ST Life.augmented


ISO14443-B Reader IC

The CR14 is a contactless coupler that is compliant with the short range ISO14443 type-B standard. It is controlled using the two wire I²C bus.

The CR14 generates a 13.56 MHz signal on an external antenna. Transmitted data are modulated using Amplitude Shift Keying (ASK). Received data are demodulated from the PICC (Proximity integrated Coupling Card) load variation signal, induced on the antenna, using Bit Phase Shift Keying (BPSK) of a 847kHz sub-carrier. The Transmitted ASK wave is 10% modulated. The Data transfer rate between the CR14 and the PICC is 106 Kbit/s in both transmission and reception modes.

The CR14 follows the ISO14443 type-B recommendation for Radio frequency power and signal interface.

The CR14 is specifically designed for short range applications that need disposable and reusable products.

The CR14 includes an automated anti-collision mechanism that allows it to detect and select any ST short range memories that are present at the same time within its range. The anti-collision mechanism is based on the STMicroelectronics probabilistic scanning method.

The CR14 provides a complete analog interface, compliant with the ISO14443 type-B recommendations for Radio-Frequency power and signal interfacing. With it, any ISO14443 type-B PICC products can be powered and have their data transmission controlled via a simple antenna.

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Errata Sheet
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Key Features

  • Single 5 V ±500 mV supply voltage
  • SO16N package
  • Contactless communicationISO14443 type-B protocol13.56MHz carrier frequency using an external oscillator106 Kbit/s data rate36-byte input/output frame registerSupports frame answer with/without SOF/EOFCRC generation and checkAutomated ST anti-collision exchange
  • I²C communicationTwo-wire I²C serial interfaceSupports 400 kHz protocol3 chip enable pinsUp to 8 CR14 connected on the same bus

Circuit Diagram

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS4553: ISO14443 type-B contactless coupler chip with anti-collision and CRC management
2.1 392 KB

User Manual

Description Version Size
UM0672: CRX14 and CR14 reference design PCB Gerber files
1.1 333 KB

Publications and Collaterals


Description Version Size
RFID and RF memory products - Based on ISO 14443 and ISO 15693
1.1 225 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeAutomotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
CR14-MQP/1GENRNDSO-16Tube_-2.4Distributor reported inventory date: 2015-08-31
Distributor NameRegionStockMin. order
CR14-MQTP/1GENRNDSO-16Tape And Reel_-2.4No availability reported, please contact our Sales officeEcopack2-

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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