BY25Q40GWSIG(T)

Memory IC Overview

The BY25Q40GWSIG(T) is a 4-megabit SPI NOR flash memory component manufactured by BYTe Semiconductor. It features a flexible architecture with uniform 4-kilobyte sectors and 32/64-kilobyte blocks, supporting standard, dual, and quad SPI interfaces. The device operates on a single supply voltage ranging from 1.65 to 3.6 volts and supports clock rates up to 100 MHz in Quad I/O mode. It includes hardware and software write protection mechanisms, low power consumption modes, and high endurance ratings for program-erase cycles.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI communication protocols with software reset capability
• Features flexible memory architecture with uniform 4KB sectors and 32/64KB block erase options
• Includes comprehensive write protection via hardware pins and software commands, including security registers
• Designed for low power operation with minimal active and standby current consumption

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Consumer electronics firmware storage
• Industrial control system data logging
• IoT device configuration and parameter storage

Memory IC Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the operating temperature range matches your application requirements, as industrial grades may differ from commercial variants. Ensure voltage levels align with the 1.65V to 3.6V specification. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.

Memory IC Selection Notes

Select this component for applications needing small footprint NOR flash with multi-mode SPI support. Consider the 8-pin SOP package for space-constrained PCB layouts. Evaluate the 100MHz Quad SPI speed against system bus requirements. Check if the 4MB capacity meets future expansion needs without over-provisioning resources.

Memory IC Part Context

This part belongs to the BY25Q40G series of SPI NOR flash memories. It shares architectural similarities with other 4-megabit devices but offers specific interface speeds and voltage ranges. The manufacturer provides consistent pinouts across the series to facilitate design upgrades within the same product family.

Memory IC Replacement Considerations

BY25Q40GWTIG(R) is listed as a parameter-equivalent alternative.