Microchip Technology AT88SC6416CRF-MR1

Overview

AT88SC6416CRF-MR1 from Microchip Technology (formerly Atmel) is a contactless 13.56 MHz CryptoRF EEPROM memory module with 64 kilobits of user memory, ISO/IEC 14443-2 and -3 Type B compliance, and integrated 82 pF tuning capacitor. It operates in commercial temperature range (0°C to 70°C), supports mutual authentication via licensed 64-bit protocol, and delivers 100,000 write cycles with 10-year data retention - deployed in secure RFID smart cards and tamper-resistant credential systems.

For engineers reviewing the AT88SC6416CRF-MR1 datasheet, AT88SC6416CRF-MR1 pinout, AT88SC6416CRF-MR1 application, or AT88SC6416CRF-MR1 equivalent, this page provides verified technical context on RF interface timing, zone-based access control, cryptographic mode activation, and R-module mechanical integration for embedded secure identity solutions.

Technical Context

The AT88SC6416CRF-MR1 implements a fully compliant ISO/IEC 14443-2:2001 Type B RF interface with half-duplex 106 kbit/s data exchange, 2-byte CRC_B error detection, and Slot-MARKER anticollision protocol. Its RF interface powers the IC entirely - no battery required - and includes integrated rectifier, regulator, clock extraction, and modulator circuitry.

Security architecture comprises four key sets, eight 24-bit password sets, per-zone access rights, anti-tearing recovery, and tamper sensors. Memory is partitioned into sixteen 512-byte user zones plus a 256-byte configuration zone containing AFI, polling response, keys, and security fuses - all programmable during personalization using the transport password $70 BA 2E.

Key Specifications

Pinout & Package

AT88SC6416CRF-MR1 is supplied in an R Module package: 2-lead RF smart card module (XOA2 style), RoHS-compliant, with dimensions 5.06 mm × 8.00 mm, glob top size 4.8 mm × 5.1 mm, thickness 0.38 mm, and 9.5 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NXP ICODE SLI-S and Infineon SLE 78CLXX, the AT88SC6416CRF-MR1 delivers purpose-built, hardware-accelerated cryptographic memory with zero-software overhead, minimal external component count (single coil), and proven deployment in certified government ID programs - making it optimal for fixed-role, high-security credentialing where deterministic behavior and low BOM cost are essential.

Availability

AT88SC6416CRF-MR1 is available at Aetrix Electronics and suitable for secure government ID cards, transit fare payment systems, and corporate physical access badges requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for AT88SC6416CRF-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, emphasizing hardware-rooted trust for embedded systems.

The AT88SC6416CRF-MR1 belongs to the CryptoRF family - designed specifically for contactless secure memory applications in smart cards, credentials, and tamper-resistant tokens where ISO/IEC 14443-2/-3 Type B interoperability and cryptographic integrity are mandatory.

FAQ

What is the primary function of the AT88SC6416CRF-MR1?

The AT88SC6416CRF-MR1 is a contactless, ISO/IEC 14443-2/-3 Type B–compliant secure memory module with 64 kilobits of user EEPROM and cryptographic features including mutual authentication, zone-based access control, and anti-tearing. It functions as a tamper-resistant credential core in smart cards - not a microcontroller or general-purpose RFID tag. The AT88SC6416CRF-MR1 requires no firmware and operates solely via RF command set execution.

Does the AT88SC6416CRF-MR1 require an external tuning capacitor?

No. The AT88SC6416CRF-MR1 integrates an 82 pF tuning capacitor between AC1 and AC2 pins, eliminating the need for external capacitors in most antenna designs. This simplifies layout and reduces BOM count for R-module integration. The AT88SC6416CRF-MR1's ±10% capacitance tolerance over temperature and process ensures reliable resonance with standard 13.56 MHz coils.

How is security configured on the AT88SC6416CRF-MR1?

Security is configured during personalization using the transport password $70 BA 2E to unlock the 256-byte configuration zone. There, users program Application Family Identifiers (AFI), anticollision responses, four key sets, eight 24-bit passwords, and per-zone access rights. Three security fuses - for module, card, and issuer - must be blown sequentially to lock configuration data as OTP. The AT88SC6416CRF-MR1 enforces these settings at runtime with hardware-based verification.

What is the operating temperature range for the AT88SC6416CRF-MR1?

The AT88SC6416CRF-MR1 is rated for commercial operation from 0°C to +70°C, as specified in the official ordering information table for the MR1 variant. This differs from industrial variants like AT88SC6416CRF-WA1 (−25°C to +85°C). The AT88SC6416CRF-MR1's thermal specification aligns with standard smart card use cases in controlled indoor environments such as offices, transit gates, and healthcare facilities.

Can the AT88SC6416CRF-MR1 be used with ISO/IEC 14443-3 Type A readers?

The AT88SC6416CRF-MR1 is explicitly compliant only with ISO/IEC 14443-2 and -3 Type B. However, its RF interface is tolerant of Type A signals: it will not latch up or sustain damage if exposed, though it ignores Type A commands and does not respond. The AT88SC6416CRF-MR1 remains fully functional after Type A exposure, supporting co-location in mixed-protocol environments without hardware redesign.