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AT24C256BN-SH-B
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AT24C256BN-SH-B

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Non-volatile Electrically Erasable Programmable Read-Only Memory (EEPROM)
  • Characteristics: High-density, low-power, serial EEPROM
  • Package: 8-lead SOIC (Small Outline Integrated Circuit)
  • Essence: Stores and retrieves digital information even when power is removed
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Memory Size: 256 kilobits (32 kilobytes)
  • Interface: I2C (Inter-Integrated Circuit) compatible
  • Operating Voltage: 1.7V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Write Cycle Time: 5 milliseconds (typical)
  • Data Retention: 100 years (minimum)

Pin Configuration

The AT24C256BN-SH-B has 8 pins arranged as follows:

```

| | | 1 2 3 4 5 | | | | 6 7 8 | |_______________| ```

  1. A0: Address Input 0
  2. A1: Address Input 1
  3. A2: Address Input 2
  4. GND: Ground
  5. SDA: Serial Data
  6. SCL: Serial Clock
  7. WP: Write Protect
  8. VCC: Power Supply

Functional Features

  • High-density memory storage
  • Low power consumption
  • Serial communication interface for easy integration
  • Built-in write protection mechanism
  • Reliable data retention even in harsh environments

Advantages

  • Large memory capacity for storing a significant amount of data
  • Low power consumption extends battery life in portable devices
  • Compact package size allows for space-efficient designs
  • Easy integration with microcontrollers and other ICs
  • Reliable data retention ensures long-term storage of critical information

Disadvantages

  • Slower write cycle time compared to some other memory technologies
  • Limited endurance for write operations (typically around 1 million cycles)
  • Higher cost per bit compared to larger capacity memory devices

Working Principles

The AT24C256BN-SH-B is based on Electrically Erasable Programmable Read-Only Memory (EEPROM) technology. It uses a floating-gate transistor structure to store digital information. The memory cells can be electrically programmed and erased, allowing data to be written and rewritten multiple times. The I2C interface enables easy communication with the device, making it suitable for various applications.

Application Field Plans

The AT24C256BN-SH-B is widely used in various electronic systems that require non-volatile memory storage. Some potential application fields include:

  1. Consumer Electronics: Used in smart TVs, set-top boxes, and audio/video equipment for configuration and firmware storage.
  2. Automotive: Used in automotive electronics for storing vehicle settings, sensor calibration data, and event logging.
  3. Industrial Control Systems: Used in programmable logic controllers (PLCs), industrial automation equipment, and data loggers.
  4. Medical Devices: Used in medical equipment for storing patient data, device configurations, and firmware updates.
  5. Internet of Things (IoT): Used in IoT devices for storing sensor data, device parameters, and network settings.

Alternative Models

  • AT24C01A
  • AT24C02
  • AT24C04
  • AT24C08
  • AT24C16
  • AT24C32
  • AT24C64
  • AT24C128
  • AT24C256
  • AT24C512

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

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de AT24C256BN-SH-B en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of AT24C256BN-SH-B in technical solutions:

  1. Q: What is AT24C256BN-SH-B? A: AT24C256BN-SH-B is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chip with a capacity of 256 kilobits (32 kilobytes). It is commonly used for storing small amounts of non-volatile data in various electronic devices.

  2. Q: What is the operating voltage range of AT24C256BN-SH-B? A: The operating voltage range of AT24C256BN-SH-B is typically between 1.7V and 5.5V, making it compatible with a wide range of microcontrollers and other digital systems.

  3. Q: How is AT24C256BN-SH-B connected to a microcontroller? A: AT24C256BN-SH-B uses an I2C (Inter-Integrated Circuit) interface for communication with a microcontroller. It requires two lines - SDA (Serial Data) and SCL (Serial Clock) - to establish communication.

  4. Q: What is the maximum clock frequency supported by AT24C256BN-SH-B? A: AT24C256BN-SH-B supports a maximum clock frequency of 1 MHz, allowing for relatively fast data transfer between the microcontroller and the EEPROM.

  5. Q: Can AT24C256BN-SH-B be used for both read and write operations? A: Yes, AT24C256BN-SH-B supports both read and write operations. It allows you to store and retrieve data as needed.

  6. Q: How many bytes can be stored in AT24C256BN-SH-B? A: AT24C256BN-SH-B has a capacity of 32 kilobytes, which means it can store up to 32,768 bytes of data.

  7. Q: Is AT24C256BN-SH-B suitable for applications requiring frequent data updates? A: While AT24C256BN-SH-B supports write operations, it is not ideal for applications that require frequent data updates due to its limited endurance (number of write cycles). It is better suited for storing configuration or calibration data that doesn't change frequently.

  8. Q: Can multiple AT24C256BN-SH-B chips be connected together in a system? A: Yes, multiple AT24C256BN-SH-B chips can be connected together in a system by assigning unique I2C addresses to each chip. This allows for increased storage capacity if needed.

  9. Q: Does AT24C256BN-SH-B have built-in security features? A: No, AT24C256BN-SH-B does not have built-in security features such as hardware encryption or password protection. If data security is a concern, additional measures need to be implemented at the software or system level.

  10. Q: What are some common applications of AT24C256BN-SH-B? A: AT24C256BN-SH-B is commonly used in various technical solutions, including but not limited to data logging systems, industrial automation, smart meters, medical devices, and automotive electronics, where non-volatile storage of small amounts of data is required.

Please note that the answers provided here are general and may vary depending on specific implementation requirements and datasheet specifications.