SLE 4406SPE MFC3.1

Application Specific Microcontrollers Overview

The Infineon SLE 4406SPE MFC3.1 is an intelligent 112-bit EEPROM counter IC designed for prepaid telephone cards and security applications. It features a 16-bit ROM, 104-bit user memory, and a five-stage abacus counter supporting up to 33,352 count units. The device operates at a supply voltage of 5 V ± 10% with a maximum current of 1 mA. It includes advanced security logic, ESD protection (minimum 2,000 V), and ISO/IEC 7816 contact configuration. The component utilizes 1.2 µm CMOS technology with shielded EEPROM cells and is supplied in the S-MFC3.1-6-1 FCoS™ flip-chip package.

Application Specific Microcontrollers Feature Summary

• 112-bit EEPROM and 16-bit ROM with 104 bits of user-accessible memory
• Five-stage abacus counter with up to 33,352 count units
• Advanced security layout with shielded EEPROM cells and logical security functions
• ISO/IEC 7816 synchronous transmission interface with transport code protection

Application Specific Microcontrollers Applications

• Prepaid telephone cards
• Chip card & security systems
• Smart cards requiring secure counter functionality

Application Specific Microcontrollers Procurement Notes

Verify the specific ordering suffix MFC3.1 corresponds to the S-MFC3.1-6-1 FCoS™ package. Confirm that the third byte data programming rights align with project requirements, as this variant allows card manufacturer personalization. Ensure design compatibility with the 5V supply voltage and standard smart card contact definitions.

Application Specific Microcontrollers Selection Notes

Select the SLE 4406SPE over the SP variant when the card issuer requires 48 bits of personalization data in Identification Area 1 instead of 8 bits of manufacturer data. Choose the MFC3.1 package for flip-chip embedding in plastic cards. Verify that the required count units do not exceed the guaranteed 21,064 units if testing constraints apply.

Application Specific Microcontrollers Part Context

This component belongs to the SLE 4406SP/SPE family, which maintains functional compatibility with the legacy 4406S/06SE series. The SLE 4406SPE specifically differentiates itself by offering expanded personalization capabilities in the Identification Area 1 compared to the standard SP version.

Application Specific Microcontrollers Replacement Considerations

The datasheet notes 100% functional compatibility with the SLE 4406S and SLE 4406SE models. When replacing older variants, ensure the pinout and electrical characteristics remain consistent with the ISO/IEC 7816 standard.