Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!yale!cmcl2!panix!schuster From: schuster@panix.uucp (Michael Schuster) Newsgroups: comp.sys.intel Subject: Re: 8751s, programming and erasing questions Message-ID: <1991Jan1.002525.7128@panix.uucp> Date: 1 Jan 91 00:25:25 GMT References: <1990Dec31.205254.4929@eplrx7.uucp> Distribution: usa Organization: PANIX - Public Access Unix Systems of NY Lines: 19 In article <1990Dec31.205254.4929@eplrx7.uucp> milbouma@eplrx7.uucp (Mark Milbourne SCD) writes: >Also, I'm using the P-87C51FA-1 (16MHz version in plastic case). This is >the first time I've seen the plastic version (I'm too poor for the >ceramic). I'm confused by the seemingly all-opaque case. Where's the >little "window" for the UV to shine into to erase it? I've only got 5 of Ummm .... hate to tell you this but .... If it's in a plastic case, the device has a "one shot" EPROM. The only way for you to erase it would be to drill out your own window . That's why the plastic devices are cheaper. -- l\ /l ' _ Mike Schuster ...!cmcl2!panix!schuster l \/ l l l/ (_ NY Public Access CIS:70346,1745 l l l l\ (_ UNIX Systems MCI Mail,GEnie:MSCHUSTER