AT25040AY1-10YI-2.7

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Data Storage

Characteristics: - Non-volatile memory - Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) - Low power consumption - High reliability - Small form factor

Package: 8-pin SOIC (Small Outline Integrated Circuit)

Essence: The AT25040AY1-10YI-2.7 is a serial EEPROM IC that provides non-volatile data storage capabilities in various electronic devices.

Packaging/Quantity: The AT25040AY1-10YI-2.7 is typically sold in reels containing 2500 units.

Specifications

• Memory Size: 4 Kilobits (512 bytes)
• Interface: SPI (Serial Peripheral Interface)
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 million cycles
• Data Retention: 100 years

Detailed Pin Configuration

The AT25040AY1-10YI-2.7 features an 8-pin SOIC package with the following pin configuration:

1. Chip Select (/CS) - Active low input used to enable communication with the IC.
2. Serial Clock (SCK) - Input for synchronizing data transfer.
3. Serial Data Input (SI) - Input for transferring data from the microcontroller to the IC.
4. Serial Data Output (SO) - Output for transferring data from the IC to the microcontroller.
5. Write Protect (/WP) - Input for write protection, when held low, prevents write operations.
6. VCC - Power supply input (+2.7V to +5.5V).
7. Ground (GND) - Ground reference.
8. Hold (/HOLD) - Input used to pause serial communication without deselecting the IC.

Functional Features

• Byte and Page Write Operations: Allows individual byte or page (up to 32 bytes) write operations.
• Sequential Read: Supports sequential read operations for faster data retrieval.
• Software Protection: Provides software protection by enabling write protection using the /WP pin.
• Hardware Protection: Offers hardware protection by providing a write-protect feature that can be permanently enabled.
• Self-timed Erase and Write Cycles: Automatically manages erase and write cycles, simplifying the programming process.

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures data retention even during power loss. - Low power consumption makes it suitable for battery-powered devices. - High reliability with 1 million write endurance cycles. - Small form factor allows integration into compact electronic designs.

Disadvantages: - Limited storage capacity of 4 Kilobits may not be sufficient for certain applications. - Slower write speed compared to other types of memory.

Working Principles

The AT25040AY1-10YI-2.7 operates based on the principles of EEPROM technology. It utilizes electrically controlled floating gate transistors to store and retrieve data. The IC communicates with a microcontroller through the SPI interface, enabling read and write operations. Data is stored in non-volatile memory cells, ensuring data retention even when power is removed.

Detailed Application Field Plans

The AT25040AY1-10YI-2.7 finds application in various electronic devices requiring non-volatile data storage. Some common application fields include:

1. Consumer Electronics: Used in smart TVs, set-top boxes, and audio systems for storing configuration settings and user preferences.
2. Automotive: Employed in automotive electronics for storing critical data such as mileage, service history, and vehicle settings.
3. Industrial Control Systems: Utilized in industrial control systems for storing calibration data, device configurations, and firmware updates.
4. Medical Devices: Integrated into medical devices to store patient information, device settings, and usage logs.

Detailed and Complete Alternative Models

1. AT25080AY1-10YI-2.7: Similar to AT25040AY1-10YI-2.7 but with double the memory size (8 Kilobits).
2. AT25160AY1-10YI-2.7: Offers increased storage capacity of 16 Kilobits.
3. AT25320AY1-10YI-2.7: Provides even higher memory size of 32 Kilobits.

These alternative models offer expanded storage capabilities while maintaining similar characteristics and functionality as the AT25040AY1-10YI-2.7.

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