Overview

The AT45D081A is an 8-megabit DataFlash memory device from Atmel (now Microchip Technology). It features a serial interface and is designed for storing data in a variety of applications. The "-TI" suffix likely refers to a specific temperature range or package type. It's a non-volatile memory solution, retaining data even when power is removed.

Applications

• Data logging systems for storing sensor readings and other data.
• Audio storage for voice recorders and similar devices.
• Image storage in digital cameras and other imaging equipment.
• Embedded systems requiring non-volatile data storage.
• Configuration storage for programmable logic devices (PLDs) and microcontrollers.

Features

• 8-megabit (1024K x 8) memory array.
• Serial Peripheral Interface (SPI) for communication.
• Low power consumption.
• Page size: 256 bytes.
• Two SRAM data buffers, each 256 bytes.
• Internal program and erase cycles.
• Self-timed write cycle.
• Hardware and software data protection features.
• Advanced Sector Protection.
• Endurance: 100,000 write cycles per page.

Benefits

• Non-volatile storage ensures data retention without power.
• SPI interface simplifies integration with microcontrollers and other systems.
• Low power consumption extends battery life in portable devices.
• SRAM buffers allow for fast data transfer and manipulation.
• Hardware and software protection prevent accidental data corruption.
• High endurance allows for frequent write cycles without data loss.

Additional Details

The AT45D081A communicates via the SPI bus, enabling simple interfacing with a wide range of microcontrollers. The internal SRAM buffers enhance write performance by allowing data to be temporarily stored before being written to the flash memory array. The device incorporates features to protect against accidental program or erase operations. The 256-byte page size affects the granularity of write operations. The SPI modes supported determine the clocking polarity and phase used for communication. The operating voltage range is a crucial parameter for ensuring compatibility with the host system. The temperature range (indicated by the "-TI" suffix) specifies the acceptable operating temperature for the device. The Data Sheet will clearly define the clock speeds, timing characteristics, voltage ranges, package types, and temperature ranges.