14 Mar
2013
14 Mar
'13
11 a.m.
The early PDP-11 uses a ?DEC 1801 UART? in multiple modules. I?ve had no
luck identifying a comparable chip that could be substituted when doing
repairs as there?s a remarkable dearth of information regarding the
characteristics of this part, excepting the pin-out as seen in engineering
drawings. (No, I haven?t yet tried pin-out matching ... next step.)
Ideally the part would be both HW and SW compatible, but clearly SW
compatibility is key!
Does anyone have any experience with this part, repairing boards where this
part has failed, or other words-of-wisdom to offer?
Thanks,
paul