RE31

Multi-Protocol HF Reader IC

The RE31 is a single-chip long-range reader designed for all popular 13.56 MHz RFID standard protocols, including ISO/IEC 14443 A/B, and ISO/IEC 15693. It features a 64-byte FIFO buffer for efficient data handling, a 256-byte EEPROM for ample storage, and high transmission power for robust communication. The chip supports hi-speed SPI communication up to 10 Mbps and includes on-chip dual 80 mA 3.3 V regulators to stabilize the power supply for both the chip and external components. The RE31 reader also offers a low power consumption mode to optimize energy usage. 

Highlight Features

• Support Standard HF RFID Protocols
  • ISO/IEC 14443 A/B, All Bit Rates
  • ISO/IEC 15693, All Modes
• NFC Forum Tag Type 1, 2, 4A, 4B, 5
• Host Interface: SPI (up to 10 Mbps)
• Power-Down Mode Consumption : 1.0 μA
• On-Chip Dual 80 mA 3.3 V Regulators
• Wide Operating Voltage for Tx from 2.7 V to 7.0 V