i have 3 single 7 segment i need to connect its to pic16f877a

i didn't found decoder can connect 3 7-degment

to decrease number of pin connected to pic16f877a

 

Use one 7-segment decoder/driver chip. It only needs four pins to connect.
Then use three additional pins to multiplex the display.

Seven pins needed in total.

 

Another option, though one that requires more work on the software side than MrChips' suggestion, is to use a MAX7219 LED driver:

http://www.maximintegrated.com/en/products/power/display-power-control/MAX7219.html

Only three wires to drive up to 8 7-segment LED displays.

 

Using CD4511 bcd to decimal decoder, and three bjts to drive the 7-segments led, so you just need 4 pins for CD4511 and 3 pins for 3 bjt drivers.

 

thanks , i can`t get schematic use pic16f877a and MAX7219

 

i have 3 single 7 segment i need to connect its to pic16f877a

i didn't found decoder can connect 3 7-degment

to decrease number of pin connected to pic16f877a

here is 7 segment example code
use it
http://www.firmcodes.com/microcontrollers/pic/7-segment-interfacing-with-pic18f458/