AT24C32E-XHM-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Electrically Erasable Programmable Read-Only Memory (EEPROM)
• Characteristics: Low-power, high-density, serial interface
• Package: 8-lead SOIC (Small Outline Integrated Circuit)
• Essence: Data storage and retrieval in electronic devices
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Memory Size: 32 kilobits (4096 bytes)
• Interface: I2C (Inter-Integrated Circuit)
• Supply 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 AT24C32E-XHM-T has a total of 8 pins:

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 Input
8. VCC: Supply Voltage

Functional Features

• High-speed I2C interface for easy integration with microcontrollers
• Byte-wise and page-wise write operations for flexible data storage
• Built-in write protection mechanism to prevent accidental modification
• Low power consumption for extended battery life in portable devices
• Self-timed programming cycle eliminates the need for external timing components

Advantages

• Compact package size enables space-efficient designs
• Wide operating voltage range allows compatibility with various systems
• High data retention ensures long-term reliability
• Easy-to-use I2C interface simplifies system integration
• Low power consumption reduces energy requirements

Disadvantages

• Limited storage capacity compared to other memory technologies
• Relatively slower write cycle time may impact performance in certain applications
• Vulnerable to electromagnetic interference due to serial interface

Working Principles

The AT24C32E-XHM-T is based on EEPROM technology, which utilizes floating-gate transistors to store and retrieve data. It employs an I2C interface for communication with the host microcontroller. The device operates by sending control signals and data through the SDA and SCL pins. Write operations involve addressing the specific memory location and providing the data to be stored. Read operations retrieve the stored data by specifying the memory address. The built-in write protection feature ensures data integrity by preventing accidental modifications.

Detailed Application Field Plans

The AT24C32E-XHM-T is widely used in various electronic devices that require non-volatile data storage. Some common application fields include:

1. Consumer Electronics: Used in smart TVs, set-top boxes, and audio systems for storing user preferences, settings, and firmware updates.
2. Automotive: Employed in car infotainment systems, instrument clusters, and electronic control units (ECUs) to store critical data such as vehicle configurations and fault codes.
3. Industrial Automation: Integrated into programmable logic controllers (PLCs), sensors, and human-machine interfaces (HMIs) to store calibration data, production parameters, and system configurations.
4. Medical Devices: Utilized in medical equipment like patient monitors, infusion pumps, and diagnostic devices to store patient data, device settings, and firmware updates.

Detailed and Complete Alternative Models

1. AT24C64E-XHM-T: 64 kilobits (8192 bytes) EEPROM with similar specifications and features.
2. AT24C128E-XHM-T: 128 kilobits (16384 bytes) EEPROM offering increased storage capacity.
3. AT24C256E-XHM-T: 256 kilobits (32768 bytes) EEPROM with extended memory size.

These alternative models provide options for higher storage requirements while maintaining compatibility and similar functionality to the AT24C32E-XHM-T.

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