24LC256T-I/SNG

Product Overview

Category

The 24LC256T-I/SNG 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 stored data remains even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically.
• High storage capacity: The 24LC256T-I/SNG has a capacity of 256 kilobits (32 kilobytes).
• Low power consumption: It operates at low voltage and consumes minimal power.
• I2C interface: The chip communicates using the I2C protocol, allowing easy integration into existing systems.

Package

The 24LC256T-I/SNG is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

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

Packaging/Quantity

The 24LC256T-I/SNG is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Operating Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1,000,000 cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 24LC256T-I/SNG has the following pin configuration:

1. A0: Address Input
2. A1: Address Input
3. A2: Address Input
4. VSS: Ground
5. SDA: Serial Data Input/Output
6. SCL: Serial Clock Input
7. WP: Write Protect Input
8. VCC: Power Supply

Functional Features

• Random access: Allows reading and writing of specific memory locations.
• Byte-level operations: Supports individual byte read and write operations.
• Page write mode: Enables faster data writes by allowing multiple bytes to be written in a single operation.
• Write protection: The WP pin can be used to protect the memory from accidental writes.
• Software-controlled write protection: Provides flexibility in enabling or disabling write operations through software commands.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Ensures data integrity even during power loss.
• Compact form factor: Suitable for space-constrained applications.
• Low power consumption: Ideal for battery-powered devices.
• Easy integration: I2C interface simplifies communication with other components.
• High endurance: Can withstand frequent write cycles.

Disadvantages

• Limited storage capacity: May not be sufficient for applications requiring large amounts of data.
• Relatively slower write speed compared to other memory technologies.
• Vulnerable to electromagnetic interference (EMI) due to its small package size.

Working Principles

The 24LC256T-I/SNG utilizes electrically erasable programmable read-only memory (EEPROM) technology. It consists of a grid of memory cells that can be individually programmed or erased using electrical signals. The chip communicates with the host device through the I2C protocol, allowing for easy data transfer.

During write operations, the chip receives data and stores it in the specified memory location. Reading data involves accessing the desired memory location and retrieving the stored information. The non-volatile nature of EEPROM ensures that the data remains intact even when power is removed.

Detailed Application Field Plans

The 24LC256T-I/SNG finds applications in various fields, including:

1. Embedded Systems: Used for storing configuration data, firmware updates, and user settings in microcontroller-based systems.
2. Industrial Automation: Enables data logging, parameter storage, and system configuration in industrial control systems.
3. Consumer Electronics: Utilized for storing user preferences, calibration data, and device-specific configurations in devices like smart TVs, set-top boxes, and audio equipment.
4. Automotive Electronics: Used for storing critical data such as mileage, fault codes, and vehicle settings in automotive electronic control units (ECUs).
5. Medical Devices: Enables storage of patient data, device settings, and firmware updates in medical equipment.

Detailed and Complete Alternative Models

Some alternative models to the 24LC256T-I/SNG include:

1. AT24C256C-SSHL-T: Similar EEPROM chip with a capacity of 256 kilobits, offered by Microchip Technology Inc.
2. CAT24C256WI-GT3: Electrically erasable memory chip with 256 kilobits capacity, manufactured by ON Semiconductor.
3. M24C256-FMN