74HC237 Datasheet, PDF (4/17 Pages) NXP Semiconductors – 3-to-8 line decoder/demultiplexer with address latches

NXP Semiconductors
74HC237
3-to-8 line decoder, demultiplexer with address latches
5.2 Pin description
Table 2.
Symbol
A0 to A2
LE
E1
E2
Y0 to Y7
GND
V_CC
Pin description
Pin
Description
1, 2, 3
data input
4
latch enable input (active LOW)
5
data enable input 1 (active LOW)
6
data enable input 2 (active HIGH)
15, 14, 13, 12, 11, 10, 9, 7 output
8
ground (0 V)
16
supply voltage
6. Functional description
Table 3: Function table
Enable
Input
Output
LE
E1
E2
A0
A1
A2
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
H
L
H
X
X
X
stable
X
H
X
X
X
X
L
L
L
L
L
L
L
L
X
X
L
X
X
X
L
L
L
L
L
L
L
L
L
L
H
L
L
L
H
L
L
L
L
L
L
L
H
L
L
L
H
L
L
L
L
L
L
L
H
L
L
L
H
L
L
L
L
L
H
H
L
L
L
L
H
L
L
L
L
L
L
H
L
L
L
L
H
L
L
L
H
L
H
L
L
L
L
L
H
L
L
L
H
H
L
L
L
L
L
L
H
L
H
H
H
L
L
L
L
L
L
L
H
[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
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
P_tot
supply voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
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)
DIP16 package
SO16 and SSOP16 packages
0.5
-
-
-
-
-
65
[1] _-
[2] _-
+7
V
20 mA
20 mA
25 mA
+50 mA
50 mA
+150 C
750 mW
500 mW
74HC237
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 10 January 2011
© NXP B.V. 2011. All rights reserved.
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