barbaro
Member level 3

Hi there,
I'm a beginner and wanted to build a circuit that can count 2-digits up/down using the follwing:
- 2 digit (3" 7-seg using 3 LED's per seg - in series connection) So, 21 LEDs all together in 1 7-Segment display
- using a 9V power supply (is this possible?)
Please let me know if how I can utilize or connect the following ic's;
- 74HC163 (Up/Down Resettable Sync counter)
- 74LS47 (Drive/Decoder)
What else do I need aside from transistors? and how can I connect them together?
Can someone direct me or show me a schematic and do I need a swith to make it work?
Any HELP is much appreciated
I'm a beginner and wanted to build a circuit that can count 2-digits up/down using the follwing:
- 2 digit (3" 7-seg using 3 LED's per seg - in series connection) So, 21 LEDs all together in 1 7-Segment display
- using a 9V power supply (is this possible?)
Please let me know if how I can utilize or connect the following ic's;
- 74HC163 (Up/Down Resettable Sync counter)
- 74LS47 (Drive/Decoder)
What else do I need aside from transistors? and how can I connect them together?
Can someone direct me or show me a schematic and do I need a swith to make it work?
Any HELP is much appreciated