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Microchip Technology AT88RF04C-MR1G
- Part No.:
- AT88RF04C-MR1G
- Manufacturer:
- Microchip Technology
- Category:
- RFID Transponders, Tags
- Package:
- Datasheet:
-
AT88RF04C-MR1G.pdf
- Description:
- RFID TAG R/W 13.56MHZ INLAY
- Quantity:
- Payment:
- Shipping:
Inventory:1,253
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Product details
Overview
AT88RF04C-MR1G 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 protocol. 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-MR1G datasheet, AT88RF04C-MR1G pinout, AT88RF04C-MR1G application, or AT88RF04C-MR1G equivalent, key selection criteria include ISO/IEC 14443-3 Type B anticollision support, zone-level password/key access control, self-timed EEPROM writes, tamper sensing, and transport password ($30 1D D2) for configuration memory access.
Technical Context
The AT88RF04C-MR1G implements a fully autonomous RF interface with on-chip 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 AC1/AC2 coil terminals with nominal 82 pF integrated capacitance and tolerance to ISO/IEC 14443-3 Type A modulation without latch-up.
Security processing is hardware-accelerated: the device supports four independent 64-bit crypto key sets, four 24-bit password sets per zone, anti-tearing recovery via dual-write buffering, and optional cryptographic checksum (MAC) validation. All security operations - authentication, encryption activation, and password verification - are stateful and persist until power loss, DESELECT, or IDLE command.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Interface | Fully compliant ISO/IEC 14443-2:2001 and -3:2001 Type B; half-duplex 106 kbps data rate with CRC_B error detection. |
| User Memory | 4 kbit EEPROM, organized as four independent 128-byte zones; supports byte/page/partial-page writes with self-timed cycle. |
| Configuration Memory | 2 kbit EEPROM storing AFI, anticollision response, keys, passwords, and zone access registers; secured by three OTP fuses. |
| Security Protocol | 64-bit mutual authentication (ELVA licensed), stream encryption with 64-bit key, encrypted checksum (MAC), and anti-tearing function. |
| Operating Range | −40°C to +85°C industrial temperature grade; 100,000 write cycles per byte; 10-year data retention at 55°C. |
| Tuning Capacitance | 82 pF ±10 pF integrated between AC1 and AC2 pins - eliminates need for external capacitor in antenna matching network. |
| Transport Password | $30 1D D2 required to unlock configuration memory access; enables secure personalization of keys, passwords, and AFI. |
Pinout & Package
AT88RF04C-MR1G is housed in an R Module (XOA2 style) package: 5.06 mm × 8.00 mm footprint, 0.38 mm thickness, square glob top (4.8 mm × 5.1 mm), Ag finish, lead-free/halogen-free, on 35 mm tape. It features two RF coil terminals only - no digital I/O, VDD, or VSS pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | RF Coil Terminal 1 | Connects to one end of external planar antenna coil; forms resonant LC tank with internal 82 pF capacitor. |
| AC2 | RF Coil Terminal 2 | Connects to other end of external antenna coil; completes resonant circuit for 13.56 MHz field coupling and power harvesting. |
Key Features
| Feature | Design Value |
|---|---|
| ISO/IEC 14443-3 Type B Anticollision | Enables reliable multi-card operation in dense RF fields using Slot-MARKER protocol and user-programmable AFI. |
| Zone-Level Access Control | Four independent user zones each support unique password sets, crypto keys, and configurable read/write permissions. |
| Secure Personalization Mode | Encrypts secrets during initial programming - prevents exposure of keys/passwords over RF link during provisioning. |
| Tamper Sensing & Anti-Tearing | Detects physical intrusion attempts and ensures EEPROM integrity during power interruption via dual-write buffer recovery. |
| Type A Signal Tolerance | Remains functional and non-latching when exposed to ISO/IEC 14443-3 Type A field modulation - simplifies multi-protocol reader design. |
Applications
| Secure Physical Access Control | Government ID Cards |
|---|---|
|
Use Scenario: Contactless door readers authenticate employee badges before granting entry to restricted facilities. IC Role / Device Role / Timing Role: Secure PICC (Proximity Integrated Circuit Card) providing cryptographically verified identity and zone-locked credential storage. Use Value: Prevents cloning via 64-bit mutual authentication and encrypted checksum; AFI enables co-location of facility-specific and national ID cards in same environment. |
Use Scenario: National e-passports and citizen ID cards store biometric templates and personal data with tamper resistance. IC Role / Device Role / Timing Role: ISO/IEC 14443-3 Type B-compliant secure memory IC acting as trusted data vault within laminated smart card substrate. Use Value: OTP fuses permanently lock configuration after personalization; anti-tearing ensures biometric data integrity during intermittent field exposure. |
| Healthcare Patient Tokens | Secure Asset Tagging |
|
Use Scenario: Hospital wristbands store encrypted patient records and treatment authorization flags readable only by authenticated clinical devices. IC Role / Device Role / Timing Role: Contactless secure memory enabling role-based access to sensitive health data zones via reader-initiated authentication. Use Value: Four key sets allow distinct access tiers (nurse, pharmacist, lab tech); password attempt counters deter brute-force attacks on bedside scanners. |
Use Scenario: High-value equipment tags in industrial settings log maintenance history and verify operator credentials before service activation. IC Role / Device Role / Timing Role: Tamper-evident RFID token with encrypted write capability and sensor-triggered fuse blow upon unauthorized opening. Use Value: Tamper sensors disable configuration memory if enclosure is breached; encrypted stream mode protects maintenance logs from replay or modification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar contactless secure memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NXP NT3H2211W0FHKH | 1 kbit user memory; NFC Forum Type 2 Tag compliant (not ISO/IEC 14443-3 Type B); no mutual authentication or stream encryption. | Limited to low-security NFC use cases (e.g., marketing tags, basic device pairing); lacks AFI, anti-tearing, and tamper sensing. | Select when cost-sensitive NFC tap-to-connect is sufficient and cryptographic security is not required. |
| Infineon SLE78CLY20PM-96S | 8 kbit user memory; ISO/IEC 14443-4 compliant (not Type B); supports DES/Triple-DES but no built-in 64-bit mutual auth or MAC checksum. | Targeted at JavaCard-based smart cards with host MCU; requires external microcontroller for full crypto stack implementation. | Select when migrating to ISO/IEC 14443-4 infrastructure and needing larger memory with software-managed crypto. |
Compared with NT3H2211W0FHKH and SLE78CLY20PM-96S, the AT88RF04C-MR1G uniquely delivers ISO/IEC 14443-3 Type B compliance with hardware-accelerated 64-bit mutual authentication, integrated tuning capacitance, and tamper-sensing - making it optimal for standalone, high-assurance RFID tokens without host processor dependency.
