Buy EPROM K-Bit 32K x 8 ns Pin DIP. 27C 27C 27C 27C 27C M27CBF1. M27CBF1. The Microchip Technology Inc. 27C is a CMOS K bit electrically Programmable Read Only Memory (EPROM). The device is organized as 32K words by. I believe the 29Cxxx series is now mostly flash memory. Digi-Key appears to have several thousand of the 32Kx8 AT28C EEPROM’s, which.
|Published (Last):||5 September 2010|
|PDF File Size:||12.26 Mb|
|ePub File Size:||14.51 Mb|
|Price:||Free* [*Free Regsitration Required]|
I’ve been using the pin DIP package. I don’t have experience with FPGAs.
27C256 – 27C256 256K EPROM Datasheet
I hope to inspire some to grad school. I believe the 29Cxxx series is now mostly flash memory. Specifically, it should be reasonably priced, reliable, easily available and likely to remain so.
Not an ‘answer’ per se, just an opinion: Broke into two comments since the edit function doesn’t seem to work Have you checked out some of the 27f256 available at www.
Could you let me know why you think a FPGA approach would be better and point me to any educational material? I don’t think you’re doing your students any favors by getting them to build stuff out of series TTL in this day and age.
Instead, describe your situation and the specific problem you’re trying to solve. Perhaps the limited available time could be used more productively with modern hardware.
27C EPROM Datasheet
They tend to be higher capacity than eeprom devices, so more address lines to tie but otherwise equivalent to eeprom for your purposes.
There is also a 8Kx8 version of the same chip with a compatible pinout unused address lines are no connects. John Miles 3 5. Home Questions Tags Users Unanswered.
This question appears to be off-topic. You didn’t say which package you are using, I assuming it is a pin DIP. I’d be happy with as few as 8 address bits we use two LSs for the PCalthough I doubt anyone makes something that small.
Robustness to student wiring mistakes would be great.
You could also try Jameco. Can 27c56 tell me anything about it? It’ll put the students in touch with the hardware in a way that an anonymous microprocessor or FPGA chip can’t match.
I’ve never used the 28C family. The goal of my course, which is the introductory and only architecture course at a liberal arts college, is for students to understand 27×256 the way down to the gate level how computers work, not to directly prepare them for industry.
What’s a good EEPROM replacement for a 27C/29C? – Electrical Engineering Stack Exchange
Ellen Spertus 2 9 It is a little cheaper in price, and also in stock. Would the 28C family be a good place to look? However, it struck me that you must be spending a lot of time getting them to the point where they understand what they’re hooking up, and why.
There are still a few parallel flash chips available in DIP, e. I also don’t care about speed. One more comment in the form of an actual answer: I like the Nexys2, personally, and the books by Haskell and Hanna look pretty good for bringing newbies up to speed.
It doesn’t need to be pin-compatible, although that would be nice.