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參數(shù)資料
| 型號(hào)： | SNJ54AHCT139W |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS |
| 中文描述： | 雙程線，4線解碼器/解復(fù)用器 |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 458K |
| 代理商： | SNJ54AHCT139W |
SN54AHCT139, SN74AHCT139
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SCLS267M
–
DECEMBER 1995
–
REVISED MARCH 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
The active-low enable (G) input can be used as a data line in demultiplexing applications. These
decoders/demultiplexers feature fully buffered inputs, each of which represents only one normalized load to its
driving circuit.
FUNCTION TABLE
(each decoder/demultiplexer)
INPUTS
SELECT
OUTPUTS
G
B
A
Y0
Y1
Y2
Y3
H
X
X
H
H
H
H
L
L
L
L
H
H
H
L
L
H
H
L
H
H
L
H
L
H
H
L
H
L
H
H
H
H
H
L
logic diagram (positive logic)
Select
Inputs
Select
Inputs
2B
2A
2G
1B
1A
1G
Data
Outputs
2Y3
2Y2
2Y1
2Y0
1Y3
1Y2
1Y1
1Y0
1
2
3
15
14
13
4
5
6
7
12
11
10
9
Pin numbers shown are for the D, DB, DGV, J, N, NS, PW, and W packages.
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