BY25Q256FSSIG: A Detailed Introduction to High-Performance SPI NOR Flash ​Memory

BY25Q256FSSIG is a 256-Mbit SPI NOR Flash memory produced by BOYA TECHNOLOGY. It features a range of advanced product characteristics and is suitable for a variety of embedded storage applications. Below is a detailed introduction to the product:

Product Overview

BY25Q256FSSIG is a non-volatile memory based on the Serial Peripheral Interface (SPI) with a capacity of 256 Mbit (32 MB). It operates within a voltage range of 2.7V to 3.6V and supports Standard SPI, Dual SPI, Quad SPI, and QPI modes. It can meet the demands of high performance and low power consumption.

Main Features

1.Support for multiple SPI interface modes

Standard SPI: Uses signal lines such as SCLK, /CS, SI, SO, /WP, /HOLD, etc.

Dual SPI: Supports dual-line data transfer with a data transfer rate up to 216 Mbit/s.

Quad SPI and QPI mode: Supports four-line data transfer with a data transfer rate up to 432 Mbit/s. It also supports Double Data Rate (DDR) read      operations, significantly improving data throughput.

2.High-speed read and write performance

Read performance:

Standard read frequency: Up to 55 MHz

Fast read frequency: Up to 100 MHz

Data transfer rate in Dual I/O mode: Up to 200 Mbit/s

Data transfer rate in Quad I/O and QPI mode: Up to 400 Mbit/s

Write performance:

Supports page programming with a maximum page size of 256 bytes.

Supports suspend and resume functions to enhance write flexibility.

Erase operations:

Supports 4 KB sector erase, 32 KB/64 KB block erase, and full-chip erase.

Erase times are 50 ms (sector), 150-250 ms (block), and 80 seconds (full chip).

3.Flexible storage architecture

The storage units are divided into 4 KB sectors and 32 KB/64 KB blocks, allowing users to manage and operate according to application needs.

Supports both 3-byte and 4-byte address modes to meet different capacity requirements. The 3-byte address mode supports accessing capacities above 256 Mbit using extended registers, while the 4-byte address mode supports up to 32 Gbit capacity.

4.Low power consumption design

Maximum operating current is 25 mA, suitable for power consumption control in      embedded systems.

Power consumption in sleep mode is as low as 5 µA, extending battery life.

5.Reliability and security

Supports software and hardware write protection, including three 512-byte security registers and one-time programmable (OTP) lock function.

Supports advanced protection mechanisms for blocks/sectors, including solid-state protection and password protection.

Features typical endurance of 100,000 program/erase cycles and 20-year data retention capability to ensure long-term data security.

6.Operating environment and packaging

Supports industrial temperature range (-40°C to +85°C) to adapt to various harsh environments.

Available in multiple packaging options, including 8-pin SOP, WSON, etc., for easy integration in different application scenarios.

Other functions

Supports XIP (Execute In Place) function, allowing code execution directly from the Flash to enhance system efficiency.

Supports both software and hardware reset to ensure quick device recovery in case of exceptions.

Supports JEDEC standard manufacturer and device ID for easy system identification and management.

Applications

BY25Q256FSSIG is suitable for a variety of scenarios that require high-speed, low-power, and high-reliability storage solutions, such as consumer electronics, industrial control, communication equipment, smart home, and automotive electronics.

Summary

With its high data transfer rate, flexible interface modes, low power consumption, and high reliability, BY25Q256FSSIG is an ideal choice for SPI NOR Flash memory in embedded systems.

In addition, as a leading distributor of electronic semiconductors, UCC INDU GmbH is committed to providing customers with comprehensive technical support and high quality services.UCC INDU GmbH has a wealth of industry experience and a professional team to provide customers with a series of product solutions, including the BY25Q256FSSIG, to help customers achieve more efficient and more reliable power electronic system design. For more information or technical support, please contact our team.

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