BY25Q16BSSIG(R)

Memory IC Overview

The BY25Q16BSSIG(R) is a 16M-bit SPI NOR Flash memory by BYTe Semiconductor, housed in an 8-SOP package. It supports Standard, Dual, and Quad SPI interfaces, with data transfer speeds reaching 216 Mbits/s for Dual I/O and 432 Mbits/s for Quad I/O. Operating on a single 2.7V to 3.6V supply, it features a clock frequency of 108 MHz, standby current of 12uA, and endurance of 100k program-erase cycles. The device includes hardware write protection, security registers, and operates within -40°C to +85°C.

Memory IC Feature Summary

• Supports standard, dual, and quad SPI protocols including QPI mode for high-speed data transfer.
• Features flexible software and hardware write protection mechanisms with block protect bits.
• Includes three 256-byte security registers with one-time programmable lock capabilities.
• Allows execute-in-place (XIP) operations with continuous read support.

Memory IC Applications

• Embedded systems requiring non-volatile code storage.
• Consumer electronics firmware applications.
• Industrial control system programming.
• IoT devices needing reliable low-power memory.

Memory IC Procurement Notes

Verify the specific suffix 'S' indicates the SOP8 208mil package variant when sourcing. Confirm the manufacturer is BYTe Semiconductor or BYTe/Q. Ensure the component meets RoHS3 compliance standards as specified in the datasheet. Check for availability of the reel packaging format if required for automated assembly processes.

Memory IC Selection Notes

Select this component for designs requiring 16Mbit capacity with robust write protection features. It is suitable for applications needing XIP capability and high-speed Quad I/O transfers. Consider the industrial temperature range and low power consumption characteristics for embedded environments.

Memory IC Part Context

This part belongs to the BY25Q16BS family of SPI NOR Flash memories. It shares core architectural features with other variants in the series but differs in package type and specific ordering suffixes. The BY25Q16BS line is designed to provide cost-effective, high-performance storage solutions for various electronic applications.

Memory IC Replacement Considerations

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

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 LB bits in the status register?

The LB bits (LB3, LB2, LB1) are One-Time Programmable (OTP) bits that provide permanent write protection for the Security Registers. Once set to 1, the corresponding security registers become read-only permanently.