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AT25SF321B-SSHB-T

RENAT25SF321B-SSHB-T

Renesas Electronics Corporation
FLASH - NOR Memory IC 32Mbit SPI - Quad I/O 108 MHz 8-SOIC
Active13,618 in stock
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Overview

The AT25SF321B-SSHB-T is a 32Mbit (4M x 8) Serial NOR Flash memory IC manufactured by Renesas. It features a SPI - Quad I/O interface operating at up to 108 MHz. This non-volatile memory solution is designed for applications requiring high-speed data access and reliable storage in a compact 8-SOIC package.

Why Choose This Part

This NOR Flash offers robust data integrity with 100,000 program and erase cycles and 20 years of data retention. Its high-speed 108 MHz SPI with Quad I/O supports fast boot times and efficient data transfer. The part includes memory protection features and security registers, enhancing system reliability and data security.

Applications

Embedded System Boot Memory
Provides reliable storage for microcontroller boot code and configuration data, ensuring fast system startup due to its 108 MHz clock frequency and Quad I/O SPI interface.
Data Logging
Suitable for storing sensor data, event logs, or other application-specific data in systems like industrial controls, medical devices, or smart home products, leveraging its 32Mbit capacity and data retention of 20 years.
Firmware Updates (FOTA)
Serves as a dedicated storage for firmware images, enabling over-the-air (FOTA) updates in IoT devices or other connected systems, supported by its 100,000 program/erase cycles endurance.
Configuration Storage
Stores device settings, calibration parameters, and user preferences in various electronic products, benefiting from memory protection features to prevent accidental corruption.
Code Shadowing
Enables faster execution of frequently accessed code by shadowing it from the serial flash into faster RAM, a common technique in systems with performance-critical operations.

Key Specifications

Technology FLASH - NOR
Memory Size 32Mbit
Memory Type Non-Volatile
Memory Format FLASH
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Clock Frequency 108 MHz
Memory Interface SPI - Quad I/O
Voltage - Supply 2.7V ~ 3.6V
Memory Organization 4M x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 50us, 3ms

Getting Started

To get started with the AT25SF321B-SSHB-T, integrate it into your PCB design, ensuring proper SPI connections and power supply (2.7V to 3.6V). Most microcontrollers with an SPI peripheral can interface with this device. Utilize the provided datasheets for detailed command sets for read, write, and erase operations. Debugging can typically be done using standard in-circuit debuggers and IDEs supporting your chosen microcontroller.

Also Consider

W25Q32JVSSIQ Winbond Electronics Corporation - This is a similar 32Mbit Serial NOR Flash memory with SPI - Quad I/O, offering an alternative from a different manufacturer.
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