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74HC138D Datasheet, PDF (3/19 Pages) NXP Semiconductors – 3-to-8 line decoder/demultiplexer; inverting
NXP Semiconductors
74HC138; 74HCT138
3-to-8 line decoder/demultiplexer; inverting
A2
A1
A0
E1
E2
E3
Fig 3. Logic diagram
5. Pinning information
5.1 Pinning
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
001aae059
74HC138
74HCT138
A0 1
A1 2
A2 3
E1 4
E2 5
E3 6
Y7 7
GND 8
16 VCC
15 Y0
14 Y1
13 Y2
12 Y3
11 Y4
10 Y5
9 Y6
001aae061
Fig 4. Pin configuration DIP16, SO16, SSOP16 and
TSSOP16
74HC138BQ
74HCT138BQ
terminal 1
index area
A1 2
A2 3
E1 4
E2 5
E3 6
Y7 7
GND(1)
15 Y0
14 Y1
13 Y2
12 Y3
11 Y4
10 Y5
001aae060
Transparent top view
(1) The die substrate is attached to this pad using
conductive die attach material. It cannot be used as
supply pin or input.
Fig 5. Pin configuration DHVQFN16
74HC_HCT138
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 27 June 2012
© NXP B.V. 2012. All rights reserved.
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