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Ultralight EV1 (48 Byte) vs. ICODE SLIX

These two chips, the Ultralight EV1 (48 Byte) and the ICODE SLIX are from different NFC chip families. The Ultralight EV1 (48 Byte), manufactured by NXP belonging to the MIFARE family, and the ICODE SLIX, also manufactured by NXP.

The NXP MIFARE Ultralight® EV1 is a updated version of the very popular Ultralight chip from NXP. The original Ultralight chip dates back to 2001 and the product has been used for ticketing the world over. It’s a very simple, reliable and cost effective product. Unfortunately, there’s probably almost as many non-genuine MIFARE Ultralight chips as genuine ones. The EV1 update added an originality check feature to help counteract this.

There are two variants of the Ultralight EV1 with two memory capacities. The smaller chip has 48 bytes of usable memory (similar to the NTAG210 and NTAG210micro) and the larger has 128 bytes (similar to the NTAG212).

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

User Memory
48 Bytes
Max URL
40 Chars*
User Memory
112 Bytes
Max URL
90 Chars*
*Characters

Key Specifications

BrandNXP
Chip SeriesMIFARE
NFC ForumType 2
AvailabilityHigh
ScanStrengthHigh
BrandNXP
Chip SeriesICODE
NFC ForumType 5
AvailabilityMedium
ScanStrengthHigh

Phone compatibility

Apple
Android
Apple
Android

Typical Use Cases

  • Single Use Vouchers
  • Transport Ticketing
  • Event Ticketing
  • Marketing
  • Library
  • Asset Identification

User Features

 Ultralight EV1 (48 Byte)ICODE SLIX
Total memory (bytes)80128
User memory (bytes)48112
Max URL (chars)4090
UID (bytes)78
ECC signature -
32-bit password
UID ASCII mirror--
Scan Counter--
Counter ASCII mirror--
Lockable

Technical Specifications

 Ultralight EV1 (48 Byte)ICODE SLIX
Chip thickness75 µm / 120 µm120 μm
NFC ForumType 2Type 5
Operating Freq.13.56Mhz13.56Mhz
Data Trans. Rate106 kbit/s53 kbit/s
Input Capacitance17pF / 50pF23.5pf / 97pf
Fast read
Data retention (years)1050
Write endurance (cycles)100000 100000
Anticollision--
StandardISO/IEC 14443 AISO/IEC 15693
Release date20132010

Other popular comparisons

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  • Ultralight EV1 (48 Byte) vs NTAG424
  • Ultralight EV1 (48 Byte) vs ICODE 3
  • NFC & QR Code Management
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