TECHNICAL DATA
KK74ACT139
Dual 1-of-4 Decoder/Demultiplexer
High-Speed Silicon-Gate CMOS
The KK74ACT139 is identical in pinout to the LS/ALS139,
HC/HCT139. The KK74ACT139 may be used as a level converter for
interfacing TTL or NMOS outputs to High Speed CMOS inputs.
This device consists of two independent 1-of-4 decoders, each of
which decodes a two-bit Address to one-of-four active-low outputs.
Active-low Selects are provided to facilitate the demultiplexing and
cascading functions. The demultiplexing function is accomplished by
using the Address inputs to select the desired device output, and utilizing
the Select as a data input.
鈥?/div>
TTL/NMOS Compatible Input Levels
鈥?/div>
Outputs Directly Interface to CMOS, NMOS, and TTL
鈥?/div>
Operating Voltage Range: 4.5 to 5.5 V
鈥?/div>
Low Input Current: 1.0
碌A;
0.1
碌A
@ 25擄C
鈥?/div>
Outputs Source/Sink 24 mA
ORDERING INFORMATION
KK74ACT139N Plastic
KK74ACT139D SOIC
T
A
= -40擄 to 85擄 C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
Select
PIN 16 =V
CC
PIN 8 = GND
H
L
L
L
L
A1
X
L
L
H
H
A0
X
L
H
L
H
Y0
H
L
H
H
H
Outputs
Y1
H
H
L
H
H
Y2
H
H
H
L
H
Y3
H
H
H
H
L
X = don鈥檛 care
1
KK74ACT139D相關型號PDF文件下載
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