参数资料
型号: OR4E062BM680-DB
厂商: LATTICE SEMICONDUCTOR CORP
元件分类: FPGA
英文描述: FPGA, 2024 CLBS, 515000 GATES, PBGA680
封装: PLASTIC, FBGA-680
文件页数: 131/151页
文件大小: 2680K
代理商: OR4E062BM680-DB
80
Lattice Semiconductor
Data Sheet
September, 2002
ORCA Series 4 FPGAs
TimingCharacteristics(continued)
PropagationDelay—Thetimebetweenthespecifiedreferencepoints.Thedelaysprovidedaretheworstcaseof
thetphhandtplldelaysfornoninvertingfunctions,tplhandtphlforinvertingfunctions,andtphzandtplzfor3-state
enable.
SetupTime—Theintervalimmediatelyprecedingthetransitionofaclockorlatchenablesignal,duringwhichthe
datamustbestabletoensureitisrecognizedastheintendedvalue.
HoldTime—Theintervalimmediatelyfollowingthetransitionofaclockorlatchenablesignal,duringwhichthe
datamustbeheldstabletoensureitisrecognizedastheintendedvalue.
3-StateEnable—Thetimefromwhena3-statecontrolsignalbecomesactiveandtheoutputpadreachesthe
high-impedancestate.
Table 39. PFU Timing Parameters
OR4Exx industrial: VDD15 = 1.425 V, VDD33 = 3.0 V, TJ = +85 C
Note:
AcompletelistingofPFUTimingParameterscanbedisplayedinORCAFoundry2001.Thisisasamplingofthekeytimingparameters.
Parameter
Symbol
Speed
Unit
–1
–2
–3
Min Max Min Max
Min
Max
Combinatorial Delays:
Four-input Variables to LUT out
Five-input Variables to LUT out
Six-input Variables to LUT out
F4_DEL
F5_DEL
F6_DEL
0.66
0.77
1.10
0.55
0.64
0.81
0.50
0.58
0.74
ns
Sequential Delays:
CLK Low Time
CLK High Time
Four-input Variables to Register CLK setup
Five-input Variables to Register CLK setup
Six-input Variables to Register CLK setup
Data In to Register CLK setup
Four-input Variables from Register CLK hold
Five-input Variables from Register CLK hold
Six-input Variables from Register CLK hold
Data In from Register CLK hold
Register CLK to Out
CLKL_MPW
CLKH_MPW
F4_SET
F5_SET
F6_SET
DIN_SET
F4_HLD
F5_HLD
F6_HLD
DIN-HLD
REG_DEL
0.36
0.40
0.28
0.38
0.71
0.00
0.10
0.00
0.25
1.03
0.35
0.38
0.23
0.28
0.63
0.00
0.16
0.10
0.24
0.92
0.32
0.35
0.21
0.25
0.57
0.00
0.15
0.09
0.22
0.84
ns
PFU CLK to Out (REG_DEL) Delay Adjustments
from Cycle Stealing:
One Delay Cell
Two Delay Cells
Three Delay Cells
CYCDEL1
CYCDEL2
CYCDEL3
0.89
1.64
2.43
0.70
1.29
1.98
0.64
1.18
1.80
ns
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