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DS1819 - 5V/3.3V MicroMonitor

Download the DS1819 datasheet PDF. This datasheet also covers the DS1814 variant, as both devices belong to the same 5v/3.3v micromonitor family and are provided as variant models within a single manufacturer datasheet.

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Note: The manufacturer provides a single datasheet file (DS1814_DallasSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number DS1819
Manufacturer Dallas Semiconductor
File Size 182.38 KB
Description 5V/3.3V MicroMonitor
Datasheet download datasheet DS1819 Datasheet

General Description

DS181xA 1 RST 2 GND PBRST 3 4 ST 5 VCC DS181xB 1 RST 2 GND 3 RST 4 ST 5 VCC DS181xC 1 RST 2 GND 3 RST 4 PBRST 5 VCC Active Low Reset Output Ground Pushbutton Reset Input Strobe Input Power Supply DEVICE RST PBRST WD X X DS181xA X DS181xB X X DS181xC X X x = "DS1814" for 5V devices x = "DS1819" for 3V devices X X Active Low Reset Output Ground Active High Reset Output Strobe Input Power Supply Active Low Reset Output Ground Active High Reset Output Pushbutton Reset Input Power Supply DESCRIPTION The DS1814 5-Volt MicroMonitor and the DS1819 3.3V MicroMonitor monitor three vital conditions for a microprocessor: power supply, software execution, and external override.

First, a precision temperaturecompensated reference and comparator circuit monitor the status of VCC.

When an out-of-tolerance condition occurs, an internal power-fail signal is generated which forces the reset(s) to an active state.

Overview

www.DataSheet4U.com DS1814/DS1819 5V and 3.3V MicroMonitor www.maxim-ic.

Key Features

  • Halts and restarts an out-of-control microprocessor Holds microprocessor in check during power transients Automatically restarts microprocessor after power failure Monitors pushbutton for external override Accurate 5%, 10%, or 20% (3V only) microprocessor power monitoring Eliminates the need for discrete components 20% tolerance for use with 3.0V systems Pin- and function-compatible with the MAX823/24/25 products Low cost SOT-23-5 packa.

More Datasheets from Dallas Semiconductor

Part Number Description
DS1810 5V EconoReset
DS1811 5V EconoReset
DS1812 5V EconoReset
DS1814 5V/3.3V MicroMonitor
DS1815 3.3V EconoReset
DS1816 3.3V EconoReset
DS1817 Active High 3.3V EconoReset
DS1833 5V EconoReset
DS1833A 3.3V EconoReset
DS1834 Dual EconoReset