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24LC22AT-I/SN

24LC22AT-I/SN

Product Overview

Category: Integrated Circuit (IC)

Use: Non-volatile Memory

Characteristics: - Low-power CMOS technology - 2-wire serial interface - 2Kbits of EEPROM memory - 128-byte page write buffer - Self-timed write cycle - 1,000,000 erase/write cycles - Data retention > 200 years - 8-pin SOIC package

Essence: The 24LC22AT-I/SN is a non-volatile memory IC that provides 2Kbits of electrically erasable programmable read-only memory (EEPROM) storage. It features a 2-wire serial interface and low-power CMOS technology.

Packaging/Quantity: The 24LC22AT-I/SN is available in an 8-pin Small Outline Integrated Circuit (SOIC) package. It is typically sold in reels or tubes containing multiple units.

Specifications

  • Memory Size: 2Kbits (256 bytes)
  • Interface: I2C (2-wire serial)
  • Supply Voltage: 1.7V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Write Cycle Time: 5ms (typical)
  • Erase/Write Cycles: 1,000,000
  • Data Retention: > 200 years

Detailed Pin Configuration

The 24LC22AT-I/SN has the following pin configuration:

  1. VCC - Power supply voltage
  2. SDA - Serial data input/output
  3. SCL - Serial clock input
  4. WP - Write protect (optional)
  5. GND - Ground
  6. NC - No connection
  7. NC - No connection
  8. VSS - Ground

Functional Features

  • 2-wire serial interface allows easy integration with microcontrollers and other devices.
  • Self-timed write cycle simplifies programming operations.
  • 128-byte page write buffer improves write efficiency.
  • Low-power CMOS technology enables energy-efficient operation.
  • High endurance with 1,000,000 erase/write cycles.
  • Long data retention period of over 200 years.

Advantages and Disadvantages

Advantages: - Compact size and low power consumption make it suitable for portable devices. - Easy integration with microcontrollers due to the I2C interface. - High endurance and long data retention ensure reliable data storage.

Disadvantages: - Limited memory capacity (2Kbits) may not be sufficient for certain applications. - Relatively slower write cycle time compared to some other EEPROMs.

Working Principles

The 24LC22AT-I/SN operates based on the principles of electrically erasable programmable read-only memory (EEPROM). It uses a 2-wire serial interface (I2C) to communicate with the controlling device. The memory can be written or erased by applying appropriate voltage levels to the control pins. The self-timed write cycle ensures proper timing for programming operations. The data is retained even when the power supply is disconnected, making it non-volatile.

Detailed Application Field Plans

The 24LC22AT-I/SN is commonly used in various electronic devices that require non-volatile memory storage. Some application fields include:

  1. Consumer Electronics: Used in smart TVs, set-top boxes, and audio/video equipment for storing configuration settings, user preferences, and firmware updates.
  2. Industrial Automation: Employed in industrial control systems, PLCs, and sensors for storing calibration data, event logs, and system parameters.
  3. Automotive: Integrated into automotive electronics for storing vehicle settings, fault codes, and firmware updates.
  4. Medical Devices: Utilized in medical equipment for storing patient data, device configurations, and firmware updates.
  5. IoT Devices: Incorporated into Internet of Things (IoT) devices for storing sensor data, device configurations, and firmware updates.

Detailed and Complete Alternative Models

  1. 24LC01B-I/SN: 1Kbit EEPROM memory, 8-pin SOIC package.
  2. 24LC04B-I/SN: 4Kbit EEPROM memory, 8-pin SOIC package.
  3. 24LC08B-I/SN: 8Kbit EEPROM memory, 8-pin SOIC package.
  4. 24LC16B-I/SN: 16Kbit EEPROM memory, 8-pin SOIC package.
  5. 24LC32B-I/SN: 32Kbit EEPROM memory, 8-pin SOIC package.
  6. 24LC64B-I/SN: 64Kbit EEPROM memory, 8-pin SOIC package.
  7. 24LC128-I/SN: 128Kbit EEPROM memory, 8-pin SOIC package.

Καταγράψτε 10 συνήθεις ερωτήσεις και απαντήσεις που σχετίζονται με την εφαρμογή του 24LC22AT-I/SN σε τεχνικές λύσεις

  1. What is the maximum clock frequency for 24LC22AT-I/SN?
    - The maximum clock frequency for 24LC22AT-I/SN is 400 kHz.

  2. What is the operating voltage range for 24LC22AT-I/SN?
    - The operating voltage range for 24LC22AT-I/SN is 1.7V to 5.5V.

  3. Can 24LC22AT-I/SN be used in automotive applications?
    - Yes, 24LC22AT-I/SN is AEC-Q100 qualified and suitable for automotive applications.

  4. What is the typical write cycle time for 24LC22AT-I/SN?
    - The typical write cycle time for 24LC22AT-I/SN is 5 ms.

  5. Does 24LC22AT-I/SN support sequential reads?
    - Yes, 24LC22AT-I/SN supports sequential reads for efficient data retrieval.

  6. Is 24LC22AT-I/SN compatible with I2C communication protocol?
    - Yes, 24LC22AT-I/SN is fully compatible with the I2C communication protocol.

  7. What is the temperature range for 24LC22AT-I/SN?
    - The temperature range for 24LC22AT-I/SN is -40°C to 125°C.

  8. Can 24LC22AT-I/SN be used in battery-powered devices?
    - Yes, 24LC22AT-I/SN has low power consumption and is suitable for battery-powered devices.

  9. Does 24LC22AT-I/SN have built-in write protection?
    - Yes, 24LC22AT-I/SN features built-in hardware write protection.

  10. What is the package type for 24LC22AT-I/SN?
    - 24LC22AT-I/SN is available in a 8-pin SOIC package.