MOS 6581
E528503
The MOS 6581 is the original SID (Sound Interface Device) chip, famous for providing the distinctive synthesizer-style audio and music capabilities of the Commodore 64 home computer.
All labels observed (7)
| Label | Occurrences |
|---|---|
| MOS 8580 | 3 |
| MOS Technology 6581 SID | 3 |
| MOS 6581 canonical | 2 |
| MOS Technology SID 6581 | 2 |
| MOS 6581 SID | 1 |
| MOS 6582 | 1 |
| MOS Technology 6581 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5513676 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MOS 6581 Context triple: [Commodore 64, soundChipModel, MOS 6581]
-
A.
Yamaha YM2610
The Yamaha YM2610 is a classic FM synthesis and ADPCM sound chip widely used in arcade and Neo Geo game systems to produce rich, multi-channel audio and sound effects.
-
B.
Yamaha YM2612
The Yamaha YM2612 is a six-channel FM synthesis sound chip widely known for defining the distinctive music and audio of many 16-bit Sega Genesis/Mega Drive games.
-
C.
Yamaha YM2151
The Yamaha YM2151 is an 8-channel FM synthesis sound chip widely used in 1980s arcade machines and computers to produce rich, multi-voice music and sound effects.
-
D.
Motorola 6800 microprocessor
The Motorola 6800 microprocessor is an 8-bit CPU introduced in the mid-1970s that became influential in early microcomputer and embedded system designs.
-
E.
Texas Instruments SN76489
The Texas Instruments SN76489 is a classic programmable sound generator chip widely used in early home computers and game consoles to produce simple three-voice music and sound effects.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MOS 6581 Target entity description: The MOS 6581 is the original SID (Sound Interface Device) chip, famous for providing the distinctive synthesizer-style audio and music capabilities of the Commodore 64 home computer.
-
A.
Yamaha YM2610
The Yamaha YM2610 is a classic FM synthesis and ADPCM sound chip widely used in arcade and Neo Geo game systems to produce rich, multi-channel audio and sound effects.
-
B.
Yamaha YM2612
The Yamaha YM2612 is a six-channel FM synthesis sound chip widely known for defining the distinctive music and audio of many 16-bit Sega Genesis/Mega Drive games.
-
C.
Yamaha YM2151
The Yamaha YM2151 is an 8-channel FM synthesis sound chip widely used in 1980s arcade machines and computers to produce rich, multi-voice music and sound effects.
-
D.
Motorola 6800 microprocessor
The Motorola 6800 microprocessor is an 8-bit CPU introduced in the mid-1970s that became influential in early microcomputer and embedded system designs.
-
E.
Texas Instruments SN76489
The Texas Instruments SN76489 is a classic programmable sound generator chip widely used in early home computers and game consoles to produce simple three-voice music and sound effects.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
SID chip
ⓘ
integrated circuit ⓘ sound chip ⓘ |
| addressSpaceSize | 29 registers ⓘ |
| application |
chiptune music
ⓘ
home computer audio ⓘ video game sound ⓘ |
| architecture | SID ⓘ |
| companyParent | Commodore International ⓘ |
| controlInterface | memory-mapped I/O ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| dataBusWidth | 8-bit ⓘ |
| designer | Bob Yannes ⓘ |
| discontinuationYear | late 1980s ⓘ |
| feature |
multi-mode analog filter
ⓘ
on-chip 4-bit DACs ⓘ oscillator sync ⓘ programmable ADSR envelope generators ⓘ programmable vibrato and tremolo via modulation ⓘ programmable volume control ⓘ ring modulation ⓘ two analog input pins ⓘ |
| filterType |
band-pass
ⓘ
high-pass ⓘ low-pass ⓘ notch ⓘ |
| introductionYear | 1982 ⓘ |
| logicSupplyVoltage | 5 V ⓘ |
| manufacturer |
Commodore Semiconductor Group
ⓘ
linked to:
Commodore International
MOS Technology ⓘ |
| notableFor |
distinctive analog-style sound
ⓘ
use in Commodore 64 music ⓘ |
| numberOfOscillators | 3 ⓘ |
| numberOfVoices | 3 ⓘ |
| packageType | 28-pin DIP ⓘ |
| processTechnology | NMOS ⓘ |
| successor |
MOS 8580
ⓘ
linked to:
MOS 6581
|
| supplyVoltage | 12 V ⓘ |
| usedIn |
Commodore 128
ⓘ
Commodore 64 ⓘ Commodore 64 Games System ⓘ
linked to:
Commodore 64
Commodore 64C early models ⓘ
linked to:
Commodore 64
Commodore MAX Machine ⓘ Commodore SX-64 ⓘ |
| waveformType |
noise
ⓘ
pulse ⓘ sawtooth ⓘ triangle ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: MOS 6581 Description of subject: The MOS 6581 is the original SID (Sound Interface Device) chip, famous for providing the distinctive synthesizer-style audio and music capabilities of the Commodore 64 home computer.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: MOS 6581
linked to: MOS 6581
linked to: MOS 6581
linked to: MOS 6581
linked to: MOS 6581
linked to: MOS 6581
linked to: MOS 6581
linked to: MOS 6581
linked to: MOS 6581