8×8 LED Dot Matrix Display Module MAX7219 DIP IC

-A single module can drive an 8 * 8 common cathode lattice
-Module operating voltage: 5V
-Module size: 5 cm in length X width 3.2 cm x 1.5 cm
-Including four screws hole, aperture 3mm

it is connected to a microprocessor with 8-digit 7-segment digital LED display can also be connected to the bar graph display or 64 separate LED. On B BCD encoder including an on-chip, multi-channel scanning loop word drive, but also an 8 x 8 static RAM is used to store each data.