The AT45DB011D-SH is a 1-Megabit, 2.5-Volt Serial DataFlash memory, manufactured by Atmel (now Microchip Technology). This device features a serial interface, allowing for efficient data transfer with minimal pin count, and is organized as 512 pages of 264 bytes each. It operates at a low voltage of 2.5V, making it suitable for power-sensitive applications. The 'SH' suffix usually designates a specific package or temperature range. The DataFlash architecture provides high endurance and data retention capabilities.

Applications

• Data logging in embedded systems
• Audio storage and playback
• Image storage
• Firmware storage and updating
• Configuration data storage in industrial equipment

Features

• Memory array: 1,048,576 bits (1 Mbit)
• Organization: 512 pages x 264 bytes
• SPI Compatible Serial Interface
• Low Voltage Operation: 2.5V
• High-Speed Clock Frequency: Up to 66 MHz
• Two SRAM Data Buffers (264 Bytes each)
• Page Erase/Write Protection
• Low Power Consumption
• Endurance: 100,000 Program/Erase Cycles
• Data Retention: 20 years

Benefits

• Simplified interfacing with microcontrollers using SPI serial interface
• Low voltage operation suitable for battery-powered devices
• High speed clock frequency for fast data transfer
• Dual SRAM buffers enhance data throughput and efficiency
• Page erase/write protection safeguards against accidental data corruption
• High endurance and data retention for reliable long-term storage

Technical Specifications

The AT45DB011D-SH uses a standard SPI (Serial Peripheral Interface) for communication. It includes features such as page write, page erase, and sector erase. The device also has built-in power management features to minimize power consumption in standby mode. It is typically available in small outline packages like SOIC and TSSOP. The operating temperature range is typically -40°C to +85°C (industrial grade).