74F191 Просмотр технического описания (PDF) - Philips Electronics
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74F191 Datasheet PDF : 14 Pages
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Philips Semiconductors
Up/Down binary counter with reset and ripple clock
Product specification
74F191
AC SETUP REQUIREMENTS
SYMBOL
PARAMETER
ts(H)
ts(L)
th(H)
th(L)
ts(L)
th(L)
ts(H)
ts(L)
th(H)
th(L)
tw(H)
tw(L)
tw(L)
trec
Setup time, High or Low
Dn to PL
Hold time, High or Low
Dn to PL
Setup time, Low CE to CP
Hold time, Low CE to CP
Setup time, High or Low
U/D to CP
Hold time, High or Low
U/D to CP
CP Pulse width, High or Low
PL Pulse width, Low
Recovery time, PL to CP
TEST CONDITIONS
Waveform 6
Waveform 6
Waveform 6
Waveform 6
Waveform 6
Waveform 6
Waveform 1
Waveform 5
Waveform 5
LIMITS
Tamb= +25°C
VCC = +5.0V
CL = 50pF, RL = 500Ω
Min
Typ
Max
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF, RL = 500Ω
Min
Max
4.5
5.0
4.5
5.0
2.0
2.0
2.0
2.0
10.0
10.0
0
0
12.0
12.0
12.0
12.0
0
0
0
0
3.5
3.5
6.0
6.0
6.0
6.0
6.0
6.0
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1995 Jul 17
8
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