home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky sci.electronics:18603 comp.robotics:2287
- Newsgroups: sci.electronics,comp.robotics
- Path: sparky!uunet!news.tek.com!uw-beaver!cs.ubc.ca!destroyer!sol.ctr.columbia.edu!zaphod.mps.ohio-state.edu!n8emr!elektro!bluemoon!towers!grafted!paul
- From: paul@grafted.UUCP (james caldwell)
- Subject: Re: on 74ls139
- Message-ID: <2k0XTB1w161w@grafted.UUCP>
- Sender: bbs@grafted.uucp (bbs)
- Organization: GRAFTED, Central Indiana's Usenet BBS 317-881-4369
- References: <1992Nov4.155302.24319@newstand.syr.edu>
- Date: Sun, 08 Nov 92 21:18:12 CST
- Lines: 39
-
- martinez@rodan.acs.syr.edu (Kenneth Mtz. (YONIX)) writes:
-
- >
- > Could anyone tell me more about what this device does (?)
- > What is the pinout layout?
- >
- > Thanks,
- > Kenn.
- >
-
- This is taken from NTE substitution index, get a copy by calling
- NTE at 201-748-5089 and asking for a local distributor (may
- be free from them)
- description : ic-ttl, low power schottky, dual 2 to 4 decoder
- demultiplexer.
- pin 1 1g enable pin 16 vcc
- pin 2 select 1a pin 15 enable 2g
- pin 3 select 1b pin 14 select 2a
- pin 4 1 y 0 pin 13 select 2b
- pin 5 1 y 1 pin 12 data output 2 y 0
- pin 6 1 y 2 pin 11 data output 2 y 1
- pin 7 1 y 3 pin 10 data output 2 y 2
- pin 8 ground pin 09 data output 2 y 3
-
- If you need more infor (data sheet) you will need to ask a
- manufacturer for a data sheet, just about all make these logic
- chips. They are a staple of their sales. texas instrument and motorola.
- To get single units. Nte is a good choice.
- Also in any issue of Radio Electronic you can find lots of companies
- selling these for really cheap prices (under 1.00) but they may
- have a min charge. Nte may provide a data sheet, ask them.
-
- --
- james caldwell
- The Grafted Branch BBS
- 317-881-4369
- internet: paul@grafted.UUCP
- uucp: ..!uunet!grafted.UUCP!paul
- = = Grafted Branch BBS (317) 889-6997 2 Gig on-line = =
-