KK74HCT139A Datasheet, PDF (1/6 Pages) KODENSHI KOREA CORP. – Dual 1-of-4 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS

TECHNICAL DATA
Dual 1-of-4 Decoder/Demultiplexer
High-Performance Silicon-Gate CMOS
KK74HCT139A
The KK74HCT139A is identical in pinout to the LS/ALS139. The
KK74HCT139A 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.
• TTL/NMOS Compatible Input Levels
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1.0 µA
ORDERING INFORMATION
KK74HCT139AN Plastic
KK74HCT139AD SOIC
T_A = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 16 =V_CC
PIN 8 = GND
FUNCTION TABLE
Inputs
Outputs
Select A1 A0 Y0 Y1 Y2 Y3
H
X X HH H H
L
L L LH H H
L
L HHL H H
L
H L HH L H
L
H H HH H L
X = don’t care
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