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SGM819S-DBQ - Watchdog Timer

This page provides the datasheet information for the SGM819S-DBQ, a member of the SGM819S-AQ Watchdog Timer family.

Description

The SGM819SxQ is an independent watchdog timer circuit.

It can be used to guard against system failures due to hardware types like peripherals errors and bus occupancy or software types like infinite code execution in a loop.

This device has a WDI input and an nWDO output.

Features

  • AEC-Q100 Qualified for Automotive.

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Datasheet Details

Part number SGM819S-DBQ
Manufacturer SG Micro
File Size 634.11 KB
Description Watchdog Timer
Datasheet download datasheet SGM819S-DBQ Datasheet
Additional preview pages of the SGM819S-DBQ datasheet.

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Full PDF Text Transcription

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SGM819SxQ Watchdog Timer Circuit for Automotive Applications GENERAL DESCRIPTION The SGM819SxQ is an independent watchdog timer circuit. It can be used to guard against system failures due to hardware types like peripherals errors and bus occupancy or software types like infinite code execution in a loop. This device has a WDI input and an nWDO output. In normal conditions, the WDI is toggled within the preset timeout period called tWD in order to clear the watchdog timer. However, if an error event occurs and the watchdog timer is not reset within tWD, the nWDO is asserted to send out the alarm signal. The SGM819SxQ has an enable pin (nEN) to control the device to turn on/off the watchdog function.
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