Renesas R5F51406ADNE#30

Overview

R5F51406ADNE#30 from Renesas is a 48-MHz 32-bit RXv2 core MCU with on-chip FPU, 256 KB flash, 64 KB SRAM, and 8 KB data flash, designed for industrial touch-control and low-power embedded applications requiring real-time responsiveness, IEC60730 compliance, and CAN communication.

For engineers reviewing the R5F51406ADNE#30 datasheet, R5F51406ADNE#30 pinout, R5F51406ADNE#30 application, or R5F51406ADNE#30 equivalent, this page delivers verified technical context, package-specific peripheral mapping, functional trade-offs versus alternatives, and supply-chain support for production design-in.

Technical Context

The R5F51406ADNE#30 implements the RXv2 CPU core with IEEE-754-compliant 32-bit floating-point unit and 32×32→64-bit hardware multiplier, enabling deterministic math-intensive control loops. Its clock system integrates HOCO (48 MHz ±1%), sub-clock (32.768 kHz), and PLL with CAC-based accuracy monitoring for RTC and safety-critical timing.

Peripheral integration includes a 12-bit A/D converter (17 external +1 internal channels, 0.67 µs conversion), dual 8-bit D/A outputs, CTSU2SL capacitive touch unit supporting up to 24 self-capacitance keys, and one ISO11898-1-compliant CAN channel operating at up to 1 Mbps - all accessible via ELC-triggered event linking without CPU intervention.

Key Specifications

Pinout & Package

PWQN0048KC-A is a 48-pin wettable flank QFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad, optimized for compact industrial PCB layouts and automated optical inspection. Pin functions are fully defined per Renesas R01DS0379EJ0120 Rev.1.20.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51406ADFL#30, R5F51406ADNE#30 offers superior thermal dissipation and board-space efficiency in HWQFN, while R5F51405ADNE#30 reduces BOM cost by removing data flash and halving memory capacity - both retain identical pin-compatible functionality for drop-in replacement in non-memory-constrained designs.

Availability

R5F51406ADNE#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart appliance controllers, energy monitoring gateways, and factory automation nodes requiring stable component supply, long-lifecycle assurance, and traceable sourcing.

Supply support for R5F51406ADNE#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 touch sensing, real-time control, and functional safety support - with R5F51406ADNE#30 optimized for compact, thermally constrained designs using HWQFN packaging.

FAQ

What is the maximum operating frequency and core type of the R5F51406ADNE#30?

The R5F51406ADNE#30 features a 32-bit RXv2 CPU core with a maximum operating frequency of 48 MHz. It achieves 204 CoreMark at that speed and includes an IEEE-754-compliant single-precision floating-point unit, 32×32-bit hardware multiplier, and 32-bit divider completing in two clock cycles. This core enables deterministic real-time control for motor drives and sensor fusion tasks.

Does the R5F51406ADNE#30 include hardware encryption capabilities?

No, the R5F51406ADNE#30 does not include hardware encryption. The 'A' in its part number denotes absence of the AESA (Advanced Encryption Standard Accelerator) and RNGA (True Random Number Generator) modules. For encrypted firmware or secure key generation, designers must select a 'B' variant such as R5F51406BDNE#30, which adds AES-128/256 and true RNG support while maintaining identical pinout and peripheral configuration.

What package type and dimensions does the R5F51406ADNE#30 use?

The R5F51406ADNE#30 uses the PWQN0048KC-A package: a 48-pin wettable flank QFN measuring 7 mm × 7 mm with 0.5 mm pitch and an exposed thermal pad. This package supports automated optical inspection and offers improved thermal performance over equivalent LFQFP variants, making it suitable for space-constrained industrial PCBs with moderate power dissipation requirements.

How many capacitive touch keys does the R5F51406ADNE#30 support in its 48-pin configuration?

In the 48-pin PWQN0048KC-A package, the R5F51406ADNE#30 supports up to 24 self-capacitance touch keys via its CTSU2SL unit. This is confirmed in Table 1.2 of the datasheet, which specifies "24 channels" for CTSU2SL in 48-pin products. Mutual capacitance mode is not supported in this pin count due to routing limitations.

Is the R5F51406ADNE#30 compatible with Renesas' E2 studio and CS+ development tools?

Yes, the R5F51406ADNE#30 is fully supported by Renesas' E2 studio IDE and CS+ integrated development environment. Both tools provide device-specific startup code, peripheral configuration wizards for MTU2, SCI, and CTSU, and debug compatibility via the FINE interface. The MCU's on-chip debugging circuit and standard SWD/FINE protocol ensure seamless programming and real-time tracing during development and validation.