Does anyone knows if there is any simply solution, or ICs, to do the following:
8 momentary switches to control 8 latching outs, only one at the time active.
So, 8 flip flops (seems SR) triggered by momentary push switch to control each own LED at exit, but in the way that one is immediately active after power on (preprogrammed or even better if is possible to remember state before powered off), and when another push switch is pressed to activate another own LED and previous LED to go off. If currently activated line's switch is pressed again, the status should stay unchanged since one line always must be ON.
The IC EDE2208 looks nice as 8 momentary to toggle switches but it doesn't alternate as inputs/outputs are separated from each other. Also it can't start with one out "high", although it can be done with some tricks.
8 momentary switches to control 8 latching outs, only one at the time active.
So, 8 flip flops (seems SR) triggered by momentary push switch to control each own LED at exit, but in the way that one is immediately active after power on (preprogrammed or even better if is possible to remember state before powered off), and when another push switch is pressed to activate another own LED and previous LED to go off. If currently activated line's switch is pressed again, the status should stay unchanged since one line always must be ON.
The IC EDE2208 looks nice as 8 momentary to toggle switches but it doesn't alternate as inputs/outputs are separated from each other. Also it can't start with one out "high", although it can be done with some tricks.