Overview
The NXP PN7642 is a highly integrated single-chip solution designed for high-performance Near Field Communication (NFC) applications. It combines an NFC reader frontend with a powerful, customizable Arm Cortex-M33 microcontroller and a comprehensive security toolbox.
Key Features
- Arm Cortex-M33 Microcontroller: Operates up to 90 MHz, featuring an integrated NVIC, system tick timer, and ample on-chip memory (256 kB Flash, 32 kB RAM).
- NFC Functionality: Supports a wide range of 13.56 MHz reader/writer (PCD) and card (PICC) modes, including ISO14443-3/4 A/B, ISO15693, ISO18000-3, and FeliCa.
- High Data Rates: Capable of high-speed communication, up to 212 kbit/s for NTAG 5 based on ISO/IEC15693.
- Advanced Transmitter: Features 2.0 W transmitter output power with Dynamic Power Control (DPC 2.0) and Adaptive Waveform Control (AWC) for optimized performance and compliance.
- Robust Receiver: Incorporates innovative signal processing for enhanced robustness against noise, with automatic gain control (AGC) for optimized signal-to-noise ratio.
- Power Saving: Offers comprehensive power-saving configurations, including standby and ultra low-power card detection (ULPCD).
- Security Toolbox: Includes symmetric and asymmetric crypto accelerators, secure key storage, secure boot support, and a key transfer unit.
- Connectivity: Supports multiple host interfaces including USB 2.0 Full-speed, I2C, SPI, and UART.
Applications
- Physical access control
- eGovernment solutions
- Closed-loop payment systems
- Secure authentication
- Enhanced Contactless Polling (ECP)
Technical Highlights
- Integrated low-noise DC-DC converter for flexible power supply.
- Internal temperature sensor and overcurrent protection for device safety.
- Firmware upgradeable in the field.
- Wide operating ambient temperature range (-40 °C to +85 °C).
