AT24C02BN-SH-T
Low-capacity EEPROM memory chips for versatile electronic systems
Manufacturer： ['microchip', 'atmel']
series introduction
# Introduction to the AT24C02BN - SH - T Product Series
## 1. Overview
The AT24C02BN - SH - T belongs to the family of Serial Electrically Erasable Programmable Read - Only Memory (EEPROM) products. EEPROMs are non - volatile memory devices that allow data to be stored and retained even when the power is turned off. This particular product series is designed to offer reliable and efficient data storage solutions for a wide range of applications, from consumer electronics to industrial control systems.
## 2. Key Features
### 2.1 Memory Capacity
The AT24C02BN - SH - T has a memory capacity of 2 kilobits (2Kb), which is equivalent to 256 bytes. This capacity makes it suitable for storing small to medium - sized amounts of data, such as configuration settings, calibration data, and user preferences.
### 2.2 Serial Interface
It utilizes the I²C (Inter - Integrated Circuit) serial interface. The I²C interface is a widely adopted standard in the electronics industry, known for its simplicity and flexibility. It allows for easy communication between the EEPROM and other devices on the same bus, using only two wires (a serial data line - SDA and a serial clock line - SCL). This reduces the number of pins required for communication, saving board space and simplifying the overall circuit design.
### 2.3 Low Power Consumption
The product is designed with low power consumption in mind. It operates at a low supply voltage range, typically between 1.8V and 5.5V. This makes it suitable for battery - powered applications, where minimizing power consumption is crucial to extend the battery life. In standby mode, the power consumption is extremely low, further conserving energy.
### 2.4 High - Speed Operation
The AT24C02BN - SH - T supports high - speed data transfer rates. It can operate at clock frequencies up to 400kHz in the standard mode and up to 1MHz in the fast mode. This enables quick read and write operations, allowing for efficient data access and storage.
### 2.5 Endurance and Data Retention
It offers a high endurance rating, with the ability to withstand up to 1 million write cycles. This means that the memory cells can be written to and erased up to 1 million times without significant degradation. Additionally, the data stored in the EEPROM has a long data retention period, typically up to 100 years. This ensures the reliability of the stored data over an extended period.
### 2.6 Hardware Write Protection
The device features hardware write protection capabilities. By connecting the write protection (WP) pin to a specific logic level, the user can prevent accidental or unauthorized writes to the memory. This provides an additional layer of security for the stored data.
## 3. Package and Pin Configuration
### 3.1 Package Type
The AT24C02BN - SH - T is available in a small - outline integrated circuit (SOIC) package. The SOIC package is a popular choice in the electronics industry due to its compact size and ease of handling during the assembly process. It is suitable for surface - mount technology (SMT) applications, which are commonly used in modern printed circuit board (PCB) designs.
### 3.2 Pin Configuration
- **VCC**: This is the power supply pin, which is connected to the positive voltage source.
- **GND**: The ground pin, which provides the reference voltage for the device.
- **SDA**: The serial data line used for bidirectional data transfer between the EEPROM and the host device.
- **SCL**: The serial clock line, which provides the timing signal for
Images for reference
8-SOIC