BY25Q64ASSIG(R)

Memory IC Overview

The BY25Q64ASSIG(R) is a 64M-bit Serial Peripheral Interface (SPI) NOR Flash memory manufactured by BYTe Semiconductor. It supports standard, Dual SPI, and Quad SPI interfaces with data transfer speeds up to 432 Mbits/s in Quad I/O mode. The device operates on a single voltage supply ranging from 2.7V to 3.6V. It features flexible memory architecture with 4KB sectors and 32/64KB blocks, offering hardware and software write protection mechanisms including three 256-byte security registers with OTP locks.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI interfaces for high-speed data transfer
• Includes flexible memory architecture with uniform sector and block sizes
• Provides comprehensive write protection via software commands and hardware pins
• Features dedicated security registers with one-time programmable lock capabilities

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Industrial control units needing reliable data retention
• Consumer electronics utilizing compact flash memory solutions

Memory IC Procurement Notes

Verify the specific package variant required, as the base model supports SOP-8, WSON, and USON packages. Confirm temperature grade specifications against application requirements. Ensure ordering suffixes match exact pinout and marking preferences. Cross-reference JEDEC IDs for compatibility checks during integration.

Memory IC Selection Notes

Select this component for designs requiring high-density serial storage with robust protection features. Consider the Quad SPI capability for bandwidth-intensive applications. Evaluate power consumption profiles against system standby requirements. Verify interface compatibility with host microcontrollers supporting dual or quad modes.

Memory IC Part Context

This part belongs to the BY25Q series of SPI NOR Flash memories from BYTe Semiconductor. The series offers various densities with consistent interface protocols. The AS designation typically indicates specific performance grades within the product line. These devices are designed for general-purpose storage applications across commercial and industrial environments.

Memory IC Replacement Considerations

Check pin-to-pin compatibility with other 64M-bit SPI NOR Flash parts. Verify command set alignment for seamless firmware migration. Assess electrical characteristics such as voltage ranges and current consumption. Review package dimensions to ensure mechanical fit within existing PCB layouts.