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

Infineon Technologies SLE 55R04 MCC2

Name: SLE 55R04 MCC2
Brand: Infineon Technologies
SKU: SLE 55R04 MCC2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SLE 55R04 MCC2

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: M2.2 Chip Card Module

Datasheet:: SLE 55R04 MCC2.pdf

Description:: IC EEPROM 770BYTE MCC2-2

Quantity:: RFQ Add To RFQ list

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Inventory:1,742

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Product details

Overview

SLE 55R04 MCC2 from Infineon Technologies is an ISO/IEC 14443 Type A contactless smart card IC with 770-byte EEPROM, integrated security logic, 13.56 MHz RF interface, 106 kbit/s data rate, and support for up to 14 key pairs - deployed in secure transit fare cards and e-government ID systems.

For engineers reviewing the SLE 55R04 datasheet, SLE 55R04 pinout, SLE 55R04 application, or SLE 55R04 equivalent, key selection criteria include sector-based hierarchical authentication, anti-tearing value counters, unchangeable access conditions in user mode, CRC/MAC data integrity, and configurable 1–15 sector memory layout.

Technical Context

The SLE 55R04 integrates a dedicated analog contactless interface (rectifier, voltage regulator, clock extractor, ASK demodulator) and a crypto unit supporting mutual 64-bit challenge/response authentication with SAM-side MAC calculation. Its control unit implements ISO/IEC 14443-3 bit-oriented anticollision for 4- or 7-byte UID cascade levels.

Memory is partitioned into Service Area (4 pages), Key Area (configurable up to 14 key pairs), and User Area (up to 15 sectors, each configurable 1–77 pages). Only one sector may be opened per session, and page-level access rights are enforced per key.

Key Specifications

Parameter	Value and Actual Design Meaning
EEPROM Size	770 bytes (77 × 10-byte pages: 8 data + 2 admin)
RF Interface	ISO/IEC 14443 Type A, 13.56 MHz carrier, 106 kbit/s transfer rate
Authentication	Mutual 64-bit secret key challenge/response with SAM-dependent MAC verification
Security Counters	Up to 65,536 units per counter; anti-tearing protection enabled per page
Endurance & Retention	≥10⁵ write/erase cycles; ≥10 years data retention at −25…+85°C
ESD Protection	Typical 4 kV HBM rating for robust handling in card personalization
Operating Distance	0–10 cm typical coupling range with standard coil antenna

Pinout & Package

Package: MCC2-2-1 module form factor for embedding in plastic contactless cards; no leadframe or solder pads - antenna terminals LA and LB are bond pads on die or internal coil connections in module.

Pin/Terminal	Circuit Role	Design Meaning
LA	Antenna terminal A	Primary connection point for external LC tank circuit; forms resonant loop with LB
LB	Antenna terminal B	Secondary connection point completing antenna coil path; enables 13.56 MHz energy harvesting

Key Features

Feature	Design Value
Hierarchical key management	Two independent keys per sector enable multi-tier access control (e.g., issuer vs. application keys)
Configurable sector architecture	1–15 sectors with programmable size (1–77 pages) supports mixed-use applications like transit + loyalty
Immutable access conditions	User-mode access rules locked after programming - prevents runtime privilege escalation
Unique chip serial number	Factory-programmed, non-rewritable UID ensures device-level traceability and anti-cloning
Anti-tearing counter operation	Atomic increment/decrement prevents partial updates during power loss in fare deduction

Applications

Public Transport Fare Card

Government E-ID Card

Use Scenario: Contactless tap-in/tap-out at metro gates with offline balance validation.

IC Role / Device Role / Timing Role: Secure storage of encrypted purse balance, transaction logs, and issuer certificates; performs mutual authentication with gate reader.

Use Value: Anti-tearing counters prevent fare deduction corruption during RF field dropout; sector isolation separates transport and loyalty data.

Use Scenario: National ID issuance with biometric template storage and digital signature capability.

IC Role / Device Role / Timing Role: Stores protected citizen identity attributes, PKI keys, and revocation status; enforces strict read/write permissions per government policy.

Use Value: Immutable access conditions and SAM-mediated MAC ensure tamper-proof credential integrity across lifecycle.

Secure Access Badge

Electronic Ticketing System

Use Scenario: Physical access control for corporate facilities using multi-factor authentication.

IC Role / Device Role / Timing Role: Holds encrypted employee profile, time-based access windows, and audit trail; authenticates against on-site SAM.

Use Value: Configurable key pairs allow department-level key hierarchies without reissuing cards.

