms Minimum Reset Pulse Width

* RESET Remains Valid with VCC as Low as 1.4V

* Active Low Manual Reset Input

* No External Components

* 4-Pi