THD20
Cost-effective secure MCU with 80KB flash and contact interface for loyalty cards and basic security.
Product Overview
Description
The THD20 is a cost-optimized secure microcontroller designed for high-volume applications requiring basic security features.
With 80KB flash memory and contact-only interface, it targets loyalty cards, prepaid cards, and entry-level security applications.
Despite the cost focus, the chip maintains essential security features including secure memory and cryptographic acceleration.
Product Series
THD
Primary Application
Loyalty and membership cards
Key Features
- Cost-optimized design
- ISO 7816 contact interface
- Basic cryptographic acceleration
- Secure memory protection
- Low power consumption
- High-volume production optimized
Specifications
| Flash Memory | 80 KB |
|---|---|
| RAM | 4 KB |
| EEPROM | 2 KB |
| Security Level | EAL4+ |
| Interfaces | Contact (ISO 7816) |
| Cryptography | AES, DES, RSA-1024 |
Applications
Loyalty and membership cards
Electronic system design
Prepaid and gift cards
Electronic system design
Access control cards
Industrial automation and control
Transportation tickets
Electronic system design
Basic identity cards
Electronic system design
FAE Expert Insights
"The THD20 is our volume product for cost-sensitive smart card applications. I've supported deployments in loyalty programs, campus cards, and transportation systems with millions of units shipped. The cost is very competitive - often 30-40% lower than comparable NXP or Infineon products. Security is appropriate for the target applications with EAL4+ certification. While not suitable for banking, it's perfect for applications where basic security and low cost are priorities. The contact-only interface keeps costs down while supporting most card reader infrastructure."
Cost-effective solution for high-volume card applications
— Wang Hua, BeiLuo
Frequently Asked Questions
What is the difference between THD20 and THD89?
THD20 is cost-optimized with 80KB flash, EAL4+ security, and contact-only interface. THD89 is high-security with 400KB flash, EAL5+ certification, and dual interface. THD20 targets loyalty, prepaid, and basic access control. THD89 targets banking, national ID, and high-security applications. Price difference is significant - THD20 is 60-70% lower cost. Choose based on security requirements and application needs.
Use THD20 for basic security and cost sensitivity. Use THD89 for high-security requirements.
Is THD20 suitable for payment applications?
THD20 is NOT suitable for banking payment applications requiring EMV certification. EAL4+ security is insufficient for financial transactions. Limited cryptographic capabilities compared to banking requirements. Suitable for: Closed-loop prepaid systems, Loyalty point systems, Campus cards, Gift cards. For open-loop payment, use THD89 or THD86 with EAL5+ certification.
Do NOT use for banking payment. Suitable for closed-loop prepaid and loyalty.
What is the typical card lifetime with THD20?
THD20 EEPROM endurance supports: 500,000 write cycles per page. 10+ year data retention. Typical card lifetime: 3-5 years for daily-use cards. 5-10 years for occasional-use cards. End-of-life warning mechanism available. Memory management should distribute writes evenly. For longer lifetime requirements, consider THD86 with higher endurance specifications.
Suitable for 3-5 year typical card life. Use THD86 for longer lifetime requirements.
Can THD20 be used for access control?
Yes, THD20 is suitable for many access control applications: Employee badge systems with secure authentication. Visitor management with time-limited access. Parking system access cards. Gym and club membership cards. Physical access with secure challenge-response. For high-security facilities (government, data centers), consider THD89 with higher security certification.
Suitable for commercial access control. Use THD89 for high-security government applications.
What development tools are available for THD20?
THD20 development uses: Unisplendour Smart Card SDK with C compiler and debugger. Eclipse-based IDE for code development. Card emulation and testing tools. Sample applications for common use cases. Personalization tools for production. Documentation includes user manual, programming guide, and security guidelines. Training available from BeiLuo for development teams.
Contact BeiLuo for SDK and development kit. Training available for new teams.
What is the minimum order quantity for THD20?
THD20 is optimized for high-volume production: Minimum order: 10,000 units for standard products. Lower MOQ available for development and pilot projects. Volume pricing tiers: 100K, 500K, 1M+ units. Delivery: 4-6 weeks for standard orders. Faster delivery available from BeiLuo inventory for smaller quantities. Contact sales for specific pricing and delivery schedules.
Plan for 10K+ MOQ for production. Use BeiLuo inventory for smaller development quantities.