BY25Q32ESTIG(R)

Memory IC Overview

The BY25Q32ESTIG(R) is a 32M-bit SPI NOR Flash memory by BYTe Semiconductor, housed in an 8-SOP package. It supports Standard, Dual, and Quad SPI interfaces with clock rates up to 120MHz for fast read and data transfer speeds reaching 480Mbits/s in Quad I/O mode. Operating on a single 2.7V to 3.6V supply, it features flexible architecture with 4KB sectors and 32/64KB blocks. The device includes hardware and software write protection, three 1024-byte security registers, and supports Execute In Place (XIP).

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI modes with high-speed data transfer capabilities.
• Features flexible memory architecture with uniform 4KB sectors and 32/64KB blocks.
• Includes comprehensive write protection mechanisms via hardware pins and software commands.
• Provides secure storage with three dedicated 1024-byte One-Time Programmable security registers.

Memory IC Applications

• Firmware storage for microcontrollers and embedded systems.
• Code execution directly from flash memory (XIP).
• Data logging and configuration storage in industrial devices.
• Storage for boot code and operating system images.

Memory IC Procurement Notes

Verify the specific suffix 'R' indicates tape and reel packaging when ordering. Confirm the SOP-8 package variant matches your PCB footprint requirements. Ensure voltage levels align with the 2.7V to 3.6V operating range. Check for RoHS compliance status if required by your manufacturing standards. Validate that the manufacturer ID matches BYTe Semiconductor specifications.

Memory IC Selection Notes

Select this component for applications requiring high-density non-volatile storage with flexible interface options. Consider the Quad SPI capability if maximum throughput is necessary. Evaluate the write protection features against your system's security requirements. Ensure the operating temperature range meets your environmental conditions. Compare power consumption metrics if battery life is a critical design constraint.

Memory IC Part Context

This part belongs to the BY25Q32ES family of Serial Peripheral Interface Flash memories. It is designed for general-purpose storage needs in consumer electronics and industrial equipment. The series offers various package options including SOP and USON formats. It competes with other 32M-bit SPI NOR Flash devices from manufacturers like GigaDevice and Winbond.

Memory IC Replacement Considerations

GD25Q32ESIG by GigaDevice is a compatible alternative with similar capacity and interface support. BY25Q32ESSIG(T) offers identical electrical characteristics but may differ in packaging or reel configuration. Verify pin compatibility and command set adherence before substitution.

Memory IC FAQ

How does the /WP pin function in Quad SPI mode?

In Quad SPI mode, the /WP pin functions as IO2 for bidirectional data input and output. The hardware write protection feature is disabled when the Quad Enable (QE) bit is set to 1.

What is the purpose of the HOLD/RST bit in Status Register 3?

The HOLD/RST bit configures the /HOLD pin's function. When set to 0, it acts as a Hold pin to pause serial communication. When set to 1, it functions as a Hardware Reset pin to reset the device to its initial state.

Can the device be used for Execute In Place (XIP)?

Yes, the BY25Q32ES supports XIP operation, allowing continuous reading of program code directly from the flash memory without needing to copy it to RAM first.