EN35QX512A-104HIP(2SC)

The EN35QX512A-104HIP(2SC) is a 512 Mbit serial NOR flash memory device in the EN35QX512A series designed for industrial-temperature operation. It implements a SPI serial interface with Standard, Dual and Quad I/O modes and is optimized for high-performance non‑volatile code and data storage in embedded systems.

With a 104 MHz fast-read clock option, uniform 4-Kbyte sectors and multiple package options including an 8‑lead SOP 200mil, this device targets applications requiring reliable program/erase endurance, low-power standby, and flexible sector/block protection.

Key Features

• Memory Capacity & Organization 512 M‑bit (65,536 KByte) serial flash organized as 64M × 8 with 262,144 programmable pages and 256 bytes per page.
• Serial SPI Interface Supports Standard, Dual and Quad SPI modes with SPI-compatible Mode 0 and Mode 3 operation; Standard pins include CLK, CS#, DI, DO and Quad pins include DQ0–DQ3.
• High-Speed Read 104 MHz clock rate supported for Single/Dual/Quad I/O Fast Read (133 MHz supported for specific ordering at Quad I/O Fast Read per datasheet notes).
• Program/Erase Performance Typical page program time 0.5 ms; typical sector erase 40 ms, half-block erase 200 ms, block erase 300 ms, and chip erase ~120 seconds.
• Power and Supply Single power supply operation with full voltage range 2.7–3.6 V; low power consumption with typical active current 14 mA and typical power‑down current 2 μA.
• Reliability & Endurance Minimum 100K program/erase cycles per sector and typical data retention of 20 years.
• Uniform Sector Architecture 16,384 uniform 4‑Kbyte sectors; also organized as 2,048 blocks of 32 Kbyte and 1,024 blocks of 64 Kbyte to enable flexible erase granularity.
• Write Protection & Security Software and hardware write‑protect capabilities, lockable 3 × 512‑byte OTP security sector, and volatile status register bits for protection control.
• Addressing & Device ID Supports 3‑byte and 4‑byte address modes, Serial Flash Discoverable Parameters (SFDP), and Read Unique ID Number features.
• Package & Temperature Industrial temperature range −40°C to 85°C and available in an 8‑lead SOP 200mil package (other package options exist in the series).

Typical Applications

• Embedded Firmware Storage — Non-volatile storage for boot code and firmware images where sector-level erase and in‑field updates are required.
• Industrial Control — Program and configuration storage in industrial equipment benefiting from industrial temperature range and sector protection.
• Consumer & IoT Devices — External flash for code shadowing and data logging using high-speed Quad I/O reads for fast execute-in-place or update operations.
• Secure Data Storage — OTP and lockable regions for small secure storage areas and device-unique ID for system identification.

Unique Advantages

• Flexible SPI Modes: Standard, Dual and Quad I/O support enables designers to scale read throughput without changing memory family.
• Uniform Sector Granularity: 4‑Kbyte sector architecture simplifies firmware patching and selective block updates to minimize erase overhead.
• Industrial Temperature Rating: −40°C to 85°C operation ensures reliable performance across demanding environmental conditions.
• Low-Power Standby: Typical 2 μA power‑down current helps reduce system idle power consumption in battery‑sensitive designs.
• High Endurance & Retention: 100K program/erase cycles and 20‑year data retention provide long-term data integrity for deployed systems.
• Granular Protection: Combined hardware and software write-protect features plus OTP sectors allow tailored protection schemes for code and data.

Why Choose EN35QX512A-104HIP(2SC)?

The EN35QX512A-104HIP(2SC) delivers a balanced feature set for designers needing a high-capacity, industrial‑grade SPI NOR flash with proven program/erase endurance and multiple SPI modes. Its uniform sector architecture, low standby current, and device-level protection options make it suitable for embedded systems where selective updates, secure storage, and temperature resilience are important.

This device is well suited for engineering teams building industrial controllers, embedded consumer electronics, IoT gateways, or any system that requires reliable serial flash storage with flexible read performance and long-term data retention backed by documented program/erase characteristics.

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