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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 (Continued) (VCC = 5.0V ± 10%, All Temperature Ranges)

7164S35

7164L35

7164S45(2)

7164L45(2)

7164S55(2)

7164L55(2)

7164S70/85(2)

7164L70/85(2)

Symbol

Parameter

Min. Max. Min. Max. Min. Max. Min. Max. Unit

Read Cycle

tRC

Read Cycle Time

35 —

45

—

55

— 70/85 — ns

tAA

Address Access Time

tACS1(3) Chip Select-1 Access Time

tACS2(3) Chip Select-2 Access Time

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

— 35

—

45

—

55

— 35

—

45

—

55

— 40

—

45

—

55

5—

5

—

5

—

— 70/85 ns

— 70/85 ns

— 70/85 ns

5

— ns

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

— 18

—

25

—

30

0—

0

—

0

—

— 15

—

20

—

25

— 15

—

20

—

25

— 35/40 ns

0

— ns

— 30/35 ns

— 30/35 ns

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

—

— 35

—

45

—

55

5

— ns

0

— ns

— 70/85 ns

Write Cycle

tWC

Write Cycle Time

35 —

45

—

55

— 70/85 — ns

tCW1, 2 Chip Select to End-of-Write

25 —

33

—

50

— 60/75 — ns

tAW

Address Valid to End-of-Write

25 —

33

—

50

— 60/75 — ns

tAS

Address Set-up Time

0—

0

—

0

—

0

— ns

tWP

Write Pulse Width

tWR1 Write Recovery Time (CS1, WE)

25 —

25

—

50

— 60/75 — ns

0—

0

—

0

—

0

— ns

tWR2 Write Recovery Time (CS2)

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

5—

5

—

5

—

— 14

—

18

—

25

5

— ns

— 30/35 ns

tDW

Data to Write Time Overlap

tDH1

Data Hold from Write Time (CS1, WE)

15 —

20

—

25

— 30/35 — ns

0—

0

—

0

—

0

— ns

tDH2

Data Hold from Write Time (CS2)

5—

5

—

5

—

tOW(4) Output Active from End-of-Write

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.

5

— ns

4

— ns

2967 tbl 11

6.1

6

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