The MAX7219 is a compact, serial input/output common-cathode display driver that allows you to easily control 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8×8 static RAM that stores each digit. Only one external resistor is required to set the segment current for all LEDs.

A convenient 4-wire serial interface connects to all common microcontrollers. Individual digits may be addressed and updated without rewriting the entire display. The MAX7219 also allows the user to select code-B decoding or no-decode for each digit.

Key Feature:

1. 10MHz Serial Interface
2. Individual LED Segment Control
3. Decode/No-Decode Digit Selection
4. 150µA Low-Power Shutdown (Data Retained)
5. Digital and Analog Brightness Control
6. Display Blanked on Power-Up
7. Drive Common-Cathode LED Display
8. SPI, QSPI, MICROWIRE Interface
9. 24-Pin DIP

Applications:

1. Bar Graph Displays
2. Industrial Controllers
3. LED Matrix Displays
4. Panel Meters

Product Attachments

• Datasheet
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