BY25Q40GLUIG(R)

Memory IC Overview

The BY25Q40GLUIG(R) is a 4M-bit SPI NOR Flash memory manufactured by BYTe Semiconductor. It operates on a single supply voltage ranging from 1.65V to 2.0V. The device supports Standard, Dual, and Quad SPI interfaces with read clock rates of 33MHz for normal reads and up to 85MHz for other read modes. It features flexible erase architectures including 4KB sectors and 32/64KB blocks. Key electrical characteristics include a maximum active current of 3mA and a power-down current of 0.6uA. The component offers typical endurance of 10k program-erase cycles and 20-year data retention.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad Serial Peripheral Interface (SPI) communication protocols.
• Includes hardware and software write protection mechanisms with sector or block selection capabilities.
• Features a flexible erase architecture optimized for code shadowing and data storage efficiency.
• Provides low power consumption with dedicated active and standby power modes.

Memory IC Applications

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

Memory IC Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature grade. Ensure the supply voltage requirements align with the 1.65V to 2.0V operating range specified in the datasheet. Confirm that the selected variant matches the required commercial or industrial temperature specifications before procurement.

Memory IC Selection Notes

Select this component when a low-voltage operation between 1.65V and 2.0V is required. It is suitable for applications needing 4M-bit capacity with support for high-speed Quad SPI reads. Consider the 10k cycle endurance limit for write-intensive use cases. Verify compatibility with host systems supporting Standard, Dual, or Quad SPI modes.

Memory IC Part Context

The BY25Q40GL series belongs to BYTe Semiconductor's 4M-bit SPI NOR Flash family. This series is designed for high-volume consumer applications where code execution and data storage are primary functions. The GL variant specifically targets lower voltage operations compared to standard 3.3V parts, making it suitable for battery-powered or low-voltage logic systems.

Memory IC Replacement Considerations

Check for pin-compatible alternatives within the same voltage range. Verify interface speed compatibility, as some replacements may offer higher clock rates. Ensure the replacement part supports the required Quad SPI mode if utilized in the design. Confirm that the erase block sizes match the existing firmware structure.