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74HC237D Folha de dados(PDF) 4 Page - NXP Semiconductors

Nome de Peças 74HC237D
Descrição Electrónicos  3-to-8 line decoder, demultiplexer with address latches
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Fabricante Electrônico  NXP [NXP Semiconductors]
Página de início  http://www.nxp.com
Logo NXP - NXP Semiconductors

74HC237D Folha de dados(HTML) 4 Page - NXP Semiconductors

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74HC237
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 4 — 10 January 2011
4 of 17
NXP Semiconductors
74HC237
3-to-8 line decoder, demultiplexer with address latches
5.2 Pin description
6.
Functional description
[1]
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
7.
Limiting values
Table 2.
Pin description
Symbol
Pin
Description
A0 to A2
1, 2, 3
data input
LE
4
latch enable input (active LOW)
E1
5
data enable input 1 (active LOW)
E2
6
data enable input 2 (active HIGH)
Y0 to Y7
15, 14, 13, 12, 11, 10, 9, 7 output
GND
8
ground (0 V)
VCC
16
supply voltage
Table 3:
Function table
Enable
Input
Output
LE
E1
E2
A0
A1
A2
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
HL
HX
X
X
stable
XH
XXX
XL
L
L
L
L
L
L
L
X
X
LX
X
X
LL
LLL
LLL
LL
H
LL
LH
L
LLL
LLL
H
L
LLH
LLL
LLL
LH
LLL
H
LL
LLL
H
H
LLL
LH
L
LLL
LL
H
LL
LLH
LLL
HL
HL
L
L
L
L
HL
L
LH
H
LL
LLL
LH
L
H
H
H
LL
LLL
LLH
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
VCC
supply voltage
0.5
+7
V
IIK
input clamping current
VI < 0.5 V or VI >VCC +0.5 V
-
20
mA
IOK
output clamping current
VO < 0.5 V or VO >VCC +0.5 V
-
20
mA
IO
output current
VO = 0.5 V to (VCC +0.5 V)
-
25
mA
ICC
supply current
-
+50
mA
IGND
ground current
-
50
mA
Tstg
storage temperature
65
+150
C
Ptot
total power dissipation
DIP16 package
[1] -
750
mW
SO16 and SSOP16 packages
[2] -
500
mW


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