Re: on 74ls139

Article View: comp.robotics

Article #900

#900

From: Cyberman
Date: Tue, 10 Nov 1992 01:24

25 lines
1079 bytes

   Kenneth Mtz. (yonix) was espousing about 'on 74ls139',
   on [11-04-92  20:53] to All!
 KM(> Could anyone tell me more about what this device does (?)
 KM(> What is the pinout layout?

    That is a dual 4 line decoder here is the pinout

                __ __
Enable     1G  |1 U16| VCC
Select   / 1A  |2  15| 2G   Enable
         \ 1B  |3  14| 2A \ Select
          /1Y0 |4  13| 2B /
Data     / 1Y1 |5  12| 2Y0 \
Outputs  \ 1Y2 |6  11| 2Y1  \ Data
          \1Y3 |7  10| 2Y2  / Outputs
           GND |8   9| 2Y3 /

outputs are active LOW
Enable active low.

    Cyberman
... Don't steal...the government hates competition
--- Blue Wave/QWK v2.10

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Path: arc1-ca.pugleaf.net!sparky!uunet!ukma!cs.widener.edu!dsinc!ub!toz!cyberman
From: cyberman@toz.buffalo.ny.us (Cyberman)
Newsgroups: comp.robotics
Subject: Re: on 74ls139
Message-ID: <gate.ZR2ZTB1w165w@toz.buffalo.ny.us>
Date: 10 Nov 92 01:24:46 GMT
Lines: 25
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