24LC256-I/ST

Product Overview

Category

The 24LC256-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, computers, and consumer electronics.

Characteristics

• Non-volatile: Retains stored data even when power is removed.
• Electrically erasable: Allows for easy modification of stored data.
• High storage capacity: The 24LC256-I/ST has a capacity of 256 kilobits (32 kilobytes).
• Low power consumption: Operates at low voltage levels, making it energy-efficient.
• Fast data transfer: Supports high-speed I2C communication protocol.

Package

The 24LC256-I/ST is available in a small surface-mount package (ST), which facilitates its integration into compact electronic devices.

Essence

The essence of the 24LC256-I/ST lies in its ability to provide reliable and flexible non-volatile data storage in a compact form factor.

Packaging/Quantity

This product 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 supplier.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Interface: I2C (Inter-Integrated Circuit)
• 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

Detailed Pin Configuration

The 24LC256-I/ST features an 8-pin package with 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. VSS: Ground
6. NC: No connection
7. NC: No connection
8. VCC: Power supply voltage

Functional Features

• Random access: Allows reading and writing of individual memory locations.
• Byte-level write: Enables modification of specific bytes without affecting the entire memory.
• Page write: Supports simultaneous programming of multiple bytes within a page, enhancing efficiency.
• Software write protection: The WP pin can be used to protect the memory from accidental writes.
• Sequential read: Facilitates fast retrieval of consecutive memory locations.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even during power loss.
• Easy data modification: Allows for flexible updates without erasing the entire memory.
• Compact form factor: Suitable for space-constrained electronic devices.
• Low power consumption: Energy-efficient operation.
• High-speed data transfer: Supports fast I2C communication protocol.

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 24LC256-I/ST utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It consists of a grid of memory cells that can be individually addressed for reading or writing operations. When data is written, an electrical charge is stored in each memory cell, representing the desired information. This charge can be later retrieved by applying appropriate voltage levels to the memory cells.

Detailed Application Field Plans

The 24LC256-I/ST finds application in various fields, including:

1. Embedded systems: Used for storing configuration data, firmware updates, and user settings in microcontroller-based systems.
2. Automotive electronics: Employed for storing critical information like vehicle identification numbers (VINs), mileage, and calibration data.
3. Industrial automation: Utilized for storing parameters, calibration data, and event logs in programmable logic controllers (PLCs) and industrial control systems.
4. Consumer electronics: Integrated into devices such as smart TVs, set-top boxes, and gaming consoles to store user preferences, channel lists, and application data.

Detailed and Complete Alternative Models

• 24LC512-I/ST: A similar EEPROM chip with double the storage capacity (512 kilobits).
• 24LC1025-I/ST: An EEPROM chip with even higher storage capacity (1 megabit).
• AT24C256C-SSHL-T: An alternative EEPROM chip from a different manufacturer with similar specifications and pin configuration.

Note: The above alternative models are provided for reference and may have slight variations in features and packaging.

In conclusion, the 24LC256-I/ST is a versatile