DM74LS156M Fairchild Semiconductor, DM74LS156M Datasheet - Page 2

• Manufacturer Part Number: DM74LS156M
• Description: IC DECODER/DEMUX 2-4LINE 16-SOIC
• Manufacturer: Fairchild Semiconductor
• Series: 74LSr
• Type: Decoder/Demultiplexerr

Specifications of DM74LS156M

• Circuit: 2 x 1:4
• Independent Circuits: 1
• Current - Output High, Low: 400µA, 8mA
• Voltage Supply Source: Single Supply
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

www.fairchildsemi.com
Function Tables
H
L
X
Note 1: C
Note 2: G
Logic Diagram
B
H
H
Select
X
X
L
L
LOW level
HIGH level
don’t care
C (Note 1)
A
X
H
H
X
L
L
X
H
H
H
H
L
L
L
L
inputs C1 and C2 connected together
inputs G1 and G2 connected together
Select
Inputs
Strobe
G1
H
L
L
L
L
X
B
H
H
H
H
X
Inputs
L
L
L
L
Data
C1
A
X
H
H
H
H
X
H
H
H
H
L
L
L
L
L
3-Line-to-8-Line Decoder or 1-Line-to-8-Line Demultiplexer
2-Line-to-4-Line Decoder or 1-Line-to-4-Line Demultiplexer
G (Note 2)
1Y0
Or Data
H
H
H
H
H
L
Strobe
H
L
L
L
L
L
L
L
L
1Y1
H
H
H
H
H
L
Outputs
1Y2
H
H
H
H
H
L
2Y0
(0)
H
H
H
H
H
H
H
H
L
1Y3
H
H
H
H
H
L
2Y1
(1)
H
H
H
H
H
H
H
H
L
2
Select
B
X
H
H
X
L
L
2Y2
(2)
H
H
H
H
H
H
H
H
L
A
H
H
X
L
L
X
Inputs
Strobe
2Y3
G2
(3)
H
X
H
H
H
H
H
H
H
H
L
L
L
L
L
Outputs
Data
1Y0
C2
(4)
H
H
H
H
H
H
H
H
X
H
L
L
L
L
L
2Y0
H
H
H
H
H
L
1Y1
(5)
H
H
H
H
H
H
H
H
L
2Y1
H
H
H
H
H
Outputs
L
1Y2
(6)
H
H
H
H
H
H
H
H
L
2Y2
H
H
H
H
H
L
1Y3
(7)
H
H
H
H
H
H
H
H
2Y3
L
H
H
H
H
H
L