Infineon Technologies SLE 88CFX4000P C

Overview

SLE 88CFX4000P C from Infineon Technologies is a 32-bit security controller die optimized for multi-application smart cards, featuring 400 kBytes of flexible EEPROM with Flash functionality, 16 kBytes RAM, hardware-based Memory Encryption/Decryption (MED), and Common Criteria EAL5+ certification. It integrates a pipelined RISC CPU, DES accelerator, True RNG (AIS31-compliant), and Memory Management and Protection Unit (MMU) with 256 hardware-separated packages.

For engineers reviewing the SLE 88CFX4000P C datasheet, SLE 88CFX4000P C pinout, SLE 88CFX4000P C application, or SLE 88CFX4000P C equivalent, key selection considerations include ISO/IEC 7816 T=0/T=1 UART interface support, 1–10 MHz external clock range, 1.62–5.5 V supply, -25°C to +85°C operation, and hardware-enforced memory partitioning for secure multitasking in UICC/SIM environments.

Technical Context

The SLE 88CFX4000P C implements a proprietary 32-bit RISC core in 0.13 µm technology with dual cache memories for instruction and data, enabling up to 66 MHz internal clock generation via intelligent power management. Its MMU enforces strict memory isolation across 256 hardware firewalled packages, each with dedicated access rights to RAM, EEPROM, and peripherals.

Security is embedded at the silicon level: DPA/SPADEMA countermeasures, active shield, voltage/frequency/light/temperature/glitch sensors, bus/SFR encryption, and MED-protected memory ensure tamper resistance. The DES accelerator offloads symmetric crypto, while the AIS31-certified TRNG feeds cryptographic key generation.

Key Specifications

Pinout & Package

Package: Die (sawn or unsawn), bare die form factor intended for customer packaging into smart card modules (e.g., MFC5.6, M5.1) or embedded secure elements.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit secure microcontroller applications.

Compared with ST33TPHF2048 and AT90SC12872RCF, the SLE 88CFX4000P C delivers superior performance-per-millimeter via its 32-bit RISC core and hardware MMU, enabling more concurrent secure applets in tighter die area-critical for thin-profile SIM cards-while maintaining EAL5+ assurance without RF frontend overhead.

Availability

SLE 88CFX4000P C is available at Aetrix Electronics and suitable for UICC manufacturing, EMV contact card personalization, national eID programs, and secure token production requiring stable component supply, long-term lifecycle commitment, and traceable wafer-level sourcing.

Supply support for SLE 88CFX4000P C 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, headquartered in Munich.

The SLE 88 family targets high-assurance smart card applications-including SIM, eID, and banking-where hardware-enforced memory isolation, certified crypto acceleration, and ultra-low-power operation are mandatory design requirements.

FAQ

What package form does SLE 88CFX4000P C ship in?

SLE 88CFX4000P C is supplied as a bare die (sawn or unsawn), not in a molded package. It requires customer integration into wire-bonded modules (e.g., M5.x), flip-chip modules (MFCxxx), or DSO-20/TSSOP-20/QFN-10 packages per Infineon's module specifications. No leadframe or encapsulated version is offered directly by Infineon.

Does SLE 88CFX4000P C support contactless communication (e.g., ISO 14443)?

No. SLE 88CFX4000P C provides only a contact interface per ISO/IEC 7816-3 (T=0/T=1 UART). It lacks integrated RF frontend, antenna drivers, or contactless protocol stacks. For dual-interface cards, customers must pair it with a separate contactless controller or select Infineon's SLE 78 series, which integrates both contact and contactless interfaces.

Is flash programming supported after assembly into a smart card module?

Yes-SLE 88CFX4000P C supports field-upgradable Flash functionality. EEPROM is partitioned to emulate Flash sectors (4 kB), enabling over-the-air (OTA) application loading and personalization via standard T=1 commands. Programming time is <2.3 ms per page, and endurance exceeds 500,000 write/erase cycles per page.

What development tools are available for SLE 88CFX4000P C?

Infineon provides SDK 88 (software development kit), bondout-based emulator for real-time debugging, flash samples for rapid validation, and low-level drivers for UART, timers, DES, and TRNG. Application engineers offer on-site training and support for OS porting, personalization workflows, and CC EAL5+ compliance testing.