Adafruit
13.56MHz RFID/NFC Card [1KB]
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This blank 13.56 MHz RFID/NFC card contains a Mifare Classic 1K chip with 1 KB of writable EEPROM storage. The standard credit-card-sized form factor (ISO 78...
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This blank 13.56 MHz RFID/NFC card contains a Mifare Classic 1K chip with 1 KB of writable EEPROM storage. The standard credit-card-sized form factor (ISO 7810 ID-1) makes it suitable for access control badges, identification systems, and RFID prototyping. The embedded chip and antenna are passively powered — no battery is needed.
The chip stores data in writable EEPROM divided into banks and supports over 100,000 re-write cycles. A permanent 4-byte serial number is factory-burned into each chip for unique identification.
Key Features
- 1 KB Writable EEPROM – Divided into banks, supports 100,000+ write cycles
- Permanent 4-Byte UID – Factory-burned unique ID for identification (cannot be changed)
- Standard Card Size – Credit-card form factor for badge holders and wallets
- Passive Operation – No battery required; powered by the reader's RF field
- ISO/IEC 14443 Type A – Compatible with standard 13.56 MHz RFID readers
Specifications
- Frequency – 13.56 MHz
- Chip – Mifare Classic 1K (ISO/IEC 14443 Type A)
- Memory – 1 KB writable EEPROM
- Write Endurance – 100,000+ cycles
- UID – 4-byte permanent serial number
- Form Factor – Standard credit card size (ISO 7810 ID-1)
Ideal For
- Access control and door entry systems
- Employee or student identification badges
- RFID reader/writer prototyping and testing
- Attendance and time tracking systems
Package Contents
- 1× RFID/NFC Card (1 KB)
Jargon buster
Plain-language definitions for the technical terms used above.
- EEPROM
- A type of non-volatile memory that keeps stored data even when power is turned off. In a sensor module, it can be used to store settings or calibration data so they do not need to be re-entered every time.
- RF
- RF means radio frequency, referring to signals used for wireless communication and other high-frequency electronics. A low-noise, stable power supply is important for RF circuits because power noise can affect signal quality and measurements.
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