Infineon Technologies SLE 66C44PE M5.1

Overview

SLE 66C44PE M5.1 from Infineon Technologies is an 8/16-bit security controller IC designed for embedded smart card applications, featuring 68-Kbyte ROM, 2304-Byte RAM (256-byte IRAM + 2048-byte XRAM), 4-Kbyte MicroSlim-EEPROM, dual-key Triple DES accelerator, and ISO/IEC 7816 UART interface. It operates across 1.8 V / 3.0 V / 5.0 V supply rails with internal PLL-adjustable clock up to 33 MHz and supports EAL5+ certification targeting EMV payment and GSM/UICC identity cards.

For engineers reviewing the SLE 66C44PE M5.1 datasheet, SLE 66C44PE M5.1 pinout, SLE 66C44PE M5.1 application in chip card personalization or secure multi-application OS deployment, or SLE 66C44PE M5.1 equivalent for UICC/GSM-compliant smart card controllers, this page delivers verified technical context, memory mapping, cryptographic timing data, and package-specific electrical behavior.

Technical Context

The SLE 66C44PE implements a hardened ECO2000 CPU core-opcode-compatible with SAB 8051 but delivering up to 18× faster execution via internal PLL ×3 mode-and integrates a dedicated hardware Dual Key Triple DES accelerator achieving 5.3 µs encryption per 64-bit block at 33 MHz internal clock. Its Memory Management Unit enables secure OS/application separation with 16 configurable segments and supports code execution from XRAM.

Security architecture includes true random number generation, active shield with attack detection, glitch/voltage/frequency/light/temperature sensors with life-test function, bus confusion, and MED-based memory encryption for ROM/EEPROM/XRAM. The chip meets GSM current limits (<4 mA @ 1.98 V) and supports T=0/T=1 protocols over its ISO/IEC 7816-compliant UART.

Key Specifications

Pinout & Package

Package: M5.1 - wire-bonded module optimized for embedding into plastic smart cards (contact-based ISO/IEC 7816 form factor).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SLE 66C80PE and SLE 78CLXXF, the SLE 66C44PE provides the most cost-effective path for EMV-compliant payment cards and GSM UICC modules where SAB 8051 compatibility, 68 KB ROM, and proven DDES latency are primary selection criteria.

Availability

SLE 66C44PE M5.1 is available at Aetrix Electronics and suitable for EMV payment card manufacturing, GSM/UICC identity module production, and secure multi-application smart card personalization requiring stable component supply and long-term lifecycle support.

Supply support for SLE 66C44PE M5.1 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 AG is a German semiconductor manufacturer specializing in security ICs, power management, and automotive electronics, with headquarters in Munich and global R&D centers.

The SLE 66C44PE belongs to Infineon's Security & Chip Card ICs product line, engineered specifically for high-assurance contact smart cards in financial, telecom, and government ID applications requiring Common Criteria EAL5+ readiness and ISO/IEC 7816 compliance.

FAQ

What is the maximum supported external clock frequency for SLE 66C44PE M5.1?

The SLE 66C44PE M5.1 accepts an external clock input from 1 MHz to 7.5 MHz, as specified in the Short Product Information v01.05. This range feeds the internal PLL, which multiplies the signal to generate internal frequencies up to 33 MHz. Operation outside this range may cause undefined behavior or failure to initialize the security logic.

Does SLE 66C44PE M5.1 support contactless communication?

No, the SLE 66C44PE M5.1 is a contact-only smart card controller with a single ISO/IEC 7816-3 UART (I/O pin) and no integrated RF frontend or contactless protocol stack. It does not support ISO/IEC 14443 or NFC standards. For dual-interface use, external RF controller co-location is required.

Is the 4-Kbyte MicroSlim-EEPROM field-programmable after personalization?

Yes, the 4-Kbyte MicroSlim-EEPROM remains fully programmable post-personalization, including byte-wise and flexible page-mode (1–64 bytes) writes. Its 500,000 write/erase cycles per page and on-chip programming voltage generator enable repeated customer data updates in deployed cards, such as loyalty point balances or OTA configuration changes.

What certifications has the SLE 66C44PE M5.1 achieved?

The SLE 66C44PE is targeted for CC EAL5+ certification per BSI-PP-0002 and VISA Level 3 compliance. While the preliminary documentation states "planned" certification, Infineon's qualification reports and chip delivery specifications confirm alignment with these assurance levels. Final certification status must be verified against the latest BSI or VISA published lists.