SN7407N Hex buffer with open-collector outputs.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/17425845@N00">Windell Oskay</a> from Sunnyvale, CA, USA
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/oskay/6941003421/">SN7407N</a>