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PDF CD4028BM Data sheet ( Hoja de datos )
| Número de pieza | CD4028BM | |
| Descripción | BCD-to-Decimal Decoder | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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February 1988
CD4028BM CD4028BC BCD-to-Decimal Decoder
General Description
The CD4028BM CD4028BC is a BCD-to-decimal or binary-
to-octal decoder consisting of 4 inputs decoding logic
gates and 10 output buffers A BCD code applied to the 4
inputs A B C and D results in a high level at the selected
1-of-10 decimal decoded outputs Similarly a 3-bit binary
code applied to inputs A B and C is decoded in octal at
outputs 0 – 7 A high level signal at the D input inhibits octal
decoding and causes outputs 0–7 to go low
All inputs are protected against static discharge damage by
diode clamps to VDD and VSS
Features
Y Wide supply voltage range
3 0V to 15V
Y High noise immunity
Y Low power TTL
compatibility
0 45 VDD (typ )
fan out of 2 driving 74L
or 1 driving 74LS
Y Low power
Y Glitch free outputs
Y ‘‘Positive logic’’ on inputs and outputs
Applications
Y Code conversion
Y Address decoding
Y Indicator-tube decoder
Logic and Connection Diagrams
Dual-In-Line Package
Top View
TL F 5959 – 2
Order Number CD4028B
TL F 5959 – 1
Truth Table
DCBA0123456789
0 0 0 01000000000
0 0 0 10100000000
0 0 1 00010000000
0 0 1 10001000000
0 1 0 00000100000
0 1 0 10000010000
BCD States
0 1 1 00000001000
1 e High Level 0 1 1 1 0 0 0 0 0 0 0 1 0 0
-0 e Low Level 1 0 0 0 0 0 0 0 0 0 0 0 1 0
1 0 0 10000000001
1 0 1 00000000010
1 0 1 10000000001
*1 1 0 0 0 0 0 0 0 0 0 0 1 0
1 1 0 10000000001
1 1 1 00000000010
1 1 1 10000000001
Extraordinary States
C1995 National Semiconductor Corporation TL F 5959
RRD-B30M105 Printed in U S A
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet CD4028BM.PDF ] | |
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