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SP810 - 3 Pin Microprocessor Supervisor Circuit

This page provides the datasheet information for the SP810, a member of the SP809 3 Pin Microprocessor Supervisor Circuit family.

Datasheet Summary

Description

The SP809/SP810 are low power microprocessor (μP) supervisory circuits used to monitor power supplies in μP and digital systems.

They provide applications with benefits of circuit reliability and low cost by eliminating external components.

Features

  • Ultra Low Supply Current 1µA (typ).
  • Guaranteed Reset valid to VCC = 0.9V.
  • 140ms Power-On Reset Pulse Width.
  • Internally Fixed Threshold 2.3V, 2.6V, 2.9V, 3.1V, 4.4V, 4.6V.
  • 1.5% Voltage Threshold Tolerance.
  • 3 Pin SOT-23 Package Part Number SP809N SP809 SP810 Output Type Open Drain Active Low Push-Pull Low Push-Pull Active High.

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Datasheet preview – SP810

Datasheet Details

Part number SP810
Manufacturer Exar
File Size 467.24 KB
Description 3 Pin Microprocessor Supervisor Circuit
Datasheet download datasheet SP810 Datasheet
Additional preview pages of the SP810 datasheet.

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Full PDF Text Transcription

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February 2011 SP809 / SP810 3 Pin Microprocessor Supervisor Circuit Rev. 2.0.0 GENERAL DESCRIPTION The SP809/SP810 are low power microprocessor (μP) supervisory circuits used to monitor power supplies in μP and digital systems. They provide applications with benefits of circuit reliability and low cost by eliminating external components. If the VCC supply voltage falls below preset threshold then a reset signal is asserted for at least 140ms after VCC has risen above the reset threshold. Both the SP809 and SP810 were designed with a reset comparator to help identify invalid signals, which last less than 140ms. The only difference between them is that they have an active-low RESET output and active-high RESET output, respectively.
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