BY25Q16AWXIG(R)

Memory IC Overview

The BY25Q16AW is a 16M-bit SPI NOR Flash memory by BYTe Semiconductor. It supports Standard, Dual, and Quad SPI interfaces with clock rates up to 100MHz for general reads and 65MHz for normal reads. Operating voltage ranges from 1.65V to 3.6V. Key performance metrics include a typical page program time of 2ms, sector/block/chip erase times of 8ms, and active current of 3mA maximum.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI modes with software and hardware reset capabilities.
• Features flexible architecture with 4KB sectors and 32/64KB blocks for efficient code shadowing and data storage.
• Includes three 512-byte security registers with OTP lock and comprehensive write protection via /WP pin or software commands.
• Operates on a single low-voltage supply (1.65V-3.6V) with low power consumption in active and standby modes.

Memory IC Applications

• Code shadowing from Flash to embedded or external RAM for execution.
• Data storage applications requiring flexible erase granularity.
• High-volume consumer-based electronic devices.

Memory IC Procurement Notes

Verify the specific package variant (SOP8 150mil/208mil, USON8, or WSON8) required for your design, as the datasheet lists multiple physical packages under the BY25Q16AW series. Confirm temperature range specifications if industrial grade (-40°C to +105°C) is needed, as commercial grades are also available within the same part family.

Memory IC Selection Notes

Select this component for applications requiring wide voltage operation down to 1.65V, which distinguishes it from standard 2.7V parts. Ensure the host system supports the desired SPI mode (Standard/Dual/Quad) and that the 16Mb density fits the memory map. Check pin compatibility if replacing legacy parts, noting the dual-function pins for HOLD/WP in Quad mode.

Memory IC Part Context

The BY25Q16AW belongs to the BY25Q16 series of Serial Peripheral Interface Flash memories. It is designed to replace older generation NOR flashes in consumer electronics where lower voltage operation and higher speed Quad SPI access are beneficial. The device integrates JEDEC ID support and unique serial numbers for traceability.

Memory IC Replacement Considerations

Check pinout and voltage compatibility when substituting other 16Mb SPI NOR flashes. Verify if the target application requires the specific 1.65V minimum voltage capability or if standard 2.7V parts suffice. Ensure the replacement supports the required Quad SPI mode if high-speed read performance is critical.

Memory IC FAQ

How is the /HOLD pin function configured?

The /HOLD pin can be configured as a /RESET pin by setting the HOLD/RST bit in Status Register-3 to 1. If the Quad Enable (QE) bit is set to 1, the pin acts as IO3 and the hold/reset function is disabled.

What is the difference between Normal Read and Other Read Data speeds?

Normal Read Data supports a clock rate of 65MHz, while Other Read Data instructions (such as Fast Read) support a clock rate of up to 100MHz.