I'm looking at a 4-digit LED display with a datasheet that has me puzzled:
http://www.lumex.com/pdf/LDQ-N513RI.pdf
As shown in the drawing, there are seven segment LEDs pins, and one for DP, then four common cathode pins....
So this part apparently has only 12 pins to drive all the LEDs. This leads to my question: Is it meant to be multiplexed, since there are way too few pins to drive each segment independently? Would I use a 4-way multiplexer and just run each digit at a 15% duty cycle?
Joe
http://www.lumex.com/pdf/LDQ-N513RI.pdf
As shown in the drawing, there are seven segment LEDs pins, and one for DP, then four common cathode pins....
So this part apparently has only 12 pins to drive all the LEDs. This leads to my question: Is it meant to be multiplexed, since there are way too few pins to drive each segment independently? Would I use a 4-way multiplexer and just run each digit at a 15% duty cycle?
Joe