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Rainbow Electronics DS1642 User Manual

Page 7

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DS1642

7 of 11

WRITE CYCLE, AC CHARACTERISTICS

(0°C to 70°C; VCC = 5.0V ± 10%)

70 ns access

100 ns access

PARAMETER

SYMBOL

MIN

MAX

MIN

MAX

UNITS

NOTES

Write Cycle Time

t

WC

70

100

ns

Address Setup Time

t

AS

0

0

ns

WE

Pulse Width

t

WEW

50

70

ns

CE

Pulse Width

t

CEW

60

75

ns

Data Setup Time

t

DS

30

40

ns

Data Hold Time

t

DH

0

0

ns

Address Hold Time

t

AH

5

5

ns

WE

Data Off Time

t

WEZ

25

35

ns

Write Recovery Time

t

WR

5

5

ns