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74F579 Datasheet(PDF) 5 Page - Fairchild Semiconductor

Part No. 74F579
Description  8-Bit Bidirectional Binary Counter with 3-STATE Outputs
Download  7 Pages
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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74F579 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
70
85
80
tPLH
Propagation Delay
3.0
5.0
7.5
3.0
8.0
ns
tPHL
CP to I/On
5.0
8.0
11.5
5.0
11.5
tPLH
Propagation Delay
5.0
7.5
11.5
5.0
12.0
ns
tPHL
CP to TC
5.0
7.0
11.5
5.0
12.0
tPLH
Propagation Delay
4.5
7.0
9.0
4.5
10.0
ns
tPHL
U/D to TC
4.5
8.0
9.5
4.5
10.0
tPLH
Propagation Delay
2.5
3.8
6.0
2.5
6.5
ns
tPHL
CEP or CET to TC
3.56.0
8.03.5
8.5
tPHL
Propagation Delay
5.0
7.5
10.0
5.0
10.0
ns
MR to I/On
tPHL
Propagation Delay
6.5
10.0
13.0
6.5
13.5
ns
MR to TC
tPZH
Output Enable Time
3.0
5.0
8.5
3.0
9.0
ns
tPZL
CS or PE to I/O
5.5
8.0
10.5
5.5
11.5
tPHZ
Output Disable Time
2.0
5.0
8.5
2.0
9.0
ns
tPLZ
CS or PE to I/O
2.04.5
8.02.0
8.5
tPZH
Output Enable Time
3.0
5.0
8.0
3.0
8.5
ns
tPZL
OE to I/On
5.0
8.0
11.0
5.0
12.0
tPHZ
Output Disable Time
2.0
4.0
6.5
2.0
6.5
ns
tPLZ
OE to I/On
2.04.0
6.02.0
6.5
Symbol
Parameter
TA = +25°CTA = 0°C to +70°C
Units
VCC = +5.0V
VCC = +5.0V
Min
Typ
Max
Min
Max
tS(H)
Setup Time
4.0
4.0
ns
tS(L)
I/On to CP
4.0
4.0
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
9.5
ns
tS(L)
PE, CS or SR to CP
9.5
9.5
tH(H)
Hold Time
0.0
0.0
ns
tH(L)
PE, CS or SR to CP
0.0
0.0
tS(H)
Setup Time
6.5
6.5
ns
tS(L)
CET or CEP to CP
9.5
9.5
tH(H)
Hold Time
0.0
0.0
ns
tH(L)
CET or CEP to CP
0.0
0.0
tS(H)
Setup Time
9.0
9.5
ns
tS(L)
U/D to CP
9.0
9.5
tH(H)
Hold Time
0.0
0.0
ns
tH(L)
U/D to CP
0.0
0.0
tW(H)
Clock Pulse Width
4.5
4.5
ns
tW(L)
HIGH or LOW
4.5
4.5
tW(L)
MR Pulse Width
3.0
3.0
ns
tREC
Recovery Time
4.0
4.0
ns
MR to CP


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