Hi,
I m going to design a 4 digit 7 segment display module. I want to use about 10 to 15 such modules using 89V51RD2.
I want to implement it by multiplexing method making use of 4511. Each module could be selected individually and data is latched on them.
Here are some ideas i got...
1. Use a 4511 for each display. (4 no.s in each module)
2. Data to be written to BCD inputs using uC 8 bit port where display selection can be done by a decoding ic 138.
3. Or data can be written serially to a 16 bit serial in parallel out shift register IC on each module.
I just want to implement with minimal pin usage and wiring. Rest I can handle in code.
Check out the block diagram and please suggest the best solution. I hope there are many consistent members on this site who could have already done this.
I m going to design a 4 digit 7 segment display module. I want to use about 10 to 15 such modules using 89V51RD2.
I want to implement it by multiplexing method making use of 4511. Each module could be selected individually and data is latched on them.
Here are some ideas i got...
1. Use a 4511 for each display. (4 no.s in each module)
2. Data to be written to BCD inputs using uC 8 bit port where display selection can be done by a decoding ic 138.
3. Or data can be written serially to a 16 bit serial in parallel out shift register IC on each module.
I just want to implement with minimal pin usage and wiring. Rest I can handle in code.
Check out the block diagram and please suggest the best solution. I hope there are many consistent members on this site who could have already done this.