IDT7202LA20XEB 查看數據表（PDF） - Integrated Device Technology

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IDT7202LA20XEB

CMOS asynchronous FIFO 256 x 9, 512 x 9, 1K x 9

Integrated Device Technology 

IDT7201L/7201LA/7202LA CMOS ASYNCHRONOUS FIFO

256 x 9, 512 x 9 and 1,024 x 9

COMMERCIAL, INDUSTRIAL AND MILITARY

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; Military: VCC = 5V ± 10%, TA = –55°C to +125°C)

Symbol Parameter

Commercial

IDT7200L12

IDT7201LA12

IDT7202LA12

Min.

Max.

Com'l & Ind'l(2)

IDT7200L15

IDT7201LA15

IDT7202LA15

Min.

Max.

Com'l & Mil.

IDT7200L20

IDT7201LA20

IDT7202LA20

Min.

Max.

Com'l & Ind'l(2)

IDT7200L25

IDT7201LA25

IDT7202LA25

Min.

Max. Unit

tS

Shift Frequency

—

50

—

40

—

33.3

—

28.5 MHz

tRC

Read Cycle Time

20

—

25

—

30

—

35

—

ns

tA

Access Time

—

12

—

15

—

20

—

25

ns

tRR

Read Recovery Time

8

—

10

—

10

—

10

—

ns

tRPW

Read Pulse Width(3)

12

—

15

—

20

—

25

—

ns

tRLZ

Read Pulse Low to Data Bus at Low Z(4)

3

—

3

—

3

—

3

—

ns

tWLZ

Write Pulse High to Data Bus at Low Z(4,5)

5

—

5

—

5

—

5

—

ns

tDV

Data Valid from Read Pulse High

5

—

5

—

5

—

5

—

ns

tRHZ

Read Pulse High to Data Bus at High Z(4)

—

12

—

15

—

15

—

18

ns

tWC

Write Cycle Time

20

—

25

—

30

—

35

—

ns

tWPW WritePulseWidth(3)

12

—

15

—

20

—

25

—

ns

tWR

Write Recovery Time

8

—

10

—

10

—

10

—

ns

tDS

Data Set-up Time

9

—

11

—

12

—

15

—

ns

tDH

Data Hold Time

0

—

0

—

0

—

0

—

ns

tRSC

Reset Cycle Time

20

—

25

—

30

—

35

—

ns

tRS

Reset Pulse Width(3)

12

—

15

—

20

—

25

—

ns

tRSS

Reset Set-up Time(4)

12

—

15

—

20

—

25

—

ns

tRSR

Reset Recovery Time

8

—

10

—

10

—

10

—

ns

tRTC

Retransmit Cycle Time

20

—

25

—

30

—

35

—

ns

tRT

Retransmit Pulse Width(3)

12

—

15

—

20

—

25

—

ns

tRTS

Retransmit Set-up Time(4)

12

—

15

—

20

—

25

—

ns

tRTR

Retransmit Recovery Time

8

—

10

—

10

—

10

—

ns

tEFL

Reset to Empty Flag Low

—

12

—

25

—

30

—

35

ns

tHFH,FFH ResettoHalf-FullandFullFlagHigh

—

17

—

25

—

30

—

35

ns

tRTF

Retransmit Low to Flags Valid

—

20

—

25

—

30

—

35

ns

tREF

Read Low to Empty Flag Low

—

12

—

15

—

20

—

25

ns

tRFF

Read High to Full Flag High

tRPE

Read Pulse Width after EF High

—

14

—

15

—

20

—

25

ns

12

—

15

—

20

—

25

—

ns

tWEF Write High to Empty Flag High

—

12

—

15

—

20

—

25

ns

tWFF Write Low to Full Flag Low

—

14

—

15

—

20

—

25

ns

tWHF Write Low to Half-Full Flag Low

—

17

—

25

—

30

—

35

ns

tRHF

Read High to Half-Full Flag High

tWPF WritePulseWidthafterFFHigh

tXOL

Read/Write to XO Low

tXOH

Read/Write to XO High

tXI

XI Pulse Width(3)

tXIR

XI Recovery Time

tXIS

XI Set-up Time

—

17

—

25

—

30

—

35

ns

12

—

15

—

20

—

25

—

ns

—

12

—

15

—

20

—

25

ns

—

12

—

15

—

20

—

25

ns

12

—

15

—

20

—

25

—

ns

8

—

10

—

10

—

10

—

ns

8

—

10

—

10

—

10

—

ns

NOTES:

1. Timings referenced as in AC Test Conditions.

2. Industrial temperature range product for 15ns and 25ns speed grades are available as a standard device.

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

4. Values guaranteed by design, not currently tested.

5. Only applies to read data flow-through mode

4

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