74HC138D Datasheet, PDF (4/19 Pages) NXP Semiconductors – 3-to-8 line decoder/demultiplexer; inverting

NXP Semiconductors
74HC138; 74HCT138
3-to-8 line decoder/demultiplexer; inverting
5.2 Pin description
Table 2. Pin description
Symbol
A0, A1, A2
E1, E2
E3
Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7
GND
V_CC
Pin
1, 2, 3
4, 5
6
15, 14, 13, 12, 11, 10, 9, 7
8
16
6. Functional description
Description
address input A0, A1, A2
enable input E1, E2 (active LOW)
enable input E3 (active HIGH)
output Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7 (active LOW)
ground (0 V)
positive supply voltage
Table 3. Function table^[1]
Control
Input
Output
E1
E2
E3
A2
A1
A0
Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
H
X
X
X
X
X
H
H
H
H
H
H
H
H
X
H
X
X
X
L
L
L
H
L
L
L
H
H
H
H
H
H
H
L
L
L
H
H
H
H
H
H
H
L
H
L
H
L
H
H
H
H
H
L
H
H
L
H
H
H
H
H
H
L
H
H
H
H
L
L
H
H
H
L
H
H
H
H
H
L
H
H
H
L
H
H
H
H
H
H
H
L
H
L
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
[1] H = HIGH voltage level;
L = LOW voltage level;
X = don’t care.
7. Limiting values
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
Conditions
Min Max Unit
V_CC
I_IK
I_OK
I_O
I_CC
I_GND
T_stg
supply voltage
input clamping current
output clamping current
output current
quiescent supply current
ground current
storage temperature
V_I < −0.5 V or V_I > V_CC + 0.5 V
V_O < −0.5 V or V_O > V_CC + 0.5 V
V_O = −0.5 V to (V_CC + 0.5 V)
−0.5 +7
V
-
±20 mA
-
±20 mA
-
±25 mA
-
50
mA
-
−50 mA
−65 +150 °C
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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