Chip vs Chip

EFR32MG24 vs CYW20820

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Side-by-side comparison of EFR32MG24 and CYW20820 BLE SoCs.

    
    

      
    

  


  
  
  

    
      

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EFR32MG24

      

      

    
    
      

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CYW20820

      

      

    
  

  

  
  

  






  
  

    
EFR32MG24 vs CYW20820: Matter/AI IoT Platform vs Dual-Mode Automotive BLE SoC


Overview


The EFR32MG24 and Infineon's CYW20820 serve overlapping but distinct segments of the wireless SoC market. The EFR32MG24 is Silicon Labs' premium IoT platform designed around Thread/Wi-Fi." data-category="Protocols & Profiles">Matter certification, concurrent multiprotocol operation, and on-device AI/ML inference. The CYW20820 is a dual-mode (Classic + BLE) Bluetooth SoC from Infineon, AEC-Q100 automotive-qualified, and oriented toward automotive infotainment, industrial wireless, and enterprise Bluetooth mesh applications.


The EFR32MG24 is purely a BLE/IEEE 802.15.4 platform: it supports BLE 5.3, Thread, Zigbee, and Matter, but it does not include a Bluetooth Classic (BR/EDR) radio. This is appropriate for the smart home IoT domain where all modern devices are BLE-centric, but it limits interoperability with legacy Bluetooth Classic audio and serial port profiles.


The CYW20820 adds Bluetooth Classic alongside BLE 5.2, enabling A2DP audio streaming, HFP telephony, and SPP serial profiles alongside low-power BLE data connections. Its AEC-Q100 Grade 1 qualification certifies reliable operation from -40°C to 105°C across automotive thermal cycles. Infineon's WICED (Wireless Internet Connectivity for Embedded Devices) SDK supports Bluetooth mesh, enabling the CYW20820 to act as a mesh relay, proxy, or Friend node in large enterprise or factory installations.




Key Differences


    

  • Radio modes: CYW20820 supports dual-mode Bluetooth Classic + BLE 5.2; EFR32MG24 supports BLE 5.3 + Thread + Zigbee + Matter (no Classic Bluetooth).
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  • Automotive qualification: CYW20820 is AEC-Q100 Grade 1; EFR32MG24 is not automotive-qualified.
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  • AI/ML: EFR32MG24 includes an MVP hardware accelerator for TensorFlow Lite Micro; CYW20820 has no ML hardware.
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  • Matter: EFR32MG24 is a Matter reference platform; CYW20820 does not support Matter or Thread.
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  • Security: EFR32MG24 provides Secure Vault High; CYW20820 provides secure boot and hardware AES, oriented toward Bluetooth content protection rather than IoT device attestation.
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  • Temperature range: CYW20820 operates from -40°C to 105°C (automotive); EFR32MG24 covers -40°C to 85°C (industrial/commercial).
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  • Memory: EFR32MG24 has 1536 KB Flash / 256 KB RAM; CYW20820's memory architecture differs (external SPI Flash supported).
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Use Cases


EFR32MG24 is ideal for:
- Matter-certified smart home devices (thermostats, lighting, plugs, sensors)
- Thread border routers and BLE + Zigbee multiprotocol hubs
- On-device ML inference applications in smart buildings and industrial IoT
- Silicon Labs ecosystem products requiring Secure Vault High and OTA dual-bank updates


CYW20820 is ideal for:
- Automotive head units and telematics requiring both Bluetooth Classic audio and BLE data links
- Industrial Bluetooth mesh infrastructure operating across automotive-grade temperature ranges
- Enterprise wireless solutions needing backward compatibility with Classic Bluetooth peripherals
- Automotive AEC-Q100 applications where EFR32MG24's non-automotive grade is not acceptable




Verdict


These chips address different market segments. Choose the EFR32MG24 for Matter and Thread-based smart home IoT, AI/ML inference, and advanced security. Choose the CYW20820 when Bluetooth Classic backward compatibility, AEC-Q100 automotive qualification, or extended industrial temperature operation are requirements — none of which the EFR32MG24 is designed to meet.

  

  

  
  

  
  

    




  
Frequently Asked Questions


  

    
    

      
      

        
Our comparisons use verified datasheet specifications to create side-by-side tables. Each comparison includes a verdict explaining when to choose each option based on your project requirements.