Topaz

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Broadcom's Topaz chips are the reference implementation for NFC Forum Type 1 tags, the original NFC tag specification. Topaz tags support simple read/write operations with optional one-time programmable (OTP) lock bits. While largely superseded by Type 2 and Type 4 tags in modern deployments, Topaz remains significant for backward compatibility testing and NFC standard conformance validation.

  

    Broadcom
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    Passive
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    High Frequency (13.56 MHz)
    
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    ISO 14443-3A
    
  



















  
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Broadcom's Topaz chips are the reference implementation for NFC Forum Type 1 tags, the original NFC tag specification. Topaz tags support simple read/write operations with optional one-time programmable (OTP) lock bits. While largely superseded by Type 2 and Type 4 tags in modern deployments, Topaz 

      

    

    
    

      
      

        
Browse Topaz NFC chips with their memory, features, and specifications on this page.