Attiny2313 availability is limited, only Arrow and All American at the
moment. Should we go to a more common 28 pin part? Cost wouldn't be much
more, maybe 60 cents or so.
John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.comThe Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com > -----Original Message-----
> From: ComputerVoltageSources@yahoogroups.com
> [mailto:ComputerVoltageSources@yahoogroups.com] On Behalf Of djbrow54
>
> Fine. A couple of notes. The Samsung controller is compatible with
> the Hitachi controller so this means all of these parallel LCD
> Assemblies will be compatible.
>
> I would propose an ATTINY2313 for the LCD support PCB. Note that this
> PCB would contain only the following parts:
>
> ATTINY2313 20 pin DIP
> 14 pin header to connect to LCD Assembly
> 3 or 4 pin header to connect to CVS PC
> (Tx, Reset, Ground, and possibly +5)
> Input power connector for the LCD Assembly backlight
> Current limit resistor for the LCD Assembly backlight
> 8 MHz crystal and two 22 pF capacitors
> Optional 6 pin header to program the ATTINY2313 in-circuit
> Optional contrast potentiometer (my experience is to run the LCD
> at full contrast with no potentiometer)
>