MCP1318MT-46LE/OT 查看數據表（PDF） - Microchip Technology

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MCP1318MT-46LE/OT

Voltage Supervisor

Microchip Technology 

MCP131X/2X

MR

RST

tMR

tNF

tMRD

tRST

RST

FIGURE 1-2:

MR and Reset Pin Waveforms.

TABLE 1-2: MR 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

—

ns

MR Input Noise filter

tNF

—

150

—

ns

Note 1: These parameters are for design guidance only and are not 100% tested.

VDD = 5.0V

VDD = 5.0V

RST

RST

WDI (Note 1)

tWP

tWD

tRST

tWD

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

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

WDI Pulse Width

Watchdog Time Out Period

tWP

50

—

—

ns

tWD

4.3

6.3

9.3

ms Note 1

71

102

153

ms 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.

© 2005 Microchip Technology Inc.

DS21985A-page 9

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