Renesas R5F51405ADFK#30

Overview

R5F51405ADFK#30 from Renesas is a 32-bit RXv2 core MCU operating at up to 48 MHz, featuring 128 KB flash, 32 KB SRAM, 12-bit A/D converter (15 channels), two 8-bit D/A channels, and CAN 2.0B compliance. It integrates capacitive touch sensing (32 keys), hardware AES encryption, and operates from 1.8–5.5 V across –40 to +85°C for industrial HMI and motor control applications.

For engineers reviewing the R5F51405ADFK#30 datasheet, R5F51405ADFK#30 pinout, R5F51405ADFK#30 application, or R5F51405ADFK#30 equivalent, key selection criteria include its LQFP-64 (0.8 mm pitch) package, 48-MHz real-time performance (204 CoreMark), IEC60730 safety support, and integrated RTC with calendar mode-critical for deterministic timing in embedded control systems.

Technical Context

The R5F51405ADFK#30 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, 32-bit FPU compliant with IEEE-754, and on-chip 32-bit divider completing in two cycles. Its clock system supports HOCO (48 MHz ±1%), PLL, sub-clock (32.768 kHz), and IWDT-dedicated 15-kHz oscillator, enabling precise timing for RTC and low-power wake-up.

Peripheral integration includes ELC for interrupt-free module linking, DTC for five transfer modes, and MPC for flexible pin assignment. The MCU supports software standby mode with 0.25 µA typical current and 6.2 µs wake-up time using HOCO, making it suitable for battery-backed industrial sensors and portable control units.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51405ADFK#30, R5F51405ADFM#30 offers identical functionality in a smaller package but demands tighter layout tolerances, while R5F51403ADFK#30 sacrifices CAN, RTC, and touch to reduce memory and feature count-making it viable only where those capabilities are unused.

Availability

R5F51405ADFK#30 is available at Aetrix Electronics and suitable for industrial motor control, smart home HMI, and factory automation I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F51405ADFK#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, and power solutions for industrial, automotive, and IoT markets.

The RX140 Group targets cost-optimized, safety-aware embedded control applications, combining real-time performance, low-power operation, and integrated functional safety features for industrial and consumer equipment.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F51405ADFK#30?

The R5F51405ADFK#30 operates at a maximum frequency of 48 MHz and achieves 204 CoreMark in benchmark testing. This performance stems from its RXv2 CPU core with 5-stage pipeline, variable-length instructions, and ultra-compact code density. The R5F51405ADFK#30 delivers deterministic real-time response suitable for motor control and industrial PLC edge nodes.

Does the R5F51405ADFK#30 include hardware AES encryption and what key lengths does it support?

Yes, the R5F51405ADFK#30 includes an Advanced Encryption Standard hardware accelerator (AESA) supporting 128-bit and 256-bit key lengths in ECB, CBC, and CTR modes. It complies with FIPS PUB 197 and executes 128-bit AES in 176 cycles. The R5F51405ADFK#30 uses this module for secure boot, encrypted firmware updates, and authenticated communication without burdening the CPU.

What package type and pin count does the R5F51405ADFK#30 use?

The R5F51405ADFK#30 uses a 64-pin LQFP package designated PLQP0064GA-A, measuring 14 × 14 mm with 0.8 mm pitch. This package provides 53 general-purpose I/O pins, including 5-V tolerant inputs and open-drain outputs. The R5F51405ADFK#30's pinout supports full peripheral access-including CAN, multiple SCI channels, and CTSU-without multiplexing conflicts.

How many A/D converter channels does the R5F51405ADFK#30 support and what is its minimum conversion time?

The R5F51405ADFK#30 integrates a 12-bit A/D converter with 15 external input channels and one internal channel (temperature sensor). Its minimum conversion time is 0.67 µs per channel when ADCLK runs at 48 MHz. The R5F51405ADFK#30 supports scan, group, and double-trigger modes-enabling synchronized sampling for motor control and sensor fusion applications.

Is the R5F51405ADFK#30 qualified for IEC60730 Class B compliance and what safety features does it include?

Yes, the R5F51405ADFK#30 includes hardware-assisted features for IEC60730 Class B compliance, including RAM test assistance via DOC, clock frequency accuracy measurement (CAC), A/D converter self-diagnostic, and analog input disconnection detection. These features are implemented in silicon and documented in Renesas' safety manual. The R5F51405ADFK#30 enables certified firmware development without external safety monitors.