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6850 - Revision history
2026-04-19T08:11:19Z
Revision history for this page on the wiki
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WikiSysop: Created page with "'''Asincronous Communications Interface Adapter (ACIA)''' {| style="float: right;" border="1" cellpadding="4" cellspacing="0" class="sortable" |+ style="background:silver" | ..."
2018-01-07T21:26:02Z
<p>Created page with "'''Asincronous Communications Interface Adapter (ACIA)''' {| style="float: right;" border="1" cellpadding="4" cellspacing="0" class="sortable" |+ style="background:silver" | ..."</p>
<p><b>New page</b></p><div>'''Asincronous Communications Interface Adapter (ACIA)'''<br />
<br />
{| style="float: right;" border="1" cellpadding="4" cellspacing="0" class="sortable"<br />
|+ style="background:silver" | Cross-Reference<br />
!BRAND<br />
!TAG<br />
!NUMBER<br />
!CLOCK<br />
!MARKINGS<br />
|-<br />
| Altera || A || 6850 || 1.0 MHz || A6850<br />
|-<br />
| Gould || S || 6850 || 1.0 MHz || S6850<br />
|-<br />
| Gould || S || 68A50 || 1.5 MHz || S68A50<br />
|-<br />
| Gould || S || 68B50 || 2.0 MHz || S68B50<br />
|-<br />
| Motorola || MC || 6850 || 1.0 MHz || MC6850<br />
|-<br />
| Motorola || MC || 68A50 || 1.5 MHz || MC68A50<br />
|-<br />
| Motorola || MC || 68B50 || 2.0 MHz || MC68B50<br />
|}<br />
<br />
=Pinout=<br />
<pre><br />
DIP24-600mil<br />
+--\/--+<br />
Vss |1 24| *CTS<br />
Rx DATA |2 23| *DCD<br />
Rx CLK |3 22| D0<br />
Tx CLK |4 21| D1<br />
*RTS |5 20| D2<br />
Tx DATA |6 19| D3<br />
*IRQ |7 18| D4<br />
CS0 |8 17| D5<br />
*CS2 |9 16| D6<br />
CS1 |10 15| D7<br />
RS |11 14| E<br />
Vcc |12 13| R/*W<br />
+------+<br />
</pre><br />
<br />
=Frequency=<br />
Set reader to FREQ, put black probe to GND, red probe to 3,4 to measure CPU clock<br />
<br />
=External links=<br />
[http://www.cpu-world.com/Support/6809.html "6809 support chips" page on CPU-World]<br />
<br />
=Files=<br />
<gallery widths="150px"><br />
File:A6850.pdf|A6850 Datasheet<br />
File:MC6850.pdf|MC6850 Datasheet<br />
File:S6850.pdf|S6850 Datasheet<br />
</gallery><br />
<br />
[[Category:Other Chips]]<br />
[[Category:DIP24-600mil]]</div>
WikiSysop