[sdiy] B566AC anyone? report on DK70 bender neck
Bob Weigel
sounddoctorin at imt.net
Mon Nov 8 20:16:48 CET 2010
On 11/8/2010 12:10 PM, Veronica Merryfield wrote:
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> 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.
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I think it must be another random association Veronica. Again this is
an 8 pin package so..it can't have 10 i/o ports etc. Sounds like
that thing is probably a quad pack
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