AT24C256W-10SC

Product Overview

Category

AT24C256W-10SC belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Electrically erasable: The AT24C256W-10SC can be erased and reprogrammed electrically, making it convenient for updating stored data.
• High storage capacity: With a capacity of 256 kilobits (32 kilobytes), this chip offers ample space for storing critical information.
• Low power consumption: The AT24C256W-10SC operates on low power, making it suitable for battery-powered devices.
• Wide operating voltage range: This chip can function within a voltage range of 1.7V to 5.5V, providing flexibility in different applications.

Package

The AT24C256W-10SC is available in an industry-standard 8-pin small outline integrated circuit (SOIC) package.

Essence

This EEPROM chip allows for reliable and non-volatile storage of data, ensuring that important information is retained even when power is lost.

Packaging/Quantity

The AT24C256W-10SC is typically sold in reels or tubes, with each reel containing 2,500 units.

Specifications

• Memory capacity: 256 kilobits (32 kilobytes)
• Operating voltage: 1.7V to 5.5V
• Maximum clock frequency: 1 MHz
• Write cycle time: 10 ms (maximum)
• Data retention: 100 years (minimum)

Detailed Pin Configuration

The AT24C256W-10SC features the following pin configuration:

1. A0: Chip address input pin
2. A1: Chip address input pin
3. A2: Chip address input pin
4. GND: Ground connection
5. SDA: Serial data input/output pin
6. SCL: Serial clock input pin
7. WP: Write protect pin
8. VCC: Power supply voltage

Functional Features

• Random access: The AT24C256W-10SC allows for random access to any memory location, enabling efficient data retrieval.
• Sequential read and write: This chip supports sequential read and write operations, facilitating the storage and retrieval of data in a structured manner.
• Hardware write protection: The WP pin can be used to protect the stored data from accidental modification by disabling write operations.

Advantages and Disadvantages

Advantages

• High storage capacity
• Low power consumption
• Wide operating voltage range
• Electrically erasable and reprogrammable

Disadvantages

• Relatively slow write cycle time compared to some other EEPROM chips
• Limited maximum clock frequency

Working Principles

The AT24C256W-10SC utilizes an electrically controlled floating gate to store and retrieve data. When data is written, charges are trapped in the floating gate, altering the threshold voltage of the memory cell. These charges can be removed during the erase operation, allowing the cell to be rewritten with new data.

Detailed Application Field Plans

The AT24C256W-10SC finds applications in various fields, including:

1. Microcontrollers: Used for storing program code, configuration settings, and calibration data.
2. Computers: Employed in BIOS chips, expansion cards, and other peripherals requiring non-volatile storage.
3. Consumer electronics: Integrated into devices such as smart TVs, set-top boxes, and digital cameras for data storage purposes.

Detailed and Complete Alternative Models

1. AT24C01A: 1 kilobit (128 bytes) EEPROM chip.
2. AT24C64: 64 kilobit (8 kilobytes) EEPROM chip.
3. AT24CM02: 2 megabit (256 kilobytes) EEPROM chip.

These alternative models offer different storage capacities to suit specific application requirements.

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