EN35SXR512A-133YIP(2PC)

The EN35SXR512A-133YIP(2PC) is a 512 M-bit serial NOR flash memory in a compact 8-pin WSON (8×6 mm) surface-mount package, offered for industrial-temperature applications. It implements SPI-compatible serial architecture with Single, Dual and Quad I/O modes to support high-performance code and data storage in embedded systems.

Designed for in-system firmware storage, secure data segments and frequent code updates, the device combines high read throughput (up to 133 MHz Quad I/O Fast Read) with sector-level erase and hardware/software protection features for flexible, reliable field update workflows.

Key Features

• Memory — 64M × 8 organization (512 M-bit) with 262,144 pages and 256 bytes per programmable page, enabling fine-grained program operations.
• Performance — Quad I/O Fast Read up to 133 MHz; typical page program time 0.5 ms and typical sector erase time 40 ms for responsive updates.
• Interface — Serial SPI-compatible architecture supporting Standard, Dual and Quad SPI modes (CLK, CS#, DI, DO, DQ₂, DQ₃) and SPI modes 0 and 3.
• Power — Low-power operation with typical active current of 24 mA and typical power-down current of 2 µA.
• Reliability & Endurance — Uniform 4-Kbyte sector architecture (16,384 sectors), minimum 100K program/erase cycles per sector and 20-year data retention.
• Security & Management — Lockable 3×512-byte OTP security sector, Read Unique ID, Replay-Protected Monotonic Counter (RPMC), and support for Serial Flash Discoverable Parameters (SFDP).
• Erase & Addressing — Individual sector/block erase (4 KB sectors, 32 KB/64 KB blocks), chip erase capability and selectable 3-byte/4-byte addressing.
• Package & Temperature — Industrial-grade surface-mount 8-pin WSON (8×6 mm) package; operating temperature range −40 °C to 85 °C.

Typical Applications

• Embedded firmware storage — Stores boot code and firmware with support for sector-level updates and fast read performance for reduced boot time.
• Field upgrades / OTA updates — Individual sector and block erase plus fast page programming enable reliable remote firmware patching and in-field revisions.
• Secure data and identity — Lockable OTP sector, Unique ID and RPMC support secure storage and replay-protected counters for device identity and tamper mitigation.
• Industrial control and instrumentation — Industrial temperature rating and surface-mount WSON package make it suitable for control systems and embedded instrumentation.

Unique Advantages

• High-throughput Quad I/O: Up to 133 MHz Quad I/O Fast Read enables faster code fetch and data access for performance-sensitive embedded systems.
• Fine-grained update capability: 4 KB uniform sectors and per-sector erase allow targeted firmware patches without full-chip erase, simplifying field maintenance.
• Robust protection features: Software and hardware write protection, OTP locking and RPMC provide multiple layers of data and firmware security.
• Low-power standby: Typical 2 µA power-down current helps minimize energy use in battery-backed or low-power systems.
• Industrial readiness: −40 °C to 85 °C operating range and a compact WSON SMD package support dense board designs for industrial applications.
• Proven endurance and retention: Minimum 100K program/erase cycles and 20-year data retention support long-term deployment and reliability.

Why Choose EN35SXR512A-133YIP(2PC)?

The EN35SXR512A-133YIP(2PC) positions itself as a versatile serial NOR flash solution for embedded and industrial designs requiring non-volatile program and data storage, secure update mechanisms and high read performance. Its SPI-compatible Single/Dual/Quad I/O modes and up-to-133 MHz Quad Read enable responsive system behavior while sector-level erase and multiple protection features simplify firmware management and device security.

This device is suited to designers seeking industrial-temperature, surface-mount memory with documented endurance and retention characteristics, compact package options and integrated security primitives for robust long-term deployments.

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