Post by thread:[BUY]: Looking for 74143 or 74LS143!

Sheez, I am having a hard time finding three of either of these parts. Even the discontinued suppliers find out I want only 3 and say 'Uh, well call you right back'. They come in a wide dip24. Anyone have three in their stuff? I will pay or trade for them. Thanks Chris Eddy -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

> Sheez, I am having a hard time finding three of either of these parts. > Even the discontinued suppliers find out I want only 3 and say 'Uh, well > call you right back'. > > They come in a wide dip24. > > Anyone have three in their stuff? I will pay or trade for them. I don't have any, but I'm curious, what is it? I couldn't find it in any of my quick references? Thanks, TTYL -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

Herbert Graf wrote: I don't have any, but I'm curious, what is it? I couldn't find it in any of my quick references? Thanks, TTYL Dale Botkin wrote: > > What's that do? I may be able to dig up a few out of the junque box, not > sure if I have any or not. I have an awful lot of old TTL/LS/HC/FAST > stuff in drawers at home (need any 4116 DRAM?). 8-) > This part is used to drive a single LED digit, and three make a three digit counter. I designed a new product for the customer, and this one is a pre-me unit that they want repaired somehow. The 5V regulator gave up and the oh so delicate logic was exposed to 20V indefinitely. Thanks much Chris~ -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

On Wed, 17 Jan 2001, Chris Eddy wrote: > Herbert Graf wrote: > > I don't have any, but I'm curious, what is it? I couldn't find it in any > of my quick references? Thanks, TTYL > > Dale Botkin wrote: > > > > > What's that do? I may be able to dig up a few out of the junque box, not > > sure if I have any or not. I have an awful lot of old TTL/LS/HC/FAST > > stuff in drawers at home (need any 4116 DRAM?). 8-) > > > > This part is used to drive a single LED digit, and three make a three digit > counter. I designed a new product for the customer, and this one is a pre-me > unit that they want repaired somehow. The 5V regulator gave up and the oh so > delicate logic was exposed to 20V indefinitely. OK, I'm fairly certain I won't have any of those. I was very partial to TIL311 LED displays when I had to use LEDs -- builtin decoder/driver, feed it 4 bits and get a hex digit. I was lucky enough to pick up a couple of tubes for free... simple to use, but those were pricey little critters!! Dale --- The most exciting phrase to hear in science, the one that heralds new discoveries, is not "Eureka!" (I found it!) but "That's funny ..." -- Isaac Asimov -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

> Herbert Graf wrote: > > I don't have any, but I'm curious, what is it? I couldn't find it in any > of my quick references? Thanks, TTYL > > Dale Botkin wrote: > > > > > What's that do? I may be able to dig up a few out of the junque box, not > > sure if I have any or not. I have an awful lot of old TTL/LS/HC/FAST > > stuff in drawers at home (need any 4116 DRAM?). 8-) > > Chris Eddy Wrote > > This part is used to drive a single LED digit, and three make a three digit > counter. I designed a new product for the customer, and this one is a pre-me > unit that they want repaired somehow. The 5V regulator gave up and the oh so > delicate logic was exposed to 20V indefinitely. > Oh No I'm going to have to resort to my paper archives. Why not emulate the part with a PIC ? Regards Chris -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

Chris Eddy wrote: > > Sheez, I am having a hard time finding three of either of these parts. > Even the discontinued suppliers find out I want only 3 and say 'Uh, well > call you right back'. > > They come in a wide dip24. > > Anyone have three in their stuff? I will pay or trade for them. > > Thanks > Chris Eddy > http://www.micronica.com.au/~micronica/pricelist/chips.htm Listed at $US3.00 each -- Best regards Tony mICro's http://www.picnpoke.com spam_OUTsalesTakeThisOuTpicnpoke.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

IC Master <http://www.icmaster.com> reports: Part Number 74143 SN74143 Manufacturer Rochester Texas Instruments Status Active Temperature Range Com Low Voltage (3.3V or less) YES Packages DIP Category Miscellaneous Counters Subcategory - Technology TTL Process Technology TTL Function Decade Counter/Latch, LED/Lamp Driver (constant current output) You can also look at the 4510 4511 combination. This is what I used before PICS. But as an after thought, I would use a PIC as a replacement nowadays anyway (time spend searching, etc, etc...). Quentin -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

Don't give up hope just yet, I might have some at home, seriously. -----Original Message----- From: Tony Nixon [.....Tony.NixonKILLspam@spam@ENG.MONASH.EDU.AU] Sent: Wednesday, January 17, 2001 4:30 PM To: PICLISTKILLspamMITVMA.MIT.EDU Subject: Re: [BUY]: Looking for 74143 or 74LS143! Chris Eddy wrote: {Quote hidden}> > Sheez, I am having a hard time finding three of either of these parts. > Even the discontinued suppliers find out I want only 3 and say 'Uh, well > call you right back'. > > They come in a wide dip24. > > Anyone have three in their stuff? I will pay or trade for them. > > Thanks > Chris Eddy > http://www.micronica.com.au/~micronica/pricelist/chips.htm Listed at $US3.00 each -- Best regards Tony mICro's http://www.picnpoke.com .....salesKILLspam.....picnpoke.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

Chris Carr wrote: {Quote hidden}> > > Herbert Graf wrote: > > > > I don't have any, but I'm curious, what is it? I couldn't find it in > any > > of my quick references? Thanks, TTYL > > > > Dale Botkin wrote: > > > > > > > > What's that do? I may be able to dig up a few out of the junque box, > not > > > sure if I have any or not. I have an awful lot of old TTL/LS/HC/FAST > > > stuff in drawers at home (need any 4116 DRAM?). 8-) > > > > Chris Eddy Wrote > > > > This part is used to drive a single LED digit, and three make a three > digit > > counter. I designed a new product for the customer, and this one is a > pre-me > > unit that they want repaired somehow. The 5V regulator gave up and the oh > so > > delicate logic was exposed to 20V indefinitely. > > > Oh No I'm going to have to resort to my paper archives. > > Why not emulate the part with a PIC ? Or, emulate them with 7447 7448 7449, 74247 etc, these are 16 pin chips with 4bit bcd inputs and seven seg driver. Available in active high or low outputs. Surely you can patch a 16 pin chip in place quicker and cheaper than a PIC solution (sorry PIC brothers!) :o) -Roman -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics

Roman Black wrote: snip > Surely you can patch a 16 pin chip in place quicker > and cheaper than a PIC solution (sorry PIC brothers!) > :o) > -Roman Now where's the fun in that? :) Quentin -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics

On Thu, 18 Jan 2001 15:11:16 +0200, you wrote: >Roman Black wrote: >snip >> Surely you can patch a 16 pin chip in place quicker >> and cheaper than a PIC solution (sorry PIC brothers!) >> :o) >> -Roman >Now where's the fun in that? > >:) >Quentin ..or you could do a litte surface-mount PCB to emulate the old device's footprint. That would be slightly more fun, but not much. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics