Chip Tree

I'd like to have a page with information about sound chips, in a hierarchical arrangement, with aliases. The hierarchy is based on which chip inherited which, but more clearly, when writing the emulation code, which chip reuses which code.

• AY-3-8910 (PSG, aka AY8910)
  • Microchip AY8930
  • AY-3-8912 (Sound part identical, lacks GPIO port B)
  • AY-3-8913 (Sound part identical, lacks both GPIO ports)
  • YM2149 (SSG)
    • YM2203 (see Yamaha FM)
    • YM6630 (Sunsoft 5B)
    • YM3439 (SSGC)
    • YMZ284 (SSGL)
      • YMZ294 (SSGLP)
    • YMZ705 (SSGS), two SSGs and eight ADPCM channels
• SN76489 (DCSG)
  • SN76489A
  • SN76496
• Yamaha FM (YM*, OP*)
  • YM3526 (OPL)
    • YM3812 (OPL2)
      • YMF262 (OPL3)
        • YMF278 (OPL4)
      • YM2413 (OPLL)
        • VRC7
    • Y8950 (MSX-AUDIO)
  • YM2151 (OPM)
    • YM2164 (OPP)
  • YM2203 (OPN)
    • YM2608 (OPNA)
      • YM2612 (OPN2)
    • YM2610 (OPNB)
      • YM2610B
• NEC D7759 (uPD7759)
  • NEC D7759C
• Sharp LR35902 (DMG-CPU, GameBoy DMG)
• Hudson Soft HuC6280
• Ricoh 2A03 (RP2A03, NES APU)
• Namco C140
  • C219
• Ensoniq ES5506
  • ES5505