Microcomputer circuit

  
This is a 8048/IM80C48 Microcomputer with 8 character 16-segment ASCII triplex liquid crystal display. The two bit character address is merged with the data and written to the display driver under the control of the WR line.
Microcomputer circuit - schematic

Port lines are used to either select the target driver, or deselect all of them for other bus operations.




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