Renesas R5F51406BGFL#10

Overview

R5F51406BGFL#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, AES-128/256 hardware accelerator, and capacitive touch sensing unit supporting up to 24 keys - deployed in industrial HMI and smart sensor nodes requiring secure, low-power real-time control.

For engineers reviewing the R5F51406BGFL#10 datasheet, R5F51406BGFL#10 pinout, R5F51406BGFL#10 application, or R5F51406BGFL#10 equivalent, key selection criteria include its −40°C to +105°C operating range, 48-pin LFQFP (PLQP0048KB-B) package with 39 GPIOs, integrated CAN 2.0B interface, and IEC60730-compliant self-test functions for safety-critical firmware updates.

Technical Context

The R5F51406BGFL#10 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions - enabling 204 CoreMark at 48 MHz. It integrates a 12-bit A/D converter with 11 external channels, 0.67 µs conversion time at 48 MHz ADCLK, and double-trigger mode for motor current sampling.

Its clock system includes high-speed on-chip oscillator (48 MHz ±1%), PLL, sub-clock (32.768 kHz), and CAC for frequency accuracy validation. Power management supports four low-power modes, including software standby with 0.25 µA typical current and 6.2 µs wake-up from HOCO 32 MHz.

Key Specifications

Pinout & Package

Package: PLQP0048KB-B - 48-pin Low-Profile Quad Flat Package, 7 mm × 7 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 32-bit industrial MCU applications.

Compared with R5F51406ADFL#30 and R5F51405BGFL#30, the R5F51406BGFL#10 uniquely combines extended temperature operation (+105°C), hardware AES/RNG, and full 256 KB flash - making it optimal for thermally demanding, security-aware industrial edge nodes.

Availability

R5F51406BGFL#10 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, industrial HMI panels, and automated test equipment requiring stable component supply across extended temperature and long product lifecycles.

Supply support for R5F51406BGFL#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 targets cost-sensitive, safety-aware industrial applications - delivering high-performance 32-bit MCUs with integrated functional safety features, low-power operation, and rich analog/motor control peripherals.

FAQ

What is the maximum operating frequency and core type of the R5F51406BGFL#10?

The R5F51406BGFL#10 features a 32-bit RXv2 CPU core with a maximum operating frequency of 48 MHz. It achieves 204 CoreMark performance at this speed and supports single-cycle instruction execution for critical real-time tasks. The core includes an on-chip FPU compliant with IEEE-754 single-precision standards and a 32-bit hardware divider completing operations in two clock cycles. This makes the R5F51406BGFL#10 suitable for deterministic control loops in motor drives and sensor fusion applications.

Does the R5F51406BGFL#10 support CAN communication, and what version is implemented?

Yes, the R5F51406BGFL#10 integrates a CAN module compliant with ISO 11898-1, supporting both standard and extended frames at up to 1 Mbps. It provides 16 mailboxes for flexible message filtering and prioritization, and operates independently of the CPU via the Event Link Controller (ELC) for low-latency response. This implementation is fully compatible with industrial fieldbus protocols and automotive diagnostics - confirmed in the R01DS0379EJ0120 datasheet section 37. The R5F51406BGFL#10 does not require external transceivers for physical layer interfacing.

What are the memory resources available on the R5F51406BGFL#10?

The R5F51406BGFL#10 includes 256 KB of on-chip flash memory for program storage, 64 KB of SRAM with no wait states, and 8 KB of data flash rated for 1,000,000 program/erase cycles. Flash supports programming at 1.8 V and includes background operation (BGO) for concurrent read/write. SRAM is accessible at full 48 MHz speed, and data flash enables reliable parameter storage across power cycles. These memory resources are fixed for the R5F51406BGFL#10 and match the "6" memory code in its part number.

What is the operating temperature range and package type of the R5F51406BGFL#10?

The R5F51406BGFL#10 is specified for operation from −40°C to +105°C (G-grade) and uses the PLQP0048KB-B package: a 48-pin Low-Profile Quad Flat Package measuring 7 mm × 7 mm with 0.5 mm lead pitch and an exposed thermal pad. This package supports reflow soldering and provides 39 general-purpose I/O pins, including 47 open-drain outputs and 2 5-V-tolerant inputs. The "G" in the part number explicitly denotes the extended temperature grade.

Does the R5F51406BGFL#10 include hardware encryption and random number generation?

Yes, the R5F51406BGFL#10 includes 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 entropy. AES-128 executes in 176 cycles and AES-256 in 240 cycles - enabling efficient TLS handshake offload and secure firmware updates. The "B" in the part number confirms inclusion of these optional security modules, distinguishing it from "A" variants like R5F51406ADFL#30 which omit them.