DUAL 1-OF-4 DECODER FAST SHOTTKY TTL
MC54/74F139 DUAL 1-OF-4 DECODER
The MC54/74F139 is a high speed Dual 1-of-4 Decoder/Demultiplexer. The device has two in...
Description
MC54/74F139 DUAL 1-OF-4 DECODER
The MC54/74F139 is a high speed Dual 1-of-4 Decoder/Demultiplexer. The device has two independent decoders, each accepting two inputs and providing four mutually exclusive active LOW outputs. Each decoder has an active LOW Enable input which can be used as a data input for a 4-output demultiplexer. Each half of the F139 can be used as a function generator providing all four miniterms of two variables.
DUAL 1-OF-4 DECODER
FAST™ SHOTTKY TTL
Multifunction Capability Two Completely Independent 1-of-4 Decoders Active Low Mutually Exclusive Outputs Input Clamp Diodes Limit High-Speed Termination Effects
CONNECTION DIAGRAM
VCC 16 Eb 15 A0b 14 A1b 13 O0b 12 O1b 11 O2b 10 O3b 9
J SUFFIX CERAMIC CASE 620-09
16 1
16 1
N SUFFIX PLASTIC CASE 648-08
1 Ea
2 A0a
3 A1a
4 O0a
5 O1a
6 O2a
7 O3a
8 GND
16 1
D SUFFIX SOIC CASE 751B-03
ORDERING INFORMATION LOGIC DIAGRAM
Ea
1 2
A0a A1a
3
Eb
15
A0b A1b
14 13
MC54FXXXJ MC74FXXXN MC74FXXXD
Ceramic Plastic SOIC
LOGIC SYMBOL
1 2 3 15 14 13
E
A0 A1
E
A0 A1
O0 O1 O2 O3
O0 O1 O2 O3
4
5
6
7
12
11
10
9
4 5 6 7 O3b
12 11 10 9
O0a
O1a
O2a
O3a
O0b
O1b
O2b
VCC = Pin 16 GND = Pin 8
VCC = PIN 16 GND = PIN 8 = PIN NUMBERS
FAST AND LS TTL DATA 4-56
MC54/74F139
GUARANTEED OPERATING RANGES
Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Parameter 54, 74 54 74 Output Current — High Output Current — Low 54, 74 54, 74 Min 4.5 –55 0 Typ 5.0 25 25 Max 5.5 125 7...
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