Chip vs Chip

MIFARE DESFire Light vs ST25DV

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MIFARE DESFire Light offers 640 bytes memory with AES-128 + LRP security, making it ideal for transit tickets, loyalty, micro-payment tokens. ST25DV provides 4-64 Kbit with 64-bit password + configurable areas security, suited for IoT sensors, smart labels, energy harvesting, BLE pairing.

    
  


  
  
  

    
      
MIFARE DESFire Light

      

        
FamilyMIFARE

        
Memory640 bytes (user: 480 B)

        
Price$0.300 – $0.650

      

    
    
      
ST25DV

      

        
FamilyST25

        
Memory4096 bytes (user: 4096 B)

        
Price$0.400 – $1.000

      

    
  

  

  
  

  






  
  

    
MIFARE DESFire Light vs ST25DV


DESFire Light is a disposable transit ticket chip. ST25DV is a dual-interface IoT tag
with I2C connectivity and energy harvesting. They serve different system architectures
and application domains.




Overview


MIFARE DESFire Light: ISO 14443-4 (NFC-A subset), AES-128 + LRP, 640 bytes, single
application, fixed file structure. Optimized for disposable transit and loyalty tickets.


ST25DV: ISO 15693 (NFC-V), I2C interface, energy harvesting, 512 B – 8 KB, up to 4
configurable access areas with independent 64-bit passwords. Optimized for IoT sensor
data bridging.




Key Differences


    

  • Interface: DESFire Light is RF-only. ST25DV adds I2C for MCU integration.
    • 

  • Protocol: DESFire Light uses ISO 14443-4 (NFC-A). ST25DV uses ISO 15693 (NFC-V).
    • 

  • Security: DESFire Light provides AES-128 authentication/" class="glossary-term-link" data-term="mutual authentication" data-definition="Two-way identity verification between reader and tag" data-category="Security">mutual authentication. ST25DV provides
  64-bit passwords — no mutual authentication.
    • 

  • Energy harvesting: ST25DV can harvest RF energy to power external circuits.
  DESFire Light cannot.
    • 

  • Memory: DESFire Light 640 bytes; ST25DV up to 8 KB.
    • 

  • Architecture fit: DESFire Light is a card inlay chip for tickets. ST25DV is a
  PCB-mounted component for IoT devices.
    • 





Technical Comparison






Parameter
MIFARE DESFire Light
ST25DV






Standard
ISO 14443-4 (NFC-A subset)
ISO 15693 (NFC-V)




Host interface
None
I2C




Memory
640 bytes
512 B – 8 KB




Read range
0–10 cm
0–100 cm




Energy harvesting
No
Yes




Security
AES-128, LRP
64-bit password




Mutual authentication
Yes
No




Typical cost (volume)
$0.12–$0.28
$0.50–$1.50








Verdict


Different application domains and system architectures. DESFire Light for AES-secured
disposable transit tickets. ST25DV for IoT sensor nodes requiring MCU-to-NFC data
bridging and optionally RF energy harvesting. Not substitutes.

  

  

  
  
  

    
Recommendation

    
Choose MIFARE DESFire Light when you need DESFire security in a cost-optimized package; choose ST25DV when you need dual-interface (NFC + I2C) with energy harvesting.