ITT - Index of

ITT54155, ITT54156,
DUAL2-LlNE-TO-4-LlNE DECODERS/DEMULTIPLEXERS
truth tables (H • high level. L • low level. X • irrelevant)
2·LlNE·TO·4·LlNE DECODER OR 1·LINE·TO·4·LlNE DEMULTIPLEXER
I
Inputs Outputs Inputs Outputs
Select Strobe Data Select Strobe Data
B A 1G 1C 110 1Z,1 H2 1Z3 B A 2G 2C 2Z0 2Z,1 2Z,2
X X H X H H H H X X H X H H H
L L L H L H H H L L L L L H H
L H L H H L H H L H L L H L H
H L L H H H L H H L L L H H L
H H L H H H H L H H L L H H H
X X X L H H H H X X X H H H H
2Z3
H
H
H
H
L
H
3·LINE·TO·8·LlNE DECODER TO 1·LlNE·TO·8·LlNE DEMULTIPLEXER
Inputs
Strobe
Select or Data (0) (1 )
c' B A G2 2Z0 2Z1
X X X H H H
L L L L L H
L L H L H L
L H L L H H
L H H L H H
H L L L H H
H L H L H H
H H L L H H
H H H L H H
, C = inputs 1 C and 2C connected together
2 G = inputs 1 G and 2G connected together
recommended operating conditions
Outputs
(2) (3) (4)
2Z2 2Z3 HO
H H H
H H H
H H H
L H H
H L H
H H L
H H H
H H H
H H H
(5) (6) (7)
1 Z1 112 1Z3
H H H
H H H
H H H
H H H
H H H
H H H
L H H
H L H
H H L
ITT54155
ITT74155
Min Nom Max Min Nom Max
Unit
Supply voltage V CC
Normalized fan·out from each output. N
Operating free·air temperature range. T A
I
I
High logic level
Low logic level
4.5 5
-55 25
5,5 4.75 5 5.25
20 20
10 10
125 0 25 70
V
°c
ITT54156
ITT74156
Min Nom Max Min Nom Max
Unit
Supply voltage V CC
4.5 5
5,5 4.75 5 5.25
V
Low·level outPUt current. 10 L
16 16
mA
Operating free-air temperature range. T A
-55 25
125 0 25 70
°c
3-189