W24258S-70LI datasheet(4/11 Pages) WINBOND

Part #	W24258S-70LI

Description	32K X 8 CMOS STATIC RAM

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Manufacturer	WINBOND [Winbond]

Direct Link	http://www.winbond.com

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W24258

- 4 -

AC Characteristics, continued

(VDD = 5V

±10%; VDD = 3V ±10%; VSS = 0V; TA (°C) = -20 to 85 for LE; -40 to 85 for LI)

Read Cycle

PARAMETER

SYM.

5V

3V

UNIT

MIN.

MAX.

MIN.

MAX.

Read Cycle Time

TRC

70

-

100

-

nS

Address Access Time

TAA

-

70

-

100

nS

Chip Select Access Time

TACS

-

70

-

100

nS

Output Enable to Output Valid

TAOE

-

35

-

50

nS

Chip Selection to Output in Low Z

TCLZ*

10

-

15

-

nS

Output Enable to Output in Low Z

TOLZ*

5

-

5

-

nS

Chip Deselection to Output in High Z

TCHZ*

-

30

-

35

nS

Output Disable to Output in High Z

TOHZ*

-

30

-

35

nS

Output Hold from Address Change

TOH

10

-

15

-

nS

∗ These parameters are sampled but not 100% tested

Write Cycle

PARAMETER

SYM.

5V

3V

UNIT

MIN.

MAX.

MIN.

MAX.

Write Cycle Time

TWC

70

-

100

-

nS

Chip Selection to End of Write

TCW

50

-

70

-

nS

Address Valid to End of Write

TAW

50

-

70

-

nS

Address Setup Time

TAS

0

-

0

-

nS

Write Pulse Width

TWP

50

-

70

-

nS

Write Recovery Time

CS, WE

TWR

0

-

0

-

nS

Data Valid to End of Write

TDW

30

-

50

-

nS

Data Hold from End of Write

TDH

0

-

0

-

nS

Write to Output in High Z

TWHZ*

-

25

-

30

nS

Output Disable to Output in High Z

TOHZ*

-

25

-

30

nS

Output Active from End of Write

TOW

5

-

10

-

nS

∗ These parameters are sampled but not 100% tested

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