PUYA PY25Q512HB Automotive-grade Flash Breaks Through Extreme Condition Storage

Developed by PUYA Semiconductor, the PY25Q512HB-WXH is a 512Mb serial NOR Flash memory chip that meets AEC-Q100 Grade 1 automotive certification, making it a robust storage solution for automotive electronics and high-end embedded systems. With a wide voltage range of 2.7V to 3.6V and an operating temperature range of -40°C to 125°C, it seamlessly adapts to demanding applications such as smart cockpit systems and autonomous driving domain controllers, effectively addressing data storage stability challenges in extreme operating conditions.

In terms of core performance, the PY25Q512HB-WXH supports multiple high-speed transmission modes, including Standard SPI, Dual/Quad SPI, QPI, and DTR, with a maximum clock frequency of 133MHz. This enables data transfer rates comparable to parallel Flash memory. Particularly in 4-I/O mode, it achieves efficient reads at 80MHz with only 12mA operating current, significantly reducing startup times and firmware update cycles for automotive systems.

Power efficiency is another standout feature, with a deep power-down current of just 2μA and a standby current of 50μA—over 60% lower than traditional storage devices. This low-power advantage helps extend the battery life of new energy vehicles and IoT devices, making it ideal for long-term offline operations, such as ADAS sensor nodes.

Reliability is ensured with 100,000 program/erase cycles and 20-year data retention. The chip features sector lock protection via hardware pins, integrated 3x OTP security registers, and a 128-bit unique device ID. This dual mechanism of hardware protection and identity authentication provides tamper-resistant security for sensitive data like automotive keys and driving logs.

Architecturally, the PY25Q512HB-WXH introduces a flexible storage innovation with its byte-level multi-sector erase design. Unlike traditional large-sector Flash that often leads to wasted space, this architecture allows engineers to efficiently allocate storage for code segments, configuration parameters, and log data, maximizing storage efficiency without the need for additional data storage chips.

The chip is compatible with SPI Mode 0 and Mode 3 interfaces and offers package options such as 8-pad WSON and 16-lead SOP, simplifying integration with mainstream MCUs like STM32 and enabling seamless migration for embedded system upgrades.

In practical applications, the PY25Q512HB-WXH covers a full range of scenarios from smart cockpits to autonomous driving. In infotainment systems, its 133MHz high-speed transfer ensures smooth touch responses and rendering. For ADAS domain controllers, its high reliability guarantees real-time storage and rapid access for LiDAR point clouds and radar data, supporting millisecond-level decision-making in autonomous driving systems.

Thanks to its wide temperature range and low power consumption, the chip is also suited for industrial PLCs, smart meters, and IoT gateps. Its 4KB sector erase capability meets frequent log writing needs, while the 20-year data retention aligns with the full lifecycle requirements of industrial equipment.

As a 100% independently developed product, the PY25Q512HB-WXH fills the gap in high-end domestic automotive-grade Flash storage, offering performance comparable to international leading brands while excelling in packaging flexibility and cost control. As an authorized distributor of PUYA, MANDU Technology provides professional product selection and comprehensive technical support, facilitating efficient integration of this benchmark product into diverse application scenarios.

About Mandu Technology

Shenzhen Mandu Technology Co., Ltd. has steadfastly centered its operations on the distribution of high-performance, high-quality, and highly reliable integrated circuit products. Its portfolio encompasses memory chips, differential crystal oscillators, and MCU microcontrollers, while progressively integrating analog signal chain products. The company prides itself on delivering comprehensive and cost-effective solutions to its customers. Its products find applications across a broad spectrum of industries, including but not limited to network communication, industrial control, robotics, medical equipment, personal health, and numerous other fields.

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