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mcmaster:nec:d7220d [2019/04/19 16:25] mcmaster |
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| - | ====== Package ====== | ||
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| - | < | ||
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| - | {{: | ||
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| - | ====== Die ====== | ||
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| - | [[https:// | ||
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| - | * [[https:// | ||
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| - | ====== Additional Information ====== | ||
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| - | The uPD7220 was designed by Tetsuji Oguchi, and information and schematics for the 7220 and 7220A can be found on his website: http:// | ||
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| - | The schematics are at http:// | ||
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| - | The patents for certain covering the the 7220 are: | ||
| - | 4,459,676 - covers the accelerated bresenham curve drawing scheme | ||
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| - | Other patents which probably cover the 7220 are: | ||
| - | 4,356,482 | ||
| - | 4,491,834 | ||
| - | 4,545,014 | ||
| - | 4,570,222 | ||
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