24LC64T-I/OT

Product Overview

Category

The 24LC64T-I/OT belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Electrically erasable: The 24LC64T-I/OT allows for easy erasure and reprogramming of data.
• Non-volatile: The stored data remains intact even when power is removed.
• High storage capacity: This chip has a capacity of 64 kilobits (8 kilobytes).
• Low power consumption: It operates at low voltage levels, making it energy-efficient.
• I2C interface: The chip communicates using the widely-used I2C protocol.
• Small form factor: The chip is available in a compact SOT-23 package.

Package and Quantity

The 24LC64T-I/OT is packaged in a surface-mount SOT-23 package. It is typically sold in reels or tubes, with quantities varying depending on the supplier.

Specifications

• Memory capacity: 64 kilobits (8 kilobytes)
• Supply voltage: 1.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: 1 million write cycles
• Data retention: Up to 200 years
• Communication interface: I2C (Two-wire serial interface)

Pin Configuration

The 24LC64T-I/OT has a total of 8 pins, which are assigned specific functions:

1. VCC: Power supply input
2. SDA: Serial data line for I2C communication
3. SCL: Serial clock line 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 reference

Functional Features

• Random access: The chip allows for direct read and write operations to specific memory locations.
• Byte-level operations: Data can be written or read in individual bytes, allowing for efficient data manipulation.
• Hardware write protection: The optional write-protect pin (WP) can be used to prevent accidental modification of stored data.
• Sequential read mode: The chip supports sequential reading of multiple memory locations, reducing access time.

Advantages and Disadvantages

Advantages

• High storage capacity for its compact size
• Low power consumption
• Easy integration with I2C-compatible devices
• Reliable data retention and endurance
• Cost-effective solution for non-volatile data storage

Disadvantages

• Limited write endurance compared to other memory technologies
• Slower write speed compared to volatile memory types
• Requires additional circuitry for I2C communication

Working Principles

The 24LC64T-I/OT utilizes a floating-gate transistor structure to store 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 erasure process, allowing the transistor to return to its original state. The I2C interface facilitates communication between the chip and the controlling device, enabling data transfer and memory operations.

Application Field Plans

The 24LC64T-I/OT finds applications in various fields, including:

1. Embedded systems: Used for storing configuration data, firmware updates, and user settings in microcontroller-based systems.
2. Automotive electronics: Enables data storage for vehicle diagnostics, infotainment systems, and sensor calibration.
3. Industrial automation: Provides non-volatile memory for storing critical parameters, such as machine settings and production data.
4. Consumer electronics: Used in devices like smart TVs, set-top boxes, and gaming consoles for storing user preferences and system data.

Alternative Models

Several alternative models with similar functionality are available in the market. Some notable alternatives to the 24LC64T-I/OT include:

1. AT24C64 - Manufactured by Microchip Technology Inc.
2. CAT24C64 - Produced by ON Semiconductor
3. M24C64 - Offered by STMicroelectronics

These alternative models provide comparable storage capacity, interface compatibility, and performance characteristics.

In conclusion, the 24LC64T-I/OT is a versatile EEPROM chip that offers high storage capacity, low power consumption, and easy integration with I2C-based systems. Its compact size and reliable performance make it suitable for a wide range of applications in various industries.

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