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74F244 数据表(PDF) 4 Page - Fairchild Semiconductor

部件名 74F244
功能描述  Octal Buffers/Line Drivers 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

74F244 数据表(HTML) 4 Page - Fairchild Semiconductor

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4
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
3.0
5.1
7.0
3.0
9.0
3.0
8.0
ns
tPHL
Data to Output (74F240)
2.0
3.5
4.7
2.0
6.0
2.0
5.7
tPZH
Output Enable Time (74F240)
2.0
3.5
4.7
2.0
6.5
2.0
5.7
ns
tPZL
4.0
6.9
9.0
4.0
10.5
4.0
10.0
tPHZ
Output Disable Time (74F240)
2.0
4.0
5.3
2.0
6.5
2.0
6.3
tPLZ
2.0
6.0
8.0
2.0
12.5
2.0
9.5
tPLH
Propagation Delay
2.5
4.0
5.2
2.0
6.5
2.5
6.2
ns
tPHL
Data to Output (74F241, 74F244)
2.5
4.0
5.2
2.0
7.0
2.5
6.5
tPZH
Output Enable Time
2.0
4.3
5.7
2.0
7.0
2.0
6.7
ns
tPZL
(74F241, 74F244)
2.0
5.4
7.0
2.0
8.5
2.0
8.0
tPHZ
Output Disable Time
2.0
4.5
6.0
2.0
7.0
2.0
7.0
tPLZ
(74F241, 74F244)
2.0
4.5
6.0
2.0
7.5
2.0
7.0


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