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MCP1321
  • MCP1321

MCP1321

In Production

The MCP1316/16M/17/18/18M/19/19M/20/21/22 are voltage supervisor devices designed to keep a microcontroller in reset until the system voltage has reached and stablized at a proper level for reliable system operation. These devices also protect from brown-out conditions when the system supply voltage drops below the specified threshold voltage level.

Microchip Technology MCP1321 Product Info

16 April 2026 0

Parameters

Driver Type

Supervisor

Min Operating Voltage (V)

1

Max Operating Voltage (V)

5.5

Nominal Reset Voltage Min

2

Nominal Reset Voltage Max

4.6

Watchdog Timer

Yes

Manual Reset

No

Power Fail

No

Min Operating Ambient Temperature (°C)

-40

Max Operating Ambient Temperature (°C)

125

Features

  • Low supply current
  • Precision monitoring trip point options of 2.0V to 4.7V (100 mV increment)
  • Reset microcontroller in a power loss event
  • Reset delay time-out option: (1.4 ms, 30 ms, 200 ms, 1600 ms)
  • Watchdog timer input time-out options: (6.3 ms, 102 ms, 1600 ms, 25600 ms)
  • Complementary Reset Output
  • SOT-23-5 Pb-free packaging

Description

The MCP1316/16M/17/18/18M/19/19M/20/21/22 are voltage supervisor devices designed to keep a microcontroller in reset until the system voltage has reached and stablized at a proper level for reliable system operation. These devices also protect from brown-out conditions when the system supply voltage drops below the specified threshold voltage level.

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