PT7A7511-15 datasheet(5/9 Pages) PERICOM

Part #	PT7A7511-15

Description	uP Supervisor Circuits

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Manufacturer	PERICOM [Pericom Semiconductor Corporation]

Direct Link	http://www.pericom.com

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12-07-0002

PT0082-7

07/05/12

5

PT7A7511-15/7521-25/7531-35

μP Supervisor Circuits

AC Electrical Characteristics

Symbol

Description

Test Conditions

Min

Typ

Max

Unit

tRS

Reset Pulse Width

MR from low to High, TA=25℃

160

200

280

ms

tWD

Watchdog Timeout Period

WDI, MR tied to Vcc, Vcc>VRN+5% ,

TA=25℃

1.2

1.6

2.25

s

tMR

MR Pulse Width

-

200

-

ns

tMD

MR to RESET Delay

Vcc=5V

-

250

ns

tWP

WDI Pulse Width

-

150

-

ns

Watchdog Timing Diagram

t

WP

t

WD

t

WD

t

WD

t

RS

WDI

WDO

RESET

5V

0V

5V

0V

5V

0V

5V

0V

Externally

Triggered by MR

Watchdog Timing Diagram

V

RT

t

RS

t

RS

t

MR

t

MD

WDO

RESET

MR

5V

0V

V

RT

V

CC

5V

0V

5V

0V

5V

0V

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PT7A7511-15 Datasheet(PDF) 5 Page - Pericom Semiconductor Corporation

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