Intel RC28F320J3D75: A 32Mb NOR Flash Memory for Embedded Systems

In the realm of embedded systems, where reliability, speed, and non-volatility are paramount, NOR Flash memory remains a foundational technology. The Intel RC28F320J3D75 stands as a prominent example, a 32-megabit (4MB) memory solution engineered to meet the rigorous demands of applications ranging from automotive systems and industrial controllers to networking equipment and telecommunications infrastructure.

A key strength of this device lies in its advanced architecture, which is organized as 32 Megabits, configurable in either a x16 or x8 data bus width. This flexibility allows designers to optimize their system for either higher throughput or reduced pin count. Built on a highly reliable 0.13μm mirrorBit® process technology, it delivers a robust combination of performance and endurance.

Performance is a critical differentiator. The RC28F320J3D75 offers fast read access times, enabling efficient execution of code directly from flash (XIP - eXecute In Place), which is essential for system boot-up and real-time operation. Its write and erase capabilities are also significant, featuring a sector erase architecture that allows specific memory blocks to be erased and reprogrammed without affecting others. This minimizes overhead and enhances the efficiency of firmware update processes.

Superior reliability and endurance are engineered into this component. It supports a minimum of 100,000 write/erase cycles per sector, ensuring data integrity over the long operational life expected in embedded environments. Furthermore, it offers over 20 years of data retention, guaranteeing that critical code and parameters are preserved even without power. These features make it exceptionally suitable for mission-critical systems where failure is not an option.

The device also incorporates several features designed to simplify system design and enhance security. It supports a Common Flash Interface (CFI), which allows the host system to automatically query the flash device to discover its configuration, simplifying software design. Hardware and software data protection mechanisms safeguard memory contents from accidental corruption.

Operating from a single 3.3V power supply and available in industry-standard packages like TSOP and BGA, the RC28F320J3D75 ensures both easy integration and a clear migration path for existing designs.

ICGOODFIND: The Intel RC28F320J3D75 is a high-performance, highly reliable 32Mb NOR Flash memory solution. Its fast read performance, exceptional endurance, and advanced sector protection features make it an ideal choice for developers building robust, next-generation embedded systems that demand unwavering data integrity and long-term reliability.

Keywords: NOR Flash Memory, Embedded Systems, Execute In Place (XIP), Data Retention, Sector Erase Architecture.