EN35QXR512A-133WIP(2SC)

The EN35QXR512A-133WIP(2SC) is a 512 Mbit serial SPI NOR Flash device offering Single/Dual/Quad SPI operation and a uniform 4-Kbyte sector architecture. Designed for industrial temperature use, it targets firmware storage, in-field code updates and high-speed code/data read applications that require reliable non-volatile storage with hardware and software protection features.

Built on a serial interface architecture with support for high-speed Quad I/O Fast Read up to 133 MHz, this device balances fast read throughput, granular erase/program control and built-in security primitives for embedded systems and industrial designs.

Key Features

• Memory  512 M-bit serial flash organized as 65,536 KByte total, 262,144 pages with 256 bytes per programmable page and a uniform 4-Kbyte sector architecture.
• Interface  Serial Peripheral Interface (SPI) compatible, supporting Standard, Dual and Quad SPI modes. SPI compatible modes 0 and 3 are supported with standard pins CLK, CS#, DI (DQ0), DO (DQ1), plus DQ2/DQ3 for Quad I/O.
• High‑speed Read  Quad I/O Fast Read up to 133 MHz (conditional by ordering part number) and up to 104 MHz for Single/Dual/Quad I/O Fast Read, with configurable dummy cycle count for timing optimization.
• Program & Erase Performance  Typical page program time 0.5 ms; typical sector erase time 40 ms, half-block 200 ms, block erase 300 ms and full chip erase 120 seconds—providing predictable program/erase behavior.
• Power  Single power supply operation with low power consumption: typical active current ~24 mA and typical power-down current ~2 µA.
• Protection & Security  Software and hardware write protection options, lockable 3×512‑byte OTP security sector, Read Unique ID and a Replay‑Protected Monotonic Counter (RPMC) for secure applications.
• Reliability  Minimum 100K program/erase cycles per sector or block and data retention specified at 20 years.
• Package & Temperature  Surface-mount 8‑pin WSON (5×6 mm) package option with industrial operating temperature range of −40 °C to 85 °C.

Typical Applications

• Firmware storage and in-field updates  Granular sector architecture and software/hardware protection enable safe patching and partial updates of code segments without exposing the entire memory.
• System boot and code read‑out  High-speed Quad I/O Fast Read (up to 133 MHz) supports rapid code retrieval for boot loaders and system firmware.
• Secure configuration and counters  Lockable OTP region, Read Unique ID and RPMC support secure storage of cryptographic keys, configuration and monotonic counters.
• Industrial controllers and embedded equipment  Industrial temperature rating (−40 °C to 85 °C) and surface-mount packaging make this device suitable for industrial automation and control electronics.

Unique Advantages

• Flexible SPI modes: Single, Dual and Quad SPI support lets designs trade pin usage for throughput without changing the memory family.
• High throughput reads: 133 MHz Quad I/O Fast Read reduces read latency for firmware and data access in time-sensitive systems.
• Granular erase control: 4-Kbyte uniform sectors allow selective updates and minimize erase overhead during field updates or incremental data writes.
• Security primitives: Lockable OTP and RPMC provide on-device options for secure keys and tamper-resistant counters.
• Industrial readiness: Specified operating range to −40 °C and 85 °C and surface-mount WSON packaging simplify integration into industrial PCBs.
• Predictable program/erase timing: Published typical times for page program and sector/block erase enable deterministic firmware update and manufacturing flows.

Why Choose EN35QXR512A-133WIP(2SC)?

The EN35QXR512A-133WIP(2SC) positions itself as a robust serial NOR flash option for designs that require high-speed Quad I/O reads, secure on‑device features and industrial temperature operation. Its uniform 4-Kbyte sectors, lockable OTP and RPMC combine to support in-field firmware updates, secure storage and modular code management.

This device is well suited to embedded and industrial customers seeking a proven SPI NOR Flash solution with documented program/erase profiling, flexible SPI modes and low-power standby characteristics—facilitating reliable long-term deployments and streamlined firmware maintenance.

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