| ??? 08/14/08 17:52 Read: times |
#157488 - Continuing... Responding to: ???'s previous message |
Stefan --
I was wrong. The chip is an AMD 27C128 -- 16kx8. Oops. So far I've replaced an 80C32 with the 85C154 -- with no problem -- in an ancient HTE DryICE. The piggy-back EPROM checks O.K., so I'm starting to suspect something with the piggy-back interface. <Sigh. Followed by a BIG sigh.> --Rich |
| Topic | Author | Date |
| Dead Micro? | 01/01/70 00:00 | |
| ? RST is tied to Vss through a 10uF tantalum cap | 01/01/70 00:00 | |
| Update | 01/01/70 00:00 | |
| We have to wonder ... | 01/01/70 00:00 | |
| ROM | 01/01/70 00:00 | |
| Continuing... | 01/01/70 00:00 | |
| Why suspect the piggy-back interface? | 01/01/70 00:00 | |
| To: The other Richard | 01/01/70 00:00 | |
Way too easy to fool myself | 01/01/70 00:00 | |
| the datasheet doesn\'t specify the cap | 01/01/70 00:00 |