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Microchip Technology AT88RF04C-MVB1G

Part No.:
AT88RF04C-MVB1G
Manufacturer:
Microchip Technology
Category:
RFID Transponders, Tags
Package:
Datasheet:
AetrixAT88RF04C-MVB1G.pdf
Description:
RFID TAG R/W 13.56MHZ INLAY
Quantity:
Payment:
Payment
Shipping:
Shipping

Inventory:2,342

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Product details

Overview

AT88RF04C-MVB1G from Microchip Technology (formerly Atmel) is a contactless 13.56 MHz RF EEPROM memory IC compliant with ISO/IEC 14443-2 and -3 Type B standards, featuring 4 kbit user memory (four 128-byte zones), 2 kbit configuration memory, integrated 82 pF tuning capacitor, and 64-bit mutual authentication under ELVA license. It operates across −40°C to +85°C and delivers 100,000 write cycles with 10-year data retention at 55°C - deployed in secure RFID smart cards and access tokens.

For engineers reviewing the AT88RF04C-MVB1G datasheet, AT88RF04C-MVB1G pinout, AT88RF04C-MVB1G application, or AT88RF04C-MVB1G equivalent, key selection criteria include ISO/IEC 14443-3 Type B anticollision support, zone-level password/key access control, anti-tearing protection, transport password ($30 1D D2), and compatibility with multi-protocol readers tolerant of Type A signaling.

Technical Context

The AT88RF04C-MVB1G implements a fully self-contained RF interface with on-die rectifier, regulator, clock extraction, and modulator - powered solely by the reader's 13.56 MHz field, requiring no battery or external power supply. Its RF front-end includes an integrated 82 pF tuning capacitor (±10 pF) between AC1 and AC2 pins, enabling operation with only a single external coil antenna.

Security operations are structured in three hierarchical communication modes: Standard (clear-text), Authentication (password/key-verified), and Encryption (64-bit stream cipher active). Each of the four user zones supports independent access rights, four 24-bit password sets, four 64-bit key sets, and dedicated attempt counters - all programmable and fuse-locked in configuration memory.

Key Specifications

ParameterValue and Actual Design Meaning
RF Interface13.56 MHz ISO/IEC 14443-2 & -3 Type B compliant; enables interoperability with standard B-mode readers and anticollision infrastructure.
User Memory4 kbit EEPROM split into four 128-byte zones; supports byte/page/partial-page writes and self-timed write cycles.
Configuration Memory2 kbit EEPROM storing AFI, polling response, keys, passwords, and security fuses; access controlled via transport password $30 1D D2.
Authentication64-bit Mutual Authentication Protocol (ELVA licensed); provides cryptographic session establishment before encrypted data exchange.
Reliability100,000 write cycles per byte; 10-year data retention at 55°C; anti-tearing function ensures atomicity during power-loss events.
Operating Temp−40°C to +85°C industrial range; validated for embedded RFID tags in harsh environmental deployments.
Tuning Capacitance82 pF nominal (±10 pF) between AC1–AC2; eliminates need for external capacitor in antenna matching network.

Pinout & Package

AT88RF04C-MVB1G is supplied in an epoxy-glass RFID tag package measuring 8.6 mm × 18.1 mm (MVA1 footprint), with two terminals: AC1 and AC2. The device uses a planar coil antenna connected across these pins; no VDD/VSS pins are present as power is harvested from the RF field.

Pin/TerminalCircuit RoleDesign Meaning
AC1RF Antenna Terminal 1Anode-side connection to external coil; forms resonant LC tank with internal 82 pF capacitor for 13.56 MHz operation.
AC2RF Antenna Terminal 2Cathode-side connection to external coil; completes resonant circuit; no DC bias or voltage reference required.

