MIFARE SAM AV3
NXP
This application note explains the interface and architecture of MIFARE SAM AV3.
Application NoteNxp
AN12701: MIFARE SAM AV3 - Interface and Architecture
Application note explaining host interfaces (ISO/IEC 7816, I2C) and architecture of the NXP MIFARE SAM AV3 for secure key storage and cryptography.
Overview
This application note provides a technical overview of the interface and architecture for the NXP MIFARE SAM AV3 (Secure Application Module). It details the host microcontroller interface options, specifically the ISO/IEC 7816-3 contact interface supporting high-speed communication up to 1.5 Mbps and the I2C slave interface available on HVQFN32 packages. The document describes the module's architecture, including four logical channels protected by hardware firewalls for handling independent transactions. Additionally, it covers the I2C master interface used for X-mode connections to reader ICs such as the RC52x, PN51x, and RC66x. The SAM AV3 is designed to provide secure storage for cryptographic keys (AES, TDEA, RSA) and facilitate secure communication with MIFARE products including Ultralight C, Classic, Plus, and DESFire.
Use Cases
- Secure key storage in NFC and smart card terminals
- High-speed contact interface for secure microcontroller communication
- Secure transaction processing for MIFARE DESFire and MIFARE Plus systems
- Reader terminal design using X-mode connection to NXP frontends
- Multi-channel transaction handling in ticketing or payment terminals
Topics
MIFARE SAM AV3
Secure Application Module
ISO/IEC 7816-3
I2C Slave
X-Connection
Cryptographic Key Storage
AES
TDEA
RSA
Logical Channels
NXP RC66x
NXP PN51x
Referenced Parts
MIFARE Classic
NXP
MIFARE Ultralight C, MIFARE Classic, MIFARE Plus, MIFARE DESFire, MIFARE DESFire EV1
MIFARE DESFire
NXP
MIFARE Ultralight C, MIFARE Classic, MIFARE Plus, MIFARE DESFire, MIFARE DESFire EV1
MIFARE DESFire EV1
NXP
MIFARE Ultralight C, MIFARE Classic, MIFARE Plus, MIFARE DESFire, MIFARE DESFire EV1
MIFARE DESFire EV2
NXP
MIFARE DESFire EV2 Authentication, while using SAM in S-Mode
MIFARE Plus
NXP
MIFARE Ultralight C, MIFARE Classic, MIFARE Plus, MIFARE DESFire, MIFARE DESFire EV1
MIFARE Ultralight C
NXP
MIFARE Ultralight C, MIFARE Classic, MIFARE Plus, MIFARE DESFire, MIFARE DESFire EV1
PN51x
NXP
MIFARE SAM AV3 offers ISO/IEC 7816-3 standard contact interface to the host or microcontroller and I2C interface to RC52x, PN51x and RC66x.
RC52x
NXP
MIFARE SAM AV3 offers ISO/IEC 7816-3 standard contact interface to the host or microcontroller and I2C interface to RC52x, PN51x and RC66x.
RC66x
NXP
MIFARE SAM AV3 offers ISO/IEC 7816-3 standard contact interface to the host or microcontroller and I2C interface to RC52x, PN51x and RC66x.
| MIFARE SAM AV3 | NXP | This application note explains the interface and architecture of MIFARE SAM AV3. |
| MIFARE Classic | NXP | MIFARE Ultralight C, MIFARE Classic, MIFARE Plus, MIFARE DESFire, MIFARE DESFire EV1 |
| MIFARE DESFire | NXP | MIFARE Ultralight C, MIFARE Classic, MIFARE Plus, MIFARE DESFire, MIFARE DESFire EV1 |
| MIFARE DESFire EV1 | NXP | MIFARE Ultralight C, MIFARE Classic, MIFARE Plus, MIFARE DESFire, MIFARE DESFire EV1 |
| MIFARE DESFire EV2 | NXP | MIFARE DESFire EV2 Authentication, while using SAM in S-Mode |
| MIFARE Plus | NXP | MIFARE Ultralight C, MIFARE Classic, MIFARE Plus, MIFARE DESFire, MIFARE DESFire EV1 |
| MIFARE Ultralight C | NXP | MIFARE Ultralight C, MIFARE Classic, MIFARE Plus, MIFARE DESFire, MIFARE DESFire EV1 |
| PN51x | NXP | MIFARE SAM AV3 offers ISO/IEC 7816-3 standard contact interface to the host or microcontroller and I2C interface to RC52x, PN51x and RC66x. |
| RC52x | NXP | MIFARE SAM AV3 offers ISO/IEC 7816-3 standard contact interface to the host or microcontroller and I2C interface to RC52x, PN51x and RC66x. |
| RC66x | NXP | MIFARE SAM AV3 offers ISO/IEC 7816-3 standard contact interface to the host or microcontroller and I2C interface to RC52x, PN51x and RC66x. |