BY25Q80BSSIG(T)

Memory IC Overview

The BY25Q80BSSIG(T) is an 8M-bit SPI NOR Flash memory manufactured by BYTe Semiconductor. It supports Standard, Dual, and Quad SPI interfaces, as well as QPI mode. The device operates on a single supply voltage ranging from 2.7V to 3.6V. Key electrical parameters include a maximum active current of 20mA and a power-down current of 5uA. It features a flexible architecture with 4KB sectors and 32/64KB blocks. Endurance is rated at 100k program-erase cycles with 20-year data retention.

Memory IC Feature Summary

• Supports high-speed data transfer via Dual I/O (up to 216 Mbits/s) and Quad I/O (up to 432 Mbits/s) modes.
• Enables Execute-In-Place (XIP) operations with continuous read capabilities using wrap commands.
• Incorporates comprehensive write protection mechanisms including hardware /WP control and software block protection.
• Features three 256-byte security registers with One-Time Programmable (OTP) lock capabilities.

Memory IC Applications

• Industrial control systems requiring robust data storage.
• Consumer electronics utilizing compact flash memory solutions.
• Embedded firmware storage in IoT devices.
• Automotive electronic modules operating within industrial temperature ranges.

Memory IC Procurement Notes

Verify the specific package variant (SOP8 or TSSOP8) and temperature grade (Commercial or Industrial) against the full part number suffix. Confirm that the 'T' designation aligns with the required packing quantity specifications for your manufacturing line. Ensure compatibility with the host system's voltage levels and SPI interface constraints before finalizing procurement orders.

Memory IC Selection Notes

Select this component when an 8M-bit capacity is required with support for advanced Quad SPI and QPI protocols. It is suitable for designs needing low standby power consumption and flexible memory protection schemes. Consider the available package options and operating temperature range to match the environmental requirements of the target application board.

Memory IC Part Context

This device belongs to the BY25Q80BS series of Serial Peripheral Interface NOR Flash memories. It is designed to provide non-volatile storage with high reliability and endurance. The series supports JEDEC standard identification codes and offers various package configurations to accommodate different PCB layout constraints and thermal management needs.

Memory IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

Memory IC FAQ

How does the device handle serial communication pauses?

The device supports a Hold (/HOLD) function that pauses serial communications without resetting the clocking sequence. This allows the processor to attend to higher priority tasks while maintaining the current state of data transfer.

What is the purpose of the QE bit in the status register?

The Quad Enable (QE) bit controls the availability of Quad SPI and QPI modes. When set to 1, it enables the use of IO2 and IO3 pins for data input/output instead of Write Protect and Hold functions, allowing for four-times faster data transfer rates.