Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tube |
| ProductStatus | Obsolete |
| MemoryType | Non-Volatile |
| MemoryFormat | EEPROM |
| Technology | EEPROM |
| MemorySize | 2Kb (256 x 8) |
| MemoryInterface | I²C |
| ClockFrequency | 1 MHz |
| WriteCycleTime-WordPage | 5ms |
| AccessTime | 550 ns |
| Voltage-Supply | 1.8V ~ 5.5V |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Through Hole |
| Package/Case | 8-DIP (0.300, 7.62mm) |
Tổng quan
Description
The AT24C02B-PU is a type of EEPROM (Electrically Erasable Programmable Read-Only Memory) produced by Microchip Technology. This non-volatile memory device offers 2 kilobits (256 x 8 bits) of storage space, allowing data retention even when the power is off. It utilizes an I2C (Inter-Integrated Circuit) bus for communication, supporting fast data transfer rates and enabling multiple devices to share the same bus. The device operates with a supply voltage range of 1.7V to 5.5V, making it suitable for a variety of applications, such as data logging, calibration data storage, and device configuration settings.
The AT24C02B-PU comes in an 8-pin PDIP (Plastic Dual In-line Package), making it easy to integrate into circuits and suitable for prototyping or small-scale production. Its low-power consumption is ideal for battery-operated devices. Key features include a write-protect pin to prevent accidental data overwrites and a wide operating temperature range, suitable for various environments. The device is reliable and robust, offering more than a million write cycles and data retention of over 100 years, ensuring long-term performance.
The AT24C02B-PU comes in an 8-pin PDIP (Plastic Dual In-line Package), making it easy to integrate into circuits and suitable for prototyping or small-scale production. Its low-power consumption is ideal for battery-operated devices. Key features include a write-protect pin to prevent accidental data overwrites and a wide operating temperature range, suitable for various environments. The device is reliable and robust, offering more than a million write cycles and data retention of over 100 years, ensuring long-term performance.
Equivalent
The AT24C02B-PU is a 2Kb (256 x 8) I2C EEPROM. Equivalent products include the Microchip 24LC02B, STMicroelectronics M24C02-W, NXP PCA9500, and ON Semiconductor CAT24C02. These are all 2Kb I2C EEPROMs with similar pin configurations and electrical characteristics, making them suitable alternatives in most applications. Always check the specific datasheets for compatibility details.
Features
The AT24C02B-PU is a two-wire serial EEPROM with the following key features:
1. Storage Capacity: 2 Kbits organized as 256 x 8-bit memory.
2. Interface: I2C (Inter-Integrated Circuit) bus protocol with two-wire serial interface.
3. Operating Voltage: Wide voltage range from 1.7V to 5.5V.
4. Speed: Supports up to 1 MHz clock frequency in Fast-mode Plus.
5. Write Cycle Time: Maximum write cycle time of 5 ms.
6. Endurance: More than 1,000,000 write cycles per byte.
7. Data Retention: Over 100 years of data retention.
8. Page Write Capability: Allows up to 8 bytes to be written in a single write cycle.
9. Security: Includes a hardware write-protect pin.
10. Package: Available in PDIP, SOIC, TSSOP, and other package types.
11. Low Power Consumption: Suitable for battery-powered and low-power applications.
These features make the AT24C02B-PU ideal for a variety of applications requiring reliable, non-volatile memory storage with low power consumption and enhanced data protection.
1. Storage Capacity: 2 Kbits organized as 256 x 8-bit memory.
2. Interface: I2C (Inter-Integrated Circuit) bus protocol with two-wire serial interface.
3. Operating Voltage: Wide voltage range from 1.7V to 5.5V.
4. Speed: Supports up to 1 MHz clock frequency in Fast-mode Plus.
5. Write Cycle Time: Maximum write cycle time of 5 ms.
6. Endurance: More than 1,000,000 write cycles per byte.
7. Data Retention: Over 100 years of data retention.
8. Page Write Capability: Allows up to 8 bytes to be written in a single write cycle.
9. Security: Includes a hardware write-protect pin.
10. Package: Available in PDIP, SOIC, TSSOP, and other package types.
11. Low Power Consumption: Suitable for battery-powered and low-power applications.
These features make the AT24C02B-PU ideal for a variety of applications requiring reliable, non-volatile memory storage with low power consumption and enhanced data protection.
Pinout
The AT24C02B-PU is an EEPROM (Electrically Erasable Programmable Read-Only Memory) IC with an 8-pin configuration. It uses an I2C interface for communication. Here's a brief overview of its pin functions:
1. A0, A1, A2 (Pins 1-3): These are address pins used to set the I2C address, allowing up to 8 devices on the same bus.
2. GND (Pin 4): Ground reference voltage.
3. SDA (Pin 5): Serial Data line for I2C communication; it is bidirectional.
4. SCL (Pin 6): Serial Clock line for I2C communication.
5. WP (Pin 7): Write Protect pin; when connected to VCC, it disables write operations to the EEPROM.
6. VCC (Pin 8): Supply voltage pin.
This EEPROM is used for storing small amounts of non-volatile data and is suitable for applications requiring low power consumption and high endurance.
1. A0, A1, A2 (Pins 1-3): These are address pins used to set the I2C address, allowing up to 8 devices on the same bus.
2. GND (Pin 4): Ground reference voltage.
3. SDA (Pin 5): Serial Data line for I2C communication; it is bidirectional.
4. SCL (Pin 6): Serial Clock line for I2C communication.
5. WP (Pin 7): Write Protect pin; when connected to VCC, it disables write operations to the EEPROM.
6. VCC (Pin 8): Supply voltage pin.
This EEPROM is used for storing small amounts of non-volatile data and is suitable for applications requiring low power consumption and high endurance.
Manufacturer
The AT24C02B-PU is manufactured by Microchip Technology Inc. Microchip is a publicly traded company known for producing microcontroller, mixed-signal, analog, and Flash-IP integrated circuits. They are a prominent player in the semiconductor industry, focusing on designing and selling products for a variety of applications, including automotive, industrial, computing, consumer, and communications markets. Microchip's products are used in a wide range of devices and systems, providing solutions that enable efficient and effective electronic design.
Application
The AT24C02B-PU is a 2Kb serial EEPROM used in a variety of applications due to its non-volatile memory capabilities. Key application areas include:
1. Consumer Electronics: Stores configuration settings and user preferences in devices like TVs and audio equipment.
2. Industrial Automation: Used for data logging, calibration data, and settings storage in control systems.
3. Computing and Networking: Manages configuration settings in routers, switches, and other network devices.
4. Automotive: Retains settings in infotainment systems and other electronic control units.
5. Medical Devices: Stores critical settings and data in diagnostic equipment.
6. IoT Devices: Used for firmware storage and configuration settings.
These applications benefit from its endurance, low power consumption, and reliable data retention.
1. Consumer Electronics: Stores configuration settings and user preferences in devices like TVs and audio equipment.
2. Industrial Automation: Used for data logging, calibration data, and settings storage in control systems.
3. Computing and Networking: Manages configuration settings in routers, switches, and other network devices.
4. Automotive: Retains settings in infotainment systems and other electronic control units.
5. Medical Devices: Stores critical settings and data in diagnostic equipment.
6. IoT Devices: Used for firmware storage and configuration settings.
These applications benefit from its endurance, low power consumption, and reliable data retention.
Package
The AT24C02B-PU is a type of EEPROM memory chip packaged in an 8-pin Dual Inline Package (DIP). This through-hole package is widely used for easy prototyping and integration into electronic circuits.
