News for hackers. Stuff that matters.

A comment on Programming ARM μC in Rust at four different levels of abstraction. Parent comment

Re:Programming ARM μC in Rust at four different levels of ab... by dbcurtis on Friday February 23, 2018 @03:06PM (#16449041)
Open collector if you have a bipolar technology. Modern microcontrollers are CMOS, so the pull-down transistor has a drain, not a collector. TTL is bipolar, so the transistor has a collector.
[ Parent | on HN ]

There are no comments on this comment yet.