Renesas R5F51405BGFL#10

Overview

R5F51405BGFL#10 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 48 MHz, featuring 128 KB flash, 32 KB SRAM, 12-bit A/D converter with 11 external channels, two 8-bit D/A channels, and integrated capacitive touch sensing supporting up to 24 keys. It targets low-power industrial control and consumer HMI applications requiring IEC60730 compliance, CAN interface, and real-time clock functionality.

For engineers reviewing the R5F51405BGFL#10 datasheet, R5F51405BGFL#10 pinout, R5F51405BGFL#10 application, or R5F51405BGFL#10 equivalent, key selection criteria include its 48-MHz RXv2 CPU with FPU, 1.8–5.5 V single-supply operation, software standby current of 0.25 µA, 64-pin LFQFP (PLQP0064KB-C) package, and support for AES-128/256 encryption hardware acceleration.

Technical Context

The R5F51405BGFL#10 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, 32-bit multiply-accumulate and IEEE-754-compliant single-precision FPU, and on-chip 32-bit divider completing in two cycles. Its clock system integrates HOCO (48 MHz ±1%), sub-clock (32.768 kHz), PLL, and IWDT-dedicated 15-kHz oscillator with CAC for frequency accuracy monitoring.

Peripheral integration includes ELC for event-triggered module activation without CPU intervention, DTC for five transfer modes, MTU2a with six 16-bit timer channels supporting complementary PWM and phase counting, and CTSU2SL enabling self-capacitance (24-key) or mutual-capacitance (8×8 matrix) touch sensing-all while maintaining IEC60730 self-test support for A/D, RTC, IWDT, and RAM.

Key Specifications

Pinout & Package

Package: PLQP0064KB-C - 64-pin Low-Profile Quad Flat Package, 10 × 10 mm body, 0.5 mm pitch, exposed pad, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51405BGFL#10, R5F51405ADFM#30 removes encryption and reduces temperature grade, while R5F51403AGFM#30 cuts memory and removes CAN/RTC-making both viable alternatives only when those features are unused in the target design.

Availability

R5F51405BGFL#10 is available at Aetrix Electronics and suitable for industrial motor drives, smart home HMI panels, automotive body modules, and white goods appliance controllers requiring stable component supply across extended temperature and long product lifecycles.

Supply support for R5F51405BGFL#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-sensitive, low-power embedded applications demanding robust functional safety (IEC60730), rich analog integration, and capacitive touch capability-targeting industrial controls, home appliances, and building automation.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F51405BGFL#10?

The R5F51405BGFL#10 features a 32-bit RXv2 CPU core with a maximum operating frequency of 48 MHz and achieves 204 CoreMark performance. Its architecture includes a 5-stage pipeline, variable-length instructions, on-chip FPU compliant with IEEE-754, and a 32-bit divider completing in two clock cycles. This enables deterministic real-time execution for motor control and sensor processing tasks in the R5F51405BGFL#10.

Does the R5F51405BGFL#10 support hardware encryption and random number generation?

Yes, the R5F51405BGFL#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 values. These are enabled by the "B" suffix in the part number and are fully operational across its –40 to +105°C temperature range, making the R5F51405BGFL#10 suitable for secure firmware updates and cryptographic key generation.

What package type and pin count does the R5F51405BGFL#10 use?

The R5F51405BGFL#10 uses the PLQP0064KB-C package: a 64-pin Low-Profile Quad Flat Package with 10 × 10 mm body size and 0.5 mm pitch. This RoHS-compliant, exposed-pad package supports reflow soldering and provides thermal and electrical performance suited for industrial and automotive applications where the R5F51405BGFL#10 is deployed.

How many analog-to-digital converter channels does the R5F51405BGFL#10 support, and what is its conversion speed?

The R5F51405BGFL#10 integrates a 12-bit S12ADE A/D converter with 11 external input channels and one internal channel (temperature sensor). At 48 MHz ADCLK, it achieves a minimum conversion time of 0.67 µs per channel. The R5F51405BGFL#10 also supports per-channel sampling time configuration, conversion result comparison, and analog input disconnection detection for robust sensor interfacing.

Is CAN bus communication supported on the R5F51405BGFL#10, and what standard does it comply with?

Yes, the R5F51405BGFL#10 includes a single-channel RSCAN CAN module compliant with ISO11898-1 for standard and extended frames, supporting data rates up to 1 Mbps. It features 16 mailboxes, programmable bit timing, and loopback/self-test modes. This CAN capability is retained in the R5F51405BGFL#10's 64-pin configuration and operates across its full –40 to +105°C temperature range.