AT24C02A-10PU-2.7

Overview

Product Category

AT24C02A-10PU-2.7 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 AT24C02A-10PU-2.7 can be erased and reprogrammed electronically, making it convenient for data updates.
• Non-volatile: The stored data remains intact even when power is removed.
• Low power consumption: This chip operates at a low voltage and consumes minimal power during read and write operations.
• High reliability: The AT24C02A-10PU-2.7 offers excellent data retention and endurance, ensuring long-term reliability.
• Small package size: It comes in a compact 8-pin PDIP (Plastic Dual In-line Package) form factor.

Packaging/Quantity

The AT24C02A-10PU-2.7 is typically packaged in tubes or reels, with each tube/reel containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory capacity: 2 kilobits (256 bytes)
• Operating voltage: 2.7V to 5.5V
• Maximum clock frequency: 400 kHz
• Write cycle time: 5 ms (maximum)
• Data retention: 100 years (minimum)
• Endurance: 1 million write cycles (minimum)

Pin Configuration

The AT24C02A-10PU-2.7 has eight pins arranged as follows:

```

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| | 1 | 8 | Vcc 2 | 7 | SDA 3 | 6 | SCL 4 | 5 | GND |___________| ```

1. Vcc: Power supply voltage (+2.7V to +5.5V)
2. SDA: Serial data input/output
3. SCL: Serial clock input
4. GND: Ground (0V reference)

Functional Features

• Random access: The AT24C02A-10PU-2.7 allows random read and write operations, enabling efficient data retrieval and modification.
• Byte-level addressing: Each memory location can be individually accessed using a unique address, providing flexibility in data storage and retrieval.
• Hardware write protection: This chip includes a write protection mechanism that prevents accidental or unauthorized modifications to stored data.
• I2C interface: The AT24C02A-10PU-2.7 communicates using the widely adopted I2C (Inter-Integrated Circuit) protocol, ensuring compatibility with various microcontrollers and devices.

Advantages and Disadvantages

Advantages

• Easy to use and integrate into electronic systems.
• Low power consumption makes it suitable for battery-powered devices.
• High reliability ensures data integrity over extended periods.
• Compact package size allows for space-efficient designs.
• Cost-effective solution for non-volatile data storage.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower write cycle time may impact performance in certain applications.
• Susceptible to electromagnetic interference (EMI) due to its small form factor.

Working Principles

The AT24C02A-10PU-2.7 utilizes EEPROM technology, which employs floating-gate transistors to store and retrieve data. When writing data, an electric charge is applied to the floating gate, altering its electrical characteristics. This change is then detected during subsequent read operations. The I2C interface facilitates communication between the chip and the controlling device, enabling seamless data transfer.

Application Field Plans

The AT24C02A-10PU-2.7 finds applications in various fields, including: 1. Embedded systems: Used for storing configuration settings, calibration data, and firmware updates in microcontroller-based systems. 2. Consumer electronics: Employed in devices like smart TVs, set-top boxes, and digital cameras to store user preferences, log data, and system parameters. 3. Automotive industry: Utilized for storing critical data, such as mileage, fault codes, and vehicle settings, in electronic control units (ECUs). 4. Industrial automation: Integrated into programmable logic controllers (PLCs) and industrial sensors for storing calibration data, production logs, and system configurations.

Alternative Models

Several alternative models with similar functionality are available in the market. Some notable alternatives to the AT24C02A-10PU-2.7 include: - AT24C01A - AT24C04 - AT24C08 - AT24C16

These models offer varying memory capacities, operating volt