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Topic: 74595 VS HEF4794 (Read 1 time) previous topic - next topic


Jul 05, 2012, 01:25 pm Last Edit: Jul 05, 2012, 01:48 pm by kshitijnsitian Reason: 1
I want to ask that for scrolling text on led matrix should I use 74595 or HEF4794.
I have read on internet that HEF4794 can only be used to sink current and is better than 74595.Is it true???
Can I use HEF4794 to source current as well??


The HEF4794 has open drain outputs and can only sink current (abs max of 40mA per output, so fine for 20mA LEDs).   Google "<chipnumber> datasheet pdf" to find out about a chip.
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