X25644I 데이터 시트보기 (PDF) - Xicor -> Intersil

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X25644I

Programmable Watchdog Timer w/Serial E2PROM

Xicor -> Intersil 

X25644/46

X25324/26

X25164/66

CS vs. RESET/RESET Timing

CS

RESET

RESET

t CST

t WDO

tRST

tWDO

t RST

Power Up and Down Timing Diagram

VCC

VRST

tPURST

7029 FRM 11

RESET

RESET

RESET/RESET Output Timing

Symbol

tWDO

tCST

tRST

tPURST

VRST

Parameter

Watchdog Timeout Period,

WD1 = 1, WD0 = 0

WD1 = 0, WD0 = 1

WD1 = 0, WD0 = 0

CS Pulse Width to Reset the Watchdog

Reset Timeout

Power Up Reset Timeout

Reset Valid Voltage

Min.

100

450

1

400

100

100

1.0

Typ.

200

600

1.4

200

7029 FRM 12

Max.

300

800

2

300

350

Units

ms

ms

sec

ns

ms

ms

V

7029 FRM T15

11

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