NTAG424 vs. ICODE SLIX
These two chips, the NTAG424 and the ICODE SLIX are from different NFC chip families. The NTAG424, manufactured by NXP belonging to the NTAG family, and the ICODE SLIX, also manufactured by NXP.
The authentication NTAG424 DNA chip was launched in 2019 as a replacement for the first authentication NTAG chip, the NTAG413. Hosting a wealth of security features this second generation frictionless authentication chip is now the standard for anti-counterfeit, phygital (physical to digital) and web3 based projects.
The ICODE SLIX is part of NXP's ICODE family of chips. The ICODE series is older than NXP's NTAG series and has a number of significant differences - particularly a longer 8 byte UID and a longer memory retention specification of 50 years.
Both these chips have a strong ScanStrength and will work very well with mobile phones.
Key Features
Key Specifications
| Brand | NXP |
| Chip Series | NTAG |
| NFC Forum | Type 4 |
| Availability | Low |
| ScanStrength | High |
| Brand | NXP |
| Chip Series | ICODE |
| NFC Forum | Type 5 |
| Availability | Medium |
| ScanStrength | High |
Phone compatibility
Typical Use Cases
- Anti-counterfeit
- Authentication
- Phygital
- Library
- Asset Identification
User Features
| NTAG424 | ICODE SLIX | |
|---|---|---|
| Total memory (bytes) | 416 | 128 |
| User memory (bytes) | 256 | 112 |
| Max URL (chars) | 249 | 90 |
| UID (bytes) | 7 | 8 |
| ECC signature | - | |
| 32-bit password | - | |
| UID ASCII mirror | - | |
| Scan Counter | - | |
| Counter ASCII mirror | - | |
| Lockable |
Technical Specifications
| NTAG424 | ICODE SLIX | |
|---|---|---|
| Chip thickness | 75 µm / 120 µm | 120 μm |
| NFC Forum | Type 4 | Type 5 |
| Operating Freq. | 13.56Mhz | 13.56Mhz |
| Data Trans. Rate | Up to 848 kbit/s | 53 kbit/s |
| Input Capacitance | 50 pF | 23.5pf / 97pf |
| Fast read | - | |
| Data retention (years) | 50 | 50 |
| Write endurance (cycles) | 200000 | 100000 |
| Anticollision | - | |
| Standard | ISO/IEC 14443 A | ISO/IEC 15693 |
| Release date | 2019 | 2010 |
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