AT25256AW-10SU-2.7

Overview

Product Category

AT25256AW-10SU-2.7 belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) integrated circuits.

Use

This product is commonly used for non-volatile data storage in various electronic devices such as microcontrollers, digital cameras, and automotive systems.

Characteristics

• Non-volatile memory: The AT25256AW-10SU-2.7 retains stored data even when power is removed.
• High storage capacity: This EEPROM has a capacity of 256 kilobits (32 kilobytes).
• Serial interface: It utilizes a serial communication protocol for data transfer.
• Low power consumption: The AT25256AW-10SU-2.7 operates at low power levels, making it suitable for battery-powered devices.

Package and Quantity

The AT25256AW-10SU-2.7 is available in a small form-factor package, typically a surface-mount SOIC (Small Outline Integrated Circuit). It is supplied in reels or tubes containing multiple units.

Specifications

• Operating voltage: 2.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: 1 million cycles
• Data retention: 100 years
• Interface: SPI (Serial Peripheral Interface)
• Clock frequency: Up to 10 MHz

Pin Configuration

The AT25256AW-10SU-2.7 features an 8-pin package with the following pin configuration:

┌───┬───┐ │ 1 │ 8 │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ └───┴───┘

Pin Description: 1. Chip Select (CS): Used to enable or disable the device for communication. 2. Serial Clock (SCK): Provides the clock signal for data transfer. 3. Serial Data Input (SI): Transfers data from the microcontroller to the EEPROM. 4. Serial Data Output (SO): Transfers data from the EEPROM to the microcontroller. 5. Write Protect (WP): Allows write protection of the memory contents. 6. VCC: Power supply voltage. 7. Ground (GND): Common ground reference. 8. Hold (HOLD): Suspends ongoing operations temporarily.

Functional Features

• Byte-level Read and Write: The AT25256AW-10SU-2.7 allows individual byte read and write operations, providing flexibility in data manipulation.
• Sequential Read: It supports sequential read operations, enabling efficient retrieval of consecutive data bytes.
• Software Protection: The write protect feature prevents accidental modification of stored data.
• High-Speed Performance: With a clock frequency of up to 10 MHz, this EEPROM offers fast data transfer rates.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• Compact package size enables integration into space-constrained designs.
• Low power consumption extends battery life in portable devices.
• High endurance and long data retention make it reliable for various applications.
• Serial interface simplifies connectivity with microcontrollers.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Slower write speeds compared to volatile memory types.
• Susceptible to electromagnetic interference due to its small form factor.

Working Principles

The AT25256AW-10SU-2.7 utilizes an electrically erasable floating-gate transistor technology. It stores data by trapping electrical charges in the floating gate, which can be selectively removed or injected using voltage pulses. The stored charge determines the logic state of each memory cell, allowing for non-volatile data storage.

Application Field Plans

The AT25256AW-10SU-2.7 finds applications in various fields, including: 1. Embedded Systems: Used for firmware storage in microcontrollers and IoT devices. 2. Automotive Electronics: Employed for storing configuration data and event logs in automotive systems. 3. Consumer Electronics: Utilized in digital cameras, set-top boxes, and smart home devices for data storage. 4. Industrial Automation: Integrated into control systems for storing calibration data and configuration parameters.

Alternative Models

Several alternative models with similar specifications and functionality are available in the market. Some notable alternatives to the AT25256AW-10SU-2.7 include: - Microchip 25AA256 - STMicroelectronics M95256 - Winbond W25Q256

These alternatives offer comparable performance and compatibility, providing options for different design requirements.

In conclusion, the AT25256AW-10SU-2.7 is a serial EEPROM integrated circuit