Analog Devices Inc./Maxim Integrated

MAX7219ENG  

Display Drivers ICs

MAX7219ENG Description

The MAX7219ENG from Analog Devices Inc./Maxim Integrated is an 8-digit, 7-segment + decimal point (DP) LED display driver IC designed for through-hole mounting (24DIP package). It operates within a 4V to 5.5V supply range with a 330 mA current supply, making it suitable for driving high-brightness LED displays efficiently. This obsolete but robust IC is classified under EAR99 and REACH Unaffected, ensuring compliance with export and environmental regulations. Its Moisture Sensitivity Level (MSL) 1 (Unlimited) rating indicates high reliability in varied storage conditions.

MAX7219ENG Features

• 8-Digit, 7-Segment + DP Control: Supports multiplexed displays with individual segment control.
• Low Power Consumption: Optimized for 330 mA supply current, reducing heat dissipation.
• Wide Voltage Range (4V–5.5V): Compatible with 5V systems and tolerant of minor fluctuations.
• SPI-Compatible Serial Interface: Simplifies microcontroller interfacing with minimal I/O pins.
• Built-in Decoder and Brightness Control: Eliminates external components for BCD decoding and offers 16-step brightness adjustment.
• Through-Hole Design (24DIP): Facilitates prototyping and legacy system integration.

MAX7219ENG Applications

• Industrial Displays: Ideal for process control panels, instrumentation, and HMI systems due to high brightness and multiplexing efficiency.
• Consumer Electronics: Used in digital clocks, scoreboards, and appliance displays.
• Embedded Systems: Simplifies LED driving in microcontroller-based projects (e.g., Arduino, Raspberry Pi).
• Retail & Signage: Powers price displays, inventory counters, and scrolling message boards.

Conclusion of MAX7219ENG

The MAX7219ENG remains a versatile, cost-effective solution for driving 7-segment LED displays despite its obsolete status. Its integrated decoder, brightness control, and SPI interface reduce design complexity, while its wide voltage range ensures compatibility with common 5V logic. While newer alternatives exist, the MAX7219ENG's proven reliability and ease of use make it a preferred choice for legacy systems, educational projects, and industrial applications requiring robust LED control.

MAX7219ENG Documents

Download datasheets and manufacturer documentation for MAX7219ENG

Datasheets :

MAX7219,21      

Part Numbering Guide :

Part Numbering System      

Application Notes :

Data Multiplexer Adds Cursor To MAX7219 or MAX7221 LED 7 Segment Display Driver      

PCN Obsolescence/ EOL :

Multiple Devices 01/Nov/2012      

HTML Datasheet :

MAX7219,21      

Environmental Information :

Maxim Integrated RoHS Cert       Maxim Integrated REACH