STMicroelectronics

M5482B7

M5482B7 Description

The M5482B7 from STMicroelectronics is a 7-segment LED display driver IC designed for driving 2-digit numeric displays with high efficiency and reliability. Packaged in a 20-pin DIP (Dual Inline Package) and supplied in tubes, this obsolete but robust component remains relevant for legacy systems. It operates within a wide voltage range of 4.75V to 13.2V with a low supply current of 7 mA, making it suitable for low-power applications. The serial interface simplifies integration, while its 7-segment configuration ensures compatibility with standard LED displays. Compliant with ROHS3 and REACH Unaffected standards, it meets environmental and regulatory requirements.

M5482B7 Features

• 2-Digit, 7-Segment Display Driver: Supports two-digit numeric output with a straightforward serial interface.
• Wide Voltage Range (4.75V–13.2V): Flexible power supply compatibility for diverse applications.
• Low Power Consumption (7 mA): Ideal for energy-sensitive designs.
• Through-Hole Mounting (20DIP): Ensures mechanical stability and ease of prototyping.
• Serial Interface: Reduces wiring complexity compared to parallel alternatives.
• RoHS3 & REACH Compliance: Environmentally friendly and meets global regulatory standards.
• Moisture Sensitivity Level (MSL 3): Suitable for controlled manufacturing environments.

M5482B7 Applications

The M5482B7 excels in industrial control panels, instrumentation, and legacy embedded systems requiring reliable numeric displays. Its low current draw makes it ideal for battery-powered devices, while the serial interface minimizes PCB footprint in space-constrained designs. Common use cases include:

• Digital panel meters for voltage/current monitoring.
• Process control systems displaying sensor readings.
• Retrofit solutions for aging equipment needing LED display upgrades.
• Educational electronics kits due to its simplicity and through-hole design.

Conclusion of M5482B7

Though marked as obsolete, the M5482B7 remains a dependable choice for low-power, 2-digit LED display applications. Its wide voltage range, serial interface, and compliance with modern environmental standards make it a versatile solution for legacy and niche projects. Engineers seeking a simple, robust display driver for industrial or educational purposes will find it a practical option despite newer alternatives. For systems requiring durability and ease of integration, the M5482B7 delivers consistent performance.