74HC154 decodes binary encoded (BCD) data and transfers it to the output. Convert 4 lines of data to 16 lines and works as demultiplexer. 74HC154 works with 5V and you can get maximum 16mA current from each channel.
Prev
1 of 2
Next
It has 24 pins as shown in the connection diagram. A-B-C-D is used for data input in BCD format, while G1 and G2 are stobe inputs.
G1 and G2 inputs must be Logic 0 for 0-15 output ports to be active as it appears in the function table.
As seen in the test circuit below, the 10th output (Pin 11) is activated as logic 0 according to the data applied to the A-B-C-D inputs. The other output pins are logic 1. You should be careful when designing the driver circuit connected to the output port of the 74HC154 ic.
Other Articles
