Renesas R5F51406BDFK#30

Overview

R5F51406BDFK#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, AES-128/256 hardware accelerator, and CAN 2.0B compliance. It supports capacitive touch sensing (up to 32 keys), 12-bit A/D with 15 channels, dual 8-bit D/A, RTC, and operates from 1.8–5.5 V across –40 to +85°C.

For engineers reviewing the R5F51406BDFK#30 datasheet, R5F51406BDFK#30 pinout, R5F51406BDFK#30 application, or R5F51406BDFK#30 equivalent, key selection criteria include encryption module inclusion (B-suffix), LQFP-64 package (14 × 14 mm, 0.8 mm pitch), 256 KB flash capacity, CAN interface availability, and IEC60730 self-test support for functional safety-critical designs.

Technical Context

The R5F51406BDFK#30 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling 204 CoreMark at 48 MHz. Its on-chip FPU complies with IEEE-754 single-precision, and the 32-bit divider completes in two clock cycles.

It integrates an event link controller (ELC) enabling interrupt-free inter-module triggering, a data transfer controller (DTC) supporting five transfer modes, and a multi-function timer unit (MTU2a) with six 16-bit channels for PWM, input capture, and phase counting-all synchronized to PCLKB up to 32 MHz.

Key Specifications

Pinout & Package

Package: PLQP0064GA-A - 64-pin LQFP, 14 × 14 mm body, 0.8 mm pitch, exposed pad not specified, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51406BDFK#30, R5F51405BDFK#30 reduces memory and peripheral count for simpler applications, while R5F51406AGFK#30 maintains full feature parity with enhanced thermal rating-making both viable alternatives depending on memory budget and ambient temperature requirements.

Availability

R5F51406BDFK#30 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, smart thermostat HMIs, and motor drive interface modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F51406BDFK#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 IoT markets.

The RX140 Group targets cost-optimized, safety-aware embedded applications-delivering high-performance 32-bit MCUs with integrated security, low-power operation, and rich analog/motor control peripherals for appliance and industrial control.

FAQ

What is the maximum operating frequency and core type of the R5F51406BDFK#30?

The R5F51406BDFK#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 a 5-stage pipeline, variable-length instruction set, and on-chip FPU compliant with IEEE-754 single-precision. The R5F51406BDFK#30 uses a CISC Harvard architecture optimized for deterministic real-time execution in resource-constrained environments.

Does the R5F51406BDFK#30 include hardware encryption capabilities?

Yes, the R5F51406BDFK#30 includes an Advanced Encryption Standard hardware accelerator (AESA) supporting AES-128 and AES-256 key lengths in ECB, CBC, and CTR modes. It performs 128-bit encryption in 176 cycles and 256-bit in 240 cycles, and is FIPS PUB 197 compliant. The R5F51406BDFK#30 also integrates a True Random Number Generator (RNGA) for cryptographic key generation.

What package type and pin count does the R5F51406BDFK#30 use?

The R5F51406BDFK#30 uses the PLQP0064GA-A package: a 64-pin LQFP with 14 × 14 mm body size and 0.8 mm pin pitch. This package is distinct from the 0.5 mm pitch LFQFP variants and supports all peripherals enabled in the 256 KB flash configuration-including CAN, full SCI complement, and CTSU2SL touch sensing-without pin multiplexing conflicts.

How many A/D converter channels does the R5F51406BDFK#30 support, and what is its conversion speed?

The R5F51406BDFK#30 integrates a 12-bit S12ADE A/D converter with 15 external input channels and one internal channel (temperature sensor). At maximum ADCLK of 48 MHz, it achieves a minimum conversion time of 0.67 µs per channel. Sampling time is configurable per channel, and it supports group scan, double-trigger mode, and analog input disconnection detection-features confirmed for the R5F51406BDFK#30 in Table 1.2 of the datasheet.

Is the R5F51406BDFK#30 CAN-compliant, and what version of the standard does it implement?

Yes, the R5F51406BDFK#30 includes a CAN module (RSCAN) compliant with ISO 11898-1:2015 for standard and extended frames at up to 1 Mbps. It provides 16 mailboxes, message filtering, and loopback self-test mode. This capability is present in all RX140 Group parts with 128 KB+ flash-including the R5F51406BDFK#30-as verified in Table 1.2 and Section 1.1 of the datasheet.