CD54HC354 Datasheet, PDF (3/15 Pages) Texas Instruments – 8-Line to 1-Line Data Selector/Multiplexer/Register With 3-State Outputs

CD54HC354, CD74HC354, CD74HCT354
TRUTH TABLE (Continued)
INPUTS
SELECT (NOTE 1 )
ENABLE
DATA
OUTPUT ENABLES
OUTPUTS
S2
S1
S0
E
OE1
OE2
OE3
Y
Y
H
H
H
L
L
L
H
D7
D7
H
H
H
H
L
L
H
D7_n
D7_n
H = High Voltage Level (Steady State); L = Low Voltage Level (Steady State); X = Don’t Care; Z = High Impedance State (Off
State); D0_n...D7_n = the level of steady-state inputs D0 through D7, respectively, before the most recent low-to-high transition of
data control.
NOTE:
1. This column shows the input address setup with LE low.
Block Diagram
15
OE1
16
OE2
17
OE3
9
E
8
D0
7
D1
6
D2
5
D3
4
D4
3
D5
2
D6
1
D7
11
LE
14
S0
13
S1
12
S2
ENABLE LOGIC
D
A
1
T
O
A
F
8
R
E
S
G
E
I
L
S
E
T
C
E
T
R
O
S
R
AR
DE
DG
RI
ES
ST
SE
R
ADDRESS
DECODE
18
Y
19
Y
BUFFERS
3