Why 3.3 volts? Is there some good reason for that (the ROM only comes in an LV version or something)? Just curious > I've now almost designed the printed circuit board for the VIC-20 memory > cartridge. It'll have 4 chips on the top side: Am29LV160D (2MB Flash > ROM), HM62256B (32kB SRAM), 74LVX245 (data bus buffer), and Lattice 2032 > programmable logic chip. On the bottom side there are only two 74LVX245 > chips that buffer the address lines. > > The 3.3 volt regulator and the programming interface for the Lattice 2032 > are missing, Presummably the 74LVX245 does the level translation, but 74LVX__ aren't dual supply are they? (the 74LVX__ are 5V tolerant in, but isn't there some other family for driving 5V?) bogax - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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