Availability
AT88RF04C-MR1G is available at Aetrix Electronics and suitable for secure physical access control, government ID issuance, healthcare patient identification, and industrial asset tagging requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AT88RF04C-MR1G 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 the CryptoRF product line, delivering secure semiconductor solutions for authentication, data integrity, and trusted identity management.
The AT88RF04C-MR1G belongs to the CryptoRF family - designed specifically for contactless, battery-free smart cards and tokens requiring hardware-enforced cryptographic security, ISO/IEC 14443-3 Type B interoperability, and robust tamper resistance.
FAQ
What is the operating temperature range for AT88RF04C-MR1G?
The AT88RF04C-MR1G is rated for industrial operation from −40°C to +85°C. This specification is confirmed in the official Atmel-8672CS datasheet summary, Section 15 (Ordering Information), where AT88RF04C-MR1G is explicitly listed under "Industrial (−40°C to 85°C)" temperature grade - matching its WA1 wafer variant and distinguishing it from commercial-grade MR1G alternatives.
Does AT88RF04C-MR1G require an external tuning capacitor?
No, the AT88RF04C-MR1G integrates an 82 pF ±10 pF capacitor between AC1 and AC2 terminals, eliminating the need for an external tuning capacitor. As stated in Section 13 of the datasheet summary, this internal capacitance enables direct connection to a single external coil antenna - simplifying antenna matching and reducing BOM count for RFID tag designs.
How is configuration memory accessed on AT88RF04C-MR1G?
Configuration memory on the AT88RF04C-MR1G is accessed using the transport password $30 1D D2 via the Check Password command. This secure code unlocks read/write access to the 2 kbit configuration zone containing AFI, keys, passwords, and security fuses - as documented in Section 12.7 of the datasheet summary.
What security features differentiate AT88RF04C-MR1G from standard RFID tags?
The AT88RF04C-MR1G includes hardware-accelerated 64-bit mutual authentication (under ELVA license), four independent crypto key sets, encrypted checksum (MAC), anti-tearing EEPROM recovery, and physical tamper sensors - features absent in standard ISO/IEC 14443-3 Type B tags like MIFARE Classic. These are detailed in Sections 9–12 of the datasheet summary.
Is AT88RF04C-MR1G pin-compatible with other AT88RF04C variants?
No - AT88RF04C-MR1G uses a 2-terminal R Module (XOA2) package with AC1/AC2 coil pins only, while variants like MX1G and MVA1 use different epoxy-glass RFID tag form factors with distinct mechanical footprints and antenna integration. Pin compatibility does not apply, as all variants share the same die but differ exclusively in packaging and antenna interface.
AT88RF04C-MR1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- CryptoMemory®, CryptoRF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 0.511" L x 0.495" W (13.00mm x 12.58mm)
AT88RF04C-MR1G FAQ
1.How can I place an order for AT88RF04C-MR1G through Aetrix?
Please submit a Request for Quotation (RFQ) for AT88RF04C-MR1G 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-MR1G reliable?
The price and inventory of AT88RF04C-MR1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT88RF04C-MR1G is usually 5 days.
3.What payment methods are accepted for AT88RF04C-MR1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT88RF04C-MR1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT88RF04C-MR1G?
AT88RF04C-MR1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT88RF04C-MR1G 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-MR1G?
For technical support, including AT88RF04C-MR1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT88RF04C-MR1G requirements.
6.How does Aetrix verify that AT88RF04C-MR1G is sourced from the original manufacturer or authorized distributors?
All AT88RF04C-MR1G 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-MR1G meets industry standards.
7.What is the process for return or replacement of AT88RF04C-MR1G?
All AT88RF04C-MR1G units undergo pre-shipment inspection (PSI). If there is an issue with AT88RF04C-MR1G, 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-MR1G part is unused and in its original packaging.
Return procedure for AT88RF04C-MR1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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