BY25Q128ASSIG(R)

Memory IC Overview

The BY25Q128ASSIG(R) is a 128M-bit Serial Peripheral Interface (SPI) NOR Flash memory manufactured by BYTe Semiconductor. It supports Standard, Dual, and Quad SPI modes with clock rates up to 108MHz for Fast Read. The device features a flexible architecture with 4KB sectors and 32/64KB blocks. It operates on a single supply voltage ranging from 2.7V to 3.6V and includes software/hardware write protection via three 256-byte security registers. The component is available in an 8-WSON package.

Memory IC Feature Summary

• Supports Dual I/O data transfer at 216Mbits/s and Quad I/O data transfer at 432Mbits/s
• Includes software and hardware write protection mechanisms with block protect bits
• Features three 256-byte Security Registers with One-Time Programmable (OTP) locks
• Provides program and erase suspend/resume capabilities

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Industrial control applications needing wide temperature operation
• Consumer electronics utilizing low power standby modes
• IoT devices requiring secure firmware storage

Memory IC Procurement Notes

Verify the specific suffix 'SIG(R)' against the manufacturer's official ordering information to confirm the exact package type and tape/reel specifications. Ensure compatibility with the host system's voltage levels and SPI interface timing requirements before integration. Confirm RoHS compliance status for your region.

Memory IC Selection Notes

Select this component when high-speed Quad SPI access is required for efficient data retrieval. Consider the 8-WSON package for space-constrained designs. Evaluate the need for hardware write protection if the application demands robust security against unauthorized modifications. Check operating temperature range requirements against industrial or commercial grades.

Memory IC Part Context

This part belongs to the BY25Q128AS family of 128M-bit SPI NOR Flash memories. The family offers various packaging options including SOP and WSON. The device is designed for applications requiring reliable data retention and high endurance, supporting standard JEDEC identification commands.

Memory IC Replacement Considerations

Check for pin-compatible alternatives within the same density class. Verify that substitute parts support the required Quad SPI mode and similar voltage ranges. Ensure security register features are comparable if protection is critical.