ACS develops smart card operating systems (ACOS) as its intellectual property. Developed by our dedicated team of specialists, the ACOS3 Microprocessor Card unlocks the potential of a smart card. It enables a single card to support various applications such as loyalty program, parking registration, access control, eID, and electronic purse.
ACOS3 is specifically designed for highly secure payment applications. Featuring a high degree of security, ACOS3 is particularly suitable for secure loyalty programs, identification and e-Purse applications. Likewise, it may be utilized for common payment solutions.
Additionally, security provided by ACOS3 may be further enhanced by utilizing ACOS6-SAM, which, by enabling Mutual Authentication, Secure Messaging, Key Diversification and Key Injection, perfectly secures various applications.

- 8KB of EEPROM memory for application data
- Compliance with ISO 14443 Parts 1, 2, 3, and 4
- Fully compatible with ISO14443A
- Supports T = CL protocol
- Supports high-speed transmission rate from 106 to 848 kbps
- Supports DES/3DES and MAC
- Has five secret codes + Issuer code
- Has PIN code that may be updated by the card holder
- Supports Key Pair for Mutual Authentication
- Supports Session Key based on FIPS140-2 compliant true random numbers
- Supports Secure Messaging to ensure that the data is secured from third party attacks
- Supports Account File Data Structure that can be enabled for secure purse/payment applications
Manuals & Datasheets for ACOS3 (CL) |
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Product Presentation Product Presentation of ACOS3 Contact/Contactless/Combi card |
Functional Specification Functional Specification of ACOS3 Microprocessor Card (Contactless) |
Reference Manual Reference Manual of ACOS3 Microprocessor Card (Contactless) |