Chip vs Chip

CC2642R vs EFR32MG24

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Side-by-side comparison of CC2642R and EFR32MG24 BLE SoCs.

    
    

      
    

  


  
  
  

    
      

        A
        
CC2642R

      

      

    
    
      

        B
        
EFR32MG24

      

      

    
  

  

  
  

  






  
  

    
CC2642R vs EFR32MG24: BLE-Only Sensor Hub vs Multi-Protocol Matter Endpoint


The TI CC2642R and Silicon Labs EFR32MG24 both target battery-powered IoT endpoints but differ in protocol breadth and security architecture. CC2642R is a BLE 5.2 specialist with an autonomous Sensor Controller Engine. EFR32MG24 is Silicon Labs' premium multi-protocol SoC supporting BLE 5.3, Thread, and Zigbee 3.0 with Secure Vault High and a dedicated AI/ML hardware accelerator.




Overview


CC2642R is TI's Cortex-M4F BLE 5.2 SoC with 352 KB Flash, 80 KB RAM, Sensor Controller Engine for autonomous peripheral sampling, and ~1.4 µA standby. It is TI's flagship BLE-only endpoint chip for industrial and medical sensor nodes.


EFR32MG24 is Silicon Labs' Cortex-M33 multi-protocol SoC supporting BLE 5.3 + Thread + Zigbee 3.0 + Matter, with up to 1536 KB Flash, 256 KB RAM, Secure Vault High (the top tier of SiLabs security — PUF, anti-tamper, secure OTA, full device attestation), and a dedicated AI/ML accelerator. Deep sleep (EM2): ~1.4 µA.




Key Differences


    

  • Protocol support: EFR32MG24 supports BLE 5.3 + Thread + Zigbee + Matter; CC2642R supports BLE 5.2 only.
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  • Matter: EFR32MG24 is a flagship Matter-over-Thread endpoint chip; CC2642R does not support Thread.
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  • Security: EFR32MG24 Secure Vault High (highest tier) vs CC2642R hardware AES-128 (no PUF/attestation).
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  • AI/ML: EFR32MG24 has a dedicated ML hardware accelerator; CC2642R has no ML hardware (M4F DSP only).
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  • Sensor Controller: CC2642R's SCE autonomously samples sensors at ~0.6 µA; EFR32MG24 has no equivalent.
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  • Memory: EFR32MG24 up to 1536 KB Flash + 256 KB RAM; CC2642R 352 KB Flash + 80 KB RAM.
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  • BLE version: EFR32MG24 supports BLE 5.3 (vs CC2642R BLE 5.2) — newer LC3 codec and Auracast." data-category="LE Audio">LE Audio features.
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  • Power: Both achieve ~1.4 µA EM2/deep sleep, but EFR32MG24's multi-protocol radio manager adds scheduling overhead during active periods.
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Use Cases


Choose CC2642R for BLE-only sensor applications requiring autonomous Sensor Controller sampling — industrial monitors, medical wearable endpoints, environmental loggers — where BLE is the only required protocol and power efficiency is paramount.


Choose EFR32MG24 for Matter-over-Thread end-devices, Zigbee 3.0 smart home sensors, secure industrial IoT nodes requiring hardware attestation, and products where simultaneous BLE + Thread + Zigbee operation is a requirement.




Verdict


EFR32MG24 is the more capable chip overall — more memory, Secure Vault High, AI/ML hardware, BLE 5.3, and multi-protocol support — but CC2642R's Sensor Controller Engine remains uniquely powerful for autonomous sensor-driven applications. Choose CC2642R if BLE-only sensor acquisition dominates the design; choose EFR32MG24 if multi-protocol Matter/Thread/Zigbee support and/or hardware security certification are requirements.

  

  

  
  

  
  

    




  
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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.