آر اف (فرکانس رادیویی) و بی‌سیم آی‌سی آر‌اف‌آی‌دی و کنترل دسترسی

Product Attributes

Introduction

FM17522 is a highly integrated contactless reader/writer chip operating at 13.56 MHz, supporting contactless reader/writer mode compliant with the ISO/IEC 14443 Type A protocol. It also provides a low-power external card detection function, making it ideal for battery-powered reader/writer devices that require low-power operation and real-time handling of external cards entering the RF field at any time. The FM17522 features low voltage, low power consumption, strong drive capability, and multi-interface support. It is suitable for contactless reader/writer applications with low-power, low-voltage, and low-cost requirements.

Features

• ISO/IEC 14443 Type A reader/writer mode support
• M1 encryption support in reader/writer mode
• ISO14443 TYPE A communication rates: 106kbps, 212kbps, 424kbps, 848kbps
• Reader/writer operating distance up to 50mm (antenna design dependent)
• Multiple host interfaces supported
  • SPI interface up to 10Mbps
  • I2C interface fast mode up to 400Kbps and high-speed mode up to 3.4Mbps
  • Serial UART interface with RS232 frame format, max communication rate 1.2Mbps
  • Independent power supply for host interface
• 64-byte transceiver FIFO buffer
• Flexible configurable interrupt output modes
• Multiple low-power modes
  • Soft powerdown mode
  • Hard powerdown mode
  • Deep powerdown mode (typical 1uA)
• Low-power external card detection support
• Programmable timer
• Built-in oscillator circuit with external 27.12MHz crystal
• Wide supply voltage range: 2.2V~3.6V
• Built-in CRC coprocessor
• Programmable I/O pins