[cctalk] Re: Looking for datasheet of RTC M3001 ...

2023-04-13 Thread Bernd Kopriva via cctalk
I have compared the pinout of the MM58167 with the diagram given in the 
Ceres-3 Hardware description ...
... unfortunately, these are completely different, so your assumption 
seems not be valid :-(


Liam Proven via cctalk wrote on 13.04.23 15:38:

On Tue, 11 Apr 2023 at 17:41, Bernd Kopriva via cctalk
 wrote:

Does anyone have a pointer to the datasheet ?

A comment on book said:

«
For me, 'National Semiconductor' and 'RTC' together mean their own
design of the MM58167 that was used on the AST multi-I/O and memory
expansion adapters for the PC and the PS/2 Model 30. I guess that RTC
was sourced differently later.
»





[cctalk] Re: Looking for datasheet of RTC M3001 ...

2023-04-13 Thread Liam Proven via cctalk
On Tue, 11 Apr 2023 at 17:41, Bernd Kopriva via cctalk
 wrote:
> Does anyone have a pointer to the datasheet ?

A comment on book said:

«
For me, 'National Semiconductor' and 'RTC' together mean their own
design of the MM58167 that was used on the AST multi-I/O and memory
expansion adapters for the PC and the PS/2 Model 30. I guess that RTC
was sourced differently later.
»

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