74HC/HCT139 Philips Semiconductors (Acquired by NXP), 74HC/HCT139 Datasheet - Page 4

• Manufacturer Part Number: 74HC/HCT139
• Description: Dual 2-to-4 Line Decoder/demultiplexer
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
FUNCTION TABLE
Notes
1. H = HIGH voltage level
September 1993
H
L
L
L
L
Dual 2-to-4 line decoder/demultiplexer
nE
L = LOW voltage level
X = don’t care
Fig.5 Logic diagram (one decoder/demultiplexer).
INPUTS
X
L
H
L
H
nA
0
Fig.4 Functional diagram.
X
L
L
H
H
nA
1
H
L
H
H
H
nY
0
H
H
L
H
H
nY
OUTPUTS
1
H
H
H
L
H
nY
2
H
H
H
H
L
nY
3
4
74HC/HCT139
Product specification