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SN74ALS155 Datasheet(PDF) 3 Page - Texas Instruments

Part No. SN74ALS155
Description  DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

SN74ALS155 Datasheet(HTML) 3 Page - Texas Instruments

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PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
UNIT
ns
ns
1Y, 2Y
1Y
A, B
1C
ns
1Y
1G
2C, 2G
2Y
ns
SN74ALS155
DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER
SDAS140 — NOVEMBER 1987
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
3
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC (see Note 1)
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
– 65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only, and
functional operation of the device at these or any other conditions beyond those indicated in the “Recommended Operating Conditions” section of
this specification is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to GND.
recommended operating conditions
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
IOH
High-level output current
– 0.4
mA
IOL
Low-level output current
8
mA
TA
Operating free-air temperature
0
70
°C
electrical characteristics over recommended free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
VIK
VCC = 4.5 V,
II = – 18 mA
– 1.5
V
VOH
VCC = 4.5 V to 5.5 V,
IOH = – 0.4 mA
VCC – 2
V
VOL
VCC = 4.5 V,
IOL = 8 mA
0.35
0.5
V
II
VCC = 5.5 V,
VI = 7 V
0.1
mA
IIH
VCC = 5.5 V,
VI = 2.7 V
20
µA
IL
VCC = 5.5 V,
VI = 0.4 V
– 0.1
µA
ICCL
VCC = 5.5 V,
7
13
mA
† All typical value are at VCC = 5 V, TA = 25°C.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (see Note 2)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 Ω,
TA = 0°C to 70°C
MIN
MAX
tPLH
3
14
tPHL
3
12
tPLH
3
12
tPHL
3
14
tPLH
3
12
tPHL
3
13
tPLH
3
12
tPHL
3
14
NOTE 2: Load circuits and voltage waveforms are shown in Section 1,
ALS/AS Logic Data Book, 1986.


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