24LC256T-E/MS

Product Overview

Category

The 24LC256T-E/MS 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

• Non-volatile: The data stored in the 24LC256T-E/MS remains even when power is removed.
• Electrically erasable: The chip allows for easy modification and erasure of stored data.
• High capacity: The 24LC256T-E/MS has a storage capacity of 256 kilobits (32 kilobytes).
• Low power consumption: It operates at low voltage levels, making it suitable for battery-powered devices.
• I2C interface: The chip communicates using the widely-used I2C protocol.

Package

The 24LC256T-E/MS is available in a surface-mount package (MSOP-8), which provides compactness and ease of integration into circuit boards.

Essence

The essence of the 24LC256T-E/MS lies in its ability to store and retrieve data reliably, while offering flexibility for frequent updates or modifications.

Packaging/Quantity

The chip is typically sold in reels or tubes, with each reel containing 2500 units.

Specifications

• Storage Capacity: 256 kilobits (32 kilobytes)
• Operating 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

Pin Configuration

The 24LC256T-E/MS features an 8-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. VSS: Ground
6. NC: No connection
7. NC: No connection
8. VCC: Power supply voltage

Functional Features

• Random access: The chip allows for direct access to any memory location, enabling efficient data retrieval.
• Byte-level read and write operations: Data can be read from or written to the chip at the byte level, providing flexibility in managing stored information.
• Hardware write protection: The optional write-protect pin (WP) can be used to prevent accidental modification of stored data.

Advantages and Disadvantages

Advantages

• High storage capacity
• Easy integration into circuit boards
• Low power consumption
• Reliable data retention
• Flexible read and write operations

Disadvantages

• Limited write endurance (1 million cycles)
• Relatively small package size may require additional space considerations during design

Working Principles

The 24LC256T-E/MS utilizes a floating gate transistor technology to store data. When data is written, an electric charge is trapped in the floating gate, representing a binary value. This charge can be erased by applying a high voltage, allowing the cell to be rewritten with new data.

Detailed Application Field Plans

The 24LC256T-E/MS finds applications in various fields, including:

1. Embedded systems: Used for storing configuration settings, firmware updates, and user data 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, log data, and system configurations.
4. Consumer electronics: Used in devices like smart TVs, set-top boxes, and gaming consoles for storing user preferences, channel lists, and application data.

Detailed and Complete Alternative Models

1. 24LC256: Similar to the 24LC256T-E/MS, but available in a through-hole package (DIP-8).
2. 24LC512: Offers double the storage capacity (512 kilobits) compared to the 24LC256T-E/MS.
3. 24LC1025: Provides even higher storage capacity (1024 kilobits) with extended addressing capabilities.

These alternative models offer similar functionality and can be considered based on specific project requirements.

In conclusion, the 24LC256T-E/MS is a versatile EEPROM chip that offers high-capacity non-volatile data storage with easy modification capabilities. Its compact package, low power consumption, and compatibility with the I2C interface make it suitable for a wide range of applications in various industries.