SIC43NT

NFC Forum Type 2 Tag IC with Secured Rolling-Code

NFC Mutual Authentication
SIC43NT is an NFC Forum Type 2 Tag IC featuring web-based authentication feature with secure rolling code and the RF detection pin (RFD). The RFD can be configured to either wake up the MCU from sleep mode when detecting an RF field or to activate tamper evidence detection for anti-tampering purpose.

Highlight Features

• NFC Forum Type 2 Tag
• A configurable pin for three modes of operation:
  • RF field detection
  • Tamper evidence detection
  • Sleep mode
• Dynamic NDEF message
  • Contains UID, tamper evidence message, and rolling code
  • Is mirrored into the original NDEF message.
  • Can be triggered by tamper status of the tag.
• Password protection
• Tag authenticity verification using rolling code (optional)
• Secured tamper status decoding to prevent message counterfeiting (optional)

Interface and Peripheral

• RF interface based on ISO/IEC 14443A – 106 kbps
• True anti-collision
• Configurable output type in RF detection mode
  • Open-Drain Mode
  • 1.8 V-Output Mode
• • On-chip capacitance 50 pF

Memory

• Factory programmed 7-byte UID
• Lock bytes with anti-tearing protection
• 144-byte user memory
• Dedicated memory for configuration functions: Password authentication, Pin configuration, and Rolling code configuration
• Dedicated memory for timestamp and tamper status
• EEPROM organization enabling NDEF TLV messages
• EEPROM erase/write cycle up to 500,000 times
• EEPROM memory retention up to 10 years

Operating Condition

• 13.56 MHz operating radio frequency
• Operating temperature from -40 to 85°C