Renesas R5F51406ADFM#30

Overview

R5F51406ADFM#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 unit supporting up to 32 keys. It targets low-power industrial control and sensor-based HMI applications.

For engineers reviewing the R5F51406ADFM#30 datasheet, R5F51406ADFM#30 pinout, R5F51406ADFM#30 application, or R5F51406ADFM#30 equivalent, key selection criteria include its 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch) package, –40 to +85°C temperature grade, absence of hardware encryption (AESA/RNG), and real-time clock omission in this variant - all confirmed in Table 1.2 and Figure 1.1 of R01DS0379EJ0120 Rev.1.20.

Technical Context

The R5F51406ADFM#30 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 zero-wait-state SRAM and flash with configurable wait states (no-wait ≤32 MHz, one-wait 32–48 MHz), plus background-programmable 8 KB data flash rated for 1M erase/program cycles.

Peripheral integration centers on event-driven operation: the Event Link Controller (ELC) enables direct module triggering without CPU intervention, while the Data Transfer Controller (DTC) supports five transfer modes including block and repeat. The MCU omits RTC and hardware encryption modules per package-specific function mapping in Table 1.2, distinguishing it from 80-pin variants.

Key Specifications

Pinout & Package

R5F51406ADFM#30 uses a 64-pin LFQFP package (PLQP0064KB-C), measuring 10 × 10 mm with 0.5 mm pitch, lead-free and RoHS-compliant. Pin functions are defined per Table 1.4 of R01DS0379EJ0120 Rev.1.20, with dedicated signals for MTU waveform output, SCI/RSPI/I²C buses, CAN transceiver interface, and capacitive touch electrode inputs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51406ADFM#30, the R5F51406ADFN#30 adds RTC and A/D channels in a larger package, while R5F51405ADFM#30 reduces memory and removes CAN - making the R5F51406ADFM#30 the optimal balance of I/O density, analog capability, and communication flexibility in the 64-pin RX140 family.

Availability

R5F51406ADFM#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart appliance control panels, PLC I/O modules, and energy meter communication gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51406ADFM#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-sensitive, low-power industrial and consumer applications requiring rich analog integration, robust communication interfaces, and functional safety support - with R5F51406ADFM#30 targeting space-constrained designs needing CAN and capacitive touch in a 64-pin footprint.

FAQ

What is the maximum operating frequency and core type of the R5F51406ADFM#30?

The R5F51406ADFM#30 features a 32-bit RXv2 CPU core with a maximum operating frequency of 48 MHz, achieving 204 CoreMark performance. Its Harvard architecture with 5-stage pipeline and variable-length instruction set enables high code density and deterministic real-time execution. This specification is confirmed in Table 1.1 and Section 1.1 of R01DS0379EJ0120 Rev.1.20, and applies specifically to the R5F51406ADFM#30 variant in PLQP0064KB-C package.

Does the R5F51406ADFM#30 include hardware encryption or a real-time clock (RTC)?

No, the R5F51406ADFM#30 does not include hardware encryption (AESA/RNG) or a real-time clock (RTCB). Per Table 1.2 of R01DS0379EJ0120 Rev.1.20, RTC is only available in 80-pin and certain 64-pin LQFP variants, and AESA/RNG are excluded from all 'A'-suffix parts like R5F51406ADFM#30. This distinguishes it from 'B'-suffix variants (e.g., R5F51406BDFM#30) which include encryption but share identical package and pinout.

How many analog-to-digital converter (A/D) channels does the R5F51406ADFM#30 support?

The R5F51406ADFM#30 supports 15 external analog input channels and one internal temperature sensor channel via its 12-bit S12ADE A/D converter. This count is specified in Table 1.2 for 64-pin LFQFP (PLQP0064KB-C) packages and confirmed on Page 4 of R01DS0379EJ0120 Rev.1.20. The minimum conversion time is 0.67 µs at 48 MHz ADCLK, and per-channel sampling time configuration is supported.

What communication interfaces are integrated into the R5F51406ADFM#30?

The R5F51406ADFM#30 integrates CAN 2.0B (1 Mbps), two SCIg channels (SCI6, SCI8), two SCIk channels (SCI1, SCI5), one RIIC (I²C/SMBus), and one RSPI (16 Mbps). As documented in Table 1.2 and Section 1.4, it lacks SCIh and full SCIg complement found in 80-pin variants, but retains sufficient serial interfaces for industrial gateway and HMI applications within its 64-pin constraint.

What is the package type and pin count of the R5F51406ADFM#30?

The R5F51406ADFM#30 uses a 64-pin LFQFP package designated PLQP0064KB-C, measuring 10 × 10 mm with 0.5 mm pitch. This is explicitly stated in Table 1.3 (List of Products) and Figure 1.1 (Part Number Decoding) of R01DS0379EJ0120 Rev.1.20, where 'FM' in the part number decodes to 'LFQFP/64/0.50'. The package is lead-free and RoHS-compliant.