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54F190DM Datasheet(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. 54F190DM
Description  Up/Down Decade Counter with Preset and Ripple Clock
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

54F190DM Datasheet(HTML) 5 Page - National Semiconductor (TI)

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AC Electrical Characteristics
74F
54F
74F
TA ea25 C
TA VCC e Mil
TA VCC e Com
Symbol
Parameter
VCC ea50V
CL e 50 pF
CL e 50 pF
Units
CL e 50 pF
Min
Typ
Max
Min
Max
Min
Max
fmax
Maximum Clock Frequency
100
125
75
90
MHz
tPLH
Propagation Delay
30
55
75
30
95
30
85
tPHL
CP to Qn
50
85
110
50
135
50
120
ns
tPLH
Propagation Delay
60
100
130
60
165
60
140
tPHL
CP to TC
50
85
110
50
135
50
120
tPLH
Propagation Delay
30
55
75
30
95
30
85
tPHL
CP to RC
30
50
70
30
90
30
80
ns
tPLH
Propagation Delay
30
50
70
30
90
30
80
tPHL
CE to RC
30
55
70
30
90
30
80
tPLH
Propagation Delay
70
110
180
70
220
70
200
tPHL
U D to RC
55
90
120
55
140
55
130
ns
tPLH
Propagation Delay
40
70
100
40
135
40
110
tPHL
U D to TC
40
65
100
40
125
40
110
tPLH
Propagation Delay
30
45
70
30
90
30
80
ns
tPHL
Pn to Qn
60
100
130
60
160
60
140
tPLH
Propagation Delay
50
85
110
50
130
50
120
ns
tPHL
PL to Qn
55
90
120
55
145
55
130
AC Operating Requirements
74F
54F
74F
Symbol
Parameter
TA ea25 C
TA VCC e Mil
TA VCC e Com
Units
VCC ea50V
Min
Max
Min
Max
Min
Max
ts(H)
Setup Time HIGH or LOW
45
60
50
ts(L)
Pn to PL
45
60
50
ns
th(H)
Hold Time HIGH or LOW
20
20
20
th(L)
Pn to PL
20
20
20
ts(L)
Setup Time LOW
100
105
100
CE to CP
ns
th(L)
Hold Time LOW
000
CE to CP
ts(H)
Setup Time HIGH or LOW
120
120
120
ts(L)
U D to CP
120
120
120
ns
th(H)
Hold Time HIGH or LOW
0
0
0
th(L)
U D to CP
0
0
0
tw(L)
PL Pulse Width LOW
60
85
60
ns
tw(L)
CP Pulse Width LOW
50
70
50
ns
trec
Recovery Time PL to CP
60
75
60
ns
5


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