On Thu, 31 Mar 2011 11:36:41 -0500, flipper wrote:
On Thu, 31 Mar 2011 08:51:45 -0500, John Fields
wrote:
On Wed, 30 Mar 2011 17:05:31 -0500, flipper wrote:
On Wed, 30 Mar 2011 15:00:58 -0700, Jim Thompson
wrote:
snip
One can amuse one's self... how is the ESD configured on the Discharge
pin ?:-)
Interesting question but the datasheets I've got don't mention a thing
about ESD protection so I don't know.
---
If it's like most other ESD protection it's two diodes in series, with
the anode-cathode junction connected to the discharge pin, the free
cathode of one connected to Vcc, and the free anode of the other
connected to GND.
Sure, I know "if it's like..."
I just wasn't going to declare something a 'fact' that isn't
specified.
Easy enough to check with the diode function of a multimeter.
This is like a 'second problem', though, because even if the diodes
aren't there it is still only rated to Vcc.
As a side note, the CMOS LMC555 datasheet is 'Ian ambiguity proof' in
that it explicitly states "Absolute Maximum" for output voltages Vo
and Vdis at 15V, in addition to the "Supply Voltage."
So Ian is ignorant because he can't read ?:-)
...Jim Thompson
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