FM812 Datasheet Microprocessor Reset Circuits

Manufacturer: Fairchild (now onsemi)

Download the FM812 datasheet PDF. This datasheet also includes the FM811 variant, as both parts are published together in a single manufacturer document.

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FM812 microprocessor reset circuits by Fairchild (now onsemi) - Datasheet Preview — Note: The manufacturer provides a single datasheet file (FM811_FairchildSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	FM812
Manufacturer	Fairchild (now onsemi)
File Size	42.03 KB
Description	Microprocessor Reset Circuits
Datasheet	FM812 Datasheet

General Description

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 Information Applications • • • • • Critical Microprocessor Power Monitoring Portable Equipment Intelligent Instruments Computers & Printers Controllers The FM811 has an active low RESET output, while the FM812 offers an active high RESET output.

Overview

www.fairchildsemi.com FM811/812 Microprocessor Reset Circuits.

Key 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-Pin SOT-143 Package.

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