This is the 6500/1P was an advanced version of the 6502 and was used by Commodore computers to control the Amiga keyboard and the 1520  printer/plotter.  Its a microcontroller with a 6502 core.  It contains an internal ROM which contains the characters in the picture (thanks to Jim Brain).  Other than that its an 8 bit NMOS microcomputer on a single chip and is totally upward/downward software compatible with all members of the 6500 family including the 6502.

2048 bytes of masked ROM memory mapped from 800 to FFF. 

64x8 RAM, 

1Mhz-3Mhz, 

flexible interface circuitry that includes a 16 bit programmable counter/latch with 4 operating modes, 

32 bidirectional I/O lines, 

5 interrupts and a counter I/O line.

It is not pin for pin compatible to the 6502.

If you need the datasheet, please ask although I am sure you can located on-line or I can provide it via email or copy with your order, please send me a note requesting it when you purchase.