Max7219 LED Display Driver IC

Pin Configuration:
1DIN – Serial Data Input Pin
2DIG0
3DIG4
4Ground
5DIG6
6DIG2
7DIG3
8DIG7
9Ground
10DIG5
11DIG1
12LOAD(CS)
13CLK
14Segment A
15Segment F
16Segment B
17Segment G
18ISET
19Vcc
20Segment C
21Segment E
22Segment DP
23Segment D
24Dout