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PDF 74F190SC Data sheet ( Hoja de datos )
| Número de pieza | 74F190SC | |
| Descripción | Up/Down Decade Counter with Preset and Ripple Clock | |
| Fabricantes | National | |
| Logotipo |  |
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November 1994
54F 74F190
Up Down Decade Counter with Preset and Ripple Clock
General Description
The ’F190 is a reversible BCD (8421) decade counter fea-
turing synchronous counting and asynchronous presetting
The preset feature allows the ’F190 to be used in program-
mable dividers The Count Enable input the Terminal Count
output and the Ripple Clock output make possible a variety
of methods of implementing multistage counters In the
counting modes state changes are initiated by the rising
edge of the clock
Features
Y High-speed 125 MHz typical count frequency
Y Synchronous counting
Y Asynchronous parallel load
Y Cascadable
Commercial
74F190PC
74F190SC (Note 1)
Military
54F190DM (Note 2)
54F190FM (Note 2)
54F190LM (Note 2)
Package
Number
N16E
J16A
M16A
W16A
E20A
Package Description
16-Lead (0 300 Wide) Molded Dual-In-Line
16-Lead Ceramic Dual-In-Line
16-Lead (0 150 Wide) Molded Small Outline JEDEC
16-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
Note 1 Devices also available in 13 reel Use suffix e SCX
Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB
Logic Symbols
Connection Diagrams
Pin Assignment for
DIP SOIC and Flatpak
Pin Assignment
for LCC
IEEE IEC
TL F 9494–1
TL F 9494 – 2
TL F 9494 – 3
TL F 9494–4
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 9494
RRD-B30M75 Printed in U S A
1 page  
AC Electrical Characteristics
Symbol
Parameter
fmax
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
Maximum Clock Frequency
Propagation Delay
CP to Qn
Propagation Delay
CP to TC
Propagation Delay
CP to RC
Propagation Delay
CE to RC
Propagation Delay
U D to RC
Propagation Delay
U D to TC
Propagation Delay
Pn to Qn
Propagation Delay
PL to Qn
74F
TA e a25 C
VCC e a5 0V
CL e 50 pF
Min Typ Max
100 125
30 55 75
5 0 8 5 11 0
6 0 10 0 13 0
5 0 8 5 11 0
30 55 75
30 50 70
30 50 70
30 55 70
7 0 11 0 18 0
5 5 9 0 12 0
4 0 7 0 10 0
4 0 6 5 10 0
30 45 70
6 0 10 0 13 0
5 0 8 5 11 0
5 5 9 0 12 0
54F
TA VCC e Mil
CL e 50 pF
Min Max
75
30 95
5 0 13 5
6 0 16 5
5 0 13 5
30 95
30 90
30 90
30 90
7 0 22 0
5 5 14 0
4 0 13 5
4 0 12 5
30 90
6 0 16 0
5 0 13 0
5 5 14 5
AC Operating Requirements
Symbol
Parameter
ts(H)
ts(L)
th(H)
th(L)
ts(L)
th(L)
ts(H)
ts(L)
th(H)
th(L)
tw(L)
tw(L)
trec
Setup Time HIGH or LOW
Pn to PL
Hold Time HIGH or LOW
Pn 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
PL Pulse Width LOW
CP Pulse Width LOW
Recovery Time PL to CP
74F
TA e a25 C
VCC e a5 0V
Min Max
45
45
20
20
10 0
0
12 0
12 0
0
0
60
50
60
54F
TA VCC e Mil
Min Max
60
60
20
20
10 5
0
12 0
12 0
0
0
85
70
75
74F
TA VCC e Com
CL e 50 pF
Min Max
90
30 85
5 0 12 0
6 0 14 0
5 0 12 0
30 85
30 80
30 80
30 80
7 0 20 0
5 5 13 0
4 0 11 0
4 0 11 0
30 80
6 0 14 0
5 0 12 0
5 5 13 0
74F
TA VCC e Com
Min Max
50
50
20
20
10 0
0
12 0
12 0
0
0
60
50
60
Units
MHz
ns
ns
ns
ns
ns
Units
ns
ns
ns
ns
ns
ns
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet 74F190SC.PDF ] | |
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