BY25Q40BSTJG(T)

Memory IC Overview

The BY25Q40BSTJG(T) is a 4M-bit Serial Peripheral Interface (SPI) NOR Flash memory manufactured by BYTe Semiconductor. It supports Standard, Dual, and Quad SPI protocols as well as the Quad Peripheral Interface (QPI). The device operates on a single supply voltage ranging from 2.7V to 3.6V. Key performance specifications include a Normal Read clock rate of 55MHz and a Fast Read clock rate of 108MHz with a 30pF load. Data transfer speeds reach up to 216Mbits/s in Dual I/O mode and 432Mbits/s in Quad I/O mode. The architecture features 4KB sectors and 32/64KB blocks. Typical program and erase times are 0.6ms for page programming, 50ms for sector erasing, and 4s for chip erasing.

Memory IC Feature Summary

• Supports multiple interface modes including Standard SPI, Dual SPI, Quad SPI, and QPI for flexible system integration.
• Features hardware and software write protection mechanisms with configurable block protection and security registers.
• Enables Execute In Place (XIP) operation through continuous read capabilities with wrap functions.
• Includes programmable suspend and resume functionality for both program and erase operations.

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Consumer electronics firmware storage
• Industrial control system data logging
• IoT device configuration memory

Memory IC Procurement Notes

Verify the specific package variant corresponding to the suffix JG against the official datasheet before procurement. Confirm that the required operating temperature range matches the commercial or industrial grades specified in the documentation. Ensure the design accommodates the 2.7V to 3.6V supply voltage constraints. Cross-reference the pinout for the selected package style to guarantee correct PCB layout implementation.

Memory IC Selection Notes

Select this component when a 4M-bit capacity is required with support for high-speed Quad I/O and QPI interfaces. Consider the device if the application demands low power consumption with specific standby current limits. Evaluate the package options available for the BY25Q40BS series to match board space constraints. Verify compatibility with the host controller's SPI mode requirements and voltage levels.

Memory IC Part Context

This part belongs to the BY25Q40BS family of 4M-bit SPI NOR Flash memories. The family offers various package options including SOP and WSON styles. The BY25Q40BS series is designed for applications needing reliable data retention and endurance. It shares core architectural features with other members of the BY25Q series but differs in specific package and thermal characteristics.

Memory IC Replacement Considerations

BY25Q40BSTJG(R)