MOS Technology VIC-II
Videos
The VIC-II, specifically known as the MOS Technology 6567/6566/8562/8564, 6569/8565/8566 (PAL), is the microchip tasked with generating Y/C video signals and DRAM refresh signals in the Commodore 64 and Commodore 128 home computers.
MOS 6569R3 (PAL version) on a C64 main board
MOS Technology 6581
Videos
The MOS Technology 6581/8580 SID is the built-in programmable sound generator chip of the Commodore CBM-II, Commodore 64, Commodore 128, and MAX Machine home computers.
MOS Technology SIDs. The left chip is a 6581. The right chip is an 8580. 'CSG' stands for Commodore Semiconductor Group. The numbers 3884 and 0692 are in WWYY form, i.e. the chips were produced week 38 of 1984 and week 06 of 1992. The last number is assumed to be a batch number.
6581R1 produced in 1982
6581 produced in 1982
6581R4 CDIP produced in 1986