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.
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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. You didn’t say which package you are using, I assuming it is a pin DIP. I find the hands-on work, including the debugging, to really get this information across to all levels of students. Can you tell me anything about it?
I’ve never used the eproj family. I epron the 29Cxxx series is now mostly flash memory.
5x 27C Kb 32Ko UV eprom
I also don’t care about speed. It doesn’t need to be pin-compatible, although that would be nice. JohnMiles, could you elaborate?
The instructions are read by a low-speed TTL computer they build. Instead, describe your situation and the specific problem you’re trying to solve.
This question appears to be off-topic. There are still a few parallel flash chips available in DIP, e. I like the Nexys2, personally, and the books by Haskell and Hanna look pretty good for bringing newbies up to speed.
27C EPROM Technical Data
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. Perhaps the limited available time could be used more productively with modern hardware. It’ll put the students in touch with the hardware in a way that an anonymous microprocessor or FPGA chip can’t match.
The users who voted to close gave this specific reason: One more comment in the form of an actual answer: Ellen Spertus 2 9 I’ve been using the pin DIP package. You could also try Jameco. Home Questions Tags Users Unanswered. They tend to be higher capacity than eeprom devices, so more address lines to tie but otherwise equivalent to eeprom for your purposes.
Specifically, it should be reasonably priced, reliable, easily available and likely to remain so. The goal of my course, which is the introductory and only architecture course at a liberal arts college, is for students to understand all the way down to the gate level how computers work, not to directly prepare them for industry.
Not an ‘answer’ per se, just an opinion: John Miles 3 5. However, it struck me that you sprom be spending a lot of time getting them to the point where they understand what they’re hooking up, and why. There is also a 8Kx8 version of the same chip with a compatible pinout unused address lines are no connects.
Lot 10X eprom 27C256 or 27256 + Flash programmation included
Epron is a little cheaper in price, and also in stock. I don’t have experience with FPGAs. Robustness to student wiring mistakes would be great.