On 7/17/06, Marty Robertson wrote: > I looked around for it to and can find nothing on National's website for the > exact part you mentioned. Here is a similar part/part number > http://www.national.com/pf/DS/DS8669.html#Datasheet . This part has been > discontinued, I notice. Can you use a different part? > > > > > On 7/17/06, Paul James E. wrote: > > > > > > All, > > > > Does anyone have a copy of the datasheet for a > > National Semiconductor Part, part number DS8858? > > This is a BCD-7 Segment Decoder/Driver (I assume). > > I looked on the web and can find it, but you have > > to be a paying member of the site organization to > > be able to use it. I don't want to pay for something > > I won't use more than once. > > > > If anyone has a copy, email it to me please. > > > > > > Thanks and Regards, > > > > Jim > > The pinout is on a Chinese page: 1 INPUTS B 9 e OUTPUTS 2 INPUTS C 10 d OUTPUTS 3 LAMP TEST 11 c OUTPUTS 4 RB OUTPUT 12 b OUTPUTS 5 RB INPUT 13 a OUTPUTS 6 INPUT D 14 g OUTPUTS 7 INPUT A 15 f OUTPUTS 8 GND 16 Vcc Better than nothing. Compare with the DS8869 datasheet and you'll have a pretty good idea of how the part works. Regards, Mark markrages@gmail -- You think that it is a secret, but it never has been one. - fortune cookie -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist