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參數(shù)資料
| 型號： | SN54LS139 |
| 廠商： | Motorola, Inc. |
| 英文描述： | DUAL 1-OF-4 DECODER/ DEMULTIPLEXER |
| 中文描述： | 雙1 - - 4解碼器/解復用器 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 173K |
| 代理商： | SN54LS139 |
5-235
FAST AND LS TTL DATA
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.
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
CONNECTION DIAGRAM DIP
(TOP VIEW)
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
PIN NAMES
LOADING
(Note a)
HIGH
LOW
A0, A1
E
O0–O3
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.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40
μ
A 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 DIAGRAM
SN54/74LS139
DUAL 1-OF-4 DECODER/
DEMULTIPLEXER
LOW POWER SCHOTTKY
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
Ceramic
Plastic
SOIC
16
1
D SUFFIX
SOIC
CASE 751B-03
LOGIC SYMBOL
DECODER a
DECODER b
相關PDF資料 |
PDF描述 |
|---|---|
| SN54LS139J | DUAL 1-OF-4 DECODER/ DEMULTIPLEXER |
| SN74LS139D | DUAL 1-OF-4 DECODER/ DEMULTIPLEXER |
| SN74LS139N | DUAL 1-OF-4 DECODER/ DEMULTIPLEXER |
| SN54LS148J | 10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS |
| SN54LS748J | Data Selector/Multiplexer 2-Input Q; Package: TSSOP-16; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2500 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SN54LS139AJ | 制造商:Texas Instruments 功能描述:Decoder/Demultiplexer Dual 2-to-4 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:DECODER/DEMLTPLXR DUAL 2-TO-4 16CDIP - Rail/Tube 制造商:Texas Instruments 功能描述:DUAL 3-TO-4 DECODER/DEMLITIPLEXER |
| SN54LS13J | 制造商:Texas Instruments 功能描述: |
| SN54LS145J | 制造商:Texas Instruments 功能描述:Decoder/Driver Single 4-to-10 16-Pin CDIP Tube |
| SN54LS148J | 制造商:Texas Instruments 功能描述:Encoder 8-to-3 Priority Bipolar 16-Pin CDIP Tube 制造商:Texas Instruments 功能描述:ENCODER 8-TO-3 PRIORITY BIPOLAR 16CDIP - Rail/Tube |
| SN54LS14J | 制造商:Texas Instruments 功能描述:Inverter Schmitt Trigger 6-Element Bipolar 14-Pin CDIP Tube 制造商:Texas Instruments 功能描述:INVERTER SCHMITT TRIGGER 6-ELEM BIPOLAR 14CDIP - Rail/Tube 制造商:Texas Instruments 功能描述:HEX SCHMITT TRIGGERS |
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