3

COMMERCIALTEMPERATURERANGE

IDT7280/7281/7282/7283/7284/7285 5V ASYNCHRONOUS FIFO

DUAL 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9

JUNE 29, 2012

Commercial

Commercial & Industrial(2)

IDT7280L12

IDT7280L15

IDT7281L12

IDT7281L15

IDT7282L12

IDT7282L15

IDT7283L12

IDT7283L15

IDT7284L12

IDT7284L15

IDT7285L12

IDT7285L15

Symbol

Parameter

Min.

Max.

Min.

Max.

Unit

tS

ShiftFrequency

—

50

—

40

MHz

tRC

Read Cycle Time

20

—

25

—

ns

tA

AccessTime

—

12

—

15

ns

tRR

ReadRecoveryTime

8

—

10

—

ns

tRPW

ReadPulseWidth(3)

12

—

15

—

ns

tRLZ

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

3—

3

—

ns

tWLZ

WritePulseHightoDataBusatLowZ(4,5)

5—

5

—

ns

tDV

DataValidfromReadPulseHigh

5

—

5

—

ns

tRHZ

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

—12

—

15

ns

tWC

WriteCycleTime

20

—

25

—

ns

tWPW

WritePulseWidth(3)

12

—

15

—

ns

tWR

WriteRecoveryTime

8

—

10

—

ns

tDS

DataSet-upTime

9

—

11

—

ns

tDH

DataHoldTime

0

—

0

—

ns

tRSC

Reset Cycle Time

20

—

25

—

ns

tRS

ResetPulseWidth(3)

12

—

15

—

ns

tRSS

ResetSet-upTime(4)

12

—

15

—

ns

tRSR

ResetRecoveryTime

8

—

10

—

ns

tRTC

RetransmitCycleTime

20

—

25

—

ns

tRT

RetransmitPulseWidth(3)

12

—

15

—

ns

tRTS

RetransmitSet-upTime(4)

12

—

15

—

ns

tRTR

RetransmitRecoveryTime

8

—

10

—

ns

tEFL

Reset to Empty Flag Low

—

12

—

25

ns

tHFH,FFH

ResettoHalf-FullandFullFlagHigh

—

17

—

25

ns

tRTF

RetransmitLowtoFlagsValid

—

20

—

25

ns

tREF

Read Low to Empty Flag Low

—

12

—

15

ns

tRFF

Read High to Full Flag High

—

14

—

15

ns

tRPE

ReadPulseWidthafterEFHigh

12

—

15

—

ns

tWEF

Write High to Empty Flag High

—

12

—

15

ns

tWFF

Write Low to Full Flag Low

—

14

—

15

ns

tWHF

WriteLowtoHalf-FullFlagLow

—

17

—

25

ns

tRHF

ReadHightoHalf-FullFlagHigh

—

17

—

25

ns

tWPF

WritePulseWidthafterFFHigh

12

—

15

—

ns

tXOL

Read/WritetoXOLow

—

12

—

15

ns

tXOH

Read/WritetoXOHigh

—

12

—

15

ns

tXI

XIPulseWidth(3)

12

—

15

—

ns

tXIR

XI Recovery Time

8

—

10

—

ns

tXIS

XISet-upTime

8

—

10

—

ns

NOTES:

1. Timings referenced as in AC Test Conditions.

2. Industrial temperature range product for the 15ns speed grade is 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.

AC ELECTRICAL CHARACTERISTICS(1)

(Commercial: VCC = 5V ± 10%, TA = 0

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