Download the SGM809 datasheet PDF.
This datasheet also covers the SGM803 variant, as both devices belong to the same microprocessor supervisory family and are provided as variant models within a single manufacturer datasheet.
General Description
The SGM803/SGM809/SGM810 supervisory circuits monitor the power supply voltage in microprocessor and digital systems.
They provide a reset output during power-up, power-down and brownout conditions.
On power-up, an internal timer holds reset asserted for 240ms.
Key Features
built-in glitch immunity, making it immune to fast transients on VCC. The low supply current of typically 13μA makes the SGM803/SGM809/SGM810 ideal for use in portable, battery operated equipment. All are specified over the extended -40℃ to +125℃ temperature range.
Note: The manufacturer provides a single datasheet file (SGM803_ShengbangMicroelectronics.pdf) that lists specifications for multiple related part numbers.
Full PDF Text Transcription for SGM809 (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
SGM809. For precise diagrams, and layout, please refer to the original PDF.
SGM803/SGM809/SGM810 Microprocessor Supervisory Circuit in 3-Pin SOT-23 GENERAL DESCRIPTION The SGM803/SGM809/SGM810 supervisory circuits monitor the power supply voltage...
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03/SGM809/SGM810 supervisory circuits monitor the power supply voltage in microprocessor and digital systems. They provide a reset output during power-up, power-down and brownout conditions. On power-up, an internal timer holds reset asserted for 240ms. This holds the microprocessor in a reset state until conditions have stabilized. The RESET output remains operational with VCC as low as 1V. The SGM803 and SGM809 provide an active low reset signal ( RESET ) while the SGM810 provides an active high signal (RESET) output. The SGM809/SGM810 have push-pull outputs, whereas the SGM803 has an open-drain output, which requires an
SGM809 Datasheet
