參數(shù)資料
型號: MC74AC1T39
廠商: ON SEMICONDUCTOR
英文描述: DUAL 1-OF-4 DECODER/DEMULTIPLEXER
中文描述: 雙1 - - 4解碼器/解復(fù)用器
文件頁數(shù): 1/12頁
文件大?。?/td> 108K
代理商: MC74AC1T39
Semiconductor Components Industries, LLC, 2002
July, 2002 – Rev. 6
1
Publication Order Number:
MC74AC139/D
MC74AC139, MC74ACT139
Dual 1-of-4
Decoder/Demultiplexer
The MC74AC139/74ACT139 is a high–speed, dual 1–of–4
decoder/demultiplexer. The device has two independent decoders,
each accepting two inputs and providing four mutually–exclusive
active–LOW outputs. Each decoder has an active–LOW Enable input
which can be used as a data input for a 4–output demultiplexer. Each
half of the MC74AC139/74ACT139 can be used as a function
generator providing four minterms of two variables.
Multifunctional Capability
Two Completely Independent 1–of–4 Decoders
Active LOW Mutually Exclusive Outputs
Outputs Source/Sink 24 mA
ACT139 Has TTL Compatible Inputs
15
16
14
13
12
11
10
2
1
3
4
5
6
7
V
CC
9
8
E
b
A
0b
A
1b
E
a
GND
O
0b
O
1b
O
2b
O
3b
A
0a
A
1a
O
0a
O
1a
O
2a
O
3a
Figure 1. Pinout: 16–Lead Packages Conductors
(Top View)
PIN ASSIGNMENT
PIN
FUNCTION
A
0
, A
1
Address Inputs
E
Enable Inputs
O
0
–O
3
Outputs
TRUTH TABLE
Inputs
Outputs
E
A
0
A
1
O
0
O
1
O
2
O
3
H
L
L
L
L
X
L
H
L
H
X
L
L
H
H
H
L
H
H
H
H
H
L
H
H
H
H
H
L
H
H
H
H
H
L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
http://onsemi.com
DIP–16
N SUFFIX
CASE 648
1
16
SO–16
D SUFFIX
CASE 751B
1
16
Device
Package
Shipping
ORDERING INFORMATION
MC74AC139N
PDIP–16
25 Units/Rail
MC74AC139D
SOIC–16
48 Units/Rail
MC74AC139DR2
2500 Tape & Reel
TSSOP–16
DT SUFFIX
CASE 948F
MC74AC139DT
TSSOP–16
96 Units/Rail
MC74AC139DTR2
TSSOP–16
SOIC–16
2500 Tape & Reel
MC74ACT139N
PDIP–16
25 Units/Rail
MC74ACT139D
SOIC–16
48 Units/Rail
MC74ACT139DR2
2500 Tape & Reel
MC74ACT139DT
TSSOP–16
96 Units/Rail
SOIC–16
1
16
See general marking information in the device marking
section on page 6 of this data sheet.
DEVICE MARKING INFORMATION
1
16
EIAJ–16
M SUFFIX
CASE 966
MC74AC139M
EIAJ–16
MC74AC139MEL
EIAJ–16
2000 Tape & Reel
MC74ACT139M
EIAJ–16
MC74ACT139MEL
EIAJ–16
2000 Tape & Reel
50 Units/Rail
50 Units/Rail
相關(guān)PDF資料
PDF描述
MC74AC139DTR2 DUAL 1-OF-4 DECODER/DEMULTIPLEXER
MC74AC139MEL DUAL 1-OF-4 DECODER/DEMULTIPLEXER
MC74ACT139MEL DUAL 1-OF-4 DECODER/DEMULTIPLEXER
MC74AC139 DUAL 1-OF-4 DECODER/DEMULTIPLEXER
MC74AC139D DUAL 1-OF-4 DECODER/DEMULTIPLEXER
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