The SIDKick pico ("SKpico") is a drop-in replacement for the SID 6581/8580 sound chips in the Commodore 64 and 128 computers, and it can also emulate the SFX Sound Expander (FM). It has been designed as an inexpensive alternative to other replacements while not making compromises regarding quality. 

This is the fully integrated all-feature-variant SKpico2040DAC, only slightly larger than an original SID, including the RP2040 microcontroller, flash memory, DAC, and operational amplifier.

The emulation is based on an extended version of reSID 0.16 (with parts from reSID 1.0), and also includes a few additional features:

• dual 6581 and/or 8580 emulation based on reSID (optional: extension for digi-playing techniques), or 6581/8580 plus FM emulation
• 2nd-SID address at $d400, $d420, $d500, $d420 + $d500 simultaneously, $de00, $df00 (on C128 no $d500), or any address when an external chip select signal is used (e.g. on Ultimate 64 boards)
• paddle/mouse support
• built-in configuration menu (launch with "SYS 54301"/"SYS 54333", also from C128-mode)
• built-in PRG launcher ("SYS 54333,0" etc. or from the menu), PRGs can be integrated into the firmware or flashed from the configuration menu

THIS IS THE SKpico2040DAC PCB! (here and here are the two adapter board-variants with and without DAC which are easier to build and host a Raspberry Pi Pico or compatible clone)

You might want to have a look at the programming/usb-adapter PCB. 

Note: the RGB-LED on the top side is not part of the BOM/CPL and needs to be added by you!

Hint: for the PCB-option “Remove product No.” choose “Specify a location”. 

If PCBWay is asking for further production info, refer them to my original order. If you're asked for the layer order: L1 "F.Cu", L2 "In1.Cu", L3 "In2.Cu", L4 "B.Cu" (but again, simply leave blank and refer to my order)

Please see the SKpico GitHub-page for more information and firmware.

Note from PCBWay: The BOM only includes surface-mounted devices, if you need through-hole devices also, please get in touch with your sales representative.