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- Path: 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
- X-Maildoor: WaflineMail 1.00r
-
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- 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
-
-