IDT72255LA10PFG(2005) 데이터 시트보기 (PDF) - Integrated Device Technology

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IDT72255LA10PFG
(Rev.:2005)

CMOS SuperSync FIFO™ 8,192 x 18 16,384 x 18

Integrated Device Technology 

IDT72255LA/72265LA CMOS SuperSync FIFO™

8,192 x 18 and 16,384 x 18

COMMERCIAL AND INDUSTRIAL

TEMPERATURE RANGES

AC ELECTRICAL CHARACTERISTICS(1)

(Commercial: VCC = 5V ± 10%, TA = 0°C to +70°C; Industrial: VCC = 5V ± 10%, TA = –40°C to +85°C)

Symbol

fS

tA

tCLK

tCLKH

tCLKL

tDS

tDH

tENS

tENH

tLDS

tLDH

tRS

tRSS

tRSR

tRSF

tFWFT

tRTS

tOLZ

tOE

tOHZ

tWFF

tREF

tPAF

tPAE

tHF

tSKEW1

tSKEW2

tSKEW3

tSKEW4

Parameter

Clock Cycle Frequency

Data Access Time

Clock Cycle Time

Clock High Time

Clock Low Time

Data Setup Time

Data Hold Time

Enable Setup Time

Enable Hold Time

Load Setup Time

Load Hold Time

Reset Pulse Width(3)

Reset Setup Time

Reset Recovery Time

Reset to Flag and Output Time

Mode Select Time

Retransmit Setup Time

Output Enable to Output in Low Z(4)

Output Enable to Output Valid

Output Enable to Output in High Z(4)

Write Clock to FF or IR

Read Clock to EF or OR

Write Clock to PAF

Read Clock to PAE

Clock to HF

Skew time between RCLK and WCLK for FF/IR

Skew time between RCLK and WCLK for PAE and PAF

Skew time between RCLK and WCLK for EF/OR

Skew time between RCLK and WCLK for PAE and PAF

for Re-transmit operation

Commercial

IDT72255LA10

IDT72265LA10

Min.

Max.

—

100

2

8

10

—

4.5

—

4.5

—

3

—

0

—

3

—

0

—

3

—

0

—

10

—

10

—

10

—

—

10

0

—

3

—

0

—

2

6

2

6

—

8

—

8

—

8

—

8

—

16

5

—

12

—

60

—

15

—

Commercial & Industrial(2)

IDT72255LA15

IDT72255LA20

IDT72265LA15

IDT72265LA20

Min.

Max.

Min.

Max.

—

66.7

—

50

2

10

2

12

15

—

20

—

6

—

8

—

6

—

8

—

4

—

5

—

1

—

1

—

4

—

5

—

1

—

1

—

4

—

5

—

1

—

1

—

15

—

20

—

15

—

20

—

15

—

20

—

—

15

—

20

0

—

0

—

4

—

5

—

0

—

0

—

3

8

3

10

3

8

3

10

—

10

—

12

—

10

—

12

—

10

—

12

—

10

—

12

—

20

—

22

6

—

10

—

15

—

20

—

60

—

60

—

17

—

25

—

NOTES:

1. All AC timings apply to both Standard IDT mode and First Word Fall Through mode.

2. Industrial temperature range product for 15ns and 20ns speed grades are available as a standard device.

3. Pulse widths less than minimum values are not allowed.

4. Values guaranteed by design, not currently tested.

5V

1.1K

Unit

MHz

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

AC TEST CONDITIONS

Input Pulse Levels

Input Rise/Fall Times

Input Timing Reference Levels

Output Reference Levels

Output Load

GND to 3.0V

3ns

1.5V

1.5V

See Figure 2

D.U.T.

680Ω

30pF*

4670 drw04

Figure 2. Output Load

* Includes jig and scope capacitances.

6

OCTOBER 17, 2005

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