EN25QX64A-133FIP(2C)

The EN25QX64A-133FIP(2C) is a 64 M-bit serial NOR flash memory from ESMT designed for high-performance code and data storage in industrial embedded systems. It implements a serial SPI architecture with support for Standard, Dual and Quad I/O modes and is offered in a 16-pin SOP 300mil surface-mount package targeted at industrial temperature operation.

With high-speed Quad I/O Fast Read capability at a dedicated 133 MHz clock rate, uniform 4-Kbyte sectors and comprehensive write-protection options, this device addresses firmware storage, field updates and protected data segments in robust designs.

Key Features

• Memory & Organization 64 M-bit serial flash arranged as 8,192 KByte / 32,768 pages with 256 bytes per programmable page and a uniform 4-Kbyte sector architecture (2,048 sectors).
• Interface & Performance Serial SPI architecture supporting Standard, Dual and Quad SPI; Quad I/O Fast Read dedicated for 133 MHz operation and Fast Read at 104 MHz for other I/O modes.
• Program / Erase Performance Page program supports 1–256 bytes per operation (typical page program time 0.5 ms); typical sector erase time 40 ms, half-block 200 ms, block 300 ms and full chip erase about 30 seconds.
• Low Power Low active and standby currents noted in the datasheet (typical active current 6 mA, typical standby current 1 μA).
• Write Protection & Security Software and hardware write protection including WP# pin, volatile status register bits, lockable 3 × 512-byte OTP sectors, and support for write suspend/resume.
• Reliability & Endurance Minimum 100K program/erase cycles per sector and greater than 20-year data retention as documented in the datasheet.
• Package & Temperature Surface-mount 16-pin SOP 300mil package; industrial operating temperature range (−40 °C to 85 °C) as listed in the product specifications.
• Standards & Discoverability Supports Serial Flash Discoverable Parameters (SFDP) signature and Read Unique ID Number commands per the datasheet.

Typical Applications

• Embedded firmware storage — Non-volatile storage for program code and boot images with sector-level erase and protection for targeted updates.
• Field firmware updates and patching — Uniform 4-Kbyte sectors and block protection enable safe in-field code patching while protecting other regions.
• Industrial control and automation — Industrial temperature rating and surface-mount 16-pin SOP packaging suit space-constrained control electronics and automation modules.
• Secure data segments — Lockable OTP regions and hardware/software write protection support protected configuration and calibration storage.

Unique Advantages

• High-speed Quad I/O capability: Dedicated 133 MHz Quad I/O Fast Read supports faster code fetch and data transfer when using quad read instructions.
• Flexible SPI modes: Standard, Dual and Quad SPI modes allow designers to optimize pin usage and throughput for their system requirements.
• Uniform sector architecture: 4-Kbyte uniform sectors simplify memory management and enable selective erasure for efficient updates.
• Comprehensive protection features: Software and hardware write-protect mechanisms plus lockable OTP areas reduce risk of unintended modification.
• Documented endurance and retention: Minimum 100K program/erase cycles per sector and more than 20-year data retention provide long-term reliability for deployed systems.
• Industrial-grade packaging and temperature: Surface-mount 16-pin SOP 300mil with −40 °C to 85 °C operating range fits industrial applications.

Why Choose EN25QX64A-133FIP(2C)?

The EN25QX64A-133FIP(2C) positions itself as a robust serial NOR flash option for designs that require high-speed quad read performance, sector-level erase flexibility and strong data protection. Its support for multiple SPI modes, lockable OTP and documented program/erase endurance make it well suited to embedded systems that need reliable non-volatile code and data storage across long lifecycles.

With industrial temperature support and a compact 16-pin SOP 300mil surface-mount package, this device is appropriate for space-constrained industrial applications where controlled power consumption, fast read throughput and secure update mechanisms are priorities.

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