Renesas R5F51406BGNE#30

Overview

R5F51406BGNE#30 from Renesas is a 48-MHz 32-bit RXv2 microcontroller with on-chip FPU, 256-KB flash, 64-KB SRAM, 8-KB data flash, and integrated CAN, CTSU, AES, and RTC. It operates from 1.8–5.5 V and supports –40 to +105°C industrial temperature range in a 48-pin HWQFN package. Used in motor control, industrial HMI, and smart sensor nodes requiring real-time processing and secure communication.

For engineers reviewing the R5F51406BGNE#30 datasheet, R5F51406BGNE#30 pinout, R5F51406BGNE#30 application, or R5F51406BGNE#30 equivalent, key selection criteria include its 48-MHz RXv2 core with IEEE-754 FPU, 18-channel 12-bit ADC with 0.67 µs conversion, dual 8-bit DACs, hardware AES-128/256 acceleration, and 1-channel ISO11898-1 CAN supporting up to 1 Mbps.

Technical Context

The R5F51406BGNE#30 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling 204 CoreMark at 48 MHz. It integrates a dedicated low-power timer (LPT) running during software standby and an event link controller (ELC) enabling interrupt-free inter-module coordination while the CPU sleeps.

Its clock system includes high-speed on-chip oscillator (±1% at 48 MHz), PLL, sub-clock (32.768 kHz), and clock accuracy measurement circuit (CAC). The MCU supports IEC60730-compliant self-diagnostic functions for ADC, IWDT, RAM, and clock monitoring-critical for functional safety in industrial equipment.

Key Specifications

Pinout & Package

PWQN0048KC-A is a 48-pin, 7 × 7 mm, 0.5 mm pitch HWQFN package with exposed thermal pad. Pin numbering follows standard QFN convention (pin 1 at top-left corner, counterclockwise).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51406BDNE#30, the R5F51406BGNE#30 adds hardware AES/RNG and extended temperature support-critical for secure industrial edge devices. Against R5F51405BGNE#30, it doubles flash and RAM while adding 8-KB data flash, enabling robust OTA update and calibration management without external EEPROM.

Availability

R5F51406BGNE#30 is available at Aetrix Electronics and suitable for industrial motor drives, smart building HMI panels, factory I/O modules, and medical sensor nodes requiring stable component supply across long production lifecycles.

Supply support for R5F51406BGNE#30 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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX140 Group targets cost-optimized industrial and consumer applications needing real-time performance, functional safety support, and integrated human-machine interface capabilities-including capacitive touch, secure communication, and precision analog.

FAQ

What is the maximum operating frequency and core type of the R5F51406BGNE#30?

The R5F51406BGNE#30 features a 32-bit RXv2 CPU core with a maximum operating frequency of 48 MHz. It achieves 204 CoreMark at this speed and includes an IEEE-754-compliant single-precision floating-point unit (FPU), on-chip divider (2-cycle), and enhanced DSP instructions. This makes the R5F51406BGNE#30 suitable for real-time control tasks such as motor algorithms and sensor fusion where deterministic computation is essential.

Does the R5F51406BGNE#30 include hardware encryption and what standards does it support?

Yes, the R5F51406BGNE#30 includes a hardware AES accelerator (AESA) supporting 128- and 256-bit keys in ECB, CBC, and CTR modes, compliant with FIPS PUB 197. It also integrates a true random number generator (RNGA) producing 32-bit values with interrupt capability. These features are enabled in the R5F51406BGNE#30 variant (indicated by "B" in the part number) and are absent in "A" variants like R5F51406ADNE#30.

What package type and pin count does the R5F51406BGNE#30 use?

The R5F51406BGNE#30 uses the PWQN0048KC-A package: a 48-pin HWQFN with 7 × 7 mm body size, 0.5 mm pitch, and exposed thermal pad. This matches the pinout of other 48-pin RX140 variants (e.g., R5F51406BDNE#30), ensuring layout compatibility across temperature and feature grades. The "NE" suffix explicitly denotes this HWQFN configuration per Renesas' part numbering scheme.

How many analog-to-digital converter (ADC) channels does the R5F51406BGNE#30 support and what is its performance?

The R5F51406BGNE#30 integrates an S12ADE 12-bit A/D converter with 17 external input channels and one internal channel (temperature sensor), for a total of 18 channels. At 48 MHz ADCLK, it achieves a minimum conversion time of 0.67 µs per channel. It supports scan modes, per-channel sampling time control, conversion result comparison, and double-trigger mode-making the R5F51406BGNE#30 ideal for high-speed current sensing in motor control applications.

Is CAN functionality available on the R5F51406BGNE#30 and what standard does it comply with?

Yes, the R5F51406BGNE#30 includes a single-channel RSCAN CAN module compliant with ISO11898-1 for standard and extended frames, supporting bit rates up to 1 Mbps. It provides 16 mailboxes and integrates with the ELC for hardware-triggered message transmission. Note that the CAN physical layer requires an external transceiver; the R5F51406BGNE#30 handles only the protocol and message buffering layers.