Yamaha UDC-01
This page was last modified 14:27, 13 November 2017 by Grauw. Based on work by Mars2000you and Gdx and others.


The Yamaha UDC-01 is a data cartridge identical to the Sony HBI-55. It is used to store the data of your SFG musical creations when using most of the software released for this soundchip. It's especially conceived for the following Yamaha computers, as they have built-in the SFG module:

The data are saved on a 4kB SRAM (Static RAM) and a little battery preserves them when the computer is off.

Official launch price: ¥9,800 (Japan), ƒ 315 (Netherlands)


Yamaha UDC-01 cartridge
Yamaha UDC-01 box