标题: Please adding some prom N82s191CN3 , pal 20,16.., and uc.68705...many thanks [打印本页] 作者: alfxgT56 时间: 2021-6-5 01:08 标题: Please adding some prom N82s191CN3 , pal 20,16.., and uc.68705...many thanks
Hello !
I need to copy prom and pal and 68705p3..
I come from try to read Pal20R8 and PAL16r6..the Gal20V8 and PALCE20V8 is about pin to pin compatible..but unable to read...some pin
is hard coded not soft like 20V8 i think this why this is not readable with the GAL algorithme . Please could you add the read and write algorithme for this chips to the T56..
And the
N82s191CN3 or CY7C291A this same chip and this is very very simple one ..like a uv rom 2k 8bit but not exactly same pinout...
i have view the 27c16 type etc but not same pinout ce an Adress Ax line).
Many thanks .. perhaps i can help ? or perhaps could you give the trick to be able to add myself new chip algorithm to my T56.
Pal20R8 and PAL16r6..and PALCE20V8 etc.
These chips are old chips, and it is difficult to obtain programming algorithms from manufacturers. So there is no way to join yet.
If someone can provide these programming algorithms, we will be able to join support soon.
MS2532 TMS25L32 TMS2532A MCM68766 TMS2516 TMS2564
N82s191CN3 or CY7C291A
We are testing above, these chips require a relatively large VCC and VPP current.作者: alfxgT56 时间: 2021-6-6 18:44
I have found old article of manual programmer for this type of chips i put the link here.
The language is french hope this can help anywhere.
For the older bipolar PROMs such as N82s191CN3 or CY7C291A, only READ support is important to me. PROGRAM support can be left out.
A general reference of these chips can be found here: http://www.andysarcade.de/data/e ... ts/xref_bp_prom.txt . Datasheets can be found online.
附件: tms2564.pdf (2022-2-17 10:16, 512 KB) / 下载次数 10295