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SN54LS139JD PDF预览

SN54LS139JD

更新时间: 2024-11-29 13:13:43
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 解码器解复用器
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5页 176K
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SN54LS139JD 数据手册

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SN54/74LS139  
DUAL 1-OF-4 DECODER/  
DEMULTIPLEXER  
The LSTTL/MSI SN54/74LS139 is a high speed Dual 1-of-4 Decoder/De-  
multiplexer. 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 LS139 can be used as a function  
generator providing all four minterms of two variables. The LS139 is  
fabricated with the Schottky barrier diode process for high speed and is  
completely compatible with all Motorola TTL families.  
DUAL 1-OF-4 DECODER/  
DEMULTIPLEXER  
LOW POWER SCHOTTKY  
Schottky Process for High Speed  
Multifunction Capability  
Two Completely Independent 1-of-4 Decoders  
Active Low Mutually Exclusive Outputs  
Input Clamp Diodes Limit High Speed Termination Effects  
ESD > 3500 Volts  
J SUFFIX  
CERAMIC  
CASE 620-09  
16  
1
CONNECTION DIAGRAM DIP (TOP VIEW)  
N SUFFIX  
PLASTIC  
CASE 648-08  
NOTE:  
16  
The Flatpak version  
has the same pinouts  
(Connection Diagram) as  
the Dual In-Line Package.  
1
D SUFFIX  
SOIC  
CASE 751B-03  
16  
1
PIN NAMES  
LOADING (Note a)  
HIGH  
LOW  
ORDERING INFORMATION  
A , A  
0
Address Inputs  
Enable (Active LOW) Input  
Active LOW Outputs (Note b)  
0.5 U.L.  
0.5 U.L.  
10 U.L.  
0.25 U.L.  
0.25 U.L.  
5 (2.5) U.L.  
1
E
SN54LSXXXJ Ceramic  
SN74LSXXXN Plastic  
SN74LSXXXD SOIC  
O O  
0
3
NOTES:  
a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.  
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)  
Temperature Ranges.  
LOGIC SYMBOL  
LOGIC DIAGRAM  
DECODER a  
DECODER b  
FAST AND LS TTL DATA  
5-235  

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