NM24C02EN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Memory
• Characteristics: High-density, Serial EEPROM
• Package: 8-pin DIP (Dual In-line Package)
• Essence: Electrically Erasable Programmable Read-Only Memory (EEPROM)
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Memory Size: 2 Kbits (256 bytes)
• Interface: I2C (Inter-Integrated Circuit) compatible
• 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

The NM24C02EN has the following pin configuration:

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: Power Supply

Functional Features

• Low power consumption
• Byte-wise and page-wise write operations
• Self-timed write cycle with auto-erase
• Software write protection
• Hardware write protection using WP pin
• Sequential read operation
• Schmitt trigger inputs for noise immunity

Advantages

• High memory density in a compact package
• Low power consumption extends battery life
• Easy integration with I2C bus systems
• Reliable data retention for long periods
• Flexible write protection options

Disadvantages

• Limited memory size compared to other EEPROMs
• Slower write and erase operations compared to RAM
• Susceptible to data corruption in high-noise environments

Working Principles

The NM24C02EN is based on EEPROM technology, which allows non-volatile storage of digital information. It utilizes an I2C interface for communication with the host system. The memory cells are organized into 256 bytes, each of which can be individually written or read. Write operations involve a self-timed cycle that automatically erases the targeted memory location before programming new data. The device supports both byte-wise and page-wise write operations, providing flexibility in data storage.

Detailed Application Field Plans

The NM24C02EN finds applications in various fields, including:

1. Consumer Electronics: Used for storing configuration settings, user preferences, and firmware updates in devices like TVs, set-top boxes, and audio systems.
2. Automotive: Employed in electronic control units (ECUs) for storing critical data such as calibration parameters, fault codes, and mileage information.
3. Industrial Automation: Utilized in programmable logic controllers (PLCs), sensors, and other industrial equipment for storing configuration data, production logs, and process parameters.
4. Medical Devices: Integrated into medical instruments and monitoring systems for storing patient data, device settings, and event logs.
5. Smart Grids: Used in smart meters for storing energy consumption data, billing information, and communication protocols.

Detailed and Complete Alternative Models

1. AT24C02: Manufactured by Atmel Corporation, this 2 Kbit EEPROM also uses the I2C interface and offers similar features.
2. CAT24C02: Produced by ON Semiconductor, this 2 Kbit EEPROM is compatible with I2C and provides comparable functionality.
3. M24C02: Manufactured by STMicroelectronics, this 2 Kbit EEPROM is also I2C compatible and offers similar specifications.

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