AT24C21-10PC-2.5

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Data storage and retrieval

Characteristics: - Non-volatile memory - Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) - 2-wire serial interface - 2.5V power supply - 10MHz clock frequency - 2,048 bits of memory organized in 256 bytes

Package: DIP (Dual In-line Package)

Essence: The AT24C21-10PC-2.5 is a 2-wire serial EEPROM IC designed for data storage and retrieval applications.

Packaging/Quantity: Available in tubes or reels with a quantity of 25 pieces per tube/reel.

Specifications

• Supply Voltage: 2.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Cycle Time: 5ms (maximum)
• Data Retention: 100 years (minimum)
• Endurance: 1,000,000 write cycles (minimum)

Detailed Pin Configuration

The AT24C21-10PC-2.5 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
8. VCC: Power Supply

Functional Features

• 2-wire serial interface allows easy integration with microcontrollers and other devices.
• Non-volatile memory retains data even when power is disconnected.
• High endurance ensures reliable and long-lasting data storage.
• Wide operating voltage range provides flexibility in various applications.
• Write protection feature (WP pin) prevents accidental modification of stored data.

Advantages and Disadvantages

Advantages: - Compact size and low power consumption make it suitable for portable devices. - Easy to interface with microcontrollers using the I2C protocol. - High endurance and long data retention ensure reliable performance. - Wide operating temperature range allows usage in various environments.

Disadvantages: - Limited storage capacity compared to other memory options. - Slower write cycle time compared to some competing EEPROMs. - Requires external components for proper operation.

Working Principles

The AT24C21-10PC-2.5 operates based on the principles of EEPROM technology. It utilizes a floating gate transistor structure to store and retrieve data. The serial interface enables communication between the IC and the controlling device, allowing data to be written or read from the memory cells. The non-volatile nature of EEPROM ensures that data remains intact even when power is disconnected.

Detailed Application Field Plans

The AT24C21-10PC-2.5 can be used in various applications, including but not limited to: - Consumer electronics - Industrial automation - Automotive systems - Medical devices - Communication equipment

In consumer electronics, it can be utilized for storing user settings, configuration data, or firmware updates. In industrial automation, it can be employed for data logging, parameter storage, or system calibration. Automotive systems can benefit from its use in storing vehicle-specific information or sensor calibration data. Medical devices can utilize it for patient data storage or device configuration. Communication equipment can employ it for storing network settings or encryption keys.

Detailed and Complete Alternative Models

Some alternative models to the AT24C21-10PC-2.5 include: - AT24C01A-10PU-2.7 - AT24C04C-SSHM-T - AT24C256C-SSHL-T - AT24C512C-SSHD-T

These models offer different storage capacities, operating voltages, and package options, providing flexibility to suit specific application requirements.

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