參數(shù)資料
型號(hào): 74LVC138APWDH
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 通用總線功能
英文描述: 3-to-8 line decoder/demultiplexer; inverting
中文描述: LVC/LCX/Z SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16
封裝: PLASTIC, TSSOP1-16
文件頁(yè)數(shù): 3/10頁(yè)
文件大小: 94K
代理商: 74LVC138APWDH
Philips Semiconductors
Product specification
74LVC138A
3-to-8 line decoder/demultiplexer; inverting
1998 Apr 28
3
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
1, 2, 3
A
0
to A
2
E
1
, E
2
E
3
Address inputs
4, 5
Enable inputs (active LOW)
6
Enable inputs (active HIGH)
15, 14, 13, 12,
11, 10, 9, 7
8
Y
0
to Y
7
Outputs
GND
Ground (0 V)
16
V
CC
Positive supply voltage
LOGIC SYMBOL (IEEE/IEC)
SV00555
1
2
3
4
5
6
7
9
10
11
12
13
14
15
0
1
2
3
4
5
6
7
(a)
(b)
&
EN
X/Y
DX
0
2
1
2
3
4
5
6
7
9
10
11
12
13
14
15
0
1
2
3
4
5
6
7
&
1
2
4
FUNCTIONAL DIAGRAM
SV00556
1
2
3
4
5
6
7
9
10
11
12
13
14
15
A
1
E
1
A
2
A
3
E
2
E
3
3-to-8
DECODER
ENABLE
EXITING
Y
0
Y
1
Y
2
Y
3
Y
4
Y
5
Y
7
Y
6
FUNCTION TABLE
INPUTS
OUTPUTS
E
1
H
E
2
X
E
3
X
A
0
X
A
1
X
A
2
X
Y
0
H
Y
1
H
Y
2
H
Y
3
H
Y
4
H
Y
5
H
Y
6
H
Y
7
H
X
H
X
X
X
X
H
H
H
H
H
H
H
H
X
X
L
X
X
X
H
H
H
H
H
H
H
H
L
L
H
L
L
L
L
H
H
H
H
H
H
H
L
L
H
H
L
L
H
L
H
H
H
H
H
H
L
L
H
L
H
L
H
H
L
H
H
H
H
H
L
L
H
H
H
L
H
H
H
L
H
H
H
H
L
L
H
L
L
H
H
H
H
H
L
H
H
H
L
L
H
H
L
H
H
H
H
H
H
L
H
H
L
L
H
L
H
H
H
H
H
H
H
H
L
H
L
L
H
H
H
H
H
H
H
H
H
H
H
L
NOTES:
H = HIGH voltage level
L = LOW voltage level
X = don’t care
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