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PDF MM74C157 Data sheet ( Hoja de datos )
| Número de pieza | MM74C157 | |
| Descripción | Quad 2-Input Multiplexers | |
| Fabricantes | National | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MM74C157 (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
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February 1988
MM54C157 MM74C157 Quad 2-Input Multiplexers
General Description
These multiplexers are monolithic complementary MOS
(CMOS) integrated circuits constructed with N- and P-chan-
nel enhancement transistors They consist of four 2-input
multiplexers with common select and enable inputs When
the enable input is at logical ‘‘0’’ the four outputs assume
the values as selected from the inputs When the enable
input is at logical ‘‘1’’ the outputs assume logical ‘‘0’’ Se-
lect decoding is done internally resulting in a single select
input only
Features
Y Supply voltage range
Y High noise immunity
Y Low power
Y Tenth power TTL compatible
3V to 15V
0 45 VCC (typ )
50 nW (typ )
Drive 2 LPTTL loads
Logic Connection Diagrams
Dual-In-Line Package
Top View
TL F 5894 – 2
Order Number MM54C157 or MM74C157
Truth Table
Enable Select A B
1 X XX
0 0 0X
0 0 1X
0 1 X0
0 1 X1
74L Compatibility
Output Y
0
0
1
0
1
C1995 National Semiconductor Corporation TL F 5894
TL F 5894 – 3
TL F 5894 – 1
Guaranteed Noise Margin
as a Function of VCC
TL F 5894 – 4
RRD-B30M105 Printed in U S A
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet MM74C157.PDF ] | |
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