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Schmitzi

TI 99 - Hardware Identification needed

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I used the board to make a GRAM-device (like GRAM-Kracker) with battery backup and logic for bank switching the >6000 ROM XB-style.

The two stacked NEC D43256 are the GRAM, two 6264 (below the leaked battery) are the ROM (when write protected).

20200722_170838.thumb.jpg.947f09c37cc9e6472d1d87199729e2a6.jpg

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