64 Bit Demux Single Chip (or 64 bit Mux)

Thread Starter


Joined Mar 10, 2018
Occasionally I see on AAC need for large muxes, de-muxes, and folks discuss using 8 bit parts
and logic to control them.

Here is a single chip design, shown as demux. DeMux addressing done by writing to an
internal control register. Note uses most of the pins, see right hand window resources
used/left. PSOC 5LP family of parts.

Could have done this code-less by bringing address out to pins, but mux would have
to be < 64 bits because of package pin count limitation.

Easily could have done this as an I2C or SPI or UART or USB interface for addressing if user can code.


Regards, Dana.