The AT45DB161D is a 16-Megabit, 2.7-Volt Serial DataFlash memory manufactured by Atmel. It features a serial interface and is organized as 8192 pages of 528 bytes each. It offers a low voltage operation of 2.7V and high-speed clock frequency, making it suitable for portable and embedded applications requiring significant non-volatile storage. The DataFlash architecture provides high endurance and data retention capabilities.

Applications

• Data logging in portable devices
• Audio and video storage
• Image storage in digital cameras
• Firmware storage and over-the-air updates
• Embedded systems requiring non-volatile storage

Features

• Memory array: 16,777,216 bits (16 Mbit)
• Organization: 8192 pages x 528 bytes
• SPI Compatible Serial Interface
• Low Voltage Operation: 2.7V
• High-Speed Clock Frequency: Up to 66 MHz
• Two SRAM Data Buffers (528 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 for battery-powered applications
• High speed clock frequency enables rapid data transfer
• Dual SRAM buffers enhance data throughput and efficiency
• Page erase/write protection prevents accidental data corruption
• High endurance and data retention for long-term reliability

Technical Specifications

The AT45DB161D uses a standard SPI (Serial Peripheral Interface) for communication. It features page write, page erase, and sector erase operations. The device includes power-saving features to minimize power consumption in standby mode. It is typically available in surface-mount packages like SOIC, TSSOP, and VDFPN. The operating temperature range is generally -40°C to +85°C (industrial grade).