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Rainbow Electronics DS1258Y_AB User Manual

Page 5

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DS1258Y/AB

100395 5/9

(V

CC

=5V

±

5% for DS1258AB)

AC ELECTRICAL CHARACTERISTICS

(t

A

: See Note 10) (V

CC

=5V

±

10% for DS1258Y)

PARAMETER

SYMBOL

DS1258Y–70

DS1258AB–70

DS1258Y–100

DS1258AB–100

UNITS

NOTES

PARAMETER

SYMBOL

MIN

MAX

MIN

MAX

UNITS

NOTES

Read Cycle Time

t

RC

70

100

ns

Access Time

t

ACC

70

100

ns

OE to Output Valid

t

OE

35

50

ns

CE to Output Valid

t

CO

70

100

ns

OE or CE to Output Valid

t

COE

5

5

ns

5

Output High Z from Deselection

t

OD

25

35

ns

5

Output Hold from Address
Change

t

OH

5

5

ns

Write Cycle Time

t

WC

70

100

ns

Write Pulse Width

t

WP

55

75

ns

3

Address Setup Time

t

AW

0

0

ns

Write Recovery Time

t

WR1

t

WR2

5

15

5

15

ns
ns

12
13

Output High Z from WE

t

ODW

25

35

ns

5

Output Active from WE

t

OEW

5

5

ns

5

Data Setup Time

t

DS

30

40

ns

4

Data Hold Time

t

DH1

t

DH2

0

10

0

10

ns
ns

12
13

READ CYCLE

t

RC

t

ACC

V

IH

V

IL

V

IH

V

IL

V

IH

V

IL

t

OH

V

IH

t

OD

t

OD

V

IH

V

OH

V

OL

V

OH

V

OL

t

COE

t

COE

OUTPUT
DATA VALID

D

OUT

OE

ADDRESSES

V

IH

V

IH

t

OE

V

IL

V

IL

CEU, CEL

t

CO

SEE NOTE 1