Renesas R5F51406BGFM#30

Overview

R5F51406BGFM#30 from Renesas is a 32-bit RXv2 core MCU operating at up to 48 MHz, featuring 256 KB flash, 64 KB SRAM, 8 KB data flash, on-chip FPU, and integrated CAN, 12-bit A/D (18 channels), dual 8-bit D/A, capacitive touch sensing (36 keys), and AES/RNG encryption. It targets industrial control and consumer HMI applications requiring IEC60730 compliance, low-power operation (0.25 µA standby), and real-time responsiveness.

For engineers reviewing the R5F51406BGFM#30 datasheet, R5F51406BGFM#30 pinout, R5F51406BGFM#30 application, or R5F51406BGFM#30 equivalent, key selection considerations include its 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch) package, –40 to +105°C temperature grade, 48 MHz max frequency with 204 CoreMark performance, and hardware-accelerated cryptography support for secure firmware updates and device authentication.

Technical Context

The R5F51406BGFM#30 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and ultra-compact code density. Its CPU supports IEEE-754 single-precision FPU, 32-bit multiply-accumulate, and fast interrupt handling with 256 vectors and 16 priority levels.

Power management includes four low-power modes (software standby, snooze, deep sleep, sleep), a dedicated 15 kHz IWDT oscillator, and LPT running during software standby. Clock generation integrates HOCO (48 MHz ±1%), sub-clock (32.768 kHz), PLL, and CAC for frequency accuracy monitoring.

Key Specifications

Pinout & Package

Package: PLQP0064KB-C - 64-pin Low-Profile Quad Flat Package, 10 × 10 mm body, 0.5 mm pitch, exposed thermal pad, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit industrial MCU applications.

Compared with R5F51406ADFM#30, the R5F51406BGFM#30 adds hardware AES/RNG and extended temperature support - critical for automotive and industrial deployments. Against R5F51405BGFM#30, it doubles flash/SRAM and adds 8 KB wear-levelled data flash, enabling field-upgradable firmware and persistent calibration storage.

Availability

R5F51406BGFM#30 is available at Aetrix Electronics and suitable for industrial motor drives, smart appliance HMIs, automotive body controllers, and energy monitoring gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51406BGFM#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 industrial, automotive, and enterprise markets.

The RX140 Group is designed for cost-optimized, high-integration 32-bit control applications demanding real-time performance, functional safety support, and low-power operation - especially where capacitive touch, CAN, and cryptographic capabilities converge.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F51406BGFM#30?

The R5F51406BGFM#30 operates at a maximum frequency of 48 MHz and achieves 204 CoreMark points at that speed. This performance level is enabled by the RXv2 CPU core's 5-stage pipeline, variable-length instruction set, and zero-wait-state access to flash memory up to 32 MHz. The CoreMark benchmark confirms deterministic execution capability for real-time control tasks in the R5F51406BGFM#30.

Does the R5F51406BGFM#30 support hardware-accelerated cryptography?

Yes, the R5F51406BGFM#30 includes the AESA (Advanced Encryption Standard Accelerator) supporting AES-128 and AES-256 in ECB, CBC, and CTR modes, plus RNGA (True Random Number Generator). These modules are present because the part number suffix 'B' denotes encryption capability, and the datasheet confirms AESA completes 128-bit encryption in 176 cycles. This hardware acceleration is integral to the R5F51406BGFM#30's IEC60730 Class B compliance and secure boot implementation.

What package type and pin count does the R5F51406BGFM#30 use?

The R5F51406BGFM#30 uses the PLQP0064KB-C package: a 64-pin Low-Profile Quad Flat Package measuring 10 × 10 mm with 0.5 mm pitch and an exposed thermal pad. This is confirmed by Figure 1.1 (part number decoding) and Table 1.3 in the datasheet, where 'FM' maps to LFQFP/64/0.50. The package supports reflow soldering and provides thermal performance suitable for continuous 48 MHz operation in +105°C environments.

How many A/D converter channels does the R5F51406BGFM#30 have, and what is its conversion speed?

The R5F51406BGFM#30 integrates an S12ADE 12-bit A/D converter with 18 total channels: 17 external input pins plus one internal temperature sensor channel. Its minimum conversion time is 0.67 µs when ADCLK runs at 48 MHz, as specified in Table 1.1 and section 35 of the hardware manual. This speed enables high-fidelity current sensing in motor control applications and is a fixed characteristic of the R5F51406BGFM#30's analog subsystem.

Is the R5F51406BGFM#30 qualified for automotive or industrial temperature ranges?

Yes, the R5F51406BGFM#30 is qualified for industrial and extended-temperature operation from –40 to +105°C, denoted by the 'G' in its part number per Figure 1.1. This rating is explicitly stated in Table 1.3 and applies across all electrical specifications including 48 MHz operation, data flash endurance, and A/D linearity. It meets requirements for under-hood automotive body electronics and factory-floor industrial controllers where ambient heat exceeds +85°C.