Renesas R5F51406ADFN#10

Overview

R5F51406ADFN#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, 12-bit A/D converter (18 channels), dual 8-bit D/A converters, and integrated CAN 2.0B module compliant with ISO 11898-1. It targets industrial control and touch-enabled HMI applications requiring IEC60730 compliance and low-power operation down to 0.25 µA in software standby mode.

For engineers reviewing the R5F51406ADFN#10 datasheet, R5F51406ADFN#10 pinout, R5F51406ADFN#10 application, or R5F51406ADFN#10 equivalent, key selection criteria include its 80-pin LFQFP package (PLQP0080KB-B), 48 MHz max clock with on-chip FPU and DSP instructions, 36-key capacitive touch sensing unit (CTSU2SL), and absence of hardware AES/RNG encryption-making it suitable for cost-sensitive, safety-certified embedded systems where cryptographic acceleration is not required.

Technical Context

The R5F51406ADFN#10 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions, delivering 204 CoreMark at 48 MHz. Its memory subsystem includes no-wait-state SRAM, flash with background programming, and E2 data flash rated for 1 million erase/program cycles.

Peripherals are orchestrated via the Event Link Controller (ELC), enabling interrupt-free inter-module triggering (e.g., MTU timer start of A/D conversion), while the Multi-function Pin Controller (MPC) allows flexible I/O function assignment across 69 general-purpose pins-including 47 open-drain outputs and 4 5-V tolerant inputs-within its 80-pin footprint.

Key Specifications

Pinout & Package

Package: PLQP0080KB-B - 80-pin Low-Profile Quad Flat Package, 12 × 12 mm body, 0.5 mm lead 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 R5F51406BDFN#10, R5F51406ADFN#10 omits hardware encryption but retains full peripheral set and IEC60730 diagnostics; versus R5F51405ADFN#10, it doubles flash/SRAM and adds RTC and full CTSU2SL-making it optimal for feature-rich, safety-compliant HMI and motor control nodes.

Availability

R5F51406ADFN#10 is available at Aetrix Electronics and suitable for industrial motor control, smart home HMI panels, automotive body electronics, and safety-rated PLC I/O nodes requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F51406ADFN#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 automotive, industrial, and IoT markets.

The RX140 Group is designed for cost-effective, safety-certifiable embedded applications demanding high integration, ultra-low power, and rich analog/motor control peripherals-targeting industrial automation, consumer appliances, and building control systems.

FAQ

What is the maximum operating frequency and core type of the R5F51406ADFN#10?

The R5F51406ADFN#10 features a 32-bit RXv2 CPU core with a maximum operating frequency of 48 MHz, achieving 204 CoreMark performance. It uses a CISC Harvard architecture with a 5-stage pipeline and variable-length instructions. The core includes an on-chip FPU compliant with IEEE-754 single-precision standard and hardware divider completing 32-bit ÷ 32-bit operations in two clock cycles. This makes R5F51406ADFN#10 suitable for real-time control and signal processing tasks requiring deterministic timing.

Does the R5F51406ADFN#10 include hardware encryption capabilities?

No, the R5F51406ADFN#10 does not include hardware encryption modules. Its part number suffix "A" explicitly denotes absence of the AESA (Advanced Encryption Standard Accelerator) and RNGA (True Random Number Generator). For applications requiring cryptographic acceleration-such as secure boot, firmware signing, or TLS offload-the R5F51406BDFN#10 variant (with "B" suffix) should be selected instead. All other peripherals, memory sizes, and pinout remain identical between R5F51406ADFN#10 and R5F51406BDFN#10.

What package type and pin count does the R5F51406ADFN#10 use?

The R5F51406ADFN#10 uses the PLQP0080KB-B package: an 80-pin Low-Profile Quad Flat Package with 12 × 12 mm body size and 0.5 mm lead pitch. This package includes an exposed thermal pad for enhanced heat dissipation and is RoHS-compliant. It supports 69 general-purpose I/O pins (including 47 open-drain outputs and 4 5-V tolerant inputs), making R5F51406ADFN#10 ideal for complex industrial interfaces requiring high pin density and robust I/O flexibility.

How many analog-to-digital converter channels does the R5F51406ADFN#10 support, and what is its conversion speed?

The R5F51406ADFN#10 integrates the S12ADE 12-bit A/D converter with 17 external analog input channels and one internal channel (temperature sensor), totaling 18 channels. At maximum ADCLK of 48 MHz, it achieves a minimum conversion time of 0.67 µs per channel. Each channel supports programmable sampling time, conversion result comparison, and double-trigger mode for motor control synchronization. These capabilities make R5F51406ADFN#10 well-suited for high-fidelity current/voltage sensing in real-time motor control applications.

Is the R5F51406ADFN#10 qualified for IEC60730 Class B compliance, and which self-test features does it support?

Yes, the R5F51406ADFN#10 includes dedicated hardware and firmware-assisted features for IEC60730 Class B compliance. It supports self-diagnostic functions for the A/D converter, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT), RAM testing (via Data Operation Circuit), and analog input disconnection detection. These features reduce certification effort for household appliances and industrial equipment. The presence of multiple voltage detection circuits (LVD0–LVD2) and recovery time guarantees further strengthen R5F51406ADFN#10's suitability for safety-critical applications.