I'm looking for a cheap part i can use as a digital logic DPST switch.
Basically space is at a premium and i need to add a programming+uart pogo-based header to the project.
I want to use the same two physical connections for USART and for the two JTAG programming lines.
(micro is nRF52832)
From what i can see, these could 'in theory' be shorted, as the USART will go tristate at reset and programming/debug modes are only activated at reset. However this might be a bit risky. Who knows what undocumented commands the programming pins might respond to.
So i think i'll add a switch system to stop uart comms feeding into the programming pins during operation.
Does anyone know of a super cheap, like <10c, part that is basically a digital DPST switch?
(Note one of the programming lines is bidirectional)
Thanks