Renesas R5F51406BGFN#30

Overview

R5F51406BGFN#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 –40°C to +105°C operation in an 80-pin LFQFP (12 × 12 mm, 0.5 mm pitch) package and targets industrial motor control, smart sensors, and IEC60730-compliant appliance systems.

For engineers reviewing the R5F51406BGFN#30 datasheet, R5F51406BGFN#30 pinout, R5F51406BGFN#30 application, or R5F51406BGFN#30 equivalent, key selection criteria include its integrated CAN interface, 12-bit A/D with 0.67 µs conversion time, dual 8-bit D/A outputs, capacitive touch support (up to 36 keys), and hardware encryption for secure firmware updates and data handling.

Technical Context

The R5F51406BGFN#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 32-bit FPU compliant with IEEE-754 and a dedicated 32-bit divider completing division in two clock cycles.

Its low-power architecture includes four operational modes (sleep, deep sleep, software standby, snooze), with 0.25 µA typical supply current in software standby and 6.2 µs wake-up time from that mode using the 32 MHz HOCO. Clock generation supports multiple sources including PLL, HOCO (±1%), LOCO, and sub-clock oscillator (32.768 kHz), with independent domain clocks (ICLK, PCLKB, FCLK) configurable per peripheral.

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.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51406ADFN#30, the R5F51406BGFN#30 adds hardware encryption and extends temperature range-justifying its use in secure, high-reliability environments. Against R5F51405BGFN#30, it provides double flash/SRAM capacity and data flash endurance-essential for field-upgradable firmware and persistent parameter storage.

Availability

R5F51406BGFN#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor hubs, IEC60730-certified appliance control, and automotive body electronics requiring stable component supply across extended temperature and long production lifecycles.

Supply support for R5F51406BGFN#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 robust real-time performance, functional safety support, and embedded security-targeting white goods, factory automation, and building controls.

FAQ

What is the maximum operating frequency and core type of the R5F51406BGFN#30?

The R5F51406BGFN#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 Harvard architecture. The core supports IEEE-754-compliant single-precision FPU and a dedicated 32-bit divider completing operations in two clock cycles-making it suitable for deterministic real-time control tasks.

Does the R5F51406BGFN#30 include hardware encryption capabilities?

Yes, the R5F51406BGFN#30 includes the Advanced Encryption Standard Hardware Accelerator (AESA) supporting AES-128 and AES-256 in ECB, CBC, and CTR modes. It also integrates a True Random Number Generator (RNGA). These modules are enabled because the part number contains "B" (encryption included) and "G" (–40°C to +105°C grade), distinguishing it from non-secure variants like R5F51406ADFN#30.

What package type and pin count does the R5F51406BGFN#30 use?

The R5F51406BGFN#30 uses the PLQP0080KB-B package: an 80-pin Low-Profile Quad Flat Package with 12 × 12 mm body size and 0.5 mm pin pitch. This package includes an exposed thermal pad and is RoHS-compliant. Pin compatibility is maintained across all RX140 80-pin variants, enabling design reuse when migrating between memory or temperature grades.

How many A/D converter channels and what resolution does the R5F51406BGFN#30 support?

The R5F51406BGFN#30 integrates the S12ADE 12-bit A/D converter with 18 total channels: 17 external input pins plus one internal channel for temperature sensor measurement. Conversion time is as fast as 0.67 µs when ADCLK runs at 48 MHz. Each channel supports programmable sampling time, and the module includes self-diagnostic, disconnection detection, and double-trigger (data duplication) features for motor control reliability.

Is CAN interface support available on the R5F51406BGFN#30, and what standard does it meet?

Yes, the R5F51406BGFN#30 includes one RSCAN CAN module compliant with ISO11898-1, supporting both standard and extended frames at up to 1 Mbps. It provides 16 mailboxes and integrates seamlessly with the Event Link Controller for autonomous message transmission/reception. CAN signals are routed to dedicated pins (CAN_TX/CAN_RX), requiring an external CAN transceiver for physical layer connection-making it suitable for industrial fieldbus and automotive body network applications.