IDT72265LA View Datasheet(PDF) - Integrated Device Technology

Part Name

Description

View to exact match

IDT72265LA

CMOS SUPERSYNC FIFO 8,192 x 18 16,384 x 18

Integrated Device Technology 

IDT72255LA/72265LA SUPERSYNC FIFO™

8,192 x 18, 16,384 x 18

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE

AC ELECTRICAL CHARACTERISTICS(1)

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

Commercial

IDT72255LA10

IDT72265LA10

Com’l & Ind’l(1)

IDT72255LA15

IDT72255LA20

IDT72265LA15

IDT72265LA20

Symbol

Parameter

Min.

Max.

Min.

Max.

Min.

Max.

fS

Clock Cycle Frequency

—

100

—

66.7

—

50

tA

Data Access Time

2

8

2

10

2

12

tCLK

Clock Cycle Time

10

—

15

—

20

—

tCLKH

Clock High Time

4.5

—

6

—

8

—

tCLKL

Clock Low Time

4.5

—

6

—

8

—

tDS

Data Setup Time

3

—

4

—

5

—

tDH

Data Hold Time

0

—

1

—

1

—

tENS

Enable Setup Time

3

—

4

—

5

—

tENH

Enable Hold Time

0

—

1

—

1

—

tLDS

Load Setup Time

3

—

4

—

5

—

tLDH

Load Hold Time

0

—

1

—

1

—

tRS

Reset Pulse Width(3)

10

—

15

—

20

—

tRSS

Reset Setup Time

10

—

15

—

20

—

tRSR

Reset Recovery Time

10

—

15

—

20

—

tRSF

Reset to Flag and Output Time

—

10

—

15

—

20

tFWFT

Mode Select Time

0

—

0

—

0

—

tRTS

Retransmit Setup Time

3

—

4

—

5

—

tOLZ

Output Enable to Output in Low Z(4)

0

—

0

—

0

—

tOE

Output Enable to Output Valid

2

6

3

8

3

10

tOHZ

Output Enable to Output in High Z(4)

tWFF

Write Clock to FF or IR

tREF

Read Clock to EF or OR

tPAF

Write Clock to PAF

tPAE

Read Clock to PAE

tHF

Clock to HF

2

6

3

8

3

10

—

8

—

10

—

12

—

8

—

10

—

12

—

8

—

10

—

12

—

8

—

10

—

12

—

16

—

20

—

22

tSKEW1 Skew time between RCLK and WCLK

5

—

6

—

10

—

for FF/IR

tSKEW2 Skew time between RCLK and WCLK

12

—

15

—

20

—

for PAE and PAF

tSKEW3 Skew time between RCLK and WCLK

60

—

60

—

60

—

for EF/OR

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 grade 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

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 1

D.U.T.

680Ω

30pF*

4670 drw 04

Figure 2. Output Load

* Includes jig and scope capacitances.

6

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