Subject: Re: Last ZipGS RAM question... Path: lobby!newstf02.news.aol.com!portc04.blue.aol.com!newsfeed.wli.net!newsfeed.berkeley.edu!cyclone.swbell.net!typhoon01.swbell.net.POSTED!not-for-mail Message-ID: <36C4C464.A009E321@swbell.net> From: Rubywand Reply-To: rubywand@swbell.net X-Mailer: Mozilla 4.5 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.sys.apple2 References: <14864E75DFF3D43D.7BA6177037DDEDF1.5078534100881B48@library-proxy.airnews.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 60 Date: Fri, 12 Feb 1999 18:16:36 -0600 NNTP-Posting-Host: 207.193.11.21 X-Complaints-To: abuse@swbell.net X-Trace: typhoon01.swbell.net 918864985 207.193.11.21 (Fri, 12 Feb 1999 16:16:25 PDT) NNTP-Posting-Date: Fri, 12 Feb 1999 16:16:25 PDT Organization: SBC Internet Services Martin Gruen writes ... > > So it seems that no one has been able to answer the question of which 32x8 > SRAM the zip needs. > > Can someone at least point me toward a company's part # for a 15ns (Wide) > chip that they know will work? .... Wide (600 mil) package 32k x 8 fast static RAM chips are fairly rare. You may end up needing to modify the sockets (see Csa2ACCEL.txt FAQs file) and using 300 mil chips. Here are some of the faster 28-pin static SRAMs in 600 and 300 mil DIP packages ... Integrated Device Technologies (integral symbol logo) IDT71256 S(or "L" for "low power") 20-45ns available in 300 mil (TD) or 600 mil (D) ceramic DIP or 600 mil plastic DIP (P) IDT71256 SA 12-25ns available in 300 mil (P28-2) or 600 mil plastic DIP (P28-1) Cypress Semiconductor (tree logo) CY7C199 8-45ns available in 300 mil plastic DIP (P) The following are major vendors of IC's ... Digi-Key http://www.digikey.com Hamilton Hallmark http://www.em.avnet.com/semi/index.html Insight Electronics http://www.insight-electronics.com/ Mouser Electronics http://www.mouser.com Newark Electronics http://www.newark.com Wylie http://www.wyle.com/ Rubywand