• NFC active and passive Peer-to-Peer mode

– ISO/IEC 18092 - NFCIP-1 Initiator & Target

• NFC Reader/Writer mode

– NFC Forum™ Type 1/2/3/4/5 tags

– FeliCa™

– ISO/IEC 15693

– MIFARE®

• NFC Card Emulation mode

– ISO/IEC 14443 Type A & Type B

– FeliCa™

– MIFARE®

• Ultra-wideband (UWB) subsystem host control:

– Car Connectivity Consortium® (CCC) digital key (DK) phase 3

– FiRa™ (fine ranging) secure UWB use cases

External communication interfaces

• Two master SWP interfaces operating at up to 1.695 Mbit/s

• Slave I²C interface supporting Standard-mode, Fast-mode, Fast-mode Plus and

High-speed mode

Product status link

ST54K

 NFC controller, secure ultra-wideband subsystem host and secure element 

system on chip

ST54K

Data brief

DB3731 - Rev 2 - May 2021

For further information contact your local STMicroelectronics sales office.

www.st.com

• Master SPI running at up to 8 MHz dedicated to the UWB subsystem

• Slave SPI interface running at up to 26 MHz

• ISO/IEC 7816-3 interface

• General-purpose inputs/outputs (GPIOs)

Internal communication interfaces

• CLF/SE SWP digital interface

• 120 Mbits/s interprocessor communication (IPC) based on a shared internal

memory

Secure microcontroller

• Arm® SecurCore

® SC300™ 32-bit RISC core cadenced at 100 MHz

• Up to 2048 Kbytes of user Flash memory

• 2 Kbytes of memory cache

• 64 Kbytes of user RAM

• Power-saving Standby and Hibernate states

Secure operating system

• Supports state-of-the-art secure element operating systems:

– Java

® Card 3.0.5

– GlobalPlatform® 2.3 with Amdts

– EMVCo™ certification

– FeliCa™ certification

• Security-certified according to CC EAL5+

• Hardware security-enhanced DES & AES accelerators

• MIFARE Classic cryptography hardware accelerator

• NESCRYPT coprocessor for public key cryptography algorithms

Electrical characteristics

• Battery voltage support from 2.4 V to 5.0 V

• I/O dedicated voltage level (VPS_IO) from 1.62 V to 3.3 V

• Supports Class B and Class C operating conditions for external universal

integrated-circuit cards (UICCs)

• Ambient operating temperature −25 to + 85 °C

Applications

• Mobile devices

• Wearable devices

• Smartwatches

• Secure connected devices

• eSE and eSIM convergence

• Secure NFC and UWB connectivity for secure ranging