UM811 Datasheet 4-Pin uP Voltage Monitors

Manufacturer: Union Semiconductor

Download the UM811 datasheet PDF. This datasheet also includes the UM805 variant, as both parts are published together in a single manufacturer document.

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UM811 4-pin up voltage monitors by Union Semiconductor - Datasheet Preview — Note: The manufacturer provides a single datasheet file (UM805-UnionSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	UM811
Manufacturer	Union Semiconductor
File Size	298.51 KB
Description	4-Pin uP Voltage Monitors
Datasheet	UM811 Datasheet

General Description

The UM805/811/812 are low-power microprocessor (μP) supervisory circuits used to monitor power supplies in μP and digital systems.

They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with 5V-powered or 3V-powered circuits.

The UM805/811/812 also provide a debounced manual reset input.

Overview

UM805/811/812 4-Pin μP Voltage Monitors with Manual Reset Input UM805/811/812.

Key Features

z Computers z No External Components z Controllers z VCC Transient Immunity z Portable/Battery-Powered Equipments z Correct Logic Output Guaranteed to VCC=1.0V z Intelligent Instruments z Precision VCC Monitoring of 3.0V, 3.3V and 5.0V z Critical μP and μC Power Monitoring Supplies z 2μA Supply Current z 140ms Minimum Power-On Reset Pulse Width z Guaranteed Over Temperature z Available in 3 Output Con_f_i_g__u_r_a__t_ions: Open-Drain Active-Low___R__E__S__E_ T Output (UM805) Push-Pul.

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