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

Product Attributes

Introduction

MFRC523 is a widely used contactless card reader chip that integrates multiple contactless communication modes and protocols at 13.56MHz, featuring a high level of technical integration.

Features

• Reader mode supports ISO/IEC 14443A standard
• Reader mode supports ISO/IEC 14443B standard
• Highly integrated demodulation and decoding analog circuitry
• Minimal external components required to connect output driver to antenna
• Typical operating distance up to 70mm in reader mode, depending on antenna design and power supply
• I2C interface support: Fast Mode up to 400k, High-Speed Mode up to 3400k
• UART interface support up to 1228.8k
• SPI interface support up to 10Mbit/s
• 64-byte FIFO buffer for receive and transmit
• Flexible interrupt modes
• Low-power hardware power-down mode
• Software power-down mode support
• LPCD function support
• Programmable timer
• Internal oscillator with 27.12MHz crystal
• 2.5V~5V wide-range supply voltage
• CRC coprocessor
• Programmable I/O pins
• Internal self-test function

Applications

• Attendance check-in
• Access control
• Public transportation
• Cafeteria dining
• Utility recharge (water/electricity/gas)