BY25Q128ASSJG(R)

Memory IC Overview

The BY25Q128ASSJG(R) is a 128M-bit Serial Peripheral Interface (SPI) NOR Flash memory manufactured by BYTe Semiconductor. It supports Standard, Dual, and Quad SPI modes with data transfer rates up to 432 Mbits/s in Quad I/O mode. The device operates on a single supply voltage ranging from 2.7V to 3.6V and features an industrial temperature range of -40°C to +85°C. It utilizes an 8-pad WSON package measuring 6x5mm. Key performance metrics include a typical page program time of 0.6ms, sector erase time of 50ms, and block erase times of 0.15s or 0.25s depending on size.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI interfaces for flexible data transfer speeds.
• Includes hardware and software write protection mechanisms with selectable top/bottom sector locking.
• Features three 256-byte security registers with One-Time Programmable (OTP) lock capabilities.
• Provides programmable output driver strength settings to optimize signal integrity.

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Industrial control devices operating in wide temperature ranges
• Consumer electronics utilizing compact surface-mount packaging

Memory IC Procurement Notes

Verify the specific ordering suffix 'SJG(R)' against official BYTe Semiconductor documentation to confirm the exact package type and tape-and-reel specifications. Ensure compatibility with host system voltage levels within the 2.7V to 3.6V range. Confirm that the required Quad Enable bit configuration aligns with your firmware implementation for optimal throughput.

Memory IC Selection Notes

Select this component when a 128M-bit capacity is required in a small 8-pad WSON footprint. It is suitable for applications needing high-speed Quad SPI access and robust data protection features. Consider the industrial temperature rating if the environment exceeds commercial limits. Verify that the host controller supports the necessary SPI modes and instruction sets defined in the datasheet.

Memory IC Part Context

This part belongs to the BY25Q128AS family of 128M-bit SPI NOR Flash memories. The family offers various package options including SOP and WSON formats. The AS variant specifically denotes the industrial temperature grade and specific electrical characteristics. The manufacturer provides comprehensive documentation regarding pin configurations, instruction sets, and electrical parameters for integration.

Memory IC Replacement Considerations

Cross-reference with other BY25Q128AS variants for package differences. Verify functional equivalence with competitor parts offering similar density and interface speeds. Ensure pinout compatibility and voltage requirements match before substitution.