INTEGRATED CIRCUITS
74F139
Dual 1-of-4 decoder/demultiplexer
Product specification |
1990 Feb 23 |
IC15 Data Handbook
m n r
Philips Semiconductors |
Product specification |
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1-of-4 decoder/demultiplexer |
74F139 |
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FEATURES
•Demultiplexing capability
•Two independent 1-of-4 decoders
•Multifunction capability
DESCRIPTION
The 74F139 is a high speed, dual 1-of-4 decoder/demultiplexer. This device has two independent decoders, each accepting two binary weighted inputs (A0n, A1n) and providing four mutually exclusive active-Low outputs (Q0n±Q3n). Each decoder has an active-Low Enable (E). When E is High, every output is forced High. The Enable can be used as the Data input for a 1-of-4 demultiplexer application.
TYPE |
TYPICAL |
TYPICAL |
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PROPAGATION |
SUPPLY CURRENT |
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DELAY |
(TOTAL) |
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74F139 |
5.3ns |
13mA |
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PIN CONFIGURATION
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Ea |
1 |
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16 |
VCC |
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A0a |
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2 |
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15 |
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Eb |
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A1a |
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A0b |
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3 |
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14 |
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A1b |
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Q0a |
4 |
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13 |
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Q1a |
5 |
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12 |
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Q0b |
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Q2a |
6 |
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11 |
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Q1b |
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Q3a |
7 |
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10 |
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Q2b |
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GND |
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8 |
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9 |
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Q3b |
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SF00129 |
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ORDERING INFORMATION
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COMMERCIAL RANGE |
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DESCRIPTION |
VCC = 5V ±10%, |
PKG DWG # |
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Tamb = 0°C to +70°C |
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16-pin plastic DIP |
N74F139N |
SOT38-4 |
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16-pin plastic SO |
N74F139D |
SOT109-1 |
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INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
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PINS |
DESCRIPTION |
74F (U.L.) HIGH/LOW |
LOAD VALUE HIGH/LOW |
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Ana, Anb |
Address inputs |
1.0/1.0 |
20μA/0.6mA |
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Enable inputs (active Low) |
1.0/1.0 |
20μA/0.6mA |
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Ea, Eb |
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Data outputs (active Low) |
50/33 |
1.0mA/20mA |
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Q0n±Q3n |
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NOTE: One (1.0) FAST unit load is defined as: 20μA in the High state and 0.6mA in the Low state. |
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LOGIC SYMBOL |
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IEC/IEEE SYMBOL |
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1 |
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3 |
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15 |
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14 |
13 |
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2 |
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DEMUX |
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4 |
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0 |
G |
0 |
0 |
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5 |
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1 |
3 |
1 |
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Ea |
A0a |
A1a |
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Eb |
A0b |
A1b |
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2 |
6 |
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DECODER a |
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DECODER b |
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1 |
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3 |
7 |
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Q0a |
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Q1a |
Q2a |
Q3a |
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Q0b |
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Q1b |
Q2b |
Q3b |
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14 |
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12 |
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11 |
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13 |
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10 |
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15 |
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9 |
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4 |
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7 |
12 |
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9 |
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VCC = Pin 16 |
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GND = Pin 8 |
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SF00130 |
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SF00131 |
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February 23, 1990 |
2 |
853±0344 98903 |
Philips Semiconductors |
Product specification |
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1-of-4 decoder/demultiplexer |
74F139 |
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LOGIC DIAGRAM
Ea |
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A0a |
A1a |
1 |
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2 |
3 |
4 |
5 |
6 |
7 |
Q0a Q1a Q2a Q3a
VCC= Pin 16
GND = Pin 8
Eb |
A0b |
A1b |
15 |
14 |
13 |
12 |
11 |
10 |
9 |
Q0b |
Q1b |
Q2b |
Q3b |
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SF00132 |
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FUNCTION TABLE
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INPUTS |
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OUTPUTS |
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A0 |
A1 |
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E |
Q0 |
Q1 |
Q2 |
Q3 |
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H |
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X |
X |
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H |
H |
H |
H |
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L |
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L |
L |
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L |
H |
H |
H |
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L |
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H |
L |
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H |
L |
H |
H |
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L |
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L |
H |
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H |
H |
L |
H |
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L |
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H |
H |
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H |
H |
H |
L |
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NOTES: |
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H |
= |
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High voltage level |
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L |
= |
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Low voltage level |
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X |
= |
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Don't care |
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ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limits 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 |
RATING |
UNIT |
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VCC |
Supply voltage |
±0.5 to +7.0 |
V |
VIN |
Input voltage |
±0.5 to +7.0 |
V |
IIN |
Input current |
±30 to +5 |
mA |
VOUT |
Voltage applied to output in High output state |
±0.5 to +VCC |
V |
IOUT |
Current applied to output in Low output state |
40 |
mA |
Tamb |
Operating free-air temperature range |
0 to +70 |
°C |
Tstg |
Storage temperature range |
±65 to +150 |
°C |
RECOMMENDED OPERATING CONDITIONS
SYMBOL |
PARAMETER |
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LIMITS |
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UNIT |
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MIN |
NOM |
MAX |
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VCC |
Supply voltage |
4.5 |
5.0 |
5.5 |
V |
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VIH |
High-level input voltage |
2.0 |
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V |
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VIL |
Low-level input voltage |
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0.8 |
V |
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IIK |
Input clamp current |
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±18 |
mA |
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IOH |
High-level output current |
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±1 |
mA |
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IOL |
Low-level output current |
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20 |
mA |
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Tamb |
Operating free-air temperature range |
0 |
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+70 |
°C |
February 23, 1990 |
3 |
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