GitHub - libsidplayfp/SID_schematics: MOS 6581/8580 SID schematics reverse-engineered

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Name		Name	Last commit message	Last commit date
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addres_bus		addres_bus
envelope		envelope
filter		filter
pins		pins
schematics		schematics
vectorized_layouts		vectorized_layouts
waveform		waveform
Control_register.dia		Control_register.dia
OSC3_bit.dia		OSC3_bit.dia
README		README
Wolf_r3_envelope_fixed.png		Wolf_r3_envelope_fixed.png
Wolf_r3_waveform_fixed.png		Wolf_r3_waveform_fixed.png
external_filter.dia		external_filter.dia
r5_waveform.png		r5_waveform.png

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Reverse-engineering of the MOS 6581/8580 SID schematics by Leandro Nini and ttlworks,
based on silicon layouts photographed by Michael Huth and revectorized and annotated
by Tommi Lempinen.

https://github.com/libsidplayfp/SID_schematics/wiki


Original DIE pictures by Michael Huth:
https://retronn.de/imports/commodore_chips.html
(old page: http://mail.lipsia.de/~enigma/neu/6581.html)

Original layouts by Tommi Lempinen:
http://oms.wmhost.com/misc/


Discussion:
http://forum.6502.org/viewtopic.php?f=8&t=4150

Diagrams made with Dia:
https://wiki.gnome.org/Apps/Dia