The AT45DB021D-SH-SL954 is a 2-Megabit Serial DataFlash memory from Atmel. It is designed for applications requiring non-volatile storage with a simple serial interface. This DataFlash memory provides a cost-effective solution for storing data in embedded systems. Its serial interface simplifies PCB layout and reduces the number of microcontroller I/O pins required. It is often found in legacy systems as it is an END-OF-LIFE product.

Applications:

• Data logging
• Audio storage
• Configuration storage
• Embedded systems
• Industrial control

Features:

• 2-Megabit Serial DataFlash
• SPI Compatible Serial Interface
• Low Power Consumption
• Single 2.7V to 3.6V Power Supply
• Page Erase and Write

Benefits:

• Non-volatile storage
• Simple serial interface
• Reduced pin count
• Low power operation
• Easy integration with microcontrollers

Additional Details:

The AT45DB021D-SH-SL954 typically comes in an SOIC package. Key electrical characteristics include supply voltage (VCC), clock frequency, and power consumption. The SPI interface allows for easy communication with microcontrollers. Given its END-OF-LIFE status, consider alternative flash memory solutions for new designs. Detailed specifications are available in the Atmel datasheet.