Microchip Technology AT88SC0808CRF-MR1

Overview

AT88SC0808CRF-MR1 from Microchip Technology (formerly Atmel) is a contactless 13.56 MHz CryptoRF EEPROM memory module with 8 kilobits of user memory, ISO/IEC 14443-2 and -3 Type B compliance, and integrated 82 pF tuning capacitance. It functions as a secure RF smart card IC for authentication-critical applications requiring tamper resistance, encrypted data exchange, and multi-zone access control - deployed in physical access cards and secure credential tokens.

For engineers reviewing the AT88SC0808CRF-MR1 datasheet, AT88SC0808CRF-MR1 pinout, AT88SC0808CRF-MR1 application, or AT88SC0808CRF-MR1 equivalent, key selection criteria include its 100,000-write-cycle endurance, −25°C to +70°C commercial temperature range, R-module 2-lead wafer-level packaging, and support for four cryptographic key sets with zone-level access rights.

Technical Context

The AT88SC0808CRF-MR1 implements a fully compliant ISO/IEC 14443-2:2001 Type B RF interface with half-duplex 106 kbit/s data transfer, 2-byte CRC_B error detection, and Slot-MARKER anticollision protocol. Its RF interface powers the IC entirely - no external supply required - and integrates an 82 pF tuning capacitor between AC1 and AC2 pins.

Security operations are structured in three communication modes: Standard (clear-text), Authentication (encrypted passwords + MAC), and Encryption (end-to-end encrypted data). Memory access is enforced per-zone via eight 24-bit password sets, four 64-bit key sets, and anti-tearing recovery logic that preserves data integrity during power loss.

Key Specifications

Pinout & Package

R Module (XOA2-style) 2-lead wafer-level package with gold-plated contacts; designed for direct bonding to antenna coil traces. No internal voltage regulator or digital I/O pins - power and data delivered exclusively via RF coupling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT88SC0808CRF-MR1, the NT3H2201W0FHKH offers lower-cost NFC data exchange but lacks cryptographic authentication and zone-level access control, while the SLE78CLFX2000P delivers higher assurance and OS flexibility at significantly greater complexity and bill-of-material cost.

Availability

AT88SC0808CRF-MR1 is available at Aetrix Electronics and suitable for physical access control systems, government ID programs, healthcare credentialing, and high-security asset tagging requiring stable component supply and long-term lifecycle continuity.

Supply support for AT88SC0808CRF-MR1 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 as part of its secure authentication portfolio for embedded identity and trusted data storage.

The AT88SC0808CRF-MR1 belongs to the CryptoRF family - purpose-built for contactless secure memory applications where ISO/IEC 14443-B interoperability, hardware-accelerated cryptography, and tamper-resilient EEPROM are mandatory.

FAQ

What is the operating temperature range for AT88SC0808CRF-MR1?

The AT88SC0808CRF-MR1 is rated for commercial operation from −25°C to +70°C, as specified in the ordering information table for the "R Module" package variant. This range supports indoor access control, healthcare, and office credentialing environments but excludes extended industrial or automotive under-hood applications.

Does AT88SC0808CRF-MR1 require an external tuning capacitor?

No, the AT88SC0808CRF-MR1 integrates an 82 pF nominal tuning capacitor between AC1 and AC2 terminals. Only a single external planar coil is required to form the resonant LC tank - eliminating component count and layout sensitivity associated with discrete capacitor placement.

How many cryptographic key sets does AT88SC0808CRF-MR1 support?

The AT88SC0808CRF-MR1 supports four independent 64-bit key sets for mutual authentication and encryption, each assignable to specific user zones. Keys are stored in the 2-kbit configuration EEPROM and protected by transport password access control before personalization.

What is the memory organization of AT88SC0808CRF-MR1?

The AT88SC0808CRF-MR1 contains 8 kilobits of user EEPROM divided into eight 128-byte zones (1-kbit each), plus 2 kilobits of configuration EEPROM. The configuration zone stores passwords, keys, AFI, polling responses, and security fuses - all accessible only after transport password verification.

Is AT88SC0808CRF-MR1 compatible with ISO/IEC 14443-3 Type A readers?

No - the AT88SC0808CRF-MR1 is strictly ISO/IEC 14443-2 and -3 Type B compliant. However, it is tolerant of Type A signal exposure: it will not latch up or sustain damage, though it remains unresponsive to Type A commands and modulation schemes.