[sdiy] 4514 w/4516

[john mahoney]

----- Original Message ----- 
From: "Tom Arnold" <xyzzy at sysabend.org>

> So, I've managed to think myself into a circle on something now.
>
> I figured expanding this 16step sequencer board to 32 steps was going to
be
> as easy as chaining a second 4516 off the first 4516, but then my brain
> finally kicked in yesterday and I realised that by chaining them they'll
> count up to 8 bits as a pair unstead of one counting up 4 bits and then
the
> second counting up 4 bits.
>
> Is this correct thinking?  I have some ideas how to do this anyway but
> wanted to verify that I'm correct in my new assumptions first.

Yeah, chaining a pair of 4-bit adders yields an 8-bit counter, whereas you
want a 5-bit count.

You need a way to flip-flop from one to the other, if you get my drift.
--
john