Renesas R5F51406ADFK#30

Overview

R5F51406ADFK#30 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, 12-bit A/D converter (15 channels), two 8-bit D/A channels, CAN 2.0B interface, and capacitive touch sensing (32-key self-capacitance). It targets low-power industrial control and consumer HMI applications requiring IEC60730 compliance and secure firmware updates.

For engineers reviewing the R5F51406ADFK#30 datasheet, R5F51406ADFK#30 pinout, R5F51406ADFK#30 application, or R5F51406ADFK#30 equivalent, this page delivers verified specifications, package mapping (PLQP0064GA-A, 64-pin LQFP, 14×14 mm, 0.8 mm pitch), functional pin roles, real-world use cases, and two validated alternative parts with documented technical and application differences.

Technical Context

The R5F51406ADFK#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 hardware divider (2-cycle latency), and DSP extensions including 32-bit MAC and 16-bit multiply-subtract operations.

Its peripheral set includes a CAN module compliant with ISO11898-1 (up to 1 Mbps), ELC for interrupt-free inter-module triggering, DTC for five transfer modes, and CTSU2SL supporting 32-key self-capacitance touch sensing. Clocking supports HOCO (48 MHz ±1%), sub-clock (32.768 kHz), and CAC for frequency accuracy measurement.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51406ADFK#30, R5F51406ADFM#30 offers identical functionality in a smaller 10×10 mm footprint but demands tighter layout tolerances, while R5F51405ADFK#30 reduces memory capacity by 50% without altering package or peripheral availability-making it a direct drop-in for less complex firmware.

Availability

R5F51406ADFK#30 is available at Aetrix Electronics and suitable for industrial motor control, smart appliance HMI, energy monitoring gateways, and factory automation nodes requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for R5F51406ADFK#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 is designed for cost-optimized, low-power general-purpose control applications-emphasizing IEC60730 compliance, rich analog integration, and capacitive touch capability without encryption hardware.

FAQ

What is the maximum operating frequency and clock source accuracy of the R5F51406ADFK#30?

The R5F51406ADFK#30 operates at a maximum frequency of 48 MHz. Its high-speed on-chip oscillator (HOCO) delivers ±1% accuracy across temperature and voltage ranges, eliminating the need for an external crystal in many timing-tolerant applications. This specification is confirmed in the R01DS0379EJ0120 datasheet Rev.1.20, Section 1.1. The R5F51406ADFK#30 also supports external crystal inputs (up to 20 MHz) and PLL multiplication for higher precision where required.

Does the R5F51406ADFK#30 include hardware encryption acceleration?

No, the R5F51406ADFK#30 does not include AES or RNG hardware acceleration. The "A" in the part number suffix indicates absence of the AESA and RNGA modules. Encryption functionality is only present in "B"-suffix variants (e.g., R5F51406BDFK#30). This distinction is explicitly defined in Figure 1.1 (Part Number Decoding) and Table 1.3 of the R01DS0379EJ0120 datasheet. Firmware-level cryptography must be implemented in software for the R5F51406ADFK#30.

How many analog input channels does the 12-bit A/D converter support on the R5F51406ADFK#30?

The R5F51406ADFK#30's S12ADE 12-bit A/D converter supports 15 external analog input channels (AD00–AD14) plus one internal channel for temperature sensor readings. This count is confirmed in Table 1.2 ("Comparison of Functions") and Section 35 of the User's Manual referenced in the R01DS0379EJ0120 datasheet. The number reflects the PLQP0064GA-A package variant-other packages offer fewer channels (e.g., 48-pin variants support 11 channels).

What is the package type and physical dimension of the R5F51406ADFK#30?

The R5F51406ADFK#30 uses the PLQP0064GA-A package: a 64-pin LQFP with 14 × 14 mm body size and 0.8 mm pin pitch. This is unambiguously specified in Table 1.3 ("List of Products") and Figure 1.1 ("How to Read the Product Part Number") of the R01DS0379EJ0120 datasheet. It is distinct from the 0.5 mm pitch 64-pin LFQFP (PLQP0064KB-C) used by other RX140 variants like R5F51406ADFM#30.

Can the R5F51406ADFK#30 operate in low-power modes while maintaining RTC and touch functionality?

Yes-the R5F51406ADFK#30 supports software standby mode with 0.25 µA typical current (Ta = 25°C), during which the sub-clock oscillator continues driving the RTCB and the CTSU2SL remains operational for periodic touch scanning. The low-power timer (LPTa) can generate wake-up events, and the RTC retains calendar mode with leap-year correction. These capabilities are detailed in Sections 1.1 ("Low power consumption functions") and 3.3.2 ("Software Standby Mode") of the R01DS0379EJ0120 datasheet.