BY25Q80BSMIG(R)

Memory IC Overview

The BY25Q80BS is an 8M-bit Serial Peripheral Interface (SPI) NOR Flash memory manufactured by BYTe Semiconductor. It supports Standard, Dual, Quad SPI, and QPI modes with a single voltage supply ranging from 2.7V to 3.6V. The device features flexible architecture with 4K-byte sectors and 32/64K-byte blocks. It offers fast read speeds up to 108MHz in serial mode and high data transfer rates of 216Mbits/s for Dual I/O and 432Mbits/s for Quad I/O operations.

Memory IC Feature Summary

• Supports multiple interface modes including Standard, Dual, Quad SPI, and QPI for optimized data throughput.
• Includes hardware and software write protection mechanisms with discoverable parameters via SFDP registers.
• Features low power consumption with active current of 20mA maximum and deep power-down current of 5uA maximum.
• Provides flexible memory architecture with sector sizes of 4K-bytes and block sizes of 32K or 64K-bytes.

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Industrial control applications operating in wide temperature ranges
• Consumer electronics utilizing execute-in-place (XIP) capabilities

Memory IC Procurement Notes

Verify the specific package variant required, as the datasheet lists SOP8 150mil, SOP8 208mil, TSSOP8 173mil, and USON8 2x3mm options. Confirm the industrial temperature grade (-40°C to +85°C or +105°C) matches the application environment. Ensure ordering suffixes align with the desired packing quantity and pin configuration before finalizing procurement.

Memory IC Selection Notes

Select this component when high-speed data transfer is critical, leveraging its Dual and Quad I/O capabilities. Consider the available package types such as SOP8 or USON8 based on board space constraints. Evaluate the need for security features like OTP locks and hardware write protection if the application requires robust data integrity against unauthorized modifications.

Memory IC Part Context

This part belongs to the BY25Q series of SPI NOR Flash memories from BYTe Semiconductor. It is designed for applications needing reliable non-volatile storage with flexible access modes. The series supports various packaging options to accommodate different PCB layout requirements while maintaining consistent electrical performance across the product line.

Memory IC Replacement Considerations

Check for compatible parts within the BY25Q family that match the required density and interface speed. Verify pin compatibility and package dimensions if substituting with alternative manufacturers' offerings. Ensure the replacement supports the necessary temperature range and voltage specifications for the target system.

Memory IC FAQ

How does the device handle hold conditions during operation?

The /HOLD signal pauses serial communications without resetting the clocking sequence. It starts on the falling edge of /HOLD when SCLK is low and ends on the rising edge of /HOLD when SCLK is low.

What is the function of the QE bit in Status Register 2?

The Quad Enable (QE) bit allows Quad SPI operation. When set to 1, it enables IO2 and IO3 pins for data input/output and is required to enter QPI mode.