hi I have three questions to ask, if you can answer me.
1) do you know if there are UP / down counters with the clock working both on the rising edge and also on the falling edge?
2) I have to make two ICs belonging to two different families, the CD40193 and the 74HC154, work together. Which solutions can be adopted?
the only solutions that came to my mind are the following.
- simply make the CD40193 work at the same power supply voltage as the 74HC154.
- use a dual power supply with central socket (-6. 0. +6) then power cd40193 with -6. 0. +6. then feed 74HC154 with -6. 0
then interpose the 74HC4050 chip between the two chips.
3) it seems that there are many integrated remote control encoder / decoder Rf / Ir but I only know two. mc145026 / 27 (discontinued) and HT12e / d.
I can't figure out how long it takes to change the status of the outputs.
thank you
1) do you know if there are UP / down counters with the clock working both on the rising edge and also on the falling edge?
2) I have to make two ICs belonging to two different families, the CD40193 and the 74HC154, work together. Which solutions can be adopted?
the only solutions that came to my mind are the following.
- simply make the CD40193 work at the same power supply voltage as the 74HC154.
- use a dual power supply with central socket (-6. 0. +6) then power cd40193 with -6. 0. +6. then feed 74HC154 with -6. 0
then interpose the 74HC4050 chip between the two chips.
3) it seems that there are many integrated remote control encoder / decoder Rf / Ir but I only know two. mc145026 / 27 (discontinued) and HT12e / d.
I can't figure out how long it takes to change the status of the outputs.
thank you