EN35QYR256A-104HIP(2UC)

The EN35QYR256A-104HIP(2UC) is a 256 Mbit serial SPI NOR flash memory device designed for industrial applications. It implements a serial interface architecture with Single/Dual/Quad I/O, supports fast reads at up to 104 MHz, and provides uniform 4 Kbyte sectors for flexible code and data management.

Built for system-level reliability, the device combines high-density non-volatile storage, software and hardware write protection, and industry-grade temperature range to serve embedded code storage, firmware update, and data-logging use cases.

Key Features

• Memory Architecture  256 M-bit capacity organized as 32M × 8 with 256-byte programmable pages, 131,072 pages total, and uniform 4-Kbyte sectors for granular erase and update.
• Serial SPI Interface  Supports Standard, Dual and Quad SPI modes with Single/Dual/Quad I/O lines and SPI Mode 0 and Mode 3 compatibility for flexible system integration.
• High-Speed Read  Fast read capability with a 104 MHz clock rate (Single/Dual/Quad I/O Fast Read) to support high-throughput boot and execute-in-place scenarios.
• Program & Erase Performance  Typical page program time is 0.5 ms; typical sector erase time is 40 ms, with half-block and block erase options for larger regions.
• Power  Single-supply operation over 2.7–3.6 V (series datasheet), with low-power behavior including ~12 mA typical active current and ~1 µA typical power-down current.
• Reliability & Endurance  Minimum 100K program/erase cycles per sector and more than 20-year data retention for long-term field reliability.
• Security & Protection  Software and hardware write protection, configurable protection regions, lockable 3×512-byte OTP security sector, Read Unique ID and Replay-Protected Monotonic Counter (RPMC).
• Addressing & Compatibility  Supports both 3-byte and 4-byte addressing and Serial Flash Discoverable Parameters (SFDP) for easier system integration.
• Package & Temperature Range  Available in an 8-pin SOP 200 mil package and specified for industrial operation from −40 °C to 85 °C; RoHS compliant.

Typical Applications

• Embedded Firmware Storage  Reliable non-volatile storage for boot code, firmware images, and in-field updates where uniform sector erase and write protection are required.
• Consumer & Industrial Appliances  Code and parameter storage for appliances and industrial controllers that require robust retention and endurance across extended temperature ranges.
• IoT & Edge Devices  Local program and data storage for gateways, sensors and edge controllers benefiting from low power consumption and fast read performance.
• System ROM / BIOS  Execute-in-place and fast-boot use cases where 104 MHz read performance and sector-level update capability reduce system boot time and simplify firmware management.

Unique Advantages

• Flexible I/O Modes: Single/Dual/Quad SPI support provides designers options to trade off pin count and throughput without changing the memory family.
• Granular Erase Control: 4-Kbyte uniform sectors plus larger block erase options let systems update small code modules or perform full-chip maintenance as needed.
• Long-Term Field Reliability: Minimum 100K endurance cycles and over 20 years data retention help maintain device integrity across extended deployments.
• Integrated Protection Features: Combined software and hardware write protection and a lockable OTP sector simplify secure storage and firmware update strategies.
• Industrial Temperature Range: Specified operation from −40 °C to 85 °C permits deployment in a wide range of environmental conditions.
• Compact Package Options: 8-pin SOP 200 mil package supports space-constrained PCB designs while retaining full SPI feature set.

Why Choose EN35QYR256A-104HIP(2UC)?

The EN35QYR256A-104HIP(2UC) positions itself as a robust, high-density SPI NOR flash solution for designs that require reliable non-volatile storage, flexible protection mechanisms, and fast read performance up to 104 MHz. Its uniform sector architecture and endurance characteristics make it well suited for firmware, code shadowing, and long-lived data storage in industrial environments.

Engineers choosing this device benefit from a combination of programmability, security options, and industrial temperature support that simplifies system architecture and extends operational lifetime while minimizing the need for redesign across product generations.

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