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PCF7943AT
PCF7943AT is an advanced transponder chip used for keyless entry and immobilizer systems in vehicles.
PCF7943AT
PCF7943AT is an advanced transponder chip used for keyless entry and immobilizer systems in vehicles.
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PCF7943AT 數據表
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詳細說明
The PCF7943AT is a transponder IC (integrated circuit) manufactured by NXP Semiconductors. It is a top-of-the-line device designed for use in multifunctional remote keyless entry systems for vehicles. The PCF7943AT is highly versatile and can be used in a wide range of applications, making it a popular choice among automotive manufacturers.Some key details of the PCF7943AT include:- It operates at a frequency of 125 kHz, which is the standard operating frequency for transponder ICs in automotive applications.- The PCF7943AT has a memory capacity of 80 bits, allowing for the storage of unique codes and identification information.- It features advanced encryption and security features to prevent unauthorized access and cloning attempts.- The PCF7943AT is compatible with a variety of transponder technologies, making it a flexible option for vehicle manufacturers.- It has a compact, lightweight design, making it easy to integrate into key fobs and other remote entry devices.- The PCF7943AT has a wide operating temperature range, making it suitable for use in a variety of environments.
主要特徵
- Advanced encryption for improved security
- Enhanced communication protocols for faster data transfer
- Supports multiple keyless entry systems
- Compact design for easy integration
- Compatible with a wide range of vehicles
- Highly reliable and durable for long-lasting performance
應用
- Remote keyless entry systems
- Immobilizer systems
- Car alarm systems
- Vehicle theft prevention systems
- Keyless start systems
- Electronic toll collection systems
- Rental car key systems
- Smart access control systems
- Vehicle tracking systems
- Automatic gate systems
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Manufacturer | NXP Semiconductors | Product Category ! | IC Chips |
常見問題解答
What is PCF7943AT?
The PCF7943AT is a transponder chip designed by NXP Semiconductors. It is commonly used in automotive keyless entry systems, immobilizers, and remote keyless systems to provide secure and reliable communication between the key fob and the vehicle.
How Does PCF7943AT Work?
The PCF7943AT operates by storing unique identification data and encryption keys that are securely transmitted between the key fob and the vehicle's immobilizer system. It utilizes RFID technology to establish a secure communication link, allowing for keyless entry and engine start functions based on authentication.
How Many Pins does PCF7943AT have and What are the Functions of the Pinout Configuration?
The PCF7943AT is housed in a compact 14-pin SO package. The pinout configuration includes:
- VCC: Supply voltage pin.
- VDDB: Internal buffer supply voltage pin.
- RESET: Reset input pin for initialization.
- CLKIN: Clock input pin.
- DATAIN: Data input pin for communication.
- OD1, OD2: Open drain outputs for signaling.
- RSTOUT: Reset output signal.
What are the Pros and Cons of PCF7943AT?
Pros:
- Security: Provides secure data transmission for keyless entry systems.
- Reliability: Ensures reliable communication between the key fob and the vehicle.
- Compact Design: Small form factor suitable for integration into key fobs and automotive systems.
- Encryption: Supports encryption for securing the communication link.
Cons:
- Compatibility: May require specific protocols for integration with existing vehicle systems.
- Programming: Requires proper programming and initialization for correct operation.
- Cost: Implementation cost may be higher compared to non-transponder key systems.
Are There Any Equivalents/Alternatives to PCF7943AT for Recommendation?
- The PCF7936AS from NXP Semiconductors is a compatible transponder chip for keyless entry systems.
- Alternative options to the PCF7943AT include the HITAG 1 from NXP and the TMS3705A from Texas Instruments.
