Secure access module provides hardware-backed key storage and cryptographic services for reader devices. It supports MIFARE Crypto1, DES, TDEA, AES up to 256 bits, RSA up to 2048 bits, ECC up to 256 bits, SHA hashing, and an AIS-31 compliant true random number generator. The contact interface operates with ISO/IEC 7816 Class A, B, and C supply ranges from 1.62 V to 5.5 V and supports high-speed baud rates up to 1.5 Mbit/s. The operating ambient temperature range is -25 °C to +85 °C.
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| Product family | MIFARE SAM AV3 secure access module |
| Contact interface standard | ISO/IEC 7816-2 and ISO/IEC 7816-3 |
| Communication protocol | ISO/IEC 7816-3 T=1 |
| Host interface | ISO/IEC 7816 contact interface |
| Optional host interface | I2C slave mode on HVQFN package |
| Maximum high-speed baud rate | 1.5Mbit/s |
| Supply voltage Class A | 4.5 to 5.5V |
| Supply voltage Class B | 2.7 to 3.3V |
| Supply voltage Class C | 1.62 to 1.98V |
| Operating ambient temperature | -25 to +85°C |
| Symmetric key storage | 128entries |
| RSA key storage | 3entries |
| ECC public key storage | 8entries |
| EMV CA public key storage | 48entries |
| Supported AES key sizes | 128, 192, 256bits |
| Supported RSA key size | Up to 2048bits |
| Supported ECC key size | Up to 256bits |
| Programmable logic EEPROM | Up to 32kB |
| Programmable logic RAM | 1kB |
| Storage temperature | -55 to +125°C |
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A guide for the MIFARE SAM AV3 secure application module, detailing cryptographic features, package options, ISO/IEC 7816 and I2C interfaces, and hardware design considerations.
