SunRobotics LED DOT MATRIX DISPLAY MODULE MAX7219(White)

Max7219 is a serial input or an integrated output common cathode display drivers, 7 segment digital led which connects the microprocessor with 8 bit digital display, can also be connected bar graph display or 64 independent led. It include: S an on-chip b bcd encoder, a scanning circuit, some words to drive, but also the static ram a 8 x 8 to store each data. Only an external register is used to segment the current settings for each led. A simple four wire serial interface can be connected with all general microprocessor. Each data can address does not need to rewrite all display update.