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74F257APC 数据表(PDF) 4 Page - Fairchild Semiconductor

部件名 74F257APC
功能描述  Quad 2-Input Multiplexer with 3-STATE Outputs
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

74F257APC 数据表(HTML) 4 Page - Fairchild Semiconductor

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AC Electrical Characteristics
Symbol
Parameter
TA = +25°CTA = −55°C to +125°CTA = 0°C to +70°C
Units
VCC = 5.0V
VCC = 5.0V
VCC = 5.0V
CL = 50 pF
CL = 50 pF
CL = 50 pF
Min
Typ
Max
Min
Max
Min
Max
tPLH
Propagation Delay
2.5
4.5
5.5
2.0
7.0
2.0
6.0
ns
tPHL
In to Zn
2.04.2
5.51.5
7.02.0
6.0
tPLH
Propagation Delay
4.0
5.0
9.5
3.5
11.5
3.5
10.5
ns
tPHL
S to Zn
2.56.5
7.02.5
9.02.5
8.0
tPZH
Output Enable Time
2.0
5.9
6.0
2.0
8.0
2.0
7.0
ns
tPZL
2.55.5
7.02.5
9.02.5
8.0
tPHZ
Output Disable Time
2.0
4.3
6.0
2.0
7.0
2.0
7.0
tPLZ
2.04.5
6.02.0
8.52.0
7.0


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