Renesas R5F51406BGFM#10

Overview

R5F51406BGFM#10 from Renesas is a 32-bit RXv2 core MCU operating at up to 48 MHz, featuring 256 KB flash, 64 KB SRAM, 8 KB data flash, on-chip FPU, and integrated CAN, 12-bit A/D (18 channels), dual 8-bit D/A, capacitive touch sensing (36 keys), and AES/RNG encryption. It targets industrial control panels requiring real-time responsiveness, secure firmware updates, and low-power operation across –40°C to +105°C.

For engineers reviewing the R5F51406BGFM#10 datasheet, R5F51406BGFM#10 pinout, R5F51406BGFM#10 application, or R5F51406BGFM#10 equivalent, this page delivers verified technical context, package-specific pin roles, functional alternatives with documented differences, and supply-chain support for high-reliability embedded designs.

Technical Context

The R5F51406BGFM#10 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 × 32-bit multiplier, and 32-bit divider completing in two cycles.

Its peripheral set includes a single-channel ISO 11898-1 CAN module (up to 1 Mbps), six SCI channels (including LIN-capable SCIh), one RIIC interface (400 kbps), one RSPI (16 Mbps), and ELC-driven event-triggered operation-allowing timer, ADC, and communication modules to operate without CPU intervention during sleep modes.

Key Specifications

Pinout & Package

R5F51406BGFM#10 uses the PLQP0064KB-C package: 64-pin LFQFP, 10 mm × 10 mm, 0.5 mm pitch, exposed pad, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51406BGFM#10, R5F51406ADFM#30 removes encryption capability while lowering cost and temperature grade, whereas R5F51405BGFM#30 retains the +105°C rating but halves flash/SRAM capacity-making both viable for derivative designs where security or memory scale can be traded for BOM optimization.

Availability

R5F51406BGFM#10 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control gateways, and secure industrial gateways requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R5F51406BGFM#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-optimized, high-integrity industrial applications demanding real-time performance, functional safety support (IEC 60730), and integrated human-machine interface capabilities-including capacitive touch and secure firmware execution.

FAQ

What is the maximum operating frequency and core type of the R5F51406BGFM#10?

The R5F51406BGFM#10 features a 32-bit RXv2 CPU core with a maximum operating frequency of 48 MHz. It achieves 204 CoreMark at this speed and includes a 5-stage pipeline, variable-length instruction set, and Harvard architecture. The core supports IEEE-754-compliant single-precision floating-point operations via its on-chip FPU, making the R5F51406BGFM#10 suitable for computationally intensive industrial control tasks.

Does the R5F51406BGFM#10 include hardware encryption and random number generation?

Yes, the R5F51406BGFM#10 integrates an Advanced Encryption Standard hardware accelerator (AESA) supporting AES-128 and AES-256 in ECB, CBC, and CTR modes, plus a True Random Number Generator (RNGA) producing 32-bit values. These modules are present because the "B" in the part number denotes inclusion of encryption functionality, and the "G" suffix confirms the +105°C temperature grade-both verified in Table 1.3 of the R01DS0379EJ0120 datasheet. This makes the R5F51406BGFM#10 appropriate for secure firmware updates and cryptographic key derivation in industrial edge devices.

What package type and pin count does the R5F51406BGFM#10 use?

The R5F51406BGFM#10 uses the PLQP0064KB-C package: a 64-pin Low-Profile Quad Flat Package with 0.5 mm pitch, 10 mm × 10 mm body size, and exposed thermal pad. This is confirmed by Figure 1.1 (part number decoding) and Table 1.3 in the R01DS0379EJ0120 datasheet, where "FM" maps to LFQFP/64/0.50. The package supports reflow soldering, offers good thermal performance, and is pin-compatible within the RX140 64-pin LFQFP variants-enabling layout reuse across memory-graded SKUs like R5F51405BGFM#30.

How many analog-to-digital converter channels does the R5F51406BGFM#10 support, and what is its conversion speed?

The R5F51406BGFM#10 integrates the S12ADE 12-bit A/D converter with 17 external input channels and one internal channel (temperature sensor), totaling 18 channels. Its minimum conversion time is 0.67 µs per channel when ADCLK runs at 48 MHz, as specified in Table 1.1 and section 35 of the hardware manual. The R5F51406BGFM#10 also supports per-channel sampling time configuration, double-trigger mode for motor control redundancy, and analog input disconnection detection-enhancing reliability in critical sensing applications.

Is the R5F51406BGFM#10 qualified for extended temperature operation, and what is its rated range?

Yes, the R5F51406BGFM#10 is rated for extended industrial temperature operation from –40°C to +105°C. This is explicitly indicated by the "G" in its part number per Figure 1.1 of the R01DS0379EJ0120 datasheet, and confirmed in Table 1.3 under "Operating Temperature." The device maintains full specification compliance-including 48 MHz operation, 0.25 µA software standby current, and CAN timing integrity-across this full range, making the R5F51406BGFM#10 suitable for deployment in uncooled control cabinets, motor drives, and outdoor industrial equipment.