D405: use Nexperia part sourced from Digi-Key direct The previously selected part was from a Digi-Key marketplace vendor, and they seem to not actually have that part, as the order has been in limbo for over a month - so I put in the time and effort to look around, and found a readily available equivalent part from Nexperia.

/* wrapper for the 4-pin tactile switch package */

module keyswitch_wrap (side1, side2);

input side1, side2;

switch_4pin pkg (.pin_1(side1),
		 .pin_2(side1),
		 .pin_3(side2),
		 .pin_4(side2)
	);

endmodule