Product overview
Description
The ST21NFCA is a standalone chip designed for supporting 13.56 MHz contactless communication, including Near Field Communication (NFC) functions in three operating modes: card emulation, reader/writer and peer-to-peer communication.
The ST21NFCA is designed for an optimized integration with the standard communication links for a cell phone.
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All features
- ST21NFCA operating modes supported:
- Card emulation
- Reader/Writer
- Peer-to-peer communication
- Hardware features
- Enhanced 8/16-bit CPU core
- 112 Kbytes of ROM
- 4 Kbytes of RAM
- 36 Kbytes of EEPROM
- High integrated analog front end (AFE) for RF transmission and reception including automatic card and field detection modes
- Full Power and Low Power modes supported
- Optimized power consumption modes
- SIM and ST21NFCA power management functions
- 3V power supply
- Supports Class B and C for UICC (Universal Integrated Circuit Card)
- RF communications
- ISO/IEC 14443 A&B in both PICC (Proximity Card) and PCD (Proximity Coupling Device) modes
- ISO/IEC 15693 in VCD (Vicinity Coupling Device) mode
- ISO/IEC 18092 (NFCIP-1)
- NFC Forum tags types 1 to 4 supported (Topaz®, MIFARE® Ultralight, Jewel®, FeliCa™ Open Tag, ST23YR18/80 with Type 4 applet)
- Host communication interfaces
- Single Wire Protocol (SWP) interface with support for contactless tunneling mode (CLT)
- I2C Slave interface
- SPI Slave interface
- Interrupt mode for SPI and I2C interfaces
- Software features
- Includes all drivers supporting the handling and host protocols for contact and contactless interfaces
- Includes complete firmware driving switch modes between operating modes and host controller interface functions (based on [ETSI TS 102 622 HCI])
- Product configuration/patchability via I2C and SPI
- Automatic AID (Application Identifier) routing
- Dual Secure Element support
- Evaluation kit
- An evaluation board is available to evaluate the advantages of the ST21NFCA router IC and to facilitate the development of NFC, Contactless and RFID applications. Please contact ST sales office for more information.
Circuit Diagram
EDA Symbols, Footprints and 3D Models
STMicroelectronics - ST21NFCA
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