IDT72V81L20PA データシートの表示（PDF） - Integrated Device Technology

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IDT72V81L20PA

3.3 Volt CMOS DUAL ASYNCHRONOUS FIFO

Integrated Device Technology 

IDT72V81/72V82/72V83/72V84/72V85

Commercial Temperature Range

AC ELECTRICAL CHARACTERISTICS(1)

(Commercial: VCC = 3.3V±0.3V, TA = 0°C to +70°C)

Commercial

IDT72V81L15

IDT72V82L15

IDT72V83L15

IDT72V84L15

IDT72V85L15

IDT72V81L20

IDT72V82L20

IDT72V83L20

IDT72V84L20

IDT72V85L20

Symbol

Parameter

tS

Shift Frequency

tRC

Read Cycle Time

tA

Access Time

tRR

Read Recovery Time

tRPW

Read Pulse Width(2)

tRLZ

Read Pulse Low to Data Bus at Low Z(3)

tWLZ

Write Pulse High to Data Bus at Low Z(3, 4)

tDV

Data Valid from Read Pulse High

tRHZ

Read Pulse High to Data Bus at High Z(3)

tWC

Write Cycle Time

tWPW

Write Pulse Width(2)

tWR

Write Recovery Time

tDS

Data Set-up Time

tDH

Data Hold Time

tRSC

Reset Cycle Time

tRS

Reset Pulse Width(2)

tRSS

Reset Set-up Time(3)

tRSR

Reset Recovery Time

tRTC

Retransmit Cycle Time

tRT

Retransmit Pulse Width(2)

tRTS

Retransmit Set-up Time(3)

tRTR

Retransmit Recovery Time

tEFL

Reset to Empty Flag Low

tHFH,FFH

Reset to Half-Full and Full Flag High

tRTF

Retransmit Low to Flags Valid

tREF

Read Low to Empty Flag Low

tRFF

Read High to Full Flag High

tRPE

ReadPulseWidthafter EFHigh

tWEF

Write High to Empty Flag High

tWFF

Write Low to Full Flag Low

tWHF

Write Low to Half-Full Flag Low

tRHF

Read High to Half-Full Flag High

tWPF

WritePulseWidthafter FFHigh

tXOL

Read/Write to XO Low

tXOH

Read/Write to XO High

tXI

XI Pulse Width(2)

tXIR

XI Recovery Time

tXIS

XI Set-up Time

NOTES:

1. Timings referenced as in AC Test Conditions.

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

3. Values guaranteed by design, not currently tested.

4. Only applies to read data flow-through mode.

Min.

Max.

Min.

Max.

Unit

—

40

—

33.3

MHz

25

—

30

—

ns

—

15

—

20

ns

10

—

10

—

ns

15

—

20

—

ns

3

—

3

—

ns

5

—

5

—

ns

5

—

5

—

ns

—

15

—

15

ns

25

—

30

—

ns

15

—

20

—

ns

10

—

10

—

ns

11

—

12

—

ns

0

—

0

—

ns

25

—

30

—

ns

15

—

20

—

ns

15

—

20

—

ns

10

—

10

—

ns

25

—

30

—

ns

15

—

20

—

ns

15

—

20

—

ns

10

—

10

—

ns

—

25

—

30

ns

—

25

—

30

ns

—

25

—

30

ns

—

15

—

20

ns

—

15

—

20

ns

15

—

20

—

ns

—

15

—

20

ns

—

15

—

20

ns

—

25

—

30

ns

—

25

—

30

ns

15

—

20

—

ns

—

15

—

20

ns

—

15

—

20

ns

15

—

20

—

ns

10

—

10

—

ns

10

—

10

—

ns

3

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