74F198 查看數據表（PDF） - Philips Electronics
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74F198 Datasheet PDF : 12 Pages
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Philips Semiconductors
8-bit bidirectional universal shift register
Product specification
74F198
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
fMAX
tPLH
tPHL
tPHL
Maximum clock frequency
Propagation delay
CP to Qn
Propagation delay
AC SETUP REQUIREMENTS
SYMBOL
PARAMETER
tS(H)
tS((L)
th(H)
th(L)
tS(H)
tS(L)
th(H)
th(L)
tS(H)
tS(L)
th(H)
th(L)
tw(H)
tw(L)
tw(L)
tREC
Setup time, High or Low
Dn to CP
Hold time, High or Low
Dn to CP
Setup time, High or Low
DSR, DSL to CP
Hold time, High or Low
DSR, DSL to CP
Setup time, High or Low
Sn to CP
Hold time, High or Low
Sn to CP
CP Pulse width,
High or Low
MR Pulse width, Low
Recovery time MR to CP
TEST
CONDITION
Waveform 1
Waveform 1
Waveform 3
LIMITS
VCC = +5.0V
Tamb = +25°C
CL = 50pF, RL = 500Ω
MIN TYP MAX
VCC = +5.0V ± 10%
Tamb = 0°C to +70°C
CL = 50pF, RL = 500Ω
MIN
MAX
80
95
70
5.0
7.5 10.0
4.5
11.0
6.0
8.5 11.0
5.5
12.0
5.0
7.5 10.0
4.5
11.0
UNIT
MHz
ns
ns
TEST
CONDITION
Waveform 2
Waveform 2
Waveform 2
Waveform 2
Waveform 2
Waveform 2
Waveform 1
Waveform 3
Waveform 3
LIMITS
VCC = +5.0V
Tamb = +25°C
CL = 50pF, RL = 500Ω
VCC = +5.0V ± 10%
Tamb = 0°C to +70°C
CL = 50pF, RL = 500Ω
MIN TYP MAX
MIN
MAX
0.0
0.0
3.0
3.0
0.0
1.0
3.5
4.0
0.0
0.0
3.0
3.0
0.0
0.0
2.5
3.0
9.0
10.0
6.0
7.0
0.0
0.0
0.0
0.0
5.0
6.0
5.0
6.0
5.0
5.0
5.0
6.0
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
October 2, 1987
7
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