The UPD3301-2 by NEC is a Programmable CRT Controller. Below is the official datasheet preview.
| Part number | UPD3301-2, UPD3301 |
|---|---|
| Manufacturer | NEC |
| File Size | 321.92 KB |
| Description | Programmable CRT Controller |
| Datasheet |
 UPD3301_NEC.pdf
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| Note |
This datasheet PDF includes multiple part numbers: UPD3301-2, UPD3301. Please refer to the document for exact specifications by model. |
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Counts the characters in a row, up to the number of the characters defined in Characters/Row, Row Buffer Consists of a dual RAM buffer.Each buffer can store up to 80 characters.During a DMA operation, the characters are written into the Row Buffer.One of the buffers is used for display.Each character in the buffer is read with Character Clock (C ClKl, and the data appears in CCO_7. At the same time, the data on the next row is written into another buffer by DMA control.Buffer Input/Outp
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