DEC - 78690 video control (DC323C)

From CPU Graveyard - Dieshots

DEC 78690 die.JPG
General Specifications:
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78690 video control (DC323C)
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Notes:
DEC 78690 (DC323C) chip on the VS40X 4 plane color graphics board. This Video Control or Address Processor (ADDER) chip is also marked as 78690 and 21-21553-02 on heatsink.