The MOS Technology 6510 is an 8-bit microprocessor designed by MOS Technology.
It is a modified form of the very successful 6502.
The 6510 was only widely used in the Commodore 64 (C64) home computer and its variants.

The primary change from the 6502 was the addition of an 8-bit general purpose I/O port, although only six I/O pins were available in the most common version of the 6510.
In addition, the address bus could be made tristate.
The MOS Technology 6510 is an 8-bit microprocessor designed by MOS Technology. It is a modified form of the very successful 6502. The 6510 was only widely used in the Commodore 64 (C64) home computer and its variants.
The primary change from the 6502 was the addition of an 8-bit general purpose I/O port, although only six I/O pins were available in the most common version of the 6510. In addition, the address bus could be made tristate.
MOS Technology 6510