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零件编号
产品描述 (功能)
MC74HC139ADR2 查看數據表(PDF) - ON Semiconductor
零件编号
产品描述 (功能)
生产厂家
MC74HC139ADR2
Dual 1−of−4 Decoder/Demultiplexer
ON Semiconductor
MC74HC139ADR2 Datasheet PDF : 10 Pages
1
2
3
4
5
6
7
8
9
10
SELECT
a
1
A0
a
2
A1
a
3
Y0
a
4
Y1
a
5
Y2
a
6
Y3
a
7
GND
8
16
V
CC
15
SELECT
b
14
A0
b
13
A1
b
12
Y0
b
11
Y1
b
10
Y2
b
9
Y3
b
Figure 1. Pin Assignment
FUNCTION TABLE
Inputs
Select A1 A0
H
XX
L
LL
L
LH
L
HL
L
HH
X = don’t care
Outputs
Y0 Y1 Y2 Y3
H HH H
L HH H
H LH H
H HL H
H HH L
MC74HC139A
ADDRESS A0
a
2
INPUTS
A1
a
3
SELECT
a
1
ADDRESS
INPUTS
A0
b
14
A1
b
13
4
Y0
a
5
Y1
a
6
Y2
a
7
Y3
a
ACTIVE−LOW
OUTPUTS
PIN 16 = V
CC
PIN 8 = GND
12
Y0
b
11
Y1
b
10
Y2
b
9
Y3
b
ACTIVE−LOW
OUTPUTS
SELECT
b
15
Figure 2. Logic Diagram
ORDERING INFORMATION
Device
MC74HC139AN
Package
PDIP−16
Shipping
†
2000 Units / Box
MC74HC139ANG
PDIP−16
(Pb−Free)
2000 Units / Box
MC74HC139AD
SOIC−16
48 Units / Rail
MC74HC139ADG
SOIC−16
(Pb−Free)
48 Units / Rail
MC74HC139ADR2
SOIC−16
2500 Units / Reel
MC74HC139ADR2G
SOIC−16
(Pb−Free)
2500 Units / Reel
MC74HC139ADTR2
TSSOP−16*
2500 Units / Reel
MC74HC139ADTR2G
TSSOP−16*
2500 Units / Reel
MC74HC139AFEL
SOEIAJ−16
2000 Units / Reel
MC74HC139AFELG
SOEIAJ−16
(Pb−Free)
2000 Units / Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*This package is inherently Pb−Free.
http://onsemi.com
2
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