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PDF MM74C90J Data sheet ( Hoja de datos )
| Número de pieza | MM74C90J | |
| Descripción | 4-Bit Decade / Binary Counter | |
| Fabricantes | National | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MM74C90J (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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February 1988
MM54C90 MM74C90 4-Bit Decade Counter
MM54C93 MM74C93 4-Bit Binary Counter
General Description
The MM54C90 MM74C90 decade counter and the
MM54C93 MM74C93 binary counter and complementary
MOS (CMOS) integrated circuits constructed with N- and
P-channel enhancement mode transistors The 4-bit decade
counter can reset to zero or preset to nine by applying ap-
propriate logic level on the R01 R02 R91 and R92 inputs
Also a separate flip-flop on the A-bit enables the user to
operate it as a divide-by-2 5 or 10 frequency counter The
4-bit binary counter can be reset to zero by applying high
logic level on inputs R01 and R02 and a separate flip-flop on
the A-bit enables the user to operate it as a divide-by-2 -8
or -16 divider Counting occurs on the negative going edge
of the input pulse
All inputs are protected against static discharge damage
Features
Y Wide supply voltage range
Y Guaranteed noise margin
Y High noise immunity
Y Low power
TTL compatiblity
Y The MM54C93 MM74C93
MM74L93 Pinout
follows
3V to 15V
1V
0 45 VCC (typ )
Fan out of 2
driving 74L
the MM54L93
Connection and Logic Diagrams
MM54C90 MM74C90
Dual-In-Line Package
MM54C93 MM74C93
Dual-In-Line Package
Top View
TL F 5889 – 2
Order Number MM54C90 or MM74C93
Top View
M54C90 MM74C90
MM54C93 MM74C93
TL F 5889 – 4
C1995 National Semiconductor Corporation TL F 5889
TL F 5889 – 1
TL F 5889 – 3
RRD-B30M105 Printed in U S A
1 page  
Physical Dimensions inches (millimeters)
Ceramic Dual-In-Line Package (J)
Order Number MM54C90J MM54C93J MM74C90J or MM74C93J
NS Package Number J14A
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet MM74C90J.PDF ] | |
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