When the EN input of a D latch is HIGH, whatever is on the D input is transferred to the Q output. So, how exactly does this IC convert binary codes to decimal numbers? It does so by using a combination of logic gates and D flip-flops.įrom the HEX4511B datasheet, we can find the internal circuit of the 4511:įor each input bit (D0-D3), there is a D latch.
