ST21NFCA
Near field communication microcontroller-
Active
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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Datasheet
Key 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
Design Resources
TopTechnical Documentation
Product Specifications
| Description | Version | Size |
|---|---|---|
DB0555: Near field communication microcontroller
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3.0 | 238 KB |
Publications and Collaterals
Flyer
| Description | Version | Size |
|---|---|---|
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ST21NFCA and ST33F1M complete offer for NFC-enabled devices
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1.4 | 1,902 KB |
Brochure
| Description | Version | Size |
|---|---|---|
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ST’s solutions for mobile devices
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1.0.0 | 2,217 KB |
Sample & Buy
Top| Part Number | Marketing Status | Package | Operating Temperature (min) | Operating Temperature (max) | Automotive Grade | Order From ST | Unit Price (US$)* @ | Distributor Availability | RoHS Compliance Grade | Download Material Declaration** |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ST21NFCA | Active | DICE | -40 | 85 | _ | - | No data reported, please contact our Distributors | N/A | - | |||
(*) 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 st.com 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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