AT24C256B-TH-B

Product Overview

Category

AT24C256B-TH-B 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: The stored data remains even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically.
• High capacity: The AT24C256B-TH-B has a storage capacity of 256 kilobits (32 kilobytes).
• Low power consumption: It operates on low power supply voltages, making it suitable for battery-powered devices.

Package

The AT24C256B-TH-B is available in a small surface-mount package.

Essence

The essence of this product lies in its ability to provide reliable and long-term data storage in electronic systems.

Packaging/Quantity

The AT24C256B-TH-B is typically packaged in reels or tubes, with a quantity of 2500 units per reel.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Interface: I2C (Two-wire Serial Interface)
• Operating Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Cycle Endurance: 1 million cycles
• Data Retention: 100 years

Detailed Pin Configuration

The AT24C256B-TH-B has 8 pins, which are assigned specific functions:

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

Functional Features

• Random Access: Allows reading and writing of data at any memory location.
• Page Write: Enables the simultaneous programming of multiple bytes within a single write operation.
• Software Write Protection: Provides a write protection mechanism to prevent accidental modification of stored data.
• Hardware Write Protection: Allows external control of write protection using the WP pin.

Advantages and Disadvantages

Advantages

• High storage capacity
• Low power consumption
• Reliable and long-term data retention
• Small form factor
• Easy integration with I2C interface

Disadvantages

• Limited write cycle endurance
• Relatively slower write speed compared to other memory technologies

Working Principles

The AT24C256B-TH-B utilizes electrically erasable programmable read-only memory (EEPROM) technology. It stores data in a grid of memory cells, which can be individually programmed or erased using electrical signals. The I2C interface allows for easy communication with the host device, enabling read and write operations.

Detailed Application Field Plans

The AT24C256B-TH-B finds applications in various fields, including:

1. Embedded Systems: Used for storing configuration data, firmware updates, and user settings in microcontrollers and IoT devices.
2. Automotive Electronics: Employed for storing critical data, such as vehicle identification numbers (VINs), mileage, and diagnostic information.
3. Consumer Electronics: Utilized in devices like smart TVs, set-top boxes, and digital cameras for storing user preferences, channel lists, and image data.
4. Industrial Automation: Applied in industrial control systems for storing calibration data, production parameters, and event logs.

Detailed and Complete Alternative Models

1. AT24C01A: 1 kilobit (128 bytes) capacity, compatible with I2C interface.
2. AT24C04: 4 kilobits (512 bytes) capacity, offers additional hardware write protection features.
3. AT24C512C: 512 kilobits (64 kilobytes) capacity, higher storage density for more demanding applications.

These alternative models provide a range of options based on different memory capacities and additional features.

In conclusion, the AT24C256B-TH-B is an electrically erasable programmable read-only memory (EEPROM) chip that offers high capacity, low power consumption, and reliable data storage. It finds applications in various fields, including embedded systems, automotive electronics, consumer electronics, and industrial automation. Alternative models with varying capacities and features are available to suit different requirements.