BY25Q32BSWIG(R)

Memory IC Overview

The BY25Q32BS is a 32M-bit SPI NOR Flash memory supporting Standard, Dual, and Quad SPI interfaces. It operates on a single 2.7V to 3.6V supply. Key performance metrics include a Normal Read clock rate of 55MHz and a Fast Read clock rate of 108MHz (with 30pF load). Data transfer speeds reach up to 216Mbits/s for Dual I/O and 432Mbits/s for Quad I/O. The device features flexible architecture with 4KB sectors and 32/64KB blocks. Program/Erase speeds include a typical Page Program time of 0.6ms, Sector Erase time of 50ms, Block Erase time of 0.15s or 0.25s, and Chip Erase time of 15s.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI communication modes with continuous read capabilities including 8/16/32/64-byte wrap functionality.
• Provides comprehensive software and hardware write protection mechanisms, including block protection via BP bits and status register locking options.
• Includes three 256-byte security registers with One-Time Programmable (OTP) lock capabilities for permanent data protection.
• Features program and erase suspend/resume operations to allow non-intrusive reading of memory arrays during background write cycles.

Memory IC Applications

• Storage of firmware code and boot loaders in embedded systems
• Data logging and parameter storage in industrial control equipment
• Configuration memory for consumer electronics and IoT devices

Memory IC Procurement Notes

Verify the specific package variant required, as the datasheet lists SOP-8 (150-mil), SOP-8 (208-mil), WSON (6x5mm), and USON8 (4x3mm). Confirm temperature grade requirements against Commercial (0℃ to +70℃) and Industrial (-40℃ to +85℃ or +105℃) ranges. Ensure host system voltage levels are compatible with the 2.7V to 3.6V operating range before integration.

Memory IC Selection Notes

Select this component when a 32M-bit density is required with high-speed Quad SPI interface support. Consider the flexible block protection scheme if specific memory regions require permanent locking. Evaluate the available package options against PCB layout constraints. Verify that the host controller supports the necessary SPI modes and instruction sets for optimal data throughput.

Memory IC Part Context

The BY25Q32BS belongs to the BY25Q series of Serial Peripheral Interface NOR Flash memories manufactured by BYTe Semiconductor. This series is designed for applications requiring reliable non-volatile storage with varying speed and density options. The device utilizes a standard SPI bus architecture, ensuring compatibility with a wide range of microcontrollers and processors.

Memory IC Replacement Considerations

Cross-reference pinouts and command sets with other 32M-bit SPI NOR Flash devices from different manufacturers. Verify electrical characteristics and timing parameters to ensure compatibility with existing host controllers. Check for equivalent package availability if physical footprint changes are not permitted.