On Mon, Nov 1, 2010 at 1:28 AM, Chuck Guzis <cclist at sydex.com> wrote:
On 1 Nov 2010 at 0:40, Dan Roganti wrote:
but that's going over 16pins :)
No--the 74S1051 is a 12-diode 16-pin PDIP. If you don't want to use
the 154, just use two 74138s--it has both positive and negative
enables.
That part is wired internally as a Diode Terminator, not much left over for
a matrix, little flexibility there, it'll take more than 4 chips - and since
the diodes are in a DIP, that counts as a chip ;)
Didn't they make a straight Diode Pack w/o the common anode or cathode
--which you commonly see - for wiring into a matrix for situations like this
?