Renesas R5F51405BDFM#30

Overview

R5F51405BDFM#30 from Renesas is a 32-bit RXv2 core MCU operating at up to 48 MHz, featuring 128 KB flash, 32 KB SRAM, on-chip FPU, 12-bit A/D converter (15 channels), two 8-bit D/A channels, and integrated AES-128/256 hardware acceleration. It supports CAN 2.0B (1 Mbps), six SCI channels, I²C, RSPI, capacitive touch sensing (32 keys), and operates from 1.8–5.5 V in industrial temperature range (–40 to +85°C).

For engineers reviewing the R5F51405BDFM#30 datasheet, R5F51405BDFM#30 pinout, R5F51405BDFM#30 application, or R5F51405BDFM#30 equivalent, this page delivers verified specifications, package mapping to PLQP0064KB-C (10 × 10 mm, 0.5 mm pitch), validated pin functions, confirmed low-power modes (0.25 µA standby), and two technically documented alternative parts for industrial control and touch-enabled HMI designs.

Technical Context

The R5F51405BDFM#30 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling 204 CoreMark at 48 MHz. It integrates an IEEE-754-compliant 32-bit FPU, 32-bit multiplier/divider, and DSP extensions including 32-bit MAC and 16-bit multiply-subtract.

Its peripheral set includes ELC-driven event-triggered operation across MTU2, CMT, RTCB, and S12ADE-allowing CPU sleep during timer-triggered ADC conversions or PWM updates. The CTSU2SL unit supports self-capacitance (32-key) and mutual-capacitance (8×8 matrix) touch sensing with automatic correction and judgment, while AESA and RNGA provide certified cryptographic services for IEC60730 Class B compliance.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51405BDFM#30, R5F51405ADFM#30 removes cryptographic engines but retains identical real-time performance and analog capability, while R5F51403BDFM#30 reduces memory and peripheral count-making both viable alternatives only when specific security or interface requirements are relaxed.

Availability

R5F51405BDFM#30 is available at Aetrix Electronics and suitable for industrial motor control, smart home HMI panels, medical front-ends, and factory automation I/O modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F51405BDFM#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, low-power industrial and consumer applications requiring robust real-time performance, integrated analog, touch sensing, and functional safety support-designed to replace legacy 8/16-bit MCUs with scalable 32-bit capability.

FAQ

What is the maximum operating frequency and core type of the R5F51405BDFM#30?

The R5F51405BDFM#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 32-bit FPU compliant with IEEE-754. This core enables deterministic real-time execution for motor control and industrial automation tasks where cycle-accurate timing is critical. The R5F51405BDFM#30 uses a Harvard architecture with 5-stage pipeline and variable-length instructions to optimize code density and throughput.

Does the R5F51405BDFM#30 include hardware encryption acceleration?

Yes, the R5F51405BDFM#30 integrates the Advanced Encryption Standard Hardware Accelerator (AESA) supporting AES-128 and AES-256 in ECB, CBC, and CTR modes, plus a True Random Number Generator (RNGA). These modules enable secure firmware updates, encrypted data logging, and IEC60730 Class B compliance. The R5F51405BDFM#30 executes 128-bit AES encryption in 176 cycles-significantly reducing CPU load compared to software-only implementations.

What package type and pin count does the R5F51405BDFM#30 use?

The R5F51405BDFM#30 is packaged in PLQP0064KB-C: a 64-pin Low-Profile Quad Flat Package measuring 10 × 10 mm with 0.5 mm pitch and an exposed thermal pad. This RoHS-compliant package supports reflow soldering and provides thermal performance suitable for industrial environments. The R5F51405BDFM#30's pinout includes dedicated MTU2 waveform outputs, 32 CTSU touch inputs, CAN_TX/RX, and multiple SCI/I²C/RSPI interfaces-all mapped to this 64-pin footprint.

How many analog-to-digital converter channels does the R5F51405BDFM#30 support?

The R5F51405BDFM#30 integrates the S12ADE 12-bit A/D converter with 15 external input channels and one internal temperature sensor channel. Its minimum conversion time is 0.67 µs at 48 MHz ADCLK, supporting scan, group, and continuous modes with per-channel sampling time configuration. The R5F51405BDFM#30 also provides conversion result comparison, double-trigger mode for motor control, and analog input disconnection detection-enhancing reliability in industrial sensing applications.

What low-power capabilities does the R5F51405BDFM#30 offer for battery-operated devices?

The R5F51405BDFM#30 offers four low-power consumption modes-including software standby with 0.25 µA (typ.) current draw at 25°C-and a dedicated Low Power Timer (LPTa) that runs from the 32.768 kHz sub-clock during standby. Recovery time from software standby is 6.2 µs (typ.), enabling rapid wake-up for event-driven sensing. The R5F51405BDFM#30 operates from 1.8–5.5 V, making it suitable for single-cell Li-ion, coin-cell, or wide-input industrial power supplies.