Renesas R5F51406BDFM#30

Overview

R5F51406BDFM#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 integrates 12-bit A/D (18 channels), dual 8-bit D/A, capacitive touch sensing (up to 36 keys), RTC, and operates from 1.8–5.5 V in industrial temperature range (–40 to +85°C).

For engineers reviewing the R5F51406BDFM#30 datasheet, R5F51406BDFM#30 pinout, R5F51406BDFM#30 application, or R5F51406BDFM#30 equivalent, key selection criteria include its 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch) package, encryption-enabled variant, CAN + multiple SCI/RIIC/RSPI interfaces, and IEC60730-ready safety features for industrial control and HMI designs.

Technical Context

The R5F51406BDFM#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 executes in two clock cycles.

It supports four low-power modes including software standby (0.25 µA typ.) with 6.2 µs wake-up from HOCO 32 MHz, and integrates ELC for event-triggered peripheral operation without CPU intervention-critical for deterministic real-time response in motor control and sensor fusion applications.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51406ADFM#30, the R5F51406BDFM#30 adds hardware AES/RNG for secure boot and communications, while R5F51406BGFN#30 expands I/O and adds RTC-making the R5F51406BDFM#30 optimal for cost-constrained, security-aware 64-pin industrial control designs.

Availability

R5F51406BDFM#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control gate drivers, and home appliance control units requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F51406BDFM#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-sensitive, safety-aware industrial and consumer applications-delivering high-performance 32-bit MCUs with integrated security, low-power operation, and rich analog/motor control peripherals.

FAQ

What is the maximum operating frequency and core architecture of the R5F51406BDFM#30?

The R5F51406BDFM#30 features a 32-bit RXv2 CPU core with a maximum operating frequency of 48 MHz. Its Harvard architecture includes a 5-stage pipeline and variable-length instruction set, achieving 204 CoreMark performance. The core supports IEEE-754-compliant single-precision FPU, 32-bit multiply-accumulate, and ultra-compact code density-making it suitable for real-time industrial control where deterministic timing and floating-point math are essential. This specification is confirmed in the R01DS0379EJ0120 datasheet Rev.1.20.

Does the R5F51406BDFM#30 include hardware encryption capabilities?

Yes, the R5F51406BDFM#30 includes an Advanced Encryption Standard Hardware Accelerator (AESA) supporting AES-128 and AES-256 in ECB, CBC, and CTR modes, along with a True Random Number Generator (RNGA). These are enabled by the "B" in the part number per Figure 1.1 of the datasheet. The AESA executes 128-bit encryption in 176 cycles and complies with FIPS PUB 197-providing secure firmware updates, encrypted communication, and trusted boot functionality without burdening the CPU.

What package type and pin count does the R5F51406BDFM#30 use?

The R5F51406BDFM#30 uses the PLQP0064KB-C package: a 64-pin Low-profile Quad Flat Package with 10 mm × 10 mm body size and 0.5 mm lead pitch. This is explicitly defined in Table 1.3 (List of Products) and Figure 1.1 (Part Number Decoding) of the R01DS0379EJ0120 datasheet. It provides 53 general-purpose I/O pins, 47 open-drain outputs, and 4 5-V tolerant inputs-optimized for compact industrial control boards requiring moderate I/O density and thermal efficiency.

Which communication interfaces are supported by the R5F51406BDFM#30?

The R5F51406BDFM#30 supports CAN 2.0B (1 Mbps), three SCIg channels (asynchronous/clock-synchronous/LIN), two SCIk channels (with RXD sampling adjustment), one SCIh channel (LIN/extended serial), one RIIC interface (I2C/SMBus, up to 400 kbps), and one RSPI channel (SPI, up to 16 Mbps). All are confirmed in Table 1.1 and Table 1.2 of the R01DS0379EJ0120 datasheet. No Ethernet, USB, or Bluetooth interfaces are integrated-the device relies on external PHYs or modules for those protocols.

What is the operating temperature range and supply voltage specification for the R5F51406BDFM#30?

The R5F51406BDFM#30 is rated for industrial operation from –40°C to +85°C (denoted by "D" in the part number) and operates from a single 1.8 V to 5.5 V supply. Its supply current is 58 µA/MHz in high-speed mode and just 0.25 µA (typ.) in software standby mode at 25°C. These values are specified in the "Low power design and architecture" section and Table 1.1 of the R01DS0379EJ0120 datasheet, confirming suitability for wide-input industrial power rails and battery-backed applications.