MP6411―WINDOWED WATCHDOG TIMER

MP6411 Rev. 1.1

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7

1/24/2018

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PIN FUNCTION

Pin #

Name

Description

1

WDO

Watchdog output. WDO outputs a reset signal to the MCU.

MP6411 WDO is the output of a inverter, it is not must to connect WDO to VCC or

another voltage source through a resistor.

MP6411-33 WDO is the open drain of a MOSFET and should be connected to VCC

or another voltage source through a resistor (e.g.100kΩ).

2

WDI

Watchdog input. WDI receives the trigger signal from the MCU.

3

MODE

Mode switching pin. Pull MODE high to make the watchdog operate in long window

mode; pull MODE low to make it work in short window mode. MODE has a weak

internal pull-up.

4

GND

Ground.

5

NC

Not connected.

6

VCC

Power input.

7

TIMER

Watchdog timer pin. TIMER sets the time-out with an external resistor

8

/WD_DIS

Watchdog disable pin. Pull /WD_DIS low to disable the watchdog; pull /WD_DIS

high to enable the watchdog. It has a weak internal pull-up.