Key Features

FeatureDesign Value
ISO/IEC 14443-3 Slot-MARKER AnticollisionEnables reliable multi-card identification in dense RF fields without reader firmware modification.
Four Independent User ZonesAllows segregation of credential, audit log, transaction history, and personalization data with distinct access policies per zone.
Secure Personalization ModeEncrypts secrets during initial programming using host-derived keys, preventing exposure of keys over-the-air during provisioning.
Transport Password ProtectionHardcoded $30 1D D2 password gates access to configuration memory - prevents unauthorized reprogramming of security parameters.
Tamper Sensors & Attempt CountersDetects physical intrusion attempts and limits brute-force password/key trials, enforcing lockout after configurable threshold breaches.

Applications

Physical Access Control CardGovernment ID Token

Use Scenario: Contactless badge used for door entry in corporate facilities with layered credentialing (employee + contractor + visitor).

IC Role / Device Role / Timing Role: Secure memory storage for biometric templates, access privileges, and revocation status - authenticated via 64-bit mutual challenge-response.

Use Value: Zone-level password isolation prevents compromise of one credential set from affecting others; anti-tearing ensures integrity during mid-read/write power loss near door readers.

Use Scenario: National e-ID card storing citizen identity, digital signature keys, and health entitlements under PKI infrastructure.

IC Role / Device Role / Timing Role: Tamper-resistant CryptoRF storage for private keys and attestation certificates - accessed only after successful AFI-filtered anticollision and mutual authentication.

Use Value: Configuration memory fuses permanently lock cryptographic secrets post-personalization; 10-year data retention meets sovereign ID lifecycle requirements.

Secure Transit Fare MediaIndustrial Asset Tag

Use Scenario: Reusable transit card supporting balance updates, trip logging, and fare capping across metro/bus networks.

IC Role / Device Role / Timing Role: High-endurance EEPROM for financial-grade transaction records - protected by stream encryption and checksum-verified writes.

Use Value: 100,000 write cycles exceed typical 5-year transit card usage; encrypted checksum (MAC) prevents tampering with stored balance or trip count.

Use Scenario: Maintenance-tagged industrial equipment requiring secure firmware version tracking, calibration logs, and service history.

IC Role / Device Role / Timing Role: Industrial-grade RFID tag storing calibrated sensor offsets and maintenance timestamps - readable only after zone-specific password verification.

Use Value: −40°C to +85°C operation ensures reliability in factory-floor environments; tamper sensors flag unauthorized physical access to the tag housing.

Equivalent & Alternatives

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

Alternative PartTechnical DifferenceApplication DifferenceSelection Advice
NXP NT3H2111W0FHKH13.56 MHz Type A/B dual-interface; 2 kbit EEPROM; NFC Forum Tag Type 4A compliant; no integrated tuning capacitor.Designed for smartphone tap-to-read use cases; lacks 64-bit mutual authentication and secure personalization mode.Select when NFC interoperability with mobile devices is primary; avoid when ELVA-licensed crypto or industrial temperature range is required.
Infineon SLI13S13.56 MHz Type B only; 4 kbit EEPROM; ISO/IEC 14443-3 compliant; no built-in tuning capacitor; supports AES-128 encryption.Targets high-volume logistics tagging; offers AES but not 64-bit mutual auth; lower endurance (50,000 cycles) and shorter data retention (5 years).Select for cost-sensitive supply chain tagging where AES suffices; avoid when anti-tearing, 100k-cycle endurance, or transport password protection is mandatory.

Compared with NT3H2111W0FHKH and SLI13S, AT88RF04C-MVB1G uniquely combines ISO/IEC 14443-3 Type B compliance, integrated 82 pF tuning, 64-bit mutual authentication, and industrial temperature rating - making it optimal for secure physical credentials requiring long-term reliability and cryptographic assurance.

Availability

AT88RF04C-MVB1G is available at Aetrix Electronics and suitable for physical access control systems, government e-ID programs, secure transit fare media, and industrial asset tagging requiring stable component supply and long-term lifecycle support.

Supply support for AT88RF04C-MVB1G 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

Microchip Technology acquired Atmel in 2016 and maintains its CryptoRF product line as part of its secure authentication portfolio for embedded and contactless applications.

The AT88RF04C family was designed specifically for secure, battery-free RFID smart cards and tokens requiring cryptographic integrity, zone-based access control, and robust operation in industrial environments.

