The HU32W471MRAS7WPEC is a high-performance 32-Mbit NOR flash memory device from Winbond Electronics, designed for embedded systems requiring fast code execution and reliable data storage. This SPI/QSPI-compatible flash memory operates at a supply voltage of 2.7V to 3.6V and supports a maximum read speed of 133 MHz, enabling rapid data access for real-time applications. It features a 32-Mbit density (4 MBytes) with x1/x4/x8/x16 data bus configurations, offering flexibility for various microcontroller interfaces. The device is housed in a compact 8-pin SOIC package, ensuring compatibility with space-constrained designs.

Key Features

The HU32W471MRAS7WPEC integrates advanced power management, including a 40-nanosecond page-mode access time and a 70-nanosecond read-while-write capability, ensuring seamless operation during firmware updates. It supports sector- and block-erasable architecture (4 Kbytes/sector) and includes built-in ECC (Error Correction Code) for data integrity. The device operates over an industrial temperature range (-40°C to +85°C) and guarantees a data retention of 20 years. It also offers low-power modes (e.g., 1 µA in standby) and a 10-year endurance for 10,000 erase/write cycles, making it suitable for write-intensive applications.

Applications

Primarily used in industrial automation and automotive systems, the HU32W471MRAS7WPEC is critical for storing firmware in microcontrollers, bootloaders, and embedded software in factory automation, robotics, and IoT gateways. It is widely employed in consumer electronics such as smart meters, set-top boxes, and gaming peripherals requiring fast code execution. Its robustness and endurance also suit medical devices, avionics, and industrial sensors needing reliable non-volatile memory in harsh environments.

Summary

The HU32W471MRAS7WPEC combines high-speed read performance, industrial-grade reliability, and flexible interface options, making it a key component for embedded systems demanding rapid code execution and long-term data retention. Its low power consumption, wide temperature tolerance, and error correction capabilities cater to applications in industrial, automotive, and IoT markets where uptime and durability are critical. This NOR flash memory is essential for engineers designing cost-effective, high-reliability storage solutions in resource-constrained environments.