參數(shù)資料
型號: IDT7284L20PAI
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: FIFO
英文描述: 4K X 9 BI-DIRECTIONAL FIFO, 20 ns, PDSO56
封裝: TSSOP-56
文件頁數(shù): 5/11頁
文件大小: 143K
代理商: IDT7284L20PAI
3
IDT
IDT7280/81/82
AC ELECTRICAL CHARACTERISTICS(1)
(Commercial: VCC = 5V ± 10%, TA = 0oC to +70oC; Industrial: VCC = 5V ± 10%, TA = –40oC to +85oC)
Commercial
Com'l & Ind'l
(2)
7280L12
7280L15
7280L20
7281L12
7281L15
7281L20
7282L12
7282L15
7282L20
7283L12
7283L15
7283L20
7284L12
7284L15
7284L20
7285L12
7285L15
7285L20
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
tS
ShiftFrequency
50
40
33.3
MHz
tRC
Read Cycle Time
20
25
30
ns
tA
AccessTime
12
15
20
ns
tRR
ReadRecoveryTime
8
10
10
ns
tRPW
ReadPulseWidth
(3)
12
15
20
ns
tRLZ
Read Pulse Low to Data Bus at Low Z
(4)
3—
3
3
ns
tWLZ
Write Pulse High to Data Bus at Low Z
(4,5)
5—
5
5
ns
tDV
Data Valid from Read Pulse High
5
5
5
ns
tRHZ
Read Pulse High to Data Bus at High Z
(4)
—12
15
15
ns
tWC
Write Cycle Time
20
25
30
ns
tWPW
WritePulseWidth
(3)
12
15
20
ns
tWR
WriteRecoveryTime
8
10
10
ns
tDS
DataSet-upTime
9
11
12
ns
tDH
DataHoldTime
0
0
0
ns
tRSC
Reset Cycle Time
20
25
30
ns
tRS
ResetPulseWidth
(3)
12
15
20
ns
tRSS
ResetSet-upTime
(4)
12
15
20
ns
tRSR
ResetRecoveryTime
8
10
10
ns
tRTC
RetransmitCycleTime
20
25
30
ns
tRT
RetransmitPulseWidth
(3)
12
15
20
ns
tRTS
RetransmitSet-upTime
(4)
12
15
20
ns
tRTR
RetransmitRecoveryTime
8
10
10
ns
tEFL
Reset to Empty Flag Low
12
25
30
ns
tHFH,FFH
ResettoHalf-FullandFullFlagHigh
17
25
30
ns
tRTF
RetransmitLowtoFlagsValid
20
25
30
ns
tREF
Read Low to Empty Flag Low
12
15
20
ns
tRFF
Read High to Full Flag High
14
15
20
ns
tRPE
ReadPulseWidthafter
EFHigh
12
15
20
ns
tWEF
Write High to Empty Flag High
12
15
20
ns
tWFF
Write Low to Full Flag Low
14
15
20
ns
tWHF
Write Low to Half-Full Flag Low
17
25
30
ns
tRHF
Read High to Half-Full Flag High
17
25
30
ns
tWPF
WritePulseWidthafter
FFHigh
12
15
20
ns
tXOL
Read/Writeto
XOLow
12
15
20
ns
tXOH
Read/Writeto
XOHigh
12
15
20
ns
tXI
XIPulseWidth(3)
12
15
20
ns
tXIR
XIRecovery Time
8
10
10
ns
tXIS
XISet-upTime
8
10
10
ns
NOTES:
3208 tbl 06
1. Timings referenced as in AC Test Conditions.
2. Industrial temperature range is available by special order for speed grades faster than 20ns.
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.
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