EN35SXR512A-133FIP(2PC)

The EN35SXR512A-133FIP(2PC) is a 512 Mbit serial NOR Flash memory device in a 16-pin SOP (300 mil) package, designed for industrial temperature operation. It uses a SPI-compatible serial interface with single, dual and quad I/O modes and delivers high-performance quad I/O fast read capability for code and data storage in embedded systems.

Targeted at embedded and industrial applications, this device combines sector-level erase, fast page programming and low-power standby options to support firmware storage, boot code, and data logging where reliability and field update capability are required.

Key Features

• Memory Capacity & Organization — 512 M-bit density implemented as 64M × 8 (65,536 KByte / 262,144 pages), with 256 bytes per programmable page.
• Serial SPI Architecture — Supports Standard, Dual and Quad SPI (standard pins CLK, CS#, DI, DO; dual pins DQ0/DQ1; quad pins DQ0–DQ3) and SPI modes 0 and 3.
• High-Speed Read — Quad I/O Fast Read up to 133 MHz; single/dual/quad fast read supported (104 MHz noted for other fast-read modes).
• Voltage Range — Full operating range 1.65–1.95 V with regulated operation at 1.8–1.95 V.
• Program & Erase Performance — Typical page program time 0.5 ms (500 µs); typical sector erase 40 ms, half-block and block erase times and a full-chip erase option.
• Uniform Sector Architecture — 4 KB uniform sectors (16,384 sectors), plus larger block/erase granularities (32 KB and 64 KB blocks) enabling flexible update and protection strategies.
• Write Protection & Security — Software and hardware write protection, lockable 3 × 512-byte OTP sector, Read Unique ID and replay-protected monotonic counter (RPMC).
• Endurance & Retention — Minimum 100K program/erase cycles per sector and 20-year data retention.
• Low Power — Typical active current ~24 mA and typical power-down current ~2 µA.
• Industrial Temperature & Package — Rated for −40 °C to 85 °C operation; supplied in 16-pin SOP 300 mil surface-mount package.
• Addressing & Compatibility — Supports 3-byte and 4-byte address modes and Serial Flash Discoverable Parameters (SFDP).

Typical Applications

• Embedded Control & Firmware Storage — Non-volatile storage for boot code, firmware images and in-field firmware updates using sector/block erase and write protection.
• Industrial Instrumentation — Reliable code and parameter storage across −40 °C to 85 °C operating conditions.
• Consumer & IoT Devices — External flash for large codebases and data logging where quad SPI performance and low-power standby matter.
• Networking & Communications — Storage of configuration data, boot code and device identifiers supporting fast read and security features such as Unique ID and RPMC.

Unique Advantages

• Flexible I/O Modes: Standard/Dual/Quad SPI options let designers trade pin usage for throughput without changing memory family.
• Fast Quad Read Performance: 133 MHz Quad I/O fast read accelerates code fetch and large-block data transfers in high-throughput designs.
• Granular Erase & Protection: 4 KB uniform sectors and hardware/software protection enable secure, fine-grained updates and OTA patching strategies.
• Industrial Reliability: Designed for −40 °C to 85 °C operation with typical endurance of 100K cycles and 20-year retention for long-term field use.
• Low-Power Standby: Very low power-down current (~2 µA) helps meet energy budgets in battery-assisted or low-power systems.
• Security & Device Management: Built-in Unique ID and replay-protected monotonic counter provide mechanisms for device authentication and secure update tracking.

Why Choose EN35SXR512A-133FIP(2PC)?

The EN35SXR512A-133FIP(2PC) positions itself as a robust serial NOR Flash option for embedded and industrial designs that require large non-volatile storage, secure update capability and high read performance. Its support for Single/Dual/Quad SPI, 133 MHz quad read throughput and sector-level protection make it suitable for firmware-heavy systems and applications that demand efficient code execution and field updates.

With industrial temperature rating, proven program/erase endurance and low-power standby behavior, this device is appropriate for long-life deployments where reliability, secure storage and predictable performance are priorities.

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