BY25Q40AWTIG(T)

Memory IC Overview

The BY25Q40AW is a 4M-bit SPI NOR Flash memory designed for code shadowing and data storage. It supports Standard, Dual, and Quad SPI interfaces with clock rates up to 85MHz for non-normal reads. The device operates on a single supply voltage ranging from 1.65V to 3.6V. Key electrical parameters include a maximum active current of 3mA and a power-down current of 0.6uA. Program/Erase times are typically 2ms for pages and 8ms for sectors, blocks, or the entire chip. It offers flexible architecture with 4KB sectors and 32/64KB blocks, ensuring efficient memory utilization.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI modes with software reset capability
• Features flexible erase architecture with 4KB sectors and 32/64KB blocks
• Includes hardware and software write protection with security registers
• Operates within a wide temperature range including commercial and industrial grades

Memory IC Applications

• Code shadowing into embedded or external RAM
• Data storage applications requiring flexible erase granularity
• High-volume consumer-based electronic devices

Memory IC Procurement Notes

Verify the specific package variant (SOP, TSSOP, or USON) required for your design against the ordering information section of the datasheet. Confirm that the temperature grade matches your application environment, as the BY25Q40AW series includes both commercial and industrial options. Ensure compatibility with the 1.65V to 3.6V supply voltage range before integration.

Memory IC Selection Notes

Select this component when a 4M-bit capacity is needed with support for high-speed Quad SPI operations. Consider the flexible block structure for applications requiring efficient code updates or mixed data/code storage. Verify that the operating voltage range aligns with your system's power supply rails and that the available packages fit your PCB layout constraints.

Memory IC Part Context

The BY25Q40AW belongs to the BY25Q40 family of SPI NOR Flash memories manufactured by BYTe Semiconductor. This family is optimized for high-volume consumer applications where code execution and data retention are critical. The device shares architectural similarities with other members in the series but is distinct in its specific density and interface capabilities defined in the official datasheet.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: None identified in source material.