Intel RC28F640J3C120: A Deep Dive into 3V 64-Mbit Advanced+ Boot Block Flash Memory

In the realm of embedded systems and legacy computing architectures, reliable non-volatile storage remains a cornerstone. The Intel RC28F640J3C120 stands as a quintessential example of this technology, a 3V 64-Mbit Advanced+ Boot Block Flash Memory device engineered for critical applications requiring robust performance and architectural flexibility.

This memory IC is built on Intel's renowned Advanced+ Boot Block architecture, a feature that fundamentally distinguishes it from conventional flash memories. This architecture physically partitions the memory array into multiple sections, including individual boot blocks, parameter blocks, and main blocks. The primary boot blocks can be configured to reside at the top or bottom of the memory map, providing system designers with unparalleled flexibility to accommodate different microprocessor boot sequences. This is crucial for ensuring reliable system initialization and recovery, even in the event of corruption in other memory sectors.

Operating at a low 3V supply voltage, the RC28F640J3C120 is designed for power-sensitive applications. It offers a high level of integration, packing 64 Megabits (8 Megabytes) of storage into a single package. The device supports a versatile asynchronous page-mode read capability, allowing for rapid burst reads from within a selected page, significantly enhancing effective read throughput compared to standard asynchronous memories. For write and erase operations, it features a command-driven interface that simplifies the programming process. By writing specific command sequences into the chip's register, the system can invoke automated algorithms for byte programming and block erasure, offloading this complex task from the main processor.

Durability and data retention are paramount. This Intel flash memory component is rated for a minimum of 100,000 write/erase cycles per sector, ensuring longevity in systems that require frequent firmware updates. Furthermore, it guarantees data retention for up to 20 years, making it a trustworthy solution for long-deployment-life products.

The "120" in its part number signifies a 120ns access time, indicating its performance grade suitable for interfacing with a wide range of mid-frequency microprocessors and microcontrollers without wait states. Its compatibility with common bus interfaces makes it a versatile choice for upgrading or designing systems in telecommunications, industrial control, automotive, and legacy computing platforms.

ICGOOODFIND: The Intel RC28F640J3C120 is a highly specialized and robust flash memory solution. Its defining Advanced+ Boot Block architecture provides critical design flexibility for system booting, while its balanced performance, endurance, and low-voltage operation make it a reliable choice for demanding embedded applications that have stood the test of time.

Keywords:

1. Non-volatile Memory

2. Boot Block Architecture

3. Embedded Systems

4. Command Interface

5. Data Retention