MAX6960–MAX6963 4-Wire Serially Interfaced 8 x .
MAX6963 - 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers
MAX6960–MAX6963 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers GND 12 OSC 13 CS 14 DIN 15 DOUT 16 CLK 17 RST 18 COL1 19 COL2 20 COL3 21.