EM4423
Dual-frequency NFC + UHF RAIN RFID tag IC
Full Specifications
| Manufacturer | EM Microelectronic |
|---|---|
| Frequency Category | Dual-Frequency |
| Frequency | 13.56 MHz (HF/NFC) and 860-960 MHz (UHF) |
| Protocol | ISO/IEC 14443 Type A, NFC Forum Type 2, ISO/IEC 18000-63, EPC Gen2 V2 |
| Memory | 1920-bit (240 bytes) NFC user memory; 128-bit or 224-bit EPC; 160-bit or 64-bit USER memory; 96-bit TID; 32-bit Access/Kill passwords |
| Interface | RF (contactless dual-frequency: HF 13.56 MHz, UHF 860-960 MHz) |
| Temperature Range | -40°C to +85°C |
| Form Factor | Sawn wafer, 3/6-mil thickness, gold bumps, die size 853 × 790 μm |
| Security | 32-bit Access password, 32-bit Kill password, 4-byte and 2-byte LOGIN passwords, optional security timeout, PACK authentication, 32-byte digital signature support, anti-tearing protection, privacy mode |
Engineering Brief
The EM4423 em|echo is a dual-frequency transponder IC combining NFC (13.56 MHz) and UHF RAIN RFID (860-960 MHz) on a single die with a common 96-bit unique identifier shared across both interfaces. It offers configurable memory architectures (128-bit or 224-bit EPC encodings), 1920-bit NFC user memory, and comprehensive privacy features including Untraceable command support and password-protected access. The chip provides minimum 100k write cycles, 10-year data retention, read sensitivity up to -18 dBm (UHF) and -16 dBm typical at IC level, with anti-tearing protection, ACCESS counter, and field detection capabilities across both RF interfaces for retail, authentication, and smart marketing applications.
Typical Applications
- Retail inventory and product authentication
- Supply chain management and tracking
- Smart NFC posters and advertising
- Product information and loyalty programs
- Container identification and asset control
- Stock inventory with EPC and NFC marketing services
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