schema 6802
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pcb 6802
Here you see a 5114 memory chip (a 1024x4-bit CMOS, 4 times larger than the 5101) and part of the reset circuit. (a 2n3904). The memory chip and the reset circuit are battery buffered.
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pcb -35
Here we have our nice 5101 (256x4-bit CMOS) and the 6810 ram. The 6810 ram is not longer used, because this memory is part of the 6802.
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