RFID Rewritable Card 13.576MHz (PACK of 2)

Description:

This pack contains four RFID (Radio-Frequency Identification) rewritable cards operating at a frequency of 13.56MHz. These cards offer a contactless method for storing and retrieving data, making them ideal for various applications requiring secure and efficient identification or access control. Being rewritable, the data on these cards can be changed multiple times, offering flexibility and cost-effectiveness. They are often made of durable PVC or similar material for longevity.

Key Features:

• Frequency: 13.56MHz (ISO14443A standard is common)   
• Rewritable: Data can be written and rewritten multiple times.
• Contactless: Data transfer without physical contact.   
• Durable: Typically made of PVC or similar plastic material.
• Standard Size: Usually credit card sized (ISO CR80) for compatibility with card printers and readers.   
• Pack of 4: Convenient and economical pack size.
• Unique Identifier (UID): Each card has a unique serial number, allowing for individual identification.

Applications:

• Access Control: Secure entry to buildings, offices, or restricted areas.   
• Time and Attendance: Tracking employee work hours.
• Payment Systems: Contactless payment for transportation, vending machines, or small purchases.   
• Loyalty Programs: Rewarding repeat customers.
• Identification: Student IDs, membership cards, or personal identification.
• Library Management: Tracking borrowed books.
• Supply Chain Management: Tracking goods and inventory.   
• Healthcare: Patient identification and record management.

Specifications:

• Frequency: 13.56MHz   
• Standard: ISO14443A 
• Card Material: PVC   
• Card Dimensions: 85.6mm x 54mm (CR80)
• Thickness: Typically 0.76mm
• Operating Temperature: -20°C to +70°C 

DATA SHEET AND USECASE 

Key Specifications:

• Operating Frequency: 13.56 MHz
• Memory Capacity: 1K bytes EEPROM, organized into 16 sectors with 4 blocks each, compliant with ISO/IEC 14443A protocol
• Rewrite Capability: Supports over 100,000 write cycles
• Data Retention: Exceeds 10 years
• Reading Distance: Up to 100 mm, depending on the reader and antenna configuration
• Data Transfer Speed: 106 kbit/s
• Data Integrity Features: 16-bit CRC, parity checks, bit coding, and bit counting
• Anti-Collision Mechanism: Supports multiple cards within the operating range without interference