Intel PC28F128J3F75: A Comprehensive Technical Overview of the 128-Megabit Flash Memory Device

The Intel PC28F128J3F75 represents a significant component within the landscape of non-volatile memory solutions, designed to meet the demanding requirements of embedded systems, networking equipment, and telecommunications infrastructure. As a 128-megabit (16-megabyte) StrataFlash® memory device, it combines high density, reliability, and performance, making it a cornerstone for applications where persistent data storage is critical.

Architecture and Core Technology

Fabricated on Intel's advanced multi-level cell (MLC) technology, the PC28F128J3F75 efficiently stores two bits of data per memory cell, effectively doubling the density compared to traditional single-level cell (SLC) designs without a proportional increase in die size. The device is organized as 16 Megabytes x 8 or 8 Megabytes x 16, providing flexibility for interfacing with both 8-bit and 16-bit microprocessors. This is managed through a multiplexed address and data bus, adhering to a common flash memory interface (CFI) standard for simplified system integration.

Performance and Key Features

A standout feature of this device is its sustained read performance of 75ns, ensuring rapid access times essential for real-time processing and execution-in-place (XIP) operations. The device operates on a single 3.0V VCC supply voltage (with a 12V VPP for accelerated programming), making it suitable for power-sensitive applications. Its internal architecture is divided into 128 uniform 128-Kbyte blocks, each of which is individually erasable. This granular block structure is fundamental for modern wear leveling algorithms and efficient file system management, extending the device's operational lifespan.

The PC28F128J3F75 incorporates several advanced features to enhance robustness and data integrity. It includes an Integrated Program/Erase Controller that automates complex algorithms, offloading these tasks from the host processor and simplifying software design. Furthermore, it offers advanced software data protection mechanisms and hardware write protection pins to prevent accidental corruption of critical code or data.

Applications and Reliability

This flash memory device is engineered for high-reliability applications. It is commonly deployed in:

Networking hardware (routers, switches)

Telecommunications base stations

Industrial control and automation systems

Automotive telematics and infotainment

Data storage subsystems

Its extended temperature range support and robust endurance ratings (typically 100,000 program/erase cycles per block) ensure reliable operation in harsh environmental conditions. The device also includes status register bits to monitor operation completion and detect errors, providing a secure and manageable memory solution.

ICGOOODFIND Summary

The Intel PC28F128J3F75 is a high-density, reliable 128Mb flash memory solution that masterfully balances performance, power efficiency, and architectural flexibility. Its MLC technology, fast access times, and sophisticated block management features make it an ideal choice for a wide array of demanding embedded applications where non-volatile storage is paramount.

Keywords:

1. Non-Volatile Memory

2. Multi-Level Cell (MLC)

3. 128-Megabit

4. Block Erase Architecture

5. Embedded Systems