Renesas R5F51406BDFN#10

Overview

R5F51406BDFN#10 from Renesas is a 32-bit RXv2 core MCU operating at up to 48 MHz, featuring 256 KB on-chip flash, 64 KB SRAM, 8 KB data flash, integrated FPU, AES-128/256 hardware accelerator, and capacitive touch sensing unit supporting up to 36 keys - deployed in industrial HMI and smart sensor nodes requiring secure, low-power real-time control.

For engineers reviewing the R5F51406BDFN#10 datasheet, R5F51406BDFN#10 pinout, R5F51406BDFN#10 application, or R5F51406BDFN#10 equivalent, key selection considerations include its 80-pin LFQFP (PLQP0080KB-B) package, 1.8–5.5 V single-supply operation, IEC60730-compliant self-test features, CAN 2.0B interface, and dual 8-bit D/A converters for analog feedback loops.

Technical Context

The R5F51406BDFN#10 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and ultra-compact code density. It integrates an on-chip 32-bit multiplier, 32-bit divider (2-cycle latency), and IEEE-754-compliant 32-bit FPU - enabling deterministic floating-point math for motor control and sensor fusion.

Its low-power design supports four operating modes including software standby (0.25 µA typ.) with 6.2 µs wake-up from HOCO 32 MHz, and includes dedicated peripherals like LPT, RTCB, IWDT with 15 kHz oscillator, and ELC for event-driven peripheral chaining without CPU intervention.

Key Specifications

Pinout & Package

Package: PLQP0080KB-B - 80-pin Low-Profile Quad Flat Package, 12 × 12 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 microcontroller applications.

Compared with R5F51405BDFN#30, R5F51406BDFN#10 provides 128 KB more flash and full RTC/calendar support; versus R5F51406AGFN#30, it trades extended temperature rating for lower cost and standard industrial grade - making R5F51406BDFN#10 optimal for fixed-temperature embedded control with security and touch requirements.

Availability

R5F51406BDFN#10 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control subsystems, and home appliance control boards requiring stable component supply across multi-year production cycles.

Supply support for R5F51406BDFN#10 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 - including R5F51406BDFN#10 - is engineered for secure, low-power real-time control in cost-sensitive industrial and consumer applications, integrating touch, connectivity, and functional safety features into a single chip.

FAQ

What is the maximum operating frequency and core type of the R5F51406BDFN#10?

The R5F51406BDFN#10 features a 32-bit RXv2 CPU core with a maximum operating frequency of 48 MHz. It achieves 204 CoreMark performance at this speed and includes a 5-stage pipeline, variable-length instruction set, and IEEE-754-compliant 32-bit FPU - enabling high-efficiency real-time computation for motor control and sensor processing tasks within the R5F51406BDFN#10.

Does the R5F51406BDFN#10 support hardware encryption and secure boot?

Yes, the R5F51406BDFN#10 integrates the AESA hardware accelerator supporting AES-128 and AES-256 in ECB, CBC, and CTR modes, along with a True Random Number Generator (RNGA). While it does not include a dedicated secure boot ROM, the combination of AESA, RNGA, and IEC60730 self-test features enables robust firmware authentication and cryptographic key management in systems built around the R5F51406BDFN#10.

What package type and pin count does the R5F51406BDFN#10 use?

The R5F51406BDFN#10 uses the PLQP0080KB-B package: an 80-pin Low-Profile Quad Flat Package with 12 × 12 mm body size and 0.5 mm pitch. This package includes an exposed thermal pad and is RoHS compliant - providing mechanical stability and thermal performance suitable for industrial PCB layouts where the R5F51406BDFN#10 serves as the primary MCU.

How many analog-to-digital converter (ADC) channels does the R5F51406BDFN#10 support?

The R5F51406BDFN#10 integrates the S12ADE 12-bit A/D converter with 17 external input channels and one internal channel (temperature sensor), totaling 18 channels. Each external channel supports individually programmable sampling time, and the module offers scan modes, conversion result comparison, and double-trigger functionality - all confirmed in the R5F51406BDFN#10 datasheet for motor control and sensor acquisition use cases.

Is the R5F51406BDFN#10 compatible with IEC60730 Class B safety standards?

Yes, the R5F51406BDFN#10 includes hardware-assisted features for IEC60730 Class B compliance, including self-diagnostic functions for the A/D converter, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT), and RAM test assistance via the Data Operation Circuit (DOC). These capabilities are explicitly documented for the R5F51406BDFN#10 in Renesas' RX140 Group hardware manual and are leveraged in certified appliance and industrial control designs.