N74ALS139N Просмотр технического описания (PDF) - Philips Electronics
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N74ALS139N Datasheet PDF : 8 Pages
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Philips Semiconductors
Dual 1-of-4 decoder/demultiplexer
Product specification
74ALS139
LOGIC DIAGRAM
Ea
A0a A1a
1
23
Eb
15
A0b A1b
14 13
FUNCTION TABLE
INPUTS
OUTPUTS
E
A0
A1
Q0
Q1
Q2
Q3
H
X
X
H
H
H
H
L
L
L
L
H
H
H
L
H
L
H
L
H
H
L
L
H
H
H
L
H
L
H
H
H
H
H
L
H = High voltage level
L = Low voltage level
X = Don’t care
4
5
6
7
Q0a Q1a Q2a Q3a
VCC= Pin 16
GND = Pin 8
12 11 10 9
Q0b Q1b Q2b Q3b
SF00132
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
SYMBOL
PARAMETER
VCC
VIN
IIN
VOUT
IOUT
Tamb
Tstg
Supply voltage
Input voltage
Input current
Voltage applied to output in High output state
Current applied to output in Low output state
Operating free-air temperature range
Storage temperature range
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
MIN
VCC Supply voltage
4.5
VIH
High-level input voltage
2.0
VIL
Low-level input voltage
IIk
Input clamp current
IOH
High-level output current
IOL
Low-level output current
Tamb Operating free-air temperature range
0
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
–0.5 to VCC
16
0 to +70
–65 to +150
UNIT
V
V
mA
V
mA
°C
°C
LIMITS
NOM
5.0
MAX
5.5
0.8
–18
–0.4
8
+70
UNIT
V
V
V
mA
mA
mA
°C
1991 Feb 08
3
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