The CD4067, and others (e.g. HEF4067) is pretty much a 16 channel version of the 4051. Alternatively you might be able to use 2 4051s with the MSB switching the INHIBIT on/off. Probably be way fiddlier this way though, needing extra logic. Haven't tried this yet, but have been looking at my CGS28 sequential switch and wondering.......
4067s are more expensive than 4051s, but curiously, quite cheap from RS in the UK if buying in tubes of (I think) 15.
cheers,
Dave
4067s are more expensive than 4051s, but curiously, quite cheap from RS in the UK if buying in tubes of (I think) 15.
cheers,
Dave
--- In cgs_synth@yahoogroups.com, "Andrew Scheidler" <xpandrew@...> wrote:
>
> Looking at the Sequential Switch info, am I correct in understanding how
> the 4051 chip operates:
>
> There are three inputs, together representing a 3 bit number. When
> voltage is applied at an input, that turns that "bit" on. So by way of
> those three inputs, you can address one of the 8 outputs of the chip.
>
> If you were to have three ON/OFF switches feeding those 3 inputs, you
> could use the switches to choose which step of the SS was active. (ie
> switch 1 & 3 on and 2 off would activate step #5... etc)
>
> Am I understanding this correctly?
>
> If so, there certainly must be a similar chip that has *4* inputs and
> can address 16 steps... can someone point me towards this, or at least
> give me a clue to where I should start looking?
>
>
> I am looking for a way to build a 16 step sequencer that is addressable
> per step via 4 on/off voltage inputs.
>
>
> Andrew
>