EN25SY256A-133FIP(2PC)

The EN25SY256A-133FIP(2PC) is a 256 Mbit serial NOR flash memory from ESMT designed for embedded code and data storage. It implements a SPI serial interface with single, dual and quad I/O modes and supports high-speed Quad I/O Fast Read at up to 133 MHz, making it suitable for systems that require fast code or data access.

With uniform 4 Kbyte sectors, hardware and software write protection, and an industrial operating temperature range, this device targets embedded and industrial designs that require reliable non-volatile storage with flexible erase/program control and low standby power.

Key Features

• Memory Capacity & Organization — 256 Mbit (32,768 KByte) organized as 131,072 pages with 256 bytes per programmable page; uniform 4 Kbyte sectors for flexible erase granularity.
• High-speed SPI Interface — SPI-compatible serial interface supporting Mode 0 and Mode 3, with Standard, Dual and Quad SPI; Quad I/O Fast Read up to 133 MHz and Fast Read up to 104 MHz for single/dual/quad I/O.
• Program and Erase Performance — Typical page program time 0.5 ms; sector erase typical 40 ms; half-block and block erase and chip erase timings specified for system planning.
• Power and Supply — Single power supply operation with a full voltage range of 1.65–1.95 V (1.8V class); low active and power-down currents (7 mA typical active, 1 μA typical power down).
• Reliability — Minimum 100K program/erase cycles per sector and 20-year data retention typical; lockable 3 × 512 byte OTP security sector for protected storage.
• Write Protection & Security — Software and hardware write protection options allow protection of all or portions of the memory; volatile status register bits and protection locking enhance system safety.
• Packages & Temperature Range — Available in a 16-pin SOP 300 mil package option; industrial operating temperature range of −40 °C to 85 °C; RoHS compliant.

Typical Applications

• Embedded firmware storage — Store boot code and application firmware with sector-level erase and program flexibility to support in-system updates and code patching.
• Code patching and modular updates — Protect critical code regions while permitting targeted updates to individual sectors or blocks.
• Non-volatile data storage — Retain configuration, calibration, and system logs with long data retention and high program/erase endurance.

Unique Advantages

• High-speed Quad I/O read — Quad I/O Fast Read up to 133 MHz reduces code and data fetch latency for performance-sensitive embedded systems.
• Flexible protection model — Combined software and hardware write-protect features plus lockable OTP sector enable layered security and selective memory protection.
• Granular erase architecture — Uniform 4 Kbyte sectors with larger block options let designers optimize update size and minimize erase overhead.
• Low power operation — Typical 7 mA active current and 1 μA power-down current support energy-conscious designs and long standby operation.
• Industrial-grade operation — −40 °C to 85 °C temperature range and common SOP packaging simplify integration into industrial and embedded platforms.

Why Choose EN25SY256A-133FIP(2PC)?

The EN25SY256A-133FIP(2PC) combines a high-capacity 256 Mbit SPI NOR architecture with flexible single/dual/quad I/O modes and fast Quad read clocks up to 133 MHz, delivering a practical balance of performance and system integration for embedded applications. Its uniform sector architecture, robust program/erase endurance, and layered protection options make it suitable for firmware storage, field updates, and protected data segments.

Designed for industrial environments, the device’s specification set — including low-power standby, specified erase/program timings, OTP security, and an industrial temperature range — provides a reliable, long-term storage solution for customers developing embedded and industrial systems that require predictable behavior and standard package options.

Request a quote or contact sales to discuss pricing, availability, and how EN25SY256A-133FIP(2PC) can fit into your next design. Submitting a quote request will help you get lead-time and volume-pricing details tailored to your project needs.