EN35QXR256A-104HIP(2SC)

The EN35QXR256A-104HIP(2SC) from ESMT is a 256 Mbit serial SPI NOR flash memory device designed for industrial embedded storage and code execution. It implements a serial interface architecture with Single, Dual and Quad I/O options and is optimized for high-speed read performance and robust sector-level erase/program operations.

With a high-speed 104 MHz Fast Read mode (and support for 133 MHz Quad I/O at higher VCC ranges), uniform 4 Kbyte sectors, and industrial temperature rating, this device targets firmware, code shadowing, and non-volatile data storage in industrial and embedded applications that require reliable long-term data retention and field programmability.

Key Features

• Memory Capacity & Organization — 256 Mbit total density with organization supporting 32M × 8 addressing and 256-byte programmable pages, enabling straightforward mapping for firmware and file storage.
• Serial SPI Architecture — Supports Standard, Dual and Quad SPI modes with single-bit and quad-bit serial input/output commands for flexible throughput and pin usage.
• High-Speed Read Performance — 104 MHz clock rate for Single/Dual/Quad I/O Fast Read; supports up to 133 MHz Quad I/O Fast Read at higher supply range for demanding read throughput.
• Power and Supply — Single-supply operation across the device’s specified full voltage range; low active and power-down currents contribute to energy-efficient designs.
• Uniform Sector Architecture — 8,192 uniform 4-Kbyte sectors, plus larger 32-Kbyte and 64-Kbyte block granularity, allowing flexible erase strategies and efficient code updates.
• Program/Erase Performance — Typical page program time ~0.5 ms; sector erase ~40 ms; half-block and block erase times and full chip erase times are provided for predictable field updates.
• Data Reliability & Endurance — Designed for a minimum of 100K program/erase cycles per sector and typical data retention around 20 years for long-term field deployments.
• Security & Protection — Hardware and software write protection, lockable OTP sector(s), Read Unique ID and replay-protected monotonic counter (RPMC) features for security-sensitive applications.
• Package & Temperature — Available in an 8-pin SOP 200 mil package with surface-mount mounting and industrial operating temperature range of −40 °C to 85 °C.

Typical Applications

• Embedded Controllers — Firmware storage and execute-in-place (XIP) support for microcontroller-based systems that require reliable non-volatile code storage and fast read access.
• Industrial Automation — Field firmware updates, configuration storage, and secure parameter logging in industrial controllers and instrumentation operating across −40 °C to 85 °C.
• IoT & Edge Devices — Local code and data storage for connected sensors and gateways where low power, non-volatile retention and field reprogramming are required.
• Networking & Communications — Boot code and configuration storage for network appliances and edge networking equipment requiring fast read performance and sector-level updates.

Unique Advantages

• Flexible I/O Modes: Single/Dual/Quad SPI support lets you trade pin count for throughput depending on system requirements.
• Fast Read Throughput: 104 MHz Fast Read (and 133 MHz in Quad I/O at higher VCC) reduces boot and data load times in performance-sensitive applications.
• Granular Erase Management: Uniform 4-Kbyte sectors with larger block options simplify partial updates and reduce erase-time impact on application uptime.
• Field Security Features: Lockable OTP sector(s), Unique ID and RPMC provide building blocks for secure firmware storage and anti-rollback strategies.
• Industrial Reliability: 100K program/erase cycles and 20-year retention support long-lived, serviceable deployments in industrial environments.
• Compact, SMD Packaging: 8-pin SOP 200 mil surface-mount package enables compact board designs and easy integration into existing BOMs.

Why Choose EN35QXR256A-104HIP(2SC)?

The EN35QXR256A-104HIP(2SC) combines high-density non-volatile storage with flexible SPI interface modes and fast read performance, making it suitable for embedded and industrial designs that demand reliable firmware storage, field-upgradeability, and long-term data retention. Its uniform sector architecture and proven program/erase characteristics allow engineers to manage partial updates efficiently while maintaining data integrity over extended lifetimes.

Manufactured by ESMT and offered in a standard industrial-grade surface-mount package, this device is well suited for designers seeking a scalable, robust serial flash solution for embedded systems, industrial controls, IoT endpoints, and networking equipment.

Request a quote or submit an inquiry to evaluate EN35QXR256A-104HIP(2SC) for your next design and to obtain pricing and availability information.