ST54J-WLCSP Active

NFC controller and Secure Element single die
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
ROHS Compliance GradeN/A
GradeIndustrial
Package NameWLCSP DIE K520 TH 450UM FLOW ST
Key Features
    • Single die integrating an NFC controller (contactless front-end – CLF) and a secure element (SE)
    • Small WLCSP81 package, ECOPACK-compliant
  • NFC controller
    • Arm® Cortex®-M3 microcontroller
    • 100% re-flashing capability for firmware update
    • Enhanced active load modulation technology
    • Enhanced TX drive up to 2 W with support of an external 5 V DC/DC converter for TX supply
    • Optimized for extremely small or metal frame antennas
    • Optimized power consumption modes
    • Ultralow power Hibernate mode with selectable field detection for low-power mode support
    • Proprietary In-Frame Synchronization (IFS) in Card Emulation (CE) to ensure stability in battery Low and Switched OFF modes
    • System clock
      • Fractional-N PLL input range of 13.56 to 76.8 MHz
      • 27.12 MHz external crystal oscillator
    • Automatic wakeup via communication interfaces, internal timers, GPIO, RF field or tag detection
  • RF communications
    • Active and passive Peer-to-Peer
      • ISO/IEC 18092 – NFCIP-1 Initiator & Target
    • Reader/Writer mode
      • NFC Forum Type 1/2/3/4/5 tags
      • ISO/IEC 15693
      • MIFARE®
      • FeliCa™
    • Card Emulation mode
      • ISO/IEC 14443 Type A & Type B
      • FeliCa
      • MIFARE
  • External communication interfaces
    • Two master SWP interfaces operating at up to 1.695 Mbit/s
    • Slave I²C interface supporting Standard, Fast, Fast-mode Plus and High Speed modes
    • Slave SPI interface up to 26 MHz
    • ISO/IEC 7816-3 interface
    • General-purpose inputs/outputs (GPIOs)
  • Internal communication interfaces
    • CLF/SE SWP interface
    • 120 Mbit/s interprocessor communication (IPC) based on a shared internal memory
  • Secure microcontroller
    • Arm® SecurCore®

The ST54J is a single-die solution integrating a contactless front-end (CLF) and a secure element called ST54J_CLF and ST54J_SE. It is designed for integration in mobile devices and NFC-compliant products.


The ST54J_CLF includes near-field communication (NFC) functions in the three operating modes: Card Emulation, Reader/Writer and Peer-to-Peer communication.


It is best in class in terms of RF output power (up to 2 W). With its outstanding output power and optimized efficiency, the ST54J driver can be connected to metal frame antennas. Thanks to improved low-power card detection sensitivity, in Reader/Writer mode, the ST54J_CLF operating in low-power mode is capable of detecting the presence of a card/tag from a distance greater than the Reader mode performance.


In Card Emulation mode, the ST54J_CLF is capable of operating without an external quartz or an external reference clock source, contributing to further reducing the current consumption of the system in low-power mode. Moreover, thanks to its improved field detection sensitivity, the ST54J_CLF is capable, in low-power mode, of detecting the presence of a reader RF field from a distance greater than the CE mode performance.


The ST54J_SE is a serial access microcontroller designed for secure mobile applications. It incorporates the most recent generation of Arm® processors for embedded secure systems. The SecurCore® SC300™ 32-bit RISC core is built on the Cortex®-M3 core, with additional security features to help protect against advanced forms of attacks.

Out of stock
$0.00
Range Unit Price Savings
1 - 500$0.000%
Contact Sales