Hey guys, a friend of mine was looking into making some genesis repros, and we were using 27c160s for 2megs and 27c322s for 4megs. So I know that the 27c801s are 1Mb but at 8bit. So I thought about it and looked for 27c800s and see that they're 1meg x 8 bit OR 512 x 16 bit. Looking at the address pins it goes only up to A18 which is 512kb. Wheres the other address pin for the 1 meg 8 bit? And can this be used to make a 1mb size game for 16 bit? I also see that theres 27c400s and it seems to be the same just cut in half (512 x 8 or 256 x 16). Can someone clarify this for me?
Looking at a datasheet for an ST27c800, pin 30 is a data/address pin (Q15A-1). Could that be it?
http://html.alldatasheet.com/html-pdf/2 ... 7C800.html
Looking at a datasheet for an ST27c800, pin 30 is a data/address pin (Q15A-1). Could that be it?
http://html.alldatasheet.com/html-pdf/2 ... 7C800.html