74VHC595 查看數據表（PDF） - Fairchild Semiconductor
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74VHC595 Datasheet PDF : 9 Pages
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AC Operating Requirements
Symbol
Parameter
tS
tS
tS
tH
tH
tH
tW(L)
tW(L)
tW(H)
tW(L)
tW(H)
trem
Minimum Setup Time
(SER–SCK)
Minimum Setup Time
(SCK–RCK)
Minimum Setup Time
(SCLR –RCK)
Minimum Hold Time
(SER–SCK)
Minimum Hold Time
(SCK–RCK)
Minimum Hold Time
(SCLR –RCK)
Minimum Pulse Width
(SCLR)
Minimum Pulse Width
(SCK)
Minimum Pulse Width
(RCK)
Minimum Removal Time
(SCLR –SCK)
VCC
(V)
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
TA = 25°C
TA = −40°C to +85°C
Units
Typ
Guaranteed Minimum
3.5
3.5
ns
3.0
3.0
8.0
8.5
ns
5.0
5.0
8.0
9.0
ns
5.0
5.0
1.5
1.5
ns
2.0
2.0
0.0
0.0
ns
0.0
0.0
0.0
0.0
ns
0.0
0.0
5.0
5.0
ns
5.0
5.0
5.0
5.0
ns
5.0
5.0
5.0
5.0
ns
5.0
5.0
3.0
3.0
ns
2.5
2.5
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