A-Series (ROM-less, advanced NVM technology)

The A-series adopted a newly developed non-volatile-memory (NVM) technology which can greatly improve the write/erase performance while keeping the resulted product at the competitive edge. No mask ROM is required such that the card operating system (COS) can be loaded into the chip just before it is issued to the field. Memory Management Unit (MMU) with firewall technology and new security features allow multiple applications can be implemented on the same chip without compromise of security. Key features of A-series are highlighted below:

  • New NVM technology for better performance
  • Flexible – NVM can be partition into program or data by user with overwrite protection
  • Short cycle time – no ROM mask is needed
  • High speed operation to shorter the personalization time
  • Long battery life – low power GSM mode
  • Memory Management Unit with firewall – support supervisor mode and user mode for multiple application environment
  • Security features to minimize the risks of unauthorized access to data inside the card

CPU core8052 high speed CPU
NVM (Bytes)160K
RAM (Bytes)256+4096
Special features* 33MHz maximum internal bus frequency at 3V
* SCI data rate > 1Mbps
* Hardware CRC per ISO 13239 standard
* MMU with firewall
* Unique identification code
* True random number generator
* 3V to 5V +/- 10% operation
* Security protection features