• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Need BCD Switch information

Status
Not open for further replies.
I'm looking for a supplier of an inexpensive "complimentary" BCD switch.
I have been through the Omeron catalog, and find them very confusing not to mention pricey.
I'm looking for a switch that has 4 sections, push button pcb mount.
the output should be as follows:

1 2 4 8 C
* * * * * 0
* * * * 1
* * * * 2
* * * 3
* * * * 4
* * * 5
* * * 6
* * 7
* * * * 8
* * * 9

Thanks in advance!
 

crust

Member
Could you explain how to read the truth table in your diagram. In particular the number of asterisks on each line is confusing. Generally a single unit pushbutton bcd switch has 4 output pins and a common pin. The pins are joined to the common to indicate which of the 10 positions are selected on the switch.

Pos indicates the digit displayed on the switch, [3:0] indicates the connection of each respective bit to the common line.

Pos / [3:0]
0 / 0000
1 / 0001
2 / 0010
3 / 0011
4 / 0100
5 / 0101
6 / 0110
7 / 0111
8 / 1000
9 / 1001
 
Status
Not open for further replies.

Latest threads

EE World Online Articles

Loading
Top