If you don’t know it, read below how to obtain free chips.
Many semiconductor companies offer freesample chips or other electronics products that they produce and send them to your home for free (without even post fees). This is a marketing technique. When someone orders some sample
chips from them and designs his circuit with it, then in the commercial
product they will use their chip again. Having this in mind they know
that at the end they are well-off. Bellow is a list of companies that
send free samples chips with online order: