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SGM819S-FBQ - Watchdog Timer

Download the SGM819S-FBQ datasheet PDF. This datasheet also covers the SGM819S-AQ variant, as both devices belong to the same watchdog timer family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SGM819S-AQ-SGMicro.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by SG Micro

Part Number Description
SGM819S-FAQ Watchdog Timer
SGM819S-AQ Watchdog Timer
SGM819S-BAQ Watchdog Timer
SGM819S-BBQ Watchdog Timer
SGM819S-CAQ Watchdog Timer

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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