Recently, China Micro Semicon (Cmsemicon), headquartered in Shenzhen, announced that its self-developed 32 Mbit SPI NOR Flash chip, the CMS25Q32A, has completed mass-production tape-out and passed sample qualification, and is now poised for official market release. This marks the latest achievement in the company’s serial expansion of its memory portfolio, following the debut of its first NOR Flash product, the CMS25Q40A, in January 2026.

Technical Performance and Features

The CMS25Q32A offers 32 Mbit (4 MB) of storage, organized into 16,384 programmable pages of 256 bytes each, with a maximum of 256 bytes writable per single programming operation. The device supports flexible erase management, including 1 KB sector erase (4-page groups), 4 KB sector erase (16-page groups), 32 KB block erase (128-page groups), 64 KB block erase (256-page groups), and full-chip erase.

Operating from a single power supply with a wide voltage range of 1.65 V to 3.6 V, the chip is compatible with standard SPI interfaces and supports high-performance dual-output and quad-output modes. It is available in multiple compact packages: SOP8 150 mil, SOP8 208 mil, USON8 2 × 3 mm, and WSON8 5 × 6 mm.

The device is primarily targeted at embedded MCU program storage, small-scale smart hardware configuration storage, low-power IoT terminal storage, compact display data storage, and peripheral/module companion storage applications.

Strategic Significance

With MCU devices as its longstanding core business, Cmsemicon’s rapid iteration in NOR Flash represents a critical move to enrich its "MCU-plus" product matrix. From the initial 4 Mbit CMS25Q40A launched in January to the 32 Mbit CMS25Q32A now entering mass production in May, the company has established preliminary coverage spanning 4 Mbit to 64 Mbit. By deeply integrating Flash memory with its proprietary MCU ecosystem, Cmsemicon aims to deliver efficient, reliable storage-and-control integrated solutions, strengthening its supporting service capabilities across consumer electronics, industrial control, and automotive electronics end markets.

Cmsemicon also cautions that the new product has not yet generated sales, carrying risks of slower-than-expected market penetration and customer adoption. Additionally, the NOR Flash market is relatively small and increasingly competitive. Whether the memory product line can complete its planned serialization on schedule and whether performance metrics will prove sufficiently competitive remain to be seen.

CONEVO Chips Distributor

CONEVO Electronics is an electronic component distributor and solution provider, specializing in high-end core components such as FPGAs, MCUs, DSPs, power management, and storage. Its business covers high-reliability fields such as aerospace, automotive electronics, industrial control, and consumer electronics, and is committed to becoming a long-term architecture partner for customers in the development of complex electronic systems. CONEVO's Recommended IC models for sale today with discounted prices.

1. ISL99390FRZ-TR5948: 90A intelligent power module, integrating efficient MOSFET driver and multiple protection functions.

2. MT53E512M32D1ZW-046: 16Gb LPDDR4X automotive-grade memory produced by Micron, featuring ultra-low operating voltage and wide temperature operating range.

3. NCV7608DQR2G: 8-channel configurable high/low-side driver from onsemi, supporting SPI control and comprehensive fault diagnosis.

Website: www.conevoelec.com

Email: info@conevoelec.com