74VHC595(2007) 查看數據表（PDF） - Fairchild Semiconductor
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74VHC595 Datasheet PDF : 12 Pages
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AC Operating Requirements
Symbol
Parameter
tS
Minimum Setup Time (SER–SCK)
tS
Minimum Setup Time (SCK–RCK)
tS
Minimum Setup Time (SCLR–RCK)
tH
Minimum Hold Time (SER–SCK)
tH
Minimum Hold Time (SCK–RCK)
tH
Minimum Hold Time (SCLR–RCK)
tW(L) Minimum Pulse Width (SCLR)
tW(L), tW(H) Minimum Pulse Width (SCK)
tW(L), tW(H) Minimum Pulse Width (RCK)
trem 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
Typ. Guaranteed Minimum Units
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
©1993 Fairchild Semiconductor Corporation
74VHC595 Rev. 1.2
8
www.fairchildsemi.com
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