BY25Q40BLSIG(T)

Memory IC Overview

The BY25Q40BLSIG(T) is a 4Mbit SPI NOR Flash memory IC manufactured by BYTe Semiconductor. It features Quad I/O support with a standard clock frequency of 50 MHz and a typical access time of 17 ns. The device operates on a single supply voltage ranging from 1.65V to 3.6V and supports commercial (-40°C to +85°C) temperature ranges. Packaged in an 8-SOP format, it offers flexible architecture with 4K-byte sectors and 32/64K-byte blocks, ensuring reliable non-volatile data storage for embedded applications.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI interfaces with software reset capability
• Includes hardware and software write protection with sector or block selection
• Features low power consumption with maximum active current of 3mA
• Provides flexible erase options including page, sector, block, and chip erase

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• IoT devices needing compact flash memory solutions
• Industrial electronics operating within specified temperature ranges
• Consumer electronics utilizing SPI interface protocols

Memory IC Procurement Notes

Verify the manufacturer part number BY25Q40BLSIG(T) against official BYTe Semiconductor documentation to confirm pinout compatibility and electrical specifications. Ensure the 8-SOP package matches your PCB footprint requirements. Check for RoHS compliance status if required by your manufacturing standards. Confirm that the operating voltage range of 1.65V to 3.6V aligns with your system design constraints before finalizing procurement decisions.

Memory IC Selection Notes

Select this component when a 4Mbit capacity is sufficient for application needs. The 50 MHz clock speed suits moderate performance requirements. Consider the 8-SOP package size for space-constrained designs. Verify that the -40°C to +85°C temperature range meets environmental conditions. Ensure the system supports SPI Quad I/O mode if high-speed read operations are necessary for optimal performance.

Memory IC Part Context

BYTe Semiconductor specializes in non-volatile memory products, focusing on research and development of flash memory solutions. The BY25Q series represents their SPI NOR Flash offerings designed for various embedded applications. This specific model belongs to the 4Mbit capacity segment, providing a balance between storage density and interface simplicity for cost-sensitive electronic designs.

Memory IC Replacement Considerations

Check for compatible parts within the same BY25Q family with identical pinouts and electrical characteristics. Verify that any substitute maintains the 8-SOP package and 4Mbit capacity. Ensure replacement components support the same voltage range and temperature specifications. Confirm interface compatibility with existing SPI controllers in the target system design.