Monster Memory


Posted on Nov 13, 2012

A discussion recently on the mp3projects discussion board, about using DRAM memory with small 8-bit processors without DRAM controllers, got me to take up an old idea. I thought it should be possible to hook up a DRAM to a small processor (in this case an Atmel 8515), and handle the RAS/CAS sequencing and refresh in software. As DRAM is MUCH cheaper than SRAM, it would be possible to get a large (>500kB) memory at a reasonable price. There would obviously be a speed penalty, but in some cases, this would be of no importance.


Monster Memory
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

High-level four-channel mixer
20Mhz-clock-phase-lock
Night Safety Light For Autos
Hum Filter Remove AC Line Noise Pre Amp Circuit for Hi-Fi Amplifier Audio Systems
arduino freertos fan rpm video
60watt rf radio frequency
3 channel audio splitter
Protection For Telephone Line
SDR TX 50MHz
DK-5A, DK-5AD AC power control circuit
SE9518 holiday lights ASIC



Top