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Z80 STI RS232 interface

31 bytes added, 17:33, 10 May 2010
== Used components: ==
* 1x [[Media:Mostek_3801_Data.pdf|Z80-STI (MK3801-4)]]
* 1x SN75189 - RS232 to TTL level shifter
* 1x SN75188 - TTL to RS232 level shifter
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