P3C1256L - 32K x 8 STATIC CMOS RAM

Page 5

Document # SRAM143 REV A

AC CHARACTERISTICS—WRITE CyCLE

(Over Recommended Operating Temperature & Supply Voltage)

Symbol Parameter

-55

-70

-85

Unit

Min

Max

Min

Max

Min

Max

t

WC

Write Cycle Time

55

70

85

ns

t

CW

Chip Enable Time to End of Write

50

60

75

ns

t

AW

Address Valid to End of Write

50

60

75

ns

t

AS

Address Setup Time

0

0

0

ns

t

WP

Write Pulse Width

40

50

60

ns

t

AH

Address Hold Time

0

0

0

ns

t

DW

Data Valid to End of Write

25

30

35

ns

t

DH

Data Hold Time

0

0

0

ns

t

WZ

Write Enable to Output in High Z

25

30

35

ns

t

OW

Output Active from End of Write

5

5

5

ns

Notes:

10. CE and WE must be LOW for WRITE cycle.

11. OE is LOW for this WRITE cycle to show t

12. If CE goes HIGH simultaneously with WE HIGH, the output remains

in a high impedance state

13. Write Cycle Time is measured from the last valid address to the first

transitioning address.