With an adapter socket, a 2732 can be used as replacement character ROM, see the thread "Request help on replacing 2332 4Kx8 Char ROM -> Fixing a VIC".
However, the character ROM is not only used by VIC to display text screens with the standard font - the CPU also has access and there actually exist quite a few programs that show unexpected behaviour when the contents of the character ROM are changed from the default.
If you want to use the C64 character set on a VIC-20, or vice versa, you always have the option to use a copy in RAM for that.
VIC20 / C64 chargen
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Re: VIC20 / C64 chargen
Correct.Mike wrote:With an adapter socket, a 2732 can be used as replacement character ROM, ...
See pinouts here: (where ROM is the pinout of the 2332)
The socket is not very complicated, swapping pins 18 and 21 does the job.
Added edit: the C64 CG ROM has a custom characteristic, the CS2 (pin 21) is active high.
Be normal.