| STS3922 | boostedNFC for ST31 | Proposal | SPI for Host, Smart Card Contactless interface, ISO14443 Type A,B,F | Ctless ISO14443 Type A,Ctless ISO14443 Type B,Ctless ISO14443 Type F,Smartcard Ctless interface |
| STS39230 | boostedNFC for ST21NFCC | Proposal | Digital interface to ST21NFCC, ISO14443 Type A,B,F | Ctless ISO14443 Type A,Ctless ISO14443 Type B,Ctless ISO14443 Type F,Digital interface ST21NFCC,SPI |
| STS3921 | boostedNFC for ST31 | Proposal | SPI for Host, Smart Card Contactless interface, ISO14443 Type A,B,F | Ctless ISO14443 Type A,Ctless ISO14443 Type B,Ctless ISO14443 Type F,SPI,Smartcard Ctless interface |
| ST54D | SIP (ST21NFCB controller & ST33G1M2 Secure element) | Active | SWP, ISO7816, SPI, GPIO for SE; RF, I2C, SPI, SWP for NFC controller |
| ST54E | SIP (ST21NFCC controller & ST33G1M2 Secure element) | Active | SWP, ISO7816, SPI, GPIO for SE; RF, I2C, SPI, SWP for NFC controller |
| SR31Z052 | ST31 Dual Interface ARM SC000 Secure Microcontroller with 52 Kbytes EEPROM, enhanced security , Nescrypt cryptoprocessor, RF Type A,B,B' | Active | ISO7816, ISO14443 TYPE A, B, B', VHBR |
