A kind of integrated serial input/output common cathode display driver.
Connect microprocessor and seven period of digital LED display OF eight digit.
Can be connected to the bar graph display or 64 independent LED.
It includes a piece of type B BCD coder, multiple scanning circuit, period of word drive, but also an 8 * 8 static RAM used to store each data.
A convenient four wire serial interface can connection all general microprocessor.
Each data can be addressed in the update don't need to rewrite all the display.
MAX7219 also allows the user to each data selection code or code.
Only need 3 IO mouth can drive a lattice, Lattice shows flicker free, support cascade.
Color: Green surface
Operating voltage: 5V
LED color: Red
Screws hole aperture: 3mm
A single module can drive an 8 * 8 common cathode lattice
Product weight: 50g
Module size: 5 * 3.2 * 1.5cm / 2 * 1.3 * 0.6in (L * W * H)
Package weight: 100g
Package size: 10 * 7 * 1.5cm / 4 * 2.6 * 0.6in (L * W * H)
The module left side as an input port and the output port on the right.
To control a single module, just need to connect the input port to the CPU.
When cascading multiple modules, the input port of the first module connect to the CPU, the output port connect to the input port of the second one, and so on.