MAX7219CNG datasheet, pinout & Arduino

MAX7219CNG Pinout Equivalent

1：Overview of the MAX7219CNG:

MAX7219CNG is a serial input/output common cathode display driver IC introduced by Maxim Integrated, available in a DIP-24 package. It can directly drive an 8-digit 7-segment numeric LED display or up to 64 individual LEDs or bar graph displays. The chip communicates with microcontrollers or other control circuits via a serial interface, requiring just three lines (serial data input, serial clock input, and chip select signal) for data transmission and control, significantly simplifying circuit design.

2：MAX7219CNG  Important pin function definition:

3：Alternative model recommendation

MAX7221：From the same manufacturer as MAX7219CNG and with extremely similar functional characteristics. It can also drive 8-digit 7-segment digital tubes or 64 independent LEDs. It uses serial interface communication, which can reduce the number of pins connected to the microcontroller and simplify circuit design.

TM1637：It can drive digital tube display and realize the display function of numbers and characters. It also connects with the microcontroller in a serial communication mode and can replace MAX7219CNG in some simple digital tube display application scenarios.

HT16K33：It is also a chip used to drive LED displays. It supports the I²C communication protocol. Like MAX7219CNG which uses serial communication, it can communicate with microcontrollers through fewer pins. It can drive multiple-digit digital tubes or LED matrices. In terms of digital tube display applications, it overlaps with MAX7219CNG.

TM1640：Used for driving LED displays, adopting serial communication mode. It can realize the display control of multiple digital tubes or LEDs and can be used as an alternative to MAX7219CNG in some digital tube display applications.