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MCP810 - 3-Pin Microprocessor Reset Circuits

General Description

The MCP809/810 microprocessor supervisory circuits can be used to monitor the power supplies in microprocessor and digital systems.

They provide a reset to the microprocessor during power-up, power-down and brown-out conditions.

Key Features

  • n Precise monitoring of 3V, 3.3V, and 5V supply voltages n Fully specified over temperature n 140ms min. Power-On Reset pulse width, 240ms typical Active-low RESET Output (MCP809) Active-high RESET Output (MCP810) n Guaranteed RESET Output valid for VCC≥1V n Low Supply Current, 15µA typ. n Power supply transient immunity.

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Datasheet Details

Part number MCP810
Manufacturer National
File Size 151.13 KB
Description 3-Pin Microprocessor Reset Circuits
Datasheet download datasheet MCP810 Datasheet

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MCP809 3-Pin Microprocessor Reset Circuits

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MCP809/MCP810 3-Pin Microprocessor Reset Circuits June 2001 MCP809/MCP810 3-Pin Microprocessor Reset Circuits General Description The MCP809/810 microprocessor supervisory circuits can be used to monitor the power supplies in microprocessor and digital systems. They provide a reset to the microprocessor during power-up, power-down and brown-out conditions. The function of the MCP809/810 is to monitor the VCC supply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for 240ms after VCC rises above the threshold. The MCP809 has an active-low RESET output, while the MCP810 has an active-high RESET output. Seven standard reset voltage options are available, suitable for monitoring 5V, 3.