MIFARE Classic 1k (4UID) – Infineon

MIFARE Classic 1k (4UID) – Infineon

Buy MIFARE Classic 1k (4UID) – Infineon

MIFARE Classic 1k (4UID) – Infineon is a contactless RFID smart card featuring the Infineon SLE 66R35 MIFARE Classic 1K chip with a 4-byte UID. Designed for reliable contactless identification, access control, RFID systems, membership cards, and other smart card applications, this MIFARE Classic 1K card provides a practical solution for projects requiring a 4-byte UID.

AFT India supplies Infineon SLE66R35 MIFARE Classic 1K 4-byte UID cards for business, system integrators, developers, and custom RFID card projects. The cards can be customized for your application, including card printing and other requirements.

MIFARE Classic 1k (4UID) – Infineon is in stock. Contact AFT India for current pricing, customization options, bulk quantities, and a custom card quotation of MIFARE Classic 1k (4UID) – Infineon.

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SKU: MIFARE Classic 1k (4UID) – Infineon

When requesting a quotation, specify the required SLE 66R35 variant, 4-byte identifier requirement, card quantity, printing requirements and application so the correct card configuration can be supplied.

MIFARE Classic 1k (4UID) – Infineon: Features

• Infineon SLE 66R35 contactless memory chip
• 1 KByte EEPROM memory
• 4-byte UID variant available
• 13.56 MHz operating frequency
• ISO/IEC 14443-2 and ISO/IEC 14443-3 Type A compliant contactless interface
• 106 kbit/s data rate
• Contactless transmission of data and power
• Built-in anticollision, allowing multiple cards in the RF field
• Typical read/write distance of up to 10 cm or more, depending on reader, antenna and card design
• Typical transaction time under 100 ms
• 16 sectors, with 4 blocks per sector
• 16 bytes per block
• User-definable access conditions for individual memory blocks
• EEPROM update time less than 4 ms per block
• More than 100,000 erase/write cycles
• Data retention of more than 10 years
• Three-pass mutual authentication
• 48-bit security keys
• 2 keys per sector
• RF-channel data encryption
• CRC and parity-based data integrity mechanisms
• Dedicated value-counter functionality
• ESD protection typically 2 kV
• Chip operating temperature: −25°C to +70°C

Specifications

Specification	MIFARE Classic 1k (4UID) – Infineon
Chip	Infineon SLE 66R35
Memory	1 KByte EEPROM
User EEPROM	768 bytes
Administrative EEPROM	256 bytes
UID	4-byte variant
Technology	MIFARE-compatible contactless memory
Frequency	13.56 MHz
Interface	ISO/IEC 14443 Type A
Data Rate	106 kbit/s
Memory Organization	16 sectors × 4 blocks × 16 bytes
Authentication	Mutual three-pass authentication
Key Length	48-bit
Keys	2 keys per sector
Read/Write Range	Typically up to 10 cm+*
Write Endurance	>100,000 cycles
Data Retention	>10 years
Transaction Time	Typically <100 ms
Security	Access conditions, authentication, RF data encryption
Data Integrity	CRC, parity checks
Operating Temperature	−25°C to +70°C
Applications	Access management, transport ticketing, RFID systems

*Actual operating distance depends on the reader, antenna, card construction and RF environment.

MIFARE Classic 1k Infineon vs NXP MIFARE Classic EV1 1K

The Infineon SLE 66R35 and NXP MIFARE Classic EV1 1K target similar 13.56 MHz ISO/IEC 14443 Type A contactless applications, but the chip implementations and identifier options differ.

Specification	MIFARE Classic 1K – Infineon SLE 66R35	NXP MIFARE Classic EV1 1K
Manufacturer	Infineon Technologies	NXP Semiconductors
Product	SLE 66R35	MF1S50YYX/V1
Memory	1 KByte EEPROM	1 KByte EEPROM
User EEPROM	768 bytes	752 bytes application data*
Frequency	13.56 MHz	13.56 MHz
Interface	ISO/IEC 14443-2/-3 Type A	ISO/IEC 14443-3 Type A
Data Rate	106 kbit/s	106 kbit/s
Memory Organization	16 sectors × 4 blocks × 16 bytes	16 sectors × 4 blocks × 16 bytes
Authentication	Mutual three-pass	Mutual three-pass
Key Length	48-bit	48-bit
Keys per Sector	2	2
Identifier Options	4-byte FNUID / 4-byte reused ID; other SLE 66R35 variants support 7-byte UID	4-byte NUID or 7-byte UID
Anti-Collision	Yes	Yes
RF Data Encryption	Yes	CRYPTO1
Value Counter	Yes	Yes
Read/Write Distance	Typically 10 cm and above, depending on reader/inlay	Up to 100 mm, depending on antenna
Typical Transaction	<100 ms	<100 ms
Write Endurance	>100,000 cycles	100,000–200,000 cycles depending on conditions
Data Retention	>10 years	10 years
Main Applications	Transport ticketing, access management, event ticketing, micropayment	Transport, access control, identification, ticketing and other MIFARE Classic applications