NXP Semiconductors SLRC61002HN,518

Overview

SLRC61002HN,518 from NXP Semiconductors is a low-cost, high-performance RFID frontend IC supporting ISO/IEC 15693, ICODE EPC UID, and ISO/IEC 18000-3 Mode 3/EPC Class-1 HF protocols. It operates as a contactless reader/writer with SPI, I²C, and UART host interfaces, integrated 512-byte FIFO, and 3 V–5.5 V supply - deployed in industrial access control systems requiring reliable proximity identification.

For engineers reviewing the SLRC61002HN,518 datasheet, SLRC61002HN,518 pinout, SLRC61002HN,518 application, or SLRC61002HN,518 equivalent, key selection considerations include its HVQFN32 package, 13.56 MHz RF frontend architecture, low-power card detection capability, separate SAM interface, and support for multiple modulation schemes (ASK, Manchester, RTZ) across three protocol families.

Technical Context

The SLRC61002HN,518 implements a dual-path analog front-end with dedicated RXP/RXN differential receiver inputs and TX1/TX2 modulated 13.56 MHz carrier outputs, enabling simultaneous signal reception and transmission. Its digital core integrates a 512-byte FIFO buffer, five programmable timers (including LFO-driven Timer4 for wake-up), and register-controlled interrupt logic with IRQ pin assertion.

Host communication is dynamically selected at power-up via IFSEL0/IFSEL1 configuration pins, supporting SPI (up to 10 Mbit/s), I²C (Fast mode up to 400 kBd), I²CL, and UART (RS232-compatible, up to 1228.8 kBd). A dedicated I²C bus connects to an external Secure Access Module (SAM) for cryptographic key storage and acceleration.

Key Specifications

Pinout & Package

HVQFN32 (SOT617-1) package with 32 terminals + 1 central ground pad (VSS, pin 33), wettable flanks, MSL2 rating, and 5 × 5 × 0.85 mm body dimensions.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar RFID frontend applications.

Compared with SLRC61002HN,518, SLRC61003HNE offers broader voltage tolerance and refined low-power detection, while PN5180A0HN/C1 shifts focus to NFC standards at the expense of ISO/IEC 18000-3 and secure module integration - making SLRC61002HN,518 the optimal choice for industrial ICODE/EPC infrastructure upgrades.

Availability

SLRC61002HN,518 is available at Aetrix Electronics and suitable for industrial asset tracking, secure physical access control, and logistics hub inventory management requiring stable component supply and long-term lifecycle assurance.

Supply support for SLRC61002HN,518 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

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in RFID, NFC, and secure element technologies.

The SLRC610 product line delivers high-performance, multi-protocol RFID frontends designed specifically for industrial-grade reader systems requiring interoperability with ICODE, EPC, and ISO/IEC 18000-3 HF tag ecosystems.

FAQ

What protocols does the SLRC61002HN,518 support?

The SLRC61002HN,518 supports ISO/IEC 15693 (vicinity), ICODE EPC UID/EPC OTP, and ISO/IEC 18000-3 Mode 3/EPC Class-1 HF protocols. It does not support ISO/IEC 14443 or NFC Forum standards. Each protocol uses distinct modulation (ASK, Manchester, RTZ) and encoding schemes validated in the official NXP datasheet Rev. 5.1. The SLRC61002HN,518 implements dedicated hardware blocks for all three, enabling concurrent firmware support without performance penalty.

What is the function of the PDOWN pin on the SLRC61002HN,518?

The PDOWN pin on the SLRC61002HN,518 is an active-high power-down control input. When pulled HIGH, it forces the SLRC61002HN,518 into hard power-down mode with typical current consumption of 8 nA. Upon deassertion (LOW), the device performs a cold reset and reinitializes all internal registers and interfaces. This pin enables deterministic low-power state management in battery-operated readers - a critical feature for SLRC61002HN,518-based access control terminals.

Does the SLRC61002HN,518 include an integrated crystal oscillator?

The SLRC61002HN,518 does not include a fully integrated crystal oscillator but features an on-chip PLL and inverting amplifier circuit that interfaces directly with an external 27.12 MHz fundamental-mode quartz crystal via XTAL1 and XTAL2 pins. This architecture eliminates the need for an external clock generator while maintaining precise 13.56 MHz RF carrier synthesis - a key design advantage confirmed in Section 7.1 and Figure 3 of the SLRC61002HN,518 datasheet.

How many host interface options does the SLRC61002HN,518 provide?

The SLRC61002HN,518 provides four host interface options: SPI (up to 10 Mbit/s), standard I²C (up to 400 kBd), I²C-L (low-voltage variant), and UART (RS232-compatible, up to 1228.8 kBd). Interface selection is determined at power-up by voltage states on IFSEL0 and IFSEL1 pins, with IF0–IF3 pins dynamically reassigned as MOSI/MISO/SCK/NSS or SDA/SCL or RX/TX depending on mode - a hardware-configured flexibility unique to the SLRC61002HN,518 family.

What is the purpose of the dedicated SAM interface on the SLRC61002HN,518?

The dedicated SAM interface on the SLRC61002HN,518 is a separate I²C bus (SCL/SDA pins distinct from the primary host I²C) designed exclusively for connecting a Secure Access Module. This isolation prevents crypto operations from interfering with main host communication and enables certified key storage, AES/DES acceleration, and secure boot verification - essential for SLRC61002HN,518 deployments in high-assurance access control and payment-adjacent applications.