At 12:11 PM 2/6/01 +1100, you wrote:
>
>Thanks Bob, any sources for a cheap eraser? I
>can build one if the light source is not critical.
>And how long do they take to erase normally?

Bob may have a different answer, but for light ;-)
development use it is hard to beat the Datarase II,
available from Digikey etc. for about USD50 (with timer).

>Also, have you been purchasing 12C508 or 12C508A
>in 100+ quantities lately? Any things to watch there?
>wit
>Last question (I promise!) if using the internal
>4MHz osc on the OTP parts, does it need calibrating
>or what range freq are they in?

Check the data sheet for info on this, you have the
choice of using the calibration factor or not. There
are a lot of curves and so on describing how close the
internal oscillator is to 4MHz over temperature, from
unit-to-unit and all that rot.

Best regards,


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Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
Contributions invited->The AVR-gcc FAQ is at: http://www.bluecollarlinux.com
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