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MAX7219 MCU Module

MAX7219 MCU Module

  • Model: MAX7219-1
  • Email: service@wayengineer.com

Availability: 190 In stock


MAX7219 is a integrated serial input / output common cathode display driver, it is connected with the microprocessor and the 8 digits of the 7 segment digital LED display, also connect the bar graph display or 64 independent LED. It includes one on-chip B BCD encoder, a scanning circuit, word drive, and including 8*8 static RAM to used to store each data. There is only one external register is used to set the LED section current.
A convenient four wire serial interface can be connected with all the universal microprocessor. Each data can be addressed in the update does not need to rewrite all display.MAX7219 also allows the user to each of the data code or code.
The device contains a 150 μ A low power off mode, analog and digital brightness control, a scan register allows the user to display 1-8 data bits, and one that all LED chemiluminescence detection model
Only 3 pieces IO to drive 1 lattice! Dot matrix display without blinking! Support cascading

Module parameters:
1 One module can be driven by a common cathode array of 8*8
2 Module working voltage: 5V
3 Module size: 5 cm * 3.2 cm *1.5 cm
4 Have 4 fixing screw holes, aperture 3mm
5 Module has input and output interface, support for multiple module cascade

Wiring instructions:
1 Module’s left side is input port, right side is output port.
2 Control a module, only need input port connect to CPU
3 Over 3 piece of modules cascaded, first module is connected to the input CPU, output port is connected with the input end of second modules, second module connected to the output end of the input end of third modules etc
With 51 single chip as example:
The VCC → 5V
The DIN → P20
The CS → P21
The CLK → P22

Shipping list:
1) 1* MAX7219 Module
2) 5*
DuPont lines(20CM)

Please download data here: