Infineon Technologies SLE 66C84PE MFC5.6

Overview

SLE 66C84PE MFC5.6 from Infineon Technologies is a 16-bit security controller with integrated DES/3DES/AES cryptographic accelerators, 64 KB embedded Flash, and ISO/IEC 7816-3 compliant smart card interface. It operates at up to 33 MHz, supports secure boot, and is deployed in EMV-compliant payment terminals and SIM/UICC card modules.

For engineers reviewing the SLE 66C84PE MFC5.6 datasheet, SLE 66C84PE MFC5.6 pinout, SLE 66C84PE MFC5.6 application, or SLE 66C84PE MFC5.6 equivalent, key selection criteria include cryptographic algorithm support, secure memory partitioning, contact smart card interface compliance, and tamper-resistant execution environment.

Technical Context

This device implements a hardened 16-bit C166S core with MPU-enforced memory protection, dedicated crypto co-processor for symmetric cipher acceleration, and hardware-based true random number generation (TRNG) compliant with AIS-31 Class P2. It includes dual-voltage I/O (1.8 V / 3.0 V / 5.0 V) for smart card compatibility.

The security architecture integrates voltage, frequency, temperature, and light sensors for active tamper detection, coupled with zeroization logic that erases sensitive keys upon violation. Secure boot verifies signed firmware images using RSA-2048 signatures stored in immutable ROM.

Key Specifications

Pinout & Package

Package: TQFP-64 (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar security controller applications.

Compared with SLB9670 and JCOP41, the SLE 66C84PE MFC5.6 uniquely combines ISO/IEC 7816-3 interface, hardware symmetric crypto acceleration, and tamper-sensing in a single 16-bit controller - making it optimal for compact, high-assurance smart card and terminal designs requiring deterministic cryptographic latency.

Availability

SLE 66C84PE MFC5.6 is available at Aetrix Electronics and suitable for EMV payment terminals, UICC smart cards, and ePassport microcontrollers requiring stable component supply and long-term lifecycle assurance.

Supply support for SLE 66C84PE MFC5.6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.

The SLE 66 family targets high-assurance embedded security applications including payment, identity, and SIM card systems, emphasizing certified cryptography, physical tamper resistance, and smart card interoperability.

FAQ

What cryptographic algorithms does the SLE 66C84PE MFC5.6 accelerate in hardware?

The SLE 66C84PE MFC5.6 includes dedicated hardware accelerators for DES, 3DES, AES-128/192/256, and SHA-1. It does not accelerate RSA or ECC in hardware; those operations rely on software libraries executed under MPU-protected memory regions. All symmetric crypto engines meet Common Criteria EAL5+ evaluation requirements.

Does the SLE 66C84PE MFC5.6 support ISO/IEC 7816-3 at all three voltage classes?

Yes - the device supports Class A (5 V), Class B (3 V), and Class C (1.8 V) operation per ISO/IEC 7816-3. Voltage switching is controlled via dedicated I/O pins (CIO, CI, CO) and internal regulators, enabling direct connection to legacy and modern smart cards without external level shifters.

Is secure debug permanently disabled after programming?

Yes - once the Secure Debug Disable fuse is blown during production programming, JTAG and SWD interfaces are irreversibly disabled. No debug access is possible thereafter, even with physical probe attempts. This behavior is enforced by on-die logic and verified during Common Criteria certification.

What is the maximum operating frequency and associated power consumption?

The SLE 66C84PE MFC5.6 operates at up to 33 MHz. At full speed with crypto engine active and all peripherals enabled, typical active current is 12 mA at 3.3 V. In secure standby mode (CPU halted, crypto idle, RAM retention), current drops to 15 µA.