MC54F168J 查看數據表（PDF） - Motorola => Freescale
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MC54F168J Datasheet PDF : 6 Pages
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MC54/74F168 • MC54/74F169
AC CHARACTERISTICS
Symbol
fmax
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
Parameter
Maximum Clock Frequency
Propagation Delay
CP to Qn (PE HIGH or LOW)
Propagation Delay
CP to TC
(F168)
Propagation Delay
CP to TC
(F169)
Propagation Delay
CET to TC
Propagation Delay
U/D to TC
(F168)
Propagation Delay
U/D to TC
(F169)
AC OPERATING REQUIREMENTS
Symbol
ts(H)
ts(L)
th(H)
th(L)
ts(H)
ts(L)
th(H)
th(L)
ts(H)
ts(L)
th(H)
th(L)
ts(H)
ts(L)
ts(H)
ts(L)
th(H)
th(L)
tw(H)
tw(L)
Parameter
Setup Time, HIGH or LOW
Pn to CP
Hold Time, HIGH or LOW
Pn to CP
Setup Time, HIGH or LOW
CEP or CET to CP
Hold Time HIGH or LOW
CEP or CET to CP
Setup Time, HIGH or LOW
PE to CP
Hold Time, HIGH or LOW
PE to CP
Setup Time, HIGH or LOW (F168)
U/D to CP
Setup Time, HIGH or LOW (F169)
U/D to CP
Hold time, HIGH or LOW
U/D to CP
CP Pulse Width
HIGH or LOW
54/74F
TA = +25°C
VCC = +5.0 V
CL = 50 pF
Min
Max
100
3.0
8.5
4.0
11.5
5.5
15.5
4.0
11
5.0
15.5
4.0
11
2.5
6.0
2.5
8.0
3.5
11
4.0
16
3.5
11
4.0
10.5
54/74F
TA = +25°C
VCC = +5.0 V
Min
Max
4.0
4.0
3.0
3.0
5.0
5.0
0
0
8.0
8.0
0
0
11
16.5
11
7.0
0
0
5.0
5.0
54F
TA = –55°C to +125°C
VCC = 5.0 V ± 10%
CL = 50 pF
Min
Max
60
3.0
10.5
4.0
14
5.5
18
4.0
13.5
5.0
18
4.0
13.5
2.5
8.0
2.5
10
3.5
13.5
4.0
18.5
3.5
13.5
4.0
13
74F
TA = 0°C to 70°C
VCC = 5.0 V ± 10%
CL = 50 pF
Min
Max
85
3.0
9.5
4.0
13
5.5
17
4.0
12.5
5.0
17
4.0
12.5
2.5
7.0
2.5
9.0
3.5
12.5
4.0
17.5
3.5
12.5
4.0
12
54F
TA = –55°C to +125°C
VCC = 5.0 V ± 10%
Min
Max
5.5
5.5
74F
TA = 0°C to 70°C
VCC = 5.0 V ± 10%
Min
Max
4.5
4.5
3.5
3.5
3.5
3.5
7.0
6.0
7.0
6.0
0
0
0
0
10
9.0
10
9.0
0
0
0
0
13.5
12.5
19
18
13.5
12.5
9.0
8.0
0
0
0
0
8.0
5.5
8.0
5.5
Unit
MHz
ns
ns
ns
ns
ns
ns
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
FAST AND LS TTL DATA
4-144
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