Ac electrical characteristics (0, C to +70, C; v – Rainbow Electronics DS1254 User Manual

Page 9: 3v ± 10%)

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DS1254

9 of 17

AC ELECTRICAL CHARACTERISTICS

(0

°

C to +70

°

C; V

CC

= 3.3V

±

10%)

PARAMETER

SYMBOL

MIN

MAX

UNITS

NOTES

Read Cycle Time

t

RC

150

nS

Address Access Time

t

AAC

150

nS

OE

to Output Valid

t

OE

75

nS

CE

to Output Valid

t

CO

150

nS

CE

or

OE

to Output Active

t

COE

5

nS

2

Output High- Z from Deselection

t

OD

70

nS

2

Output Hold from Address Change

t

OH

5

nS

Write Cycle Time

t

WC

150

nS

WE

,

CE

Pulse Width

t

WP

100

nS

5

Address Setup Time

t

AW

0

nS

t

AH1

5

nS

6

Address Hold Time

t

AH2

25

nS

7

Output High- Z from

WE

t

ODW

70

nS

2

Output Active from

WE

t

OEW

5

nS

2

Data Setup Time

t

DS

60

nS

8

t

DH1

0

nS

6

Data Hold Time

t

DH2

20

nS

8

Read Recovery
(Clock Access Only)

t

RR

20

nS

Write Recovery
(Clock Access Only)

t

WR

20

nS


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