AVR-Chat

Paul Maddox wrote:
> how about the good old 74HC595? serial->parallel latch?
>
> http://www.semiconductors.philips.com/pip/74HC595.html

Paul,

 From the on-line datasheet for the 74HC595BQ (above) we find

	Output Drive Capability:
	+/- 7.8 mA on parallel output

That's OK for a low brightness display, but it doesn't have the drive 
capability if run within its specs.

Peter












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