EN35SXR256A-104WIP(2PC)

The EN35SXR256A-104WIP(2PC) is a 256 M-bit serial SPI NOR Flash memory device optimized for industrial embedded storage and code execution applications. Built on a serial interface architecture, it supports Standard, Dual and Quad SPI modes and offers uniform 4KB sectors for flexible erase and programming.

Designed for high-performance read and reliable firmware/data storage, the device targets industrial and embedded systems that require non-volatile program storage with fast read access, hardware/software write protection and extended endurance.

Key Features

• Memory & Organization  256 M-bit capacity with a 32M × 8 organization and 256-byte programmable page size for efficient page programming and data storage.
• Serial SPI Interface  Serial Interface Architecture compatible with Standard, Dual and Quad SPI. Supports Single/Dual/Quad I/O Fast Read modes with up to 104 MHz clock rate for fast data transfer.
• Uniform Sector Architecture  8,192 uniform 4-Kbyte sectors (also organized as 1,024 × 32-Kbyte and 512 × 64-Kbyte blocks) enabling individual sector or block erase and targeted updates.
• Program & Erase Performance  Typical page program time ~0.5 ms, sector erase ~40 ms, half-block erase ~200 ms, block erase ~300 ms and chip erase ~120 s for predictable maintenance windows.
• Power & Performance  Fast read at up to 104 MHz, typical active current around 12 mA and typical power-down current around 1 µA for low-power standby.
• Write Protection & Security  Software and hardware write protection supported; WP# pin can enable/disable protection. Includes a lockable 3 × 512-byte OTP security sector and Replay-Protected Monotonic Counter (RPMC).
• Endurance & Retention  Minimum 100K program/erase cycles per sector and typical data retention of 20 years for long-term field reliability.
• Voltage & Temperature  Single-supply operation within the specified serial flash ranges; industrial operating temperature range −40 °C to 85 °C.
• Package & Mounting  Available in an 8-pin WSON 5×6 mm surface-mount package suitable for compact, space-constrained designs. RoHS compliant.

Typical Applications

• Embedded Controllers  Non-volatile storage for boot code, firmware images and code patches where sector-level erase and program flexibility matter.
• Industrial Control & Instrumentation  Reliable code and data storage across −40 °C to 85 °C for PLCs, HMIs and factory automation systems.
• Network & Communications Modules  Storage of firmware, configuration and secure identifiers in modules that require fast SPI read performance and hardware write protection.
• Consumer & IoT Devices  Compact WSON packaging and low-power standby make the device suitable for space-constrained products that need persistent program or data storage.

Unique Advantages

• Flexible SPI Modes: Standard, Dual and Quad I/O support delivers scalable throughput to match application bandwidth needs without changing memory family.
• Granular Erase Control: Uniform 4-Kbyte sectors and multiple block sizes allow targeted updates and reduce erase overhead during firmware patches.
• Robust Data Protection: Combined software and hardware write-protect features plus an OTP security sector and RPMC enhance protection for critical code and keys.
• Field-Proven Endurance: 100K program/erase cycle endurance and 20-year data retention support long lifecycle deployments in industrial environments.
• Compact, Rugged Packaging: 8-pin WSON 5×6 mm surface-mount package provides a small footprint and industrial temperature range for space-constrained, robust designs.
• Low Power Standby: Typical power-down current (~1 µA) reduces standby power consumption for battery-assisted or always-on systems.

Why Choose EN35SXR256A-104WIP(2PC)?

The EN35SXR256A-104WIP(2PC) combines a proven 256 M-bit serial NOR architecture with flexible SPI modes, sector-level erase granularity and hardware/software protection mechanisms to meet the needs of industrial and embedded applications. Its performance characteristics—fast SPI read, modest active current and low-power standby—balance responsiveness with energy efficiency for firmware and code storage.

This device is ideal for designers requiring reliable non-volatile storage with long endurance, field update capability and a compact WSON package. Its security and protection features, together with industrial temperature operation, make it suited to long-lived, mission-critical embedded systems.

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