I was reading the ATtiny13A datasheet and I can't figure out what's that symbol in the general digital I/O schematic. I've circled it the figure below.
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dodod
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That's a MOS pass gate, I believe. – DKNguyen Dec 03 '19 at 23:01
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Possible duplicate of Ambiguous symbol ... it's a transmission gate but I'm still flagging this as a duplicate question because the answer is the same. – Dec 03 '19 at 23:01
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a pass gate is a pmos and nmos with their drains and sources connected (s-s, d-d) and with their gates connected together through an inverter. Effectively forming a 3-terminal (shared source, shared drain, inverter input) device that acts like a digitally controlled bi-directional SPST switch. Pass gate logic is a whole thing you can read about. – vicatcu Dec 03 '19 at 23:20
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Thanks for pointing me to the answer! – dodod Dec 04 '19 at 07:26