oolidjr@hubcap.UUCP (Joe Moll) (03/29/88)
Here's the followup article I promised. First I'd like to thank those again whom I've already replied to by mail for their help. Although I was told that the chip was in the '85 Memory components handbook, I couldn't find it in there. I did, however, find it in the '88 version of that manual that showed up here at school a few days ago. I'll just go through a few of the things that I was looking for. Since I'm building this EPROM burner as one of my senior projects, I needed this info, and I know some of you other hardware hackers might like a glance at it. Intel Claims .... 180ns D2764A-1 (CerDip), 200ns P2764A-2 (plastic) are Intel Intelligent Programming algorithm and Quick Pulse algorithm compatible. This Quick pulse algorithm looks pretty useful... 1 second to program and verify the chip (providing your programming equipment can move that fast). The chip also has the Intelligent Identifier circuitry built in. OKEY-DOKEY ... Here are the programming voltages (Vpp and Vcc are at 5.0v for normal use) -- Quick Pulse : Vpp -- 12.75v Vcc -- 6.25v Intelligent : Vpp -- 12.5v Vcc -- 6.0v Intelligent Identifier : Device 0x08 Manufacturer 0x88 (Plastic) 0x89 (CerDip) Thanks Again for your help. P.S. Anyone have a pinout for a NEC 43256 32k x 8 Static RAM??? Thanks in advance for any help. --Joe -- /=----------+ Joe Moll --------=\ Internet | oolidjr@hubcap.clemson.edu Clemson University \ UUCP | {pick a hub}!hubcap!oolidjr Clemson, SC \=--------+