UM61512A 데이터 시트보기 (PDF) - UMC Corporation

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UM61512A

64K X 8 BIT HIGH SPEED CMOS SRAM

UMC Corporation 

UM61512A

AC Characteristics (continued)

Symbol

Parameter

Write Cycle

tWC

Write Cycle Time

tCW

Chip Enable to End of Write

tAS

Address Setup Time of Write

tAW

Address Valid to End of Write

tWP

Write Pulse Width

tWR

Write Recovery Time

tWHZ

Write to Output in High Z

tDW

Data to Write Time Overlap

tDH

Data Hold from Write Time

tOW

Output Active from End of Write

UM61512A-15 UM61512A-20 UM61512A-25

Min. Max. Min. Max. Min. Max.

Unit

15

20

20

25

25

-

ns

12

15

15

20

20

-

ns

0

0

0

0

0

-

ns

12

15

15

20

20

-

ns

9

-

11

-

-

-

ns

0

-

0

-

-

-

ns

0

8

0

13

13

13

ns

7

-

7

-

-

-

ns

0

-

0

-

-

-

ns

5

-

5

-

-

-

ns

Notes: tCHZ1, tCHZ2, tOHZ and tWHZ are defined as the time at which the outputs achieve the open circuit condition and are not

referred to output voltage levels.

Timing Waveforms

Read Cycle 1(1,2,4)

tRC

Address

tAA

tOH

tOH

DOUT

5

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