The SST25LF040A-33-4I-S2AE is a 4 Mbit Serial Quad I/O (SQI) Flash memory device manufactured by Silicon Storage Technology (SST). SQI Flash memory provides a high-performance, low-pin-count solution for storing code and data in embedded systems. This device supports standard SPI protocol as well, making it highly versatile. It is designed for applications requiring non-volatile storage with fast read and write access.

Applications

• Embedded Systems
• Microcontroller Firmware Storage
• Data Logging
• Audio Storage
• Industrial Control Systems

Features

• Memory Size: 4 Mbit (512 Kbytes)
• Interface: Serial Quad I/O (SQI) and Standard SPI
• Clock Frequency: Up to 33 MHz
• Supply Voltage: 2.7V to 3.6V
• Operating Temperature: -40°C to +85°C (Industrial)
• Package: 8-Pin SOIC
• Fast Read/Write Performance: Enables quick data access and storage.

Benefits

• High Performance: SQI interface provides faster data transfer rates compared to standard SPI.
• Low Pin Count: Reduces board space and simplifies routing.
• Low Power Consumption: Suitable for battery-powered applications.
• Reliable Storage: Non-volatile memory retains data even when power is off.
• Versatile: Supports both SQI and SPI protocols for flexible integration.

Additional Details

The SST25LF040A-33-4I-S2AE is commonly used in embedded systems for storing firmware, configuration data, and application code. The SQI interface allows for higher throughput compared to traditional SPI, making it suitable for applications requiring fast data access. The device is typically connected to a microcontroller or microprocessor via a serial interface. It supports various commands for reading, writing, and erasing data. The industrial temperature range ensures reliable operation in harsh environments. This flash memory device is also used in data logging applications for storing sensor data and in audio storage applications for storing audio files. The 8-Pin SOIC package allows for easy integration into compact designs.