Microchip Technology
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AT24C02BN-SH-B
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AT24C02BN-SH-B

Product Overview

Category

AT24C02BN-SH-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

  • Electrically erasable: The stored data can be erased and reprogrammed electronically.
  • Non-volatile: The data remains intact even when power is removed.
  • High storage capacity: AT24C02BN-SH-B has a storage capacity of 2 kilobits (256 bytes).
  • Low power consumption: It operates on low power supply voltages, making it suitable for battery-powered devices.

Package

AT24C02BN-SH-B is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of this product lies in its ability to provide reliable and compact non-volatile data storage in electronic devices.

Packaging/Quantity

AT24C02BN-SH-B is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Storage Capacity: 2 kilobits (256 bytes)
  • 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: 100 years

Detailed Pin Configuration

AT24C02BN-SH-B has a total of 8 pins:

  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 access: Allows reading and writing of data at any memory location.
  • Byte-level operations: Enables individual byte read and write operations.
  • Hardware write protection: The WP pin can be used to protect the memory from accidental writes.
  • I2C interface: Supports easy integration with microcontrollers and other devices using the I2C protocol.

Advantages and Disadvantages

Advantages

  • Compact size and low power consumption make it suitable for portable devices.
  • High storage capacity for its small form factor.
  • Reliable and durable, with a long data retention period.
  • Easy integration with existing systems due to the widely used I2C interface.

Disadvantages

  • Limited storage capacity compared to other memory technologies.
  • Slower write speeds compared to some other memory types.
  • Vulnerable to electromagnetic interference (EMI) due to its small size.

Working Principles

AT24C02BN-SH-B utilizes electrically erasable floating-gate technology. It consists of a grid of memory cells that can be individually programmed or erased by applying specific voltage levels. The stored data is retained even when power is removed, making it non-volatile.

Detailed Application Field Plans

AT24C02BN-SH-B finds applications in various fields, including: 1. Embedded systems: Used for storing configuration data, calibration values, and firmware updates. 2. Automotive electronics: Employed for storing vehicle settings, mileage data, and fault codes. 3. Smart meters: Utilized for storing energy consumption data and metering information. 4. Industrial automation: Used for storing production parameters, sensor calibration data, and equipment settings.

Detailed and Complete Alternative Models

Some alternative models to AT24C02BN-SH-B include: 1. AT24C01A: 1 kilobit (128 bytes) storage capacity. 2. AT24C04B: 4 kilobits (512 bytes) storage capacity. 3. AT24C08C: 8 kilobits (1024 bytes) storage capacity. 4. AT24C16D: 16 kilobits (2048 bytes) storage capacity.

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

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van AT24C02BN-SH-B in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of AT24C02BN-SH-B in technical solutions:

  1. Q: What is AT24C02BN-SH-B? A: AT24C02BN-SH-B is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chip manufactured by Microchip Technology. It has a storage capacity of 2 kilobits (256 bytes) and operates on the I2C (Inter-Integrated Circuit) bus.

  2. Q: What are the typical applications of AT24C02BN-SH-B? A: AT24C02BN-SH-B is commonly used for storing configuration data, calibration values, and other small amounts of non-volatile data in various electronic devices such as microcontrollers, sensors, and communication modules.

  3. Q: How do I interface with AT24C02BN-SH-B? A: AT24C02BN-SH-B uses the I2C protocol for communication. You can connect it to your microcontroller or other I2C-compatible devices using two wires - SDA (Serial Data Line) and SCL (Serial Clock Line).

  4. Q: What is the operating voltage range of AT24C02BN-SH-B? A: AT24C02BN-SH-B operates within a voltage range of 1.7V to 5.5V, making it compatible with a wide range of systems.

  5. Q: Can I write data to AT24C02BN-SH-B multiple times? A: Yes, AT24C02BN-SH-B supports both read and write operations. You can write data to it multiple times, but keep in mind that each memory location has a limited number of write cycles (typically around 1 million).

  6. Q: How fast can I read or write data to AT24C02BN-SH-B? A: The maximum clock frequency for AT24C02BN-SH-B is 1 MHz, which means you can read or write data at a speed of up to 1 million bits per second.

  7. Q: Is AT24C02BN-SH-B resistant to power loss or system failures? A: Yes, AT24C02BN-SH-B has built-in features like write protection and a hardware write-protect pin that help protect data integrity during power loss or system failures.

  8. Q: Can I use multiple AT24C02BN-SH-B chips in the same system? A: Yes, you can connect multiple AT24C02BN-SH-B chips on the same I2C bus by assigning unique addresses to each chip using the address pins (A0, A1, A2).

  9. Q: What is the typical endurance of AT24C02BN-SH-B? A: AT24C02BN-SH-B has a typical endurance of 1 million write cycles per memory location. This means you can write data to a specific memory location approximately 1 million times before it may start to degrade.

  10. Q: Are there any limitations to the storage capacity of AT24C02BN-SH-B? A: Yes, AT24C02BN-SH-B has a fixed storage capacity of 2 kilobits (256 bytes). If you require more storage, you would need to consider using higher-capacity EEPROM chips or other memory solutions.

Please note that the answers provided here are general and may vary depending on the specific implementation and requirements of your technical solution.