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: 138/151页
文件大小: 2680K
代理商: OR4E062BM680-DB
Lattice Semiconductor
87
Data Sheet
September, 2002
ORCA Series 4 FPGAs
TimingCharacteristics(continued)
Table51.PrimaryCLK(PCLK)toOutputDelaywithouton-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;
CL = 30 p.
Notes:
1. Timingiswithouttheuseofthephase-lockedloops(PLLs).
2. Thisclockdelayisforafullyroutedclocktreethatusestheprimaryclocknetwork.ItincludesboththeLVTTL(3.3V)inputclockbufferdelay,
theclockroutingtothePIOCLKinput,theclock→QoftheFF,andthedelaythroughtheLVTTL(3.3V)dataoutputbuffer.ThePCLKinput
clockisconnectedatthesemi-dedicatedprimaryclockinputpins.
3. FortimingimprovementsusingotherI/Obuffertypesfortheinputclockbufferoroutputdatabuffer,seeTable45andTable47.
5-4846(F).b
Figure49.PrimaryClocktoOutputDelay
Table52.PrimaryCLK(PCLK)toOutputDelayusingon-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;
CL = 30 p.
Notes:
1. TimingusestheautomaticdelaycompensationmodeofthePLLs.ThefeedbacktothePLLisprovidedbytheglobalsystemclockrouting.
OtherdelayvaluesarepossiblebyusingthephasemodificationsmodeofthePLLinstead.
2. Thisclockdelayisforafullyroutedclocktreethatusestheprimaryclocknetwork.ItincludesboththeLVTTL(3.3V)inputclockbufferdelay,
aPLLblock,theclockroutingtothePIOCLKinput,theclock→QoftheFF,andthedelaythroughtheLVTTL(3.3V)dataoutputbuffer.The
PCLKinputclockisconnectedatthesemi-dedicatedPLLinputpin.
3. FortimingimprovementsusingotherI/Obuffertypesfortheinputclockbufferoroutputdatabuffer,seeTable45andTable47.
Description
Device
Speed
Unit
-1
-2
-3
Min
Max
Min
Max
Min
Max
PCLKInputPin→OUTPUTPin(LVTTL-12mAFast)
OR4E02
OR4E04
OR4E06
9.00
9.24
9.42
8.03
8.23
8.41
7.28
7.46
7.62
ns
Description
Device
Speed
Unit
-1
-2
-3
Min
Max
Min
Max
Min
Max
PCLKInputPin→OUTPUTPin(LVTTL-12mAFast)
All
5.84
5.27
4.78
ns
PLLDelayAdjustmentsfromCycleStealing(usedto
reduceclk->outbythemindelayvalueshown):
OneDelayCell
TwoDelayCells
ThreeDelayCells
PLLCDEL1
PLLCDEL2
PLLCDEL3
0.89
1.64
2.43
0.70
1.29
1.98
0.64
1.18
1.80
ns
OUTPUT(30pFLOAD)
Q
D
PCLK
PIOFF
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