64 Bit Demux Single Chip (or 64 bit Mux)

Thread Starter

danadak

Joined Mar 10, 2018
4,057
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.

1576959330495.png


Regards, Dana.
 
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