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74F191 Datasheet(PDF) 7 Page - NXP Semiconductors

Part # 74F191
Description  Up/down binary counter with reset and ripple clock
PDF  14 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74F191 Datasheet(HTML) 7 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74F191
Up/Down binary counter with reset and ripple clock
1995 Jul 17
7
AC ELECTRICAL CHARACTERISTICS
LIMITS
Tamb= +25°C
Tamb= 0°C to +70°C
SYMBOL
PARAMETER
TEST CONDITIONS
VCC = +5.0V
VCC = +5.0V ± 10%
UNIT
CL = 50pF, RL = 500Ω
CL = 50pF, RL = 500Ω
Min
Typ
Max
Min
Max
fMAX
Maximum clock frequency
to Qn outputs
Waveform 1
100
125
90
MHz
fMAX
Maximum clock frequency
to RC outputs
Waveform 1
85
95
75
MHz
tPLH
tPHL
Propagation delay
CP to Qn
Waveform 1
2.5
5.0
4.5
7.5
8.0
11.5
2.0
5.0
8.5
12.0
ns
ns
tPLH
tPHL
Propagation delay
CP to TC
Waveform 1
6.5
6.0
9.0
8.0
12.5
11.0
6.0
6.0
13.0
12.0
ns
ns
tPLH
tPHL
Propagation delay
CP to RC
Waveform 2
2.5
3.0
4.5
5.0
7.5
7.5
2.0
2.5
8.0
8.0
ns
ns
tPLH
tPHL
Propagation delay
CE to RC
Waveform 2
2.0
3.0
4.0
5.0
7.0
7.5
2.0
3.0
7.5
8.0
ns
ns
tPLH
tPHL
Propagation delay
U/D to RC
Waveform 2
8.0
4.5
11.0
7.5
16.0
10.5
8.0
4.0
17.0
11.0
ns
ns
tPLH
tPHL
Propagation delay
U/D to TC
Waveform 4
4.0
3.0
6.5
6.0
9.5
9.5
3.0
3.0
10.5
10.0
ns
ns
tPLH
tPHL
Propagation delay
Dn to Qn
Waveform 3
2.0
6.5
4.0
9.0
7.0
12.0
1.5
6.5
7.5
13.0
ns
ns
tPLH
tPHL
Propagation delay
Dn to TC
Waveform 3
Waveform 4
5.5
6.5
9.5
9.5
13.0
13.0
5.0
6.0
14.0
14.0
ns
ns
tPLH
tPHL
Propagation delay
Dn to RC
Waveform 3
Waveform 4
6.0
6.0
14.0
11.0
18.0
13.5
6.0
6.0
19.5
15.0
ns
ns
tPLH
tPHL
Propagation delay
PL to Qn
Waveform 5
4.5
5.5
6.5
8.0
9.5
11.5
4.0
5.0
10.5
12.0
ns
ns
tPLH
tPHL
Propagation delay
PL to TC
Waveform 5
5.5
6.0
8.5
10.5
12.0
13.5
5.5
6.0
13.0
14.5
ns
ns
tPLH
tPHL
Propagation delay
PL to RC
Waveform 5
8.5
7.5
16.0
10.0
18.5
13.0
8.5
7.0
21.0
13.5
ns
ns



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