Analog Devices Inc. SMC6290SC3

Overview

SMC6290SC3 from Renesas is a 100 MHz 32-bit RX63N Group microcontroller with integrated Ethernet MAC, single-precision IEEE-754 FPU, 2 MB on-chip flash, 256 KB SRAM, and 32 KB data flash. It features 134 general-purpose I/O pins (5-V tolerant), USB 2.0 host/function/OTG, three CAN channels, and hardware AES encryption. Used in industrial gateways requiring deterministic real-time control and network connectivity.

For engineers reviewing the SMC6290SC3 datasheet, SMC6290SC3 pinout, SMC6290SC3 application, or SMC6290SC3 equivalent, this page delivers verified specifications, package mapping to PLQP0176KB-A (176-pin LQFP), functional differentiation from RX631, Ethernet PHY interface requirements, and validated alternative MCUs for migration paths.

Technical Context

The SMC6290SC3 implements the RXv1 CPU core with 5-stage CISC Harvard pipeline, supporting 165 DMIPS at 100 MHz and variable-length instructions for ultra-compact code density. Its memory subsystem includes zero-wait-state 100-MHz flash and SRAM, plus background-programmable 32 KB data flash rated for 100,000 erase/write cycles.

It integrates dedicated peripherals including an Ethernet controller compliant with IEEE 802.3/802.3u (MII/RMII), DMA controller for Ethernet (EDMAC) with 2 KB TX/RX FIFOs, and a DEU module supporting AES-128/192/256 in ECB/CBC modes - all operating under a unified 2.7–3.6 V supply with four low-power modes.

Key Specifications

Pinout & Package

SMC6290SC3 is housed in a 176-pin LQFP package (PLQP0176KB-A, 24 × 24 mm, 0.5 mm pitch) with 134 general-purpose I/O pins - 18 of which are 5-V tolerant, all supporting pull-up resistors and open-drain outputs. The package includes dedicated pins for Ethernet MII/RMII, USB D+/D−, CANH/CANL, and external bus interface (CS0–CS7, SDCS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMC6290SC3, R5F563NFHDFC offers identical functionality and sourcing continuity, while R5F563NKHDFC trades 64 KB SRAM for lower unit cost - making it suitable for memory-constrained deterministic control tasks where Ethernet throughput remains unchanged.

Availability

SMC6290SC3 is available at Aetrix Electronics and suitable for industrial gateways, programmable logic controllers, secure edge nodes, and human-machine interfaces requiring stable component supply across extended product lifecycles.

Supply support for SMC6290SC3 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

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.

The RX63N Group - including SMC6290SC3 - was designed for high-performance industrial networking applications requiring integrated Ethernet, real-time determinism, and functional safety support (IEC 60730).

FAQ

What is the exact package type and pin count for SMC6290SC3?

SMC6290SC3 uses the PLQP0176KB-A package: a 176-pin LQFP measuring 24 × 24 mm with 0.5 mm pitch. It provides 134 general-purpose I/O pins, 18 of which are 5-V tolerant, and dedicated signal groups for Ethernet MII, USB, CAN, and external bus expansion. This package is fully compatible with standard LQFP reflow profiles and automated assembly processes.

Does SMC6290SC3 include an integrated Ethernet PHY or only a MAC?

SMC6290SC3 integrates only an Ethernet MAC compliant with IEEE 802.3/802.3u - not a PHY. It requires an external PHY chip connected via MII or RMII interface. The SMC6290SC3 provides all necessary timing, control, and data signals (ETXD0–3, ERXD0–3, ETXEN, ERXDV, etc.) and supports both full- and half-duplex 10/100 Mbps operation with flow control per IEEE 802.3x.

What are the key differences between the RX63N and RX631 Groups relevant to SMC6290SC3?

SMC6290SC3 belongs to the RX63N Group, which includes an integrated Ethernet MAC and EDMAC - features absent in the RX631 Group. Additionally, RX63N supports RTC with battery backup, sub-clock oscillator, and I/O port switching function, whereas RX631 omits these. All SMC6290SC3 variants retain full USB 2.0 host/function/OTG, CAN, and AES encryption capabilities shared across both families.

Is SMC6290SC3 qualified for industrial temperature range operation?

Yes, SMC6290SC3 is rated for -40°C to +85°C operation (D version), meeting industrial temperature requirements. It incorporates design features such as low-voltage detection (LVD), power-on reset (POR), and independent watchdog timer (IWDT) to ensure reliable startup and runtime behavior across this full range. The device also supports RTC operation from a dedicated VBATT supply down to 2.0 V.

How does the Data Encryption Unit (DEU) in SMC6290SC3 support secure firmware updates?

The DEU in SMC6290SC3 accelerates AES-128/192/256 encryption and decryption in ECB and CBC modes, enabling fast verification of signed firmware images during boot. Combined with the unique 16-byte chip ID and MPU-enforced memory isolation, SMC6290SC3 supports secure boot chains that validate authenticity and integrity before executing updated application code - critical for remote OTA deployments in unattended industrial sites.