[sdiy] B566AC anyone? report on DK70 bender neck

[Veronica Merryfield]

I found this - no data sheet

The B566AC/C811 (W742C811 is mask type, B566AC811 is electrical erasable EPROM type) is a high- performance 4-bit microcontroller (µC) that built in 640-dot LCD driver. The device contains a 4-bit ALU, two 8-bit timers, two dividers in dual-clock operation, a 40 16 LCD driver, ten 4-bit I/O ports (including 2 output port for LED driving), multiple frequency output, and one channel DTMF generator. There are also eleven interrupt sources and 16-level stack buffer. The B566AC/C811 operates on very low current and has three power reduction modes, hold mode, stop mode and slow mode, which help to minimize power dissipation.


On 2010-11-08, at 10:59 AM, Bob Weigel wrote:

> Dang...it's in the package of an NE566 of course (8 pin dip)..what kind of knucklehead would name it that!  Someone thought that's what they were who ran the electronic store I got a bunch of stuff from years ago.  I thought I had 8 more of them than I have henceforth. Does anyone know what these really are?  I Am at this time designing a custom grip for the siel DK70 that will feature a much more ergonomic setup with a tilter instead of a pitch ribbon.  That way you can stay on the buttons with other fingers.  The thumb..however..will control an lfo with pressing in giving depth and tilting changing rate.  A switch for waveform type will also be provided and I may break it into ranges too...we'll see how it works out.  I'm going to try to get the prototype done soon here and then make enough of them to go on the units I've saved up here for that project. -Bob
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