AT25040A-10TU-1.8

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 AT25040A-10TU-1.8 is a serial EEPROM IC that provides non-volatile data storage capabilities in various electronic devices.

Packaging/Quantity: The AT25040A-10TU-1.8 is typically sold in reels, with each reel containing 2,000 units.

Specifications

• Memory Size: 4 Kilobits (512 bytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 1.8V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 million cycles
• Data Retention: 100 years

Detailed Pin Configuration

The AT25040A-10TU-1.8 features an 8-pin SOIC package with the following pin configuration:

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) - Receives data from the microcontroller.
4. Serial Data Output (SO) - Transmits data to the microcontroller.
5. Write Protect (/WP) - Allows or prevents write operations.
6. VCC - Power supply voltage (1.8V).
7. Ground (GND) - Common ground reference.
8. Hold (/HOLD) - Suspends serial communication temporarily.

Functional Features

• Byte and Page Write Operations: Allows data to be written in individual bytes or in larger page sizes.
• Sequential Read Operation: Enables sequential reading of data from the memory.
• Software Protection: Provides write protection by using a software command.
• Hardware Protection: Utilizes a write protect pin (/WP) for hardware-level protection.
• Self-Timed Programming Cycle: Automatically manages programming and erase operations.

Advantages and Disadvantages

Advantages: - Compact size and low power consumption make it suitable for portable devices. - High reliability ensures data integrity over extended periods. - Easy integration with microcontrollers through the SPI interface. - Wide operating temperature range allows usage in various environments.

Disadvantages: - Limited storage capacity compared to other memory technologies. - Slower write and erase speeds compared to some alternative models. - Vulnerable to electromagnetic interference (EMI) due to its small form factor.

Working Principles

The AT25040A-10TU-1.8 operates based on the principles of EEPROM technology. It utilizes floating gate transistors to store and retrieve data. When writing, an electric charge is applied to the floating gate, altering its electrical characteristics. This change can be detected during read operations, allowing stored data to be retrieved.

Detailed Application Field Plans

The AT25040A-10TU-1.8 finds applications in various electronic devices that require non-volatile data storage, such as: - Consumer electronics (e.g., smartphones, tablets) - Automotive systems (e.g., infotainment, engine control units) - Industrial equipment (e.g., sensors, control systems) - Medical devices (e.g., patient monitoring, diagnostic equipment)

Detailed and Complete Alternative Models

Some alternative models to the AT25040A-10TU-1.8 include: - AT25080A-10TU-1.8: 8 Kilobits (1 Kilobyte) memory size, same package and characteristics. - AT25160A-10TU-1.8: 16 Kilobits (2 Kilobytes) memory size, same package and characteristics. - AT25320A-10TU-1.8: 32 Kilobits (4 Kilobytes) memory size, same package and characteristics.

These alternative models provide increased storage capacity while maintaining similar specifications and compatibility.

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