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74F779 Datasheet(PDF) 5 Page - Fairchild Semiconductor

Part No. 74F779
Description  8-Bit Bidirectional Binary Counter with 3-STATE Outputs
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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74F779 Datasheet(HTML) 5 Page - Fairchild Semiconductor

   
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AC Electrical Characteristics
AC Operating Requirements
Symbol
Parameter
TA = +25°CTA = 0°C to +70°C
Units
VCC = +5.0V
VCC = +5.0V
CL = 50 pF
CL = 50 pF
Min
Typ
Max
Min
Max
fMAX
Maximum Clock Frequency
100
105
90
tPLH
Propagation Delay
3.0
5.0
8.0
3.0
8.5
ns
tPHL
CP to I/On
5.0
7.5
11.0
5.0
11.0
tPLH
Propagation Delay
5.0
7.5
9.0
5.0
10.0
ns
tPHL
CP to TC
5.0
9.3
10.5
5.0
11.5
tPLH
Propagation Delay
2.5
3.8
5.5
2.5
6.0
ns
tPHL
CET to TC
4.56.1
8.04.5
8.5
tPLH
Propagation Delay
3.5
6.5
12.0
3.5
13.0
ns
tPHL
SN to TC
3.5
7.5
12.0
3.5
13.0
tPZH
Output Enable Time
3.0
5.0
7.0
3.0
8.0
ns
tPZL
OE to I/On
5.0
8.0
10.0
5.0
10.5
tPHZ
Output Disable Time
1.0
4.0
6.5
1.0
7.0
ns
tPLZ
OE to I/On
1.03.7
6.51.0
7.0
Symbol
Parameter
TA = +25°CTA = 0°C to +70°C
Units
VCC = +5.0V
VCC = +5.0V
MinMax
MinMax
tS(H)
Setup Time
5.0
5.0
ns
tS(L)
I/On to CP
5.0
5.0
tH(H)
Hold Time
0.0
0.0
ns
tH(L)
I/On to CP
0.0
0.0
tS(H)
Setup Time
9.5
10.0
ns
tS(L)
Sn to CP
9.5
10.0
tH(H)
Hold Time
0.0
0.0
ns
tH(L)
Sn to CP
0.0
0.0
tS(H)
Setup Time
7.0
7.0
ns
tS(L)
CET to CP
7.0
7.0
tH(H)
Hold Time
0.0
0.0
ns
tH(L)
CET to CP
0.0
0.0
tW(H)
Clock Pulse Width
4.0
4.0
ns
tW(L)
HIGH or LOW
4.0
4.0


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