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Ultra-wideband (UWB) is a short-range wireless technology designed for precise ranging and positioning. By transmitting very short radio pulses over a wide frequency band, UWB enables centimeter-level distance accuracy and low-latency updates, even in complex outdoor environments. UWB is essential wherever real-time location, secure detection, and robust performance in harsh radio frequency (RF) conditions are required.

STMicroelectronics provides several UWB solutions for automotive and consumer markets compliant with the IEEE 802.15.4z and the new 802.15.4ab standard. These solutions enable safer vehicles with reliable in-cabin sensing and regulation-compliant child presence detection (CPD), as well as hassle-free access control and smooth user experiences in automotive and smart home applications. The ST64UWB portfolio supports the latest industry standards, including FiRa, CCC Digital Key, Aliro, and CSA, and operates seamlessly with nearly all smartphones.

Autmotive applications

Digital key and hands-free access
Child presence detection (CPD)
Vehicle localization “find my car"

Consumer applications

Access control (Aliro)
Presence-aware automation
Object sensing

Product types

UWB + NB + Radar UWB + NB
ST64UWB-A500 Digital key, child presence detection, and object sensing
ST64UWB-A100 Digital key and vehicle localization
ST64UWB-C100 Digital key (Aliro) and personalized home services
Automotive Consumer

ST64UWB-A100

Optimized UWB+NB distance ranging for automotive.

Next-gen automotive UWB two-in-one solution delivers a truly seamless digital-key access experience.

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ST64UWB-A500

UWB+NB ranging and radar sensing for automotive.

Three-in-one automotive UWB solution combines an in-cabin protection, radar sensing, with a seamless access experience.

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ST64UWB-C100

UWB+NB distance ranging covering smart homes.

Ensures robust, reliable distance-ranging for CSA and Aliro access applications, even in challenging NLOS conditions.

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Benefits

  • Single-chip UWB ranging and radar solution for presence detection, advanced sensing, and accurate distance measurement
  • Fully compatible with IEEE 802.15.4z
  • Compliant with IEEE 802.15.4ab (narrowband-assisted MMS)
  • High link-budget, robust ranging resilient to body attenuation, enabling a premium user experience
  • Reliable radar to help meet in-car child presence detection (CPD) regulations
  • Single solution combining ranging and radar for minimized system cost
  • SESIP Level 3–certified secure enclave providing tamper-resistant key storage and high-performance cryptography co-processing
  • Arm® Cortex®-M85 core for high processing headroom
  • Supports major UWB ecosystems: FiRa, CCC Digital Key, CSA, Aliro, and more