Use Scenario: Event admission with dynamic ticket validation and seat assignment.

IC Role / Device Role / Timing Role: Stores encrypted ticket metadata, usage flags, and redemption timestamps; validates authenticity via reader-SAM handshake.

Use Value: 10 cm operating distance enables fast throughput at venue entrances; CRC/MAC prevents replay or modification attacks.

Equivalent & Alternatives

The following parts are listed as comparable options for similar contactless secure memory applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SLI52R04 (Infineon)	Same architecture but 1 kB EEPROM; enhanced SAM interface timing; identical pinout and protocol	Better suited for multi-application cards requiring larger certificate stores or extended audit logs	Select when >770 bytes persistent secure storage is required without changing system RF stack
Mifare DESFire EV1 (NXP)	Supports AES-128 instead of proprietary 64-bit crypto; native file system; higher data rate (848 kbit/s)	Designed for complex multi-application ecosystems (banking, transit, campus) with dynamic file creation	Choose for interoperability with existing MIFARE infrastructure or AES compliance mandates

Compared with SLI52R04, SLE 55R04 offers lower memory cost and simpler key management for single-purpose cards; versus MIFARE DESFire EV1, it provides deterministic low-latency authentication ideal for high-throughput transit gates but lacks file abstraction and AES.

Availability

SLE 55R04 MCC2 is available at Aetrix Electronics and suitable for public transport fare collection, government e-ID issuance, secure physical access control, and electronic ticketing systems requiring stable component supply and long-term lifecycle assurance.

Supply support for SLE 55R04 MCC2 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 systems, and automotive electronics, headquartered in Munich.

The SLE 55Rxx family was designed specifically for ISO/IEC 14443 Type A contactless smart cards requiring high-security memory partitioning, hierarchical authentication, and anti-tearing counter functionality in transit and national ID applications.

FAQ

What is the maximum number of sectors supported by SLE 55R04?

SLE 55R04 supports 1 to 15 configurable sectors in its User Area. Each sector can be sized from 1 to 77 pages (10 bytes/page), with total EEPROM capacity fixed at 770 bytes. The Service Area occupies 4 fixed pages and is not user-configurable.

Does SLE 55R04 require an external power source?

No. SLE 55R04 is a passive contactless IC that derives all operating power from the 13.56 MHz RF field generated by the reader antenna. Its integrated rectifier and voltage regulator convert induced AC into stable DC supply for internal circuitry.

How is authentication performed between SLE 55R04 and the reader?

Authentication requires a Security Access Module (SAM) at the reader side. The SAM and SLE 55R04 perform mutual 64-bit challenge/response using a shared secret key. Data integrity is verified via 32-bit MAC calculated post-authentication, with CRC-16 used for command/response framing.

Can the unique serial number be rewritten or cloned?

No. The 4- or 7-byte UID is factory-programmed, physically fused, and permanently unchangeable. It is used as a non-repudiable input to the authentication algorithm and cannot be altered, duplicated, or emulated by software or hardware means.

SLE 55R04 MCC2 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: M2.2 Chip Card Module

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Programmable:: Not Verified

Applications:: Security

Core Processor:: -

Program Memory Type:: -

Controller Series:: -

RAM Size:: -

Interface:: -

Number of I/O:: -

Voltage - Supply:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: M2.2 Chip Card Module

SLE 55R04 MCC2 FAQ

1.How can I place an order for SLE 55R04 MCC2 through Aetrix?

Please submit a Request for Quotation (RFQ) for SLE 55R04 MCC2 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 55R04 MCC2 reliable?

The price and inventory of SLE 55R04 MCC2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLE 55R04 MCC2 is usually 5 days.

3.What payment methods are accepted for SLE 55R04 MCC2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLE 55R04 MCC2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SLE 55R04 MCC2?

SLE 55R04 MCC2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SLE 55R04 MCC2 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 55R04 MCC2?

For technical support, including SLE 55R04 MCC2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLE 55R04 MCC2 requirements.

6.How does Aetrix verify that SLE 55R04 MCC2 is sourced from the original manufacturer or authorized distributors?

All SLE 55R04 MCC2 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 55R04 MCC2 meets industry standards.

7.What is the process for return or replacement of SLE 55R04 MCC2?

All SLE 55R04 MCC2 units undergo pre-shipment inspection (PSI). If there is an issue with SLE 55R04 MCC2, 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 55R04 MCC2 part is unused and in its original packaging.

Return procedure for SLE 55R04 MCC2:

1.Submit a request within 90 days.

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

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