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Home > Products > Integrated Circuits (ICs) > Embedded > Application Specific Microcontrollers

Infineon Technologies SLE 4406SPE MFC3.1

Name: SLE 4406SPE MFC3.1
Brand: Infineon Technologies
SKU: SLE 4406SPE MFC3.1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SLE 4406SPE MFC3.1

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: MFC3.1 Chip Card Module

Datasheet:: SLE 4406SPE MFC3.1.pdf

Description:: IC EEPROM COUNTER 112BYTE MFC3.1

Quantity:: RFQ Add To RFQ list

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Inventory:4,009

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Product details

Overview

SLE 4406SPE MFC3.1 from Infineon Technologies is an intelligent 112-bit EEPROM counter IC for prepaid smart cards, featuring 104-bit user memory (64-bit ID Area 1 + 40-bit Counter Area), five-stage abacus counter up to 33,352 units, and integrated security logic including Transport Code protection and ISO/IEC 7816-compliant contact interface. It operates at 5 V ±10%, −40°C to +80°C, with 100,000 write/erase cycles and 30-year data retention.

For engineers reviewing the SLE 4406SPE MFC3.1 datasheet, SLE 4406SPE pinout, SLE 4406SPE application in prepaid telephony or secure identification, or SLE 4406SPE equivalent for chip card personalization systems, this page delivers verified functional identity, validated pin mapping, confirmed endurance and retention specs, and real-world security architecture context.

Technical Context

The SLE 4406SPE implements a synchronous ISO/IEC 7816-3 interface with CLK, RST, I/O (open-drain), VDD, and GND contacts-no internal oscillator or voltage regulator. Its control unit enforces minimum/maximum clock frequency and logical voltage thresholds to resist fault injection.

Memory organization includes 16-bit ROM (manufacturer code), 64-bit ID Area 1 (16-bit manufacturer code + 48-bit issuer-personalizable PROM), 40-bit counter area (with 1-bit PROM/EEPROM select), and 24-bit configurable blockable memory-either ID Area 2 or free Data Area-programmed during personalization by the card manufacturer.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	112-bit EEPROM + 16-bit ROM: 104-bit user-accessible (64-bit ID Area 1 + 40-bit Counter Area), plus 24-bit configurable PROM area
Counter Range	Up to 33,352 count units via five-stage abacus; 21,064 units guaranteed for test mode
Endurance	≥100,000 write/erase cycles per bit-supports repeated top-up in prepaid telephony applications
Data Retention	Minimum 30 years at TA = −40°C to +80°C-ensures long-term validity of stored serial numbers and expiry dates
ESD Protection	Min. 2,000 V HBM, typical 4,000 V-meets robustness requirements for card handling and embedding
Supply Voltage	5 V ±10%-compatible with standard ISO/IEC 7816-3 contact card readers without external regulation
Operating Temp	−40°C to +80°C ambient-validated for plastic card lamination and field deployment across climates

Pinout & Package

Flip Chip Module MFC3.1 (S-MFC3.1-6-1) with FCoS™ (Flip Chip on Substrate) construction, designed for direct embedding into PVC or PET smart cards. No external passives required; pad layout optimized for wire-bond-free assembly.

Pin/Terminal	Circuit Role	Design Meaning
VDD (C1)	Power supply input	Accepts 5 V ±10%; powers all internal logic, EEPROM programming charge pump, and security interface
RST (C2)	Active-low reset input	Resets state machine and disables counter/memory access until valid Answer-to-Reset sequence completes
CLK (C3)	Clock input	Synchronizes all memory addressing, counter increment, and data transfer; security interface validates frequency bounds
GND (C5)	Reference ground	Common return path for VDD, I/O, and internal analog blocks; critical for ESD path integrity
N.C. (C6)	No connection	Unused pad-left floating per design; no internal bonding or circuitry attached
I/O (C7)	Bi-directional open-drain data line	Transfers commands, addresses, and data using ISO/IEC 7816-3 synchronous protocol; requires external pull-up

Key Features

Feature	Design Value
Transport Code Protection	Prevents unauthorized access during delivery and pre-personalization-enables secure logistics chain for blank card stock
Configurable 24-bit Memory Block	Either 24-bit ID Area 2 (issuer-specific identifiers) or 24-bit free Data Area-enables flexible card personalization without mask change
Five-Stage Abacus Counter	Hardware-implemented counter with overflow detection and non-volatile storage-eliminates need for external microcontroller in low-cost prepaid systems
Shielded EEPROM Cells	Metal shielding over EEPROM array and secure wiring for critical signals-resists physical probing and side-channel leakage
ISO/IEC 7816-3 Compliance	Full synchronous transmission support including Answer-to-Reset timing-guarantees interoperability with global card reader infrastructure

Applications

Prepaid Telephone Cards

Secure Identification Tokens

Use Scenario: Embedded in plastic cards used for public payphones, enabling credit-based call authorization and balance decrement per minute.

IC Role / Device Role / Timing Role: Standalone counter and memory controller executing credit decrement, serial number validation, and expiry date check without host CPU involvement.

Use Value: Eliminates need for embedded MCU-reduces BOM cost and card thickness while maintaining tamper-resistant balance storage.

Use Scenario: Issued as employee access tokens with unique ID and usage counters for facility entry logging.

IC Role / Device Role / Timing Role: Stores immutable manufacturer ID, issuer-assigned credentials, and incremental access count-verified on each reader interaction.

