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TYPICALCHARACTERISTICS
0
2
4
6
8
10
0 50 100 150 200
t
pd
- 传播 延迟 time - ns
C
L
- 加载 电容 - pf
t
PLH
t
PHL
输出
3.7 v
2.7 v
3.2 v
V
OH
V OL
1.5 v
t
THL
t
PHL
t
PLH
t
TLH
20%
80%
20%
80%
输入
输入
tb5r1,tb5r2
SLLS588B–NOVEMBER2003–REVISEDMAY2004
TYPICALPROPAGATIONDELAY
vs
LOADCAPACITANCE
一个.便条
:
thisgraphisincludedasanaidtothesystemdesigners.totalcircuitdelayvarieswithloadcapacitance.这
totaldelayisthesumofthedelayduetoexternalcapacitanceandtheintrinsicdelayofthedevice.intrinsicdelayis
listedinthetableaboveasthe0pfloadcondition.theincrementalincreaseindelaybetweenthe0pfload
conditionandtheactualtotalloadcapacitancerepresentstheextrinsic,orexternaldelaycontributedbytheload.
figure1.typicalpropagationdelay
vs
LoadCapacitanceat25
°
C
figure2.receiverpropagationdelaytimes
5
: 点此下载
