24AA64XT-I/ST

Product Overview

Category

The 24AA64XT-I/ST belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is commonly used for non-volatile data storage in various electronic devices, such as microcontrollers, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: The stored data remains even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically.
• High density: The 24AA64XT-I/ST offers a storage capacity of 64 kilobits (8 kilobytes).
• Low power consumption: It operates at low voltage levels, making it suitable for battery-powered devices.
• High reliability: The EEPROM technology ensures reliable data retention and endurance.

Package

The 24AA64XT-I/ST is available in a small surface-mount package (ST), which facilitates easy integration into compact electronic designs.

Essence

The essence of this product lies in its ability to provide non-volatile memory storage that can be easily programmed and erased, offering flexibility and reliability to electronic devices.

Packaging/Quantity

The 24AA64XT-I/ST is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Storage Capacity: 64 kilobits (8 kilobytes)
• Interface: I2C (Inter-Integrated Circuit)
• Operating Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 million write cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 24AA64XT-I/ST has a standard 8-pin configuration:

1. VCC: Power supply input
2. SDA: Serial data input/output for I2C communication
3. SCL: Serial clock input for I2C communication
4. WP: Write-protect pin (optional)
5. A0: Address bit 0 (for device addressing)
6. A1: Address bit 1 (for device addressing)
7. A2: Address bit 2 (for device addressing)
8. GND: Ground

Functional Features

• Random access: Allows reading and writing of specific memory locations.
• Byte-level programming: Enables individual byte programming, providing flexibility in data storage.
• Hardware write protection: The WP pin can be used to protect the memory from accidental writes.
• Software write protection: Additional software commands can be used to enable or disable write protection.
• Sequential read operation: Supports sequential reading of multiple memory locations.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even without power supply.
• High reliability: EEPROM technology ensures reliable data retention and endurance.
• Flexible integration: Small package size allows easy integration into various electronic designs.
• Low power consumption: Suitable for battery-powered devices.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Slower write and erase operations compared to volatile memory types.
• Relatively higher cost per unit compared to some other memory options.

Working Principles

The 24AA64XT-I/ST utilizes EEPROM technology, which employs a floating gate transistor structure to store and retrieve data. When data is written, an electrical charge is trapped in the floating gate, altering the transistor's behavior. This charge can be removed during the erase operation, allowing the transistor to return to its original state. The stored data can be accessed by applying appropriate voltage levels to the memory cells.

Detailed Application Field Plans

The 24AA64XT-I/ST finds applications in various fields, including:

1. Automotive electronics: Used for storing configuration data, calibration parameters, and event logs in automotive control units.
2. Industrial automation: Enables non-volatile storage of critical data in programmable logic controllers (PLCs) and industrial sensors.
3. Consumer electronics: Utilized in devices like smart TVs, set-top boxes, and gaming consoles for firmware storage and data logging.
4. Medical devices: Provides reliable storage for patient data, device configurations, and firmware updates in medical equipment.

Detailed and Complete Alternative Models

1. 24AA64-I/P: Similar to the 24AA64XT-I/ST but available in a DIP package instead of surface-mount.
2. 24LC64-I/SN: A compatible alternative from another manufacturer, offering the same capacity and interface.

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