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PCF7935AA

Name: PCF7935AA
Rating: 4.7 (12 reviews)

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製造商。部分 #PCF7935AA
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規格

Brand

NXP Semiconductors

概述

Description

The PCF7935AA is a versatile RFID (Radio Frequency Identification) transponder chip commonly used in automotive applications for keyless entry, immobilizers, and remote keyless systems. Manufactured by NXP Semiconductors, it operates in the 125 kHz frequency range, enabling communication with compatible readers.
This chip incorporates a unique identification number and allows for data storage, making it suitable for secure applications. It features a low-power design, ensuring long battery life in key fobs and other devices. The PCF7935AA supports various protocols, enhancing its adaptability in different systems.
Additionally, it includes safety features like rolling codes to prevent unauthorized access. The chip is typically packaged in a small form factor, facilitating easy integration into compact electronic devices. Overall, the PCF7935AA plays a crucial role in enhancing vehicle security and convenience through advanced RFID technology.

Features

The PCF7935AA is a versatile RFID transponder chip designed for automotive and access control applications. Key features include:
1. Frequency: Operates at a frequency of 125 kHz.
2. Communication: Supports ISO 14443A and ISO 15693 protocols for contactless communication.
3. Memory: Equipped with EEPROM for data storage, typically holding up to 1 KB.
4. Security: Features a unique ID, various security measures, and cryptographic capabilities for secure access.
5. Energy Harvesting: Capable of harvesting energy from the reader's RF field, enabling operation without a battery.
6. Application Flexibility: Suitable for keyless entry systems, immobilizers, and remote key fob applications.
7. Multi-Application Support: Can be used for multiple functionalities in a single device (e.g., car access, navigation, and more).
Overall, the PCF7935AA is designed for robust performance in demanding environments, ensuring both security and reliability in automotive applications.

Package

The PCF7935AA is typically packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package). This compact form factor is designed for automotive applications, specifically for keyless entry and immobilizer systems in vehicles.

Pinout

The PCF7935AA is a transponder integrated circuit (IC) commonly used in automotive keyless entry systems and immobilizers. It features a 16-pin package.
Pin Count and Functions:
1. Pin 1 (VDD): Supply voltage.
2. Pin 2 (VSS): Ground reference.
3. Pin 3 (SCL): Serial clock input for communication.
4. Pin 4 (SDA): Serial data input/output.
5. Pin 5 (IRQ): Interrupt request output.
6. Pin 6 (H1): Connection for external components (e.g., antenna).
7. Pin 7 (H2): Connection for external components (e.g., antenna).
8. Pin 8 (NC): Not connected.
9. Pin 9 (NC): Not connected.
10. Pin 10 (M1): Modulation input/output.
11. Pin 11 (NC): Not connected.
12. Pin 12 (M2): Modulation input/output.
13. Pin 13 (TX): Transmit for RF communication.
14. Pin 14 (RX): Receive for RF communication.
15. Pin 15 (GND): Ground reference.
16. Pin 16 (ANT): Antenna connection.
The PCF7935AA primarily functions in RFID applications, enabling secure vehicle access and engine start capabilities.

Manufacturer

The PCF7935AA is manufactured by NXP Semiconductors, a global semiconductor company headquartered in Eindhoven, Netherlands. NXP specializes in developing semiconductor solutions for automotive, industrial, and Internet of Things (IoT) applications. The company is known for its expertise in security, connectivity, and processing technologies, providing products such as microcontrollers, RFID solutions, and secure identification chips. NXP's focus on innovation positions it as a leader in the automotive and smart device markets, contributing to advanced applications like vehicle access systems and contactless payments.

Application

The PCF7935AA is primarily used in automotive applications, particularly for keyless entry systems and immobilizers. Additionally, it serves in access control systems, RFID tags, and smart card technology. Its capabilities support vehicle identification and communication, enhancing security and convenience in modern automotive environments.

Equivalent

Equivalent products to the PCF7935AA chip include the PCF7930, PCF7931, and PCF7936. These chips are part of the same family and serve similar RFID and immobilizer applications. However, specific compatibility may vary based on the system requirements, so it's essential to verify functionality for your use case.