CD74HCT4515E Datasheet, PDF (2/10 Pages) Texas Instruments – 4-LINE TO 16-LINE DECODERS/DEMULTIPLEXERS

CD74HCT4514, CD74HCT4515
4ĆLINE TO 16ĆLINE DECODERS/DEMULTIPLEXERS
WITH INPUT LATCHES
SCHS314D − MAY 2002 − REVISED SEPTEMBER 2004
DECODE FUNCTION TABLE
(LE = H)
DECODER INPUTS
ADDRESSED OUTPUT
E
A3 A2 A1 A0
CD74HCT4514 = H
CD74HCT4515 = L
L
L
L
L
L
Y0
L
L
L
L
H
Y1
L
L
L
H
L
Y2
L
L
L
H
H
Y3
L
L
H
L
L
Y4
L
L
H
L
H
Y5
L
L
H
H
L
Y6
L
L
H
H
H
Y7
L
H
L
L
L
Y8
L
H
L
L
H
Y9
L
H
L
H
L
Y10
L
H
L
H
H
Y11
L
H
H
L
L
Y12
L
H
H
L
H
Y13
L
H
H
H
L
Y14
L
H
H
H
H
Y15
H
X
X
X
X
All outputs = L, CD74HCT4514
All outputs = H, CD74HCT4515
H = high, L = low, X = don’t care
logic diagram (positive logic)
2
A0
3
A1
21
A2
22
A3
1
LE
Latch
4-Line
to
16-Line
Decoder
CD74HCT4514 CD74HCT4515
11
Y0
Y0
9
Y1
Y1
10
Y2
Y2
8
Y3
Y3
7
Y4
Y4
6
Y5
Y5
5
Y6
Y6
4
Y7
Y7
18
Y8
Y8
17
Y9
Y9
20
Y10
Y10
19
Y11
Y11
14
Y12
Y12
13
Y13
Y13
16
Y14
Y14
15
Y15
Y15
23
E
GND = 12
VCC = 24
2
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