MIFARE Classic EV1 1K
The NXP MIFARE Classic EV1 1K is an HF 13.56 MHz RFID tag IC, with 1024 bytes EEPROM (1 KB) organized in 16 sectors of 4 blocks, 16 bytes per block, operating at 13.56 MHz under ISO/IEC 14443 Type A.
1KB ISO 14443A, legacy ticketing and access
Full Specifications
| Manufacturer | NXP |
|---|---|
| Frequency Category | HF 13.56 MHz |
| Frequency | 13.56 MHz |
| Protocol | ISO/IEC 14443 Type A |
| Memory | 1024 bytes EEPROM (1 KB) organized in 16 sectors of 4 blocks, 16 bytes per block |
| Interface | RF contactless (two antenna coil connections LA/LB), no contact interface |
| Temperature Range | -25°C to +70°C ambient operating temperature |
| Form Factor | Bumped die on sawn wafer (8 inch 120 μm or 75 μm, 12 inch 120 μm), MOA4 module (SOT500-2), MOA8 module (SOT500-4) |
| Security | CRYPTO1 stream cipher for authentication and encryption, mutual three-pass authentication (ISO/IEC DIS 9798-2), two keys per sector, 7-byte UID or 4-byte NUID, random ID support, NXP originality check support |
Engineering Brief
The MIFARE Classic EV1 1K (MF1S50YYX_V1) is NXP's mainstream contactless smart card IC operating at 13.56 MHz with ISO/IEC 14443 Type A compliance. It features 1 KB EEPROM organized in 16 sectors with user-definable access conditions per block, supporting fast ticketing transactions under 100 ms. Security is provided via CRYPTO1 cipher with mutual three-pass authentication, two keys per sector, and optional 7-byte UID or 4-byte NUID. Delivery options include bumped wafers (8/12 inch), MOA4, and MOA8 contactless modules with 10-year data retention and 200,000 write cycles, designed for public transport, access control, parking, and loyalty applications.
Typical Applications
Standards & Compliance
Frequently Asked Questions
How much memory does the MIFARE Classic EV1 1K have?
The MIFARE Classic EV1 1K has 1024 bytes (1 KB) of EEPROM organized into 16 sectors, each containing 4 blocks of 16 bytes. This provides user-configurable storage for ticketing, access credentials, or loyalty data.
What is the difference between MIFARE Classic 1K and EV1 1K?
The MIFARE Classic EV1 1K is an improved version offering NXP originality check support, random ID feature, optional 7-byte UID or 4-byte NUID, and enhanced delivery formats. It maintains backward compatibility with legacy MIFARE Classic 1K systems while adding anti-counterfeiting features.
Is MIFARE Classic EV1 compatible with ISO 14443A readers?
Yes, the MIFARE Classic EV1 1K fully complies with ISO/IEC 14443 Type A for the RF interface and anti-collision protocol, operating at 13.56 MHz. It works with standard ISO 14443A readers and NFC-enabled devices supporting MIFARE.
How many write cycles does MIFARE Classic EV1 support?
The MIFARE Classic EV1 1K supports 200,000 write/erase cycles with 10-year data retention. This endurance makes it suitable for reusable ticketing and access applications with frequent credential updates.
What security does MIFARE Classic EV1 use?
MIFARE Classic EV1 uses CRYPTO1 stream cipher with mutual three-pass authentication based on ISO/IEC DIS 9798-2. Each sector has two independent keys (A and B) with user-definable access conditions per block, though CRYPTO1 is considered legacy encryption.
What is the typical transaction time for MIFARE Classic EV1?
MIFARE Classic EV1 1K supports fast ticketing transactions under 100 milliseconds, including RF activation, authentication, and data read/write operations. This speed makes it ideal for high-throughput transit gates and access points.
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Cross-manufacturer alternatives
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