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AT24C256B-PU
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AT24C256B-PU

Product Overview

Category

AT24C256B-PU 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 data even when power is disconnected.
  • Electrically erasable: Allows for easy modification of stored data.
  • High storage capacity: The AT24C256B-PU has a capacity of 256 kilobits (32 kilobytes).
  • Low power consumption: Operates at low voltage levels, making it energy-efficient.
  • High reliability: Offers robust performance and long-term data retention.

Package

The AT24C256B-PU comes in an 8-pin DIP (Dual Inline Package) format.

Essence

This EEPROM chip is designed to provide reliable and flexible data storage capabilities for electronic devices.

Packaging/Quantity

The AT24C256B-PU is typically packaged in tubes or trays, with quantities varying based on customer requirements.

Specifications

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

Detailed Pin Configuration

The AT24C256B-PU features the following pin configuration:

  1. A0: Address Input
  2. A1: Address Input
  3. A2: 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 and sequential read modes for flexible data access.
  • Byte-wise and page-wise write operations for efficient memory utilization.
  • Software write protection to prevent accidental modification of stored data.
  • Built-in hardware write protection pin (WP) for additional security.

Advantages and Disadvantages

Advantages

  • High storage capacity allows for ample data storage in various applications.
  • Low power consumption ensures energy efficiency.
  • Reliable performance and long-term data retention.
  • Flexible data access and write operations provide versatility.

Disadvantages

  • Limited write cycle endurance may require careful management in high-write applications.
  • Slightly higher cost compared to other non-volatile memory options.

Working Principles

The AT24C256B-PU utilizes the I2C interface to communicate with the host device. It stores data in a grid of memory cells that can be electrically programmed and erased. The chip operates by sending and receiving signals through the SDA and SCL pins, enabling data transfer between the host device and the EEPROM.

Detailed Application Field Plans

The AT24C256B-PU finds application in various fields, including: 1. Microcontroller-based systems requiring non-volatile data storage. 2. Industrial automation for storing configuration parameters and calibration data. 3. Consumer electronics, such as smart TVs and set-top boxes, for storing user preferences and settings. 4. Automotive electronics, including engine control units and infotainment systems, for data storage and firmware updates.

Detailed and Complete Alternative Models

Some alternative models to the AT24C256B-PU include: - AT24C01A - AT24C02 - AT24C04 - AT24C08 - AT24C16 - AT24C32 - AT24C64 - AT24C128

These models offer varying storage capacities to suit different application requirements.

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技術ソリューションにおける AT24C256B-PU の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of AT24C256B-PU in technical solutions:

  1. Q: What is the AT24C256B-PU? A: The AT24C256B-PU is a 256-kilobit (32,768 x 8) electrically erasable programmable read-only memory (EEPROM) chip.

  2. Q: What is the operating voltage range for the AT24C256B-PU? A: The AT24C256B-PU operates within a voltage range of 1.7V to 5.5V.

  3. Q: How can I interface with the AT24C256B-PU? A: The AT24C256B-PU uses an I2C (Inter-Integrated Circuit) interface, allowing easy communication with microcontrollers and other devices.

  4. Q: What is the storage capacity of the AT24C256B-PU? A: The AT24C256B-PU has a storage capacity of 256 kilobits, which is equivalent to 32 kilobytes.

  5. Q: Can I write data to the AT24C256B-PU multiple times? A: Yes, the AT24C256B-PU supports both random and sequential writes, allowing you to update or modify data as needed.

  6. Q: What is the typical write endurance of the AT24C256B-PU? A: The AT24C256B-PU has a typical write endurance of 1 million cycles, meaning you can write data to it approximately 1 million times before it may start to degrade.

  7. Q: Is the AT24C256B-PU capable of retaining data without power? A: Yes, the AT24C256B-PU has built-in EEPROM technology that allows it to retain data even when power is disconnected.

  8. Q: Can I use the AT24C256B-PU in industrial environments? A: Yes, the AT24C256B-PU is designed to operate reliably in a wide temperature range (-40°C to +85°C) and can be used in various industrial applications.

  9. Q: Are there any security features in the AT24C256B-PU? A: The AT24C256B-PU does not have built-in security features such as hardware encryption or password protection. Additional measures may be required for securing sensitive data.

  10. Q: What are some common applications of the AT24C256B-PU? A: The AT24C256B-PU is commonly used in applications such as data logging, configuration storage, device identification, and storing calibration data in various electronic systems.

Please note that these answers are general and may vary depending on specific implementation details and requirements.