gnupic: Thread: Re: Next gen programmer]


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Subject: [Fwd: Re: Next gen programmer]
From: Tom Jennings ####@####.####
Date: 25 Jan 2004 08:51:11 -0000
Message-Id: <1075018871.7959.109.camel@fiche>

> I used this chip on the first one, on the 2nd, I thougtht I'd just go to
> a 18V power cube, but realized the flash voltage chip was easier,
> smaller and safer. It does all the brownout and 0-5-12-5V sequence junk
> really easily.

Just wanted to point out, Microchip specifies a very fast risetime for
the Vpp voltage, far faster than the Maxim flash voltage chip is capable
of. Hence it still required the shunt transistor. I called Microchip to
verify the risetime requirement.
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