8-digit serial LED 7-segment display, MAX7219, 9.5mm
The MAX7219 is a serial input/output common-cathode display driver that interfaces microprocessors to 7-segment numeric LED displays of up to 8 digits. Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM that stores each digit. Only