====Amiga Chipsets=====

====Graphic  Chipsets====

^Released^Acronym and Extended Name^Models that used it^
|1985|OCS - Original Chipset|A1000, A2000, A500|
|1990|ECS - Extended Chipset|A3000, A500+, A600, A2000|
|1992|AGA - Advanced Graphics Architecture |A1200, A4000, CD32|

====Custom Chips====



===Agnus===

  * This is the main graphics chip for Amigas.
  * You can swap 8370 (512KB) and 8372(1024KB) chips whenever/wherever you like. Of course memory limits are tied to the chip.
  * You can't swap an 8375 (2MB) for a 512/1024KB chip and get more memory. There are other changes needed to for the large memory addresses.
  * Format/package - (84) contact PLCC Fat Agnus (named Fat Lady on most Amiga 2000 motherboards) 8370; 8371; 8372; 8372A; 8372AB; 8372B; 8375
  * 8372B and 8375 - SuperFat Agnus with 2MB, hard to find, grab it if you can get it, I //think// this is the standard chip for all ECS machines
  * Agnus became Alice in the A4000/A1200

^Chip Name^Chip Number^Part Number^Used In^
|Agnus (512K)|8361|252125-01|A1000 (NTSC), A2000A (NTSC)|
|Agnus (512K)|8361 R3||A1000(NTSC), A2000A(NTSC)|
|Agnus (512K)|8367|252362-01|A1000 (PAL), A2000A (PAL)|
|Agnus (512K)|8370|318070-01|A500 (NTSC), A2000 (NTSC), can be swapped for an 8372|
|Agnus (512K)|8371|318071-01|A500 (PAL), A2000 (PAL)|
|Agnus (1MB)|8372|318069-02|A500 (PAL), A2000 (PAL) Regular Type|
|Agnus (1MB)|8372A|318069-02|A500 (PAL), A2000 (NTSC), can be swapped for an 8370|
|Agnus (1MB)|8372A|318069-029|A500 (PAL), A2000 (PAL) (changed after some damage)|
|Agnus (2MB)|8372AB|318069-03|A3000 (PAL), A3000T (PAL)|
|Agnus (2MB)|8372B|318069-03|MegAChip (NTSC)|
|Agnus (2MB)|8375 R0|318069-18|A500+ (PAL), A600 (PAL)|
|Agnus (1MB)|8375 / 8375 R1|318069-16|A500 (PAL), A2000 (PAL)|
|Agnus (2MB)|8375 R2|318069-10|A500+ (PAL), A600 (PAL)|
|Agnus (2MB)|8375|318069-11|A500+(NTSC) and A600(NTSC)|
|Agnus (1MB)|8375|318069-17|A500 (NTSC), A2000 (NTSC) in rev 6.4|
|Agnus (2MB)|8375|318069-19|A3000 (NTSC), A3000T (NTSC)|
|Agnus (2MB)|8375|390544-01|A500+ (PAL), A600 (PAL)|
|Agnus (2MB)|8375|390544-02|A500+ (NTSC), A600 (NTSC)|