SID (microprocessor)

The SID , or MOS 6581 , is the name of the chip managing all the its Commodore 64 and Commodore 128.

This chip is true a Synthétiseur, exceeding all technologically that was done at the time. It will contribute largely to the business success of Commodore 64. It was conceived and manufactured by the subsidiary company of Commodore International, MOS Technology

There remains used in the Années 2000 in particular by the Elektron SidStation, an electronic musical instrument based on the SID. Certain musicians or groups such as Machinae Supremacy or KMFDM use it in their compositions.

Its characteristics are:

  • 3 TON OSCILLATORS
Arranges: 0-4 Khz

  • 4 WAVEFORMS PER OSCILLATOR

Triangle, Sawtooth, Variable Pulsates, Noise
  • 3 AMPLITUDE MODULATORS
Range: 48 dB
  • 3 ENVELOPE GENERATORS
Exponential response

Attack Misses: 2 ms - 8 S Decay Misses: 6 ms - 24 S Sustain Level: 0 - peak volume Release Misses: 6 ms - 24 S

  • OSCILLATOR SYNCHRONIZATION PROGRAMMABLE BOXING RING MODULATION FILTER

Cutoff arranges: 30 Hz - 12 Khz

12 dB/octave Rolloff Low not, Bandpass, High not, Notch outputs Variable Resonance

  • MASTER VOLUME CONTROL

  • 2 A/D POT AUDIO INTERFACES RANDOM NUMBER/MODULATION GENERATOR EXTERNAL INPUT

See too

External bonds

  • Midibox SID: one synthé " C it yourself" based on the SID
  • Plopbox: listen directly since your PC of the SID

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