Use Value: Prevents cloning via shielded EEPROM and abacus counter; supports audit trail via monotonic count without external clock dependency.

Public Transit Fare Cards

Low-Cost Secure Authentication Modules

Use Scenario: Integrated into disposable transit tickets where fare deduction occurs at gate readers during boarding.

IC Role / Device Role / Timing Role: Performs atomic counter decrement and ID verification in <5 ms per transaction-enabling sub-second gate throughput.

Use Value: Meets EN 1546-3 timing requirements for offline fare deduction; 30-year retention ensures ticket validity across multi-year deployments.

Use Scenario: Used in vending machines or kiosks requiring tamper-evident session counters and device-specific keys.

IC Role / Device Role / Timing Role: Stores cryptographic seed material in shielded ROM and tracks session counts in protected EEPROM-blocks replay attacks.

Use Value: Provides hardware-enforced monotonicity and memory isolation-prevents key extraction or counter rollback without destructive analysis.

Equivalent & Alternatives

The following parts are listed as comparable options for similar prepaid smart card counter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SLE 4406SP MFC3.1	8-bit manufacturer data in ID Area 1; 40-bit personalization space; no configurable 24-bit block	Limited to fixed ID/personalization layout-suitable only when issuer data fits within 40 bits	Select when legacy compatibility with SLE 4406/06E is mandatory and advanced memory flexibility is unnecessary
AT88SC0104CA-SH	1-Kbit EEPROM, 16-bit counter, DES authentication engine, 2.7–5.5 V operation	Supports cryptographic challenge-response; requires external crypto co-processor for full DES implementation	Choose when mutual authentication is required beyond simple counter-based access control

Compared with SLE 4406SP MFC3.1, the SLE 4406SPE offers expanded 48-bit issuer space and field-configurable memory, while the AT88SC0104CA-SH adds cryptographic capability at higher voltage flexibility and memory density-but lacks the abacus counter's deterministic, low-latency decrement behavior.

Availability

SLE 4406SPE MFC3.1 is available at Aetrix Electronics and suitable for prepaid telephone cards, secure identification tokens, public transit fare cards, and low-cost secure authentication modules requiring stable component supply and long-term lifecycle assurance.

Supply support for SLE 4406SPE MFC3.1 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 4406SPE belongs to Infineon's Chip Card & Security product line, engineered specifically for cost-sensitive, high-volume contact smart cards requiring tamper-resistant memory, monotonic counting, and ISO/IEC 7816 interoperability.

FAQ

What is the maximum guaranteed counter value for SLE 4406SPE MFC3.1?

The SLE 4406SPE guarantees up to 21,064 count units in test mode, though its full hardware capacity reaches 33,352 units. This guaranteed value ensures reliable operation under worst-case process/voltage/temperature corners during factory testing and field use.

How does Transport Code protection work on this device?

Transport Code is a factory-programmed 8-bit value that must be correctly transmitted during initial activation to unlock memory access. It prevents unauthorized reading or programming of blank cards during distribution and before personalization by the card issuer.

Can the 24-bit configurable memory be reprogrammed after personalization?

No-the 24-bit block (either ID Area 2 or Data Area) is permanently configured during personalization and cannot be altered afterward. Once set, it remains fixed for the life of the card, ensuring consistent memory mapping and preventing runtime reconfiguration attacks.

Is SLE 4406SPE MFC3.1 compatible with standard ISO/IEC 7816-3 readers?

Yes-it fully complies with ISO/IEC 7816-3:2006 for synchronous transmission, including Answer-to-Reset timing, clock frequency tolerance (1–5 MHz), and electrical signaling levels. No firmware or driver modifications are needed for integration with certified readers.

SLE 4406SPE MFC3.1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: *

Package/Case:: MFC3.1 Chip Card Module

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Programmable:: Not Verified

Applications:: -

Core Processor:: -

Program Memory Type:: -

Controller Series:: -

RAM Size:: -

Interface:: -

Number of I/O:: -

Voltage - Supply:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: MFC3.1 Chip Card Module

SLE 4406SPE MFC3.1 FAQ

1.How can I place an order for SLE 4406SPE MFC3.1 through Aetrix?

Please submit a Request for Quotation (RFQ) for SLE 4406SPE MFC3.1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SLE 4406SPE MFC3.1 reliable?

The price and inventory of SLE 4406SPE MFC3.1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLE 4406SPE MFC3.1 is usually 5 days.

3.What payment methods are accepted for SLE 4406SPE MFC3.1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLE 4406SPE MFC3.1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SLE 4406SPE MFC3.1?

SLE 4406SPE MFC3.1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SLE 4406SPE MFC3.1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SLE 4406SPE MFC3.1?

For technical support, including SLE 4406SPE MFC3.1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLE 4406SPE MFC3.1 requirements.

6.How does Aetrix verify that SLE 4406SPE MFC3.1 is sourced from the original manufacturer or authorized distributors?

All SLE 4406SPE MFC3.1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SLE 4406SPE MFC3.1 meets industry standards.

7.What is the process for return or replacement of SLE 4406SPE MFC3.1?

All SLE 4406SPE MFC3.1 units undergo pre-shipment inspection (PSI). If there is an issue with SLE 4406SPE MFC3.1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SLE 4406SPE MFC3.1 part is unused and in its original packaging.

Return procedure for SLE 4406SPE MFC3.1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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