MAX7219 8 Digit LED Display Driver IC SMD Package

MAX7219 8 Digit LED Display Driver IC SMD Package 

The MAX7219 is a compact and efficient 8-digit LED display driver IC designed to control 7-segment numeric LED displays, bar-graph LEDs, or up to 64 individual LEDs using a simple serial interface. It greatly reduces the number of I/O pins required from a microcontroller by handling all multiplexing, decoding, and current regulation internally.

The IC features an SPI-compatible serial interface, on-chip BCD decoding, digit scanning, and programmable brightness control. Available in a surface-mount (SMD) package, the MAX7219 is ideal for space-constrained display applications in embedded and industrial systems.

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Features

• Drives 8 digits of 7-segment LED displays or 64 individual LEDs
• SPI-compatible serial interface (DIN, CLK, LOAD)
• Built-in BCD code-B decoder
• Adjustable brightness with 16 intensity levels
• Internal multiplex scanning circuitry
• Individual digit control capability
• Low-power shutdown mode
• Display test mode
• Minimal external components required
• SMD package for compact PCB designs

Applications

• Numeric LED display systems
• Digital clocks, counters, and timers
• Panel meters and instrumentation
• Industrial control displays
• Consumer electronics indicators
• Embedded microcontroller projects
• LED bar-graph and matrix displays