Search found 81 matches

by sleepy9090
Wed Aug 27, 2008 1:51 pm
Forum: NES Hardware and Flash Equipment
Topic: quick mapper question and eprom question
Replies: 8
Views: 3202

quick mapper question and eprom question

1. From what I understand if i make say a cnrom dev cart, then any cnrom i dump to a eprom and load in the socket should run? 2. I picked up some 8Meg eproms with the uv window, i can use these correct? even though it is overkill (got them free) 3. Any place that shows how to create dev carts or I a...
by sleepy9090
Sat Aug 23, 2008 1:24 pm
Forum: NES Hardware and Flash Equipment
Topic: noob question - 28 pin Winbond W27C512-70 compatible?
Replies: 16
Views: 7246

So i went looking through my junk in the garage and I have a boatload of old cable modems, each one has M27C801 CMOS chip, these have the UV window, looking them up they appear to be 8M chips, http://www.datasheetcatalog.net/cgi-bin/helo.pl?text=M27C801&action=Search This one to be exact: http://www...
by sleepy9090
Fri Aug 22, 2008 7:59 pm
Forum: NES Hardware and Flash Equipment
Topic: noob question - 28 pin Winbond W27C512-70 compatible?
Replies: 16
Views: 7246

Ah here is the data sheet for the ones I have at work: http://www.datasheetcatalog.org/datasheets2/16/165171_1.pdf I will pick up a programmer tonight off ebays and start playing. I was thinking about this one: Extra WIIIIIDE URL It's overkill but I like to program other chips also. I was mistaken a...
by sleepy9090
Fri Aug 22, 2008 1:32 pm
Forum: NES Hardware and Flash Equipment
Topic: noob question - 28 pin Winbond W27C512-70 compatible?
Replies: 16
Views: 7246

ah nice, no they do not have the uv window they came from old set top boxes, I was thinking of picking up a usb programmer, so it should erase then? that's great news NROM and CNROM games, is there any disadvantage to these? What would be the better eprom to get? I've been studying the board types f...
by sleepy9090
Fri Aug 22, 2008 11:37 am
Forum: NES Hardware and Flash Equipment
Topic: noob question - 28 pin Winbond W27C512-70 compatible?
Replies: 16
Views: 7246

hmm,
No way to erase them with an eeprom programmer?

Well I thought I hit a jack pot because I have hundreds of them.

Any pointers or what would be good chips to get, I suppose I can score them on ebays or something
by sleepy9090
Fri Aug 22, 2008 10:53 am
Forum: NES Hardware and Flash Equipment
Topic: noob question - 28 pin Winbond W27C512-70 compatible?
Replies: 16
Views: 7246

noob question - 28 pin Winbond W27C512-70 compatible?

Hello I've been reading the forum off and on for a long time and finally got a break from classes to play around with nes development. At work we have cable tv boxes with the cmos chips Winbond W27C512-70, They are socketed so I removed some of them, are the useful or can I use these for a homemade ...