Octal to 7-segment LED decoder

[Making]

how do i change from octal to 7-segment led decoder in multi-sim as i have no clue at all. I does not know how to start. HELP ME PLEASE !!!!!

[Chen_T]

Hi Making,

We can use 74LS47N or 7447N component to implement this 7-segment LED decoder. For example, the circuit I created below use the 74LS47N. On the left side, I add four switches as the digital input. According to the datasheet, we config LT/RBL/BI as HIGH. On the right side of the circuit, we usually place resistor bank (150 Ohm)to limit the current. As we can see in the figure now, the decoded number is 3.

Attached is the multisim circuit file and the datasheet for 74LS47N. Hope it helps!

Regards,

[Making]

Thanks for sharing , the information helps me a lot.