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

Product Attributes

Introduction

MS520 is a highly integrated read/write card IC for 13.56MHz contactless communication. It integrates all types of passive contactless communication modes and protocols at 13.56MHz, and supports multi-layer applications of ISO14443A.

Features

• Highly integrated demodulation and decoding analog circuitry requiring minimal external components to connect the output driver stage to the antenna
• Supports ISO/IEC 14443 A communication at 106kBd, 212kBd, 424kBd, and 848kBd data rates
• Read/write range up to 50mm, depending on antenna design
• Supports M1 read/write encryption
• SPI interface up to 10Mbit/s for host communication
• 64-byte transmit and receive FIFO buffer
• Flexible interrupt modes
• Low-power hardware reset
• Software power-down mode
• Programmable timer
• Internal oscillator for 27.12MHz crystal
• 2.5V–3.3V supply voltage
• CRC coprocessor and parity checking
• Programmable I/O pin internal self-test

Applications

• Smart "three-meter" systems
• Public transit terminals
• Portable handheld devices
• Contactless public telephones