MC74F74J 查看數據表（PDF） - Motorola => Freescale
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MC74F74J Datasheet PDF : 3 Pages
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MC54/74F74
AC CHARACTERISTICS
Symbol
fmax
tPLH
tPHL
tPLH
tPHL
Parameter
Maximum Clock Frequency
Propagation Delay
CPn to Qn or Qn
Propagation Delay
CDn or SDn to Qn or Qn
AC OPERATING REQUIREMENTS
Symbol
ts(H)
ts(L)
th(H)
th(L)
tw(H)
tw(L)
tw(L)
trec
Parameter
Setup Time, HIGH or LOW
Dn to CPn
Hold Time, HIGH or LOW
Dn to CPn
CPn Pulse Width, HIGH
or LOW
CDn or SDn Pulse Width, LOW
Recovery Time
CDn or SDn to CP
54/74F
TA = +25°C
VCC = +5.0 V
CL = 50 pF
Min
Max
100
3.8
6.8
4.4
8.0
2.5
6.1
3.5
9.0
54F
TA = –55°C to +125°C
VCC = 5.0 V ± 10%
CL = 50 pF
Min
Max
100
3.8
8.5
4.4
10.5
2.5
8.0
3.5
11.5
74F
TA = 0°C to 70°C
VCC = 5.0 V ± 10%
CL = 50 pF
Min
Max
100
3.8
7.8
4.4
9.2
2.5
7.1
3.5
10.5
Unit
MHz
ns
ns
54/74F
54F
74F
TA = +25°C
TA = –55°C to +125°C TA = 0°C to +70°C
VCC = +5.0 V
VCC = 5.0 V ± 10% VCC = 5.0V ± 10%
Min Typ Max
Min
Max
Min
Max
Unit
2.0
3.0
2.0
3.0
4.0
3.0
ns
1.0
2.0
1.0
1.0
2.0
1.0
4.0
4.0
4.0
ns
5.0
6.0
5.0
4.0
4.0
4.0
ns
2.0
3.0
2.0
ns
FAST AND LS TTL DATA
4-35
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