Digikey has the part listed ($166 each) and their page has a link to the datasheet that seems to have the pga package:
Digikey https://www.digikey.com/en/products/detail/rochester-electronics-llc/49C402GB/12112112 Direct to Datasheet https://rocelec.widen.net/view/pdf/rbdjetrmoo/IDTIS12976-1.pdf?t.download=true&u=5oefqw Will > On 03/07/2025 4:04 PM EST Wayne S via cctalk <cctalk@classiccmp.org> wrote: > > > Try here. > Might have to create an account. > <https://www.jotrin.com/product/parts/49C402BG84> > IDT - 49C402BG84<https://www.jotrin.com/product/parts/49C402BG84> > jotrin.com<https://www.jotrin.com/product/parts/49C402BG84> > [favicon.ico]<https://www.jotrin.com/product/parts/49C402BG84> > > Sent from my iPhone > > On Mar 7, 2025, at 12:42, Holm Tiffe via cctalk <cctalk@classiccmp.org> wrote: > > Hi all, > > I'm dreaming to build sometimes my own Bit Slice CPU (when I have spare time) > and I have collected several IC's in the last years for this purpose. > > Today a small antistatic bag with 4x IDT49C402BG84 and two IDT 49C410J > fell in my hands while I was sorting some stuff. > > I know what they are and what they could do, they are able to help me > to build a Bit Slice CPU w/o very large PCB's connecting hordes of 2901 etc. > Besides of that they are CMOS and should draw much less power. > But I have a problem with the 49C402: All datasheets that I could find > until now, don't have the pinput auf that nice PGA84 package, there are > DIP68, LCC/PLCC68 G68 or PG68 and QE68 "Cerquad" pinouts listet in every > datasheet, but I have 4 chips in a PGA84 housing... > > This ebay page has pictures: https://www.ebay.com/p/10020043211 > I don't have anything todo with the seller. > > Can anyone help finding the pinout? > The chips itself don't seem to that seldom... > > Kind Regards, > Holm > -- > Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, > Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583 > i...@tsht.de Tel +49 37292 709778 Mobil: 0172 8790 741 You just can't beat the person who never gives up. Babe Ruth
