24AA64T-E/OT

Product Overview

Category

The 24AA64T-E/OT 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: Retains stored data even when power is removed.
• Electrically erasable: Allows for easy modification of stored data.
• Programmable: Can be written and rewritten multiple times.
• High storage capacity: The 24AA64T-E/OT has a capacity of 64 kilobits (8 kilobytes).
• Low power consumption: Operates at low voltage levels, making it suitable for battery-powered devices.

Package

The 24AA64T-E/OT is available in an industry-standard 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of this product lies in its ability to provide reliable and flexible non-volatile data storage in a compact form factor.

Packaging/Quantity

The 24AA64T-E/OT is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory 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 24AA64T-E/OT features the following pin configuration:

1. VCC: Power supply voltage
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 and sequential read modes for flexible data retrieval.
• Page write and byte write modes for efficient data storage.
• Software write protection to prevent accidental modification of stored data.
• Built-in hardware write protection (WP pin) for additional security.
• Self-timed programming cycle for simplified operation.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• Electrically erasable and programmable, allowing for easy updates.
• Compact package size suitable for space-constrained applications.
• Low power consumption extends battery life in portable devices.
• Wide operating voltage range enables compatibility with various systems.

Disadvantages

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

Working Principles

The 24AA64T-E/OT utilizes EEPROM technology, which employs a floating gate transistor structure to store and retrieve data. When data is written, an electric charge is trapped in the floating gate, altering the transistor's behavior. This charge can be removed during the erase process, allowing the transistor to return to its original state. The stored data can be read by applying appropriate voltages to the memory cells.

Detailed Application Field Plans

The 24AA64T-E/OT finds application in various fields, including:

1. Automotive electronics: Used for storing vehicle configuration data, firmware updates, and event logging.
2. Industrial automation: Enables storage of calibration data, device parameters, and production records.
3. Consumer electronics: Utilized for storing user preferences, settings, and firmware updates in devices like smart TVs and home appliances.
4. Medical devices: Used for storing patient data, device configurations, and software updates in medical equipment.

Detailed and Complete Alternative Models

1. 24AA64-I/P: Similar to the 24AA64T-E/OT but available in a DIP (Dual Inline Package) format.
2. 24LC64-I/SN: A compatible alternative from Microchip Technology with similar specifications and functionality.
3. AT24C64AN-10SU-2.7: An alternative from Atmel Corporation offering comparable features and performance.

Note: This is not an exhaustive list, and there may be other alternative models available from different manufacturers.

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