BY25Q20AWUIG(R)

Memory IC Overview

The BY25Q20AW is a 2M-bit SPI NOR Flash memory by BYTe Semiconductor. It supports Standard, Dual, and Quad SPI interfaces with clock rates up to 100MHz for advanced read modes and 50MHz for normal reads. The device operates on a single supply voltage ranging from 1.65V to 3.6V. It features flexible erase architectures including 4KB sectors, 32KB/64KB blocks, and page erases. Key electrical parameters include a maximum active current of 3mA and power-down current of 0.6uA. It offers 10k program-erase cycles endurance and 20-year data retention.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI communication protocols with software reset capabilities.
• Features flexible erase architecture with 4KB sectors and 32KB/64KB uniform blocks.
• Includes hardware and software write protection mechanisms with three 512-byte security registers.
• Operates on a wide single supply voltage range from 1.65V to 3.6V.

Memory IC Applications

• Code shadowing into embedded or external RAM for execution.
• General-purpose data storage applications requiring flexible erase granularity.
• High-volume consumer electronic devices utilizing serial flash memory.

Memory IC Procurement Notes

Verify the specific package variant (SOP8, TSSOP8, or USON8) required for your design, as the base model covers multiple form factors. Confirm the temperature grade (Commercial or Industrial) matches your environmental specifications. Ensure the ordering suffix aligns with the desired packing quantity and pin configuration details found in the official datasheet section 10.

Memory IC Selection Notes

Select this component when a low-voltage operation down to 1.65V is necessary, distinguishing it from standard 3.3V-only parts. Consider the Quad SPI capability if high-speed data throughput is critical for your application. Evaluate the 1.65V lower limit against your system's power rail stability requirements during brown-out conditions.

Memory IC Part Context

This part belongs to the BY25Q20 series of Serial Peripheral Interface NOR Flash memories manufactured by BYTe Semiconductor. It is designed as a cost-effective solution for code storage and data logging in consumer electronics. The device integrates JEDEC standard identification and unique serial numbers for system management.

Memory IC Replacement Considerations

Check for compatible alternatives within the BY25Q20 family or other 2M-bit SPI NOR Flash devices from different manufacturers that support the same 1.65V-3.6V voltage range and Quad SPI interface.

Memory IC FAQ

How does the /HOLD pin function change?

The /HOLD pin can be configured as a /RESET pin via the HOLD/RST bit in Status Register-3. If the Quad Enable (QE) bit is set to 1, this pin functions as IO3 for data I/O.

What are the supported erase sizes?

The device supports Page Erase (256-byte), Sector Erase (4KB), Block Erase (32KB or 64KB), and Chip Erase operations.