MCP1316M datasheet(9/44 Pages) MICROCHIP

9 / 44 page

DS21985B-page 9

MCP131X/2X

FIGURE 1-2:

MR and Reset Pin Waveforms.

TABLE 1-2:

MR AND RESET PIN TIMINGS

FIGURE 1-3:

WDI and Reset Pin Waveforms.

TABLE 1-3:

WDI AND RESET PIN TIMINGS

Electrical Specifications: Unless otherwise indicated, all limits are specified for VDD = 1V to 5.5V, RPU = 100 kΩ

(only MCP1320, MCP1321, and MCP1322), TA = -40°C to +125°C.

Parameters

Sym

Min

Typ

Max

Units

Conditions

MR Pulse Width

tMR

1—

—

µs

MR Active to RST/RST Active

tMRD

—235

—

VDD = 5.0V

MR Input Noise filter

tNF

—150

—

VDD = 5.0V

Note 1:

These parameters are for design guidance only and are not 100% tested.

Electrical Specifications: Unless otherwise indicated, all limits are specified for VDD = 1V to 5.5V, RPU = 100 kΩ

(only MCP1320, MCP1321, and MCP1322), TA = -40°C to +125°C.

Parameters

Sym

Min

Typ

Max

Units

Conditions

WDI Pulse Width

tWP

—

Watchdog Time Out Period

tWD

4.3

6.3

9.3

Note 1

102

153

Note 1

1.12

1.6

2.4

sec

Standard Time Out

17.9

25.6

38.4

sec

Note 1

Note 1:

Custom ordered WatchDog Timer time out; minimum order volume requirement.

RST

tRST

tMR

RST

tMRD

tNF

RST

WDI (Note 1)

tWP

tWD

tRST

Note 1: The WDI pin was a weak pull-up resistor which is disabled after the 1st falling edge on the WDI pin.

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