FAQ

What is the transport password for AT88RF04C-MVB1G configuration memory access?

The transport password for AT88RF04C-MVB1G is fixed at hexadecimal value $30 1D D2. This password must be presented using the Check Password command to gain read/write access to the configuration memory, including AFI, keys, and security fuses. It is hardcoded and cannot be altered, ensuring consistent provisioning security across all units of AT88RF04C-MVB1G.

Does AT88RF04C-MVB1G support both ISO/IEC 14443 Type A and Type B protocols?

AT88RF04C-MVB1G is fully compliant with ISO/IEC 14443-2 and -3 Type B only. However, its RF interface is tolerant of Type A signals - it will not latch, lock up, or sustain damage when exposed to Type A field modulation, though it does not respond to Type A commands. This tolerance enables coexistence in multi-protocol reader environments without hardware redesign.

How is power delivered to AT88RF04C-MVB1G during operation?

AT88RF04C-MVB1G derives all operating power from the 13.56 MHz RF field generated by the reader (PCD) via electromagnetic induction. Its internal rectifier and regulator convert the AC signal from the external coil antenna (connected between AC1 and AC2) into regulated DC supply - eliminating the need for batteries, external power rails, or energy-harvesting circuitry. This defines its role as a true passive RFID IC.

What memory architecture does AT88RF04C-MVB1G implement for user data storage?

AT88RF04C-MVB1G organizes its 4 kbit user EEPROM into four independent 128-byte zones (User 0–3), each with configurable access rights. Each zone supports byte, page (16-byte), and partial-page writes, with self-timed write cycles. The 2 kbit configuration memory stores passwords, keys, AFI, and security fuses - accessible only after transport password verification and fuse programming.

What security features distinguish AT88RF04C-MVB1G from standard RFID memory ICs?

AT88RF04C-MVB1G integrates 64-bit mutual authentication (under ELVA license), stream encryption using 64-bit keys, four independent key/password sets per zone, anti-tearing protection, tamper sensors, and programmable attempt counters - features absent in basic RFID EEPROMs. These enable cryptographic session establishment, data confidentiality, and resistance to physical and logical attacks, making AT88RF04C-MVB1G suitable for high-assurance applications like national ID and access control.

AT88RF04C-MVB1G Specifications

Product attributes
Attribute value
Manufacturer:
Microchip Technology
Series:
CryptoMemory®, CryptoRF®
Packaging:
Tape & Reel (TR)
Product Status:
Obsolete
Style:
Inlay
Technology:
Passive
Frequency:
13.56MHz
Memory Type:
Read/Write
Writable Memory:
4kb (User)
Standards:
ISO 14443
Operating Temperature:
-40°C ~ 85°C
Size / Dimension:
0.712" L x 0.338" W (18.10mm x 8.60mm)

AT88RF04C-MVB1G FAQ

1.How can I place an order for AT88RF04C-MVB1G through Aetrix?

Please submit a Request for Quotation (RFQ) for AT88RF04C-MVB1G 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 AT88RF04C-MVB1G reliable?

The price and inventory of AT88RF04C-MVB1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT88RF04C-MVB1G is usually 5 days.

3.What payment methods are accepted for AT88RF04C-MVB1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT88RF04C-MVB1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AT88RF04C-MVB1G?

AT88RF04C-MVB1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AT88RF04C-MVB1G 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 AT88RF04C-MVB1G?

For technical support, including AT88RF04C-MVB1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT88RF04C-MVB1G requirements.

6.How does Aetrix verify that AT88RF04C-MVB1G is sourced from the original manufacturer or authorized distributors?

All AT88RF04C-MVB1G 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 AT88RF04C-MVB1G meets industry standards.

7.What is the process for return or replacement of AT88RF04C-MVB1G?

All AT88RF04C-MVB1G units undergo pre-shipment inspection (PSI). If there is an issue with AT88RF04C-MVB1G, 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 AT88RF04C-MVB1G part is unused and in its original packaging.

Return procedure for AT88RF04C-MVB1G:

1.Submit a request within 90 days.

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

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