Chip vs Chip

CC2642R vs DA14531

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Side-by-side comparison of CC2642R and DA14531 BLE SoCs.

    
    

      
    

  


  
  
  

    
      

        A
        
CC2642R

      

      

    
    
      

        B
        
DA14531

      

      

    
  

  

  
  

  






  
  

    
CC2642R vs DA14531: Industrial BLE Sensor Hub vs World's Smallest BLE Beacon


The TI CC2642R and Dialog DA14531 are both BLE 5.x ultra-low-power chips but differ in scale and capability. CC2642R is a capable Cortex-M4F sensor hub with an autonomous Sensor Controller Engine and 80 KB RAM for complex sensor applications. DA14531 is Dialog's 2 mm micro-beacon — the world's smallest BLE chip, designed for disposable tags, coin-cell buttons, and smart labels where physical size and absolute minimum power are the primary constraints.




Overview


CC2642R features a 48 MHz Cortex-M4F (FPU, DSP instructions), 352 KB Flash, 80 KB RAM, a dedicated Sensor Controller Engine (autonomous ADC/I2C/SPI sampling), ~1.4 µA standby, ~5.4 mA BLE RX, and industrial temperature support. It is TI's industrial BLE SoC for complex sensor nodes.


DA14531 is a 16 MHz Cortex-M0+ in a 2 × 2 mm (WLCSP) package with 48 KB OTP Flash, 48 KB RAM, 1.5 µA hibernation current, ~1 mA advertising current, and operation down to 1.1 V supply. Its Flash is OTP (one-time programmable) — firmware is written at production and cannot be field-updated. It targets CR2032 beacons, disposable sensors, and ultra-small form factor BLE transmitters.




Key Differences


    

  • Package size: DA14531 is 2 × 2 mm WLCSP — one of the smallest BLE SoCs on the market; CC2642R is a 7 × 7 mm QFN or larger.
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  • Reprogrammability: DA14531 uses OTP Flash — firmware is immutable after production; CC2642R has standard Flash with full OTA update capability.
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  • CPU performance: CC2642R M4F at 48 MHz (DSP, FPU) vs DA14531 M0+ at 16 MHz — CC2642R handles complex sensor fusion; DA14531 handles simple advertising loops.
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  • Memory: CC2642R 352 KB Flash + 80 KB RAM vs DA14531 48 KB OTP + 48 KB RAM — CC2642R can run sophisticated applications.
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  • Sensor Controller: CC2642R's SCE autonomously samples peripherals at ~0.6 µA; DA14531 has no equivalent (M0+ handles sensor reads, then sleeps).
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  • Minimum voltage: DA14531 operates from 1.1 V — viable on a deeply discharged CR2032; CC2642R requires ~1.8 V minimum.
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  • Industrial: CC2642R has industrial temperature variants; DA14531 is consumer-grade.
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  • Application complexity: CC2642R supports complex RTOS-based applications with multiple BLE connections; DA14531 handles simple beacon/peripheral applications.
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Use Cases


Choose CC2642R for industrial wireless sensor networks, complex BLE peripherals with on-device signal processing, medical device endpoints requiring sensor fusion, and any application needing OTA firmware updates or complex ATT">gatt-service/" class="glossary-term-link" data-term="GATT service" data-definition="Collection of related BLE characteristics." data-category="GATT & ATT">GATT service structures.


Choose DA14531 for disposable asset tags, coin-cell smart buttons, retail shelf labels, BLE beacons with simple advertisement payloads, minimal medical patches where reprogrammability is not needed, and any design where PCB area is under 5 mm².




Verdict


DA14531 wins when the product must be tiny and cheap with a fixed firmware. CC2642R wins when the sensor node needs complex data processing, OTA updates, or autonomous peripheral sampling via its Sensor Controller Engine. For a beacon that advertises temperature and is thrown away after 2 years — DA14531. For a reusable industrial sensor hub running a full BLE peripheral profile with RTOS — CC2642R.

  

  

  
  

  
  

    




  
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.