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: 143/151页
文件大小: 2680K
代理商: OR4E062BM680-DB
Lattice Semiconductor
91
Data Sheet
September, 2002
ORCA Series 4 FPGAs
TimingCharacteristics(continued)
Table56.PrimaryCLK(PCLK)Setup/HoldTimeusingon-chipPLLs(Pin-to-Pin)
OR4Exxx industrial: VDD15 = 1.425 V to 1.575 V, VDD33 = 3.0 V to 3.6 V, VDDIO = 3.0 V to 3.6 V, –40 °C
< TJ
< +85 °C.
Notes:
1. Thepin-to-pintimingparametersinthistablewillmatchORCAFoundryiftheclockdelaymultiplierinthesetuppreferenceissetto0.95for
setuptimeand1.05forholdtime.
2. TimingusestheautomaticdelaycompensationmodeofthePLLs.ThefeedbacktothePLLisprovidedbytheglobalsystemclockrouting.
OtherdelayvaluesarepossiblebyusingthephasemodificationsmodeofthePLLinstead.
3. Thissetup/holdtimeisforafullyroutedclocktreethatusestheprimaryclocknetwork.ItincludesboththeLVTTL(3.3V)inputclockbuffer
delay,PLLblock,theclockroutingtothePIOCLKinput,thesetup/holdtimeofthePIOFF(withthedatainputdelaydisabled)andthe
LVTTL(3.3V)inputdatabuffertoPIOFFdelay.ThePCLKinputclockisconnectedatthesemi-dedicatedPLLinputpin.
4. NotethatthePIOcyclestealingdelayadjustmentsandthePLLcyclestealingdelayadjustmentsareeachattemptingtopullthesameclock
inbothdirections.Ifbotharebeingused,thenthedifferencebetweenthemwillprovidethebasisforPIOsetupandholdtimes.
5. FortimingimprovementsusingotherI/Obuffertypesfortheinputclockbufferorinputdatabuffer,seeTable45.
Description
Device
Speed
Unit
-1
-2
-3
Min Max Min Max Min Max
Input to PCLK Setup Time, Input Data Delay Enabled
All
7.73
7.30
6.66
ns
Input to PCLK Setup Time, No Input Data Delay
All
0.00
0.00
0.00
ns
Input to PCLK Hold Time, Input Data Delay Enabled
All
0.00
0.00
0.00
ns
Input to PCLK Hold Time, No Input Data Delay
All
1.82
1.73
1.57
ns
Input Delay Adjustments from PIO Cycle Stealing
(typically used to reduce setup time by the min value
shown):
One Delay Cell
Two Delay Cells
Three Delay Cells
ICYCDEL1
ICYCDEL2
ICYCDEL3
0.89
1.64
2.43
0.70
1.29
1.98
0.64
1.18
1.80
ns
PLL Delay Adjustments from Cycle Stealing (used to
reduce hold by the min delay value shown):
One Delay Cell
Two Delay Cells
Three Delay Cells
PLLCDEL1
PLLCDEL2
PLLCDEL3
0.89
1.64
2.43
0.70
1.29
1.98
0.64
1.18
1.80
ns
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