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IDT7164L15D

CMOS STATIC RAM 64K (8K x 8-BIT)

Integrated Device Technology 

IDT7164S/L

CMOS STATIC RAM 64K (8K x 8-BIT)

MILITARY AND COMMERCIAL TEMPERATURE RANGES

AC ELECTRICAL CHARACTERISTICS (VCC = 5.0V ± 10%, All Temperature Ranges)

7164S15(1)

7164L15(1)

7164S20

7164L20

7164S25

7164L25

Symbol

Parameter

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

Read Cycle

tRC

Read Cycle Time

15 —

20

—

25

—

tAA

Address Access Time

tACS1(3) Chip Select-1 Access Tim

tACS2(3) Chip Select-2 Access Time

tCLZ1,2(4) Chip Select-1, 2 to Output in Low-Z

— 15

—

19

—

25

— 15

—

20

—

25

— 20

—

25

—

30

5—

5

—

5

—

tOE

Output Enable to Output Valid

tOLZ(4) Output Enable to Output in Low-Z

tCHZ1,2(4) Chip Select-1, 2 to Output in High-Z

tOHZ(4) Output Disable to Output in High-Z

—7

—

8

—

12

0—

0

—

0

—

—8

—

9

—

13

—7

—

8

—

10

tOH

tPU(4)

tPD(4)

Output Hold from Address Change

Chip Select to Power Up Time

Chip Deselect to Power Down Time

5—

5

—

5

—

0—

0

—

0

—

— 15

—

20

—

25

Write Cycle

tWC

Write Cycle Time

15 —

20

—

25

—

tCW1, 2 Chip Select to End-of-Write

14 —

15

—

18

—

tAW

Address Valid to End-of-Write

14 —

15

—

18

—

tAS

Address Set-up Time

0—

0

—

0

—

tWP

Write Pulse Width

tWR1 Write Recovery Time (CS1, WE)

14 —

15

—

21

—

0—

0

—

0

—

tWR2 Write Recovery Time (CS2)

tWHZ(4) Write Enable to Output in High-Z

5—

5

—

5

—

—6

—

8

—

10

tDW

Data to Write Time Overlap

tDH1

Data Hold from Write Time (CS1, WE)

8

—

10

—

13

—

0—

0

—

0

—

tDH2

tOW(4)

Data Hold from Write Time (CS2)

Output Active from End-of-Write

5—

5

—

5

—

4—

4

—

4

—

NOTES:

1. 0° to +70°C temperature range only.

2. –55°C to +125°C temperature range only. Also available: 100ns military devices.

3. Both chip selects must be active for the device to be selected.

4. This parameter is guaranteed by device characterization, but is not production tested.

7164S30(2)

7164L30

Min. Max.

Unit

30

— ns

—

29 ns

—

30 ns

—

35 ns

5

— ns

—

15 ns

0

— ns

—

13 ns

—

12 ns

5

— ns

0

— ns

—

30 ns

30

— ns

22

— ns

22

— ns

0

— ns

23

— ns

0

— ns

5

— ns

—

12 ns

13

— ns

0

— ns

5

— ns

4

— ns

2967 tbl 11

6.1

5

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