Renesas R5F51405BGFK#30

Overview

R5F51405BGFK#30 from Renesas is a 32-bit RXv2 core MCU operating at up to 48 MHz, featuring 128 KB flash, 32 KB SRAM, 8 KB data flash, on-chip FPU, 12-bit A/D converter (15 channels), two 8-bit D/A channels, CAN interface (ISO 11898-1, 1 Mbps), and capacitive touch sensing (32 keys). It targets low-power industrial control and consumer HMI applications requiring IEC60730 compliance.

For engineers reviewing the R5F51405BGFK#30 datasheet, R5F51405BGFK#30 pinout, R5F51405BGFK#30 application, or R5F51405BGFK#30 equivalent, key selection factors include its LQFP-64 package with 0.8 mm pitch, –40°C to +105°C temperature grade, integrated AES/RNG encryption, and real-time clock support - all confirmed for this exact variant in Renesas documentation.

Technical Context

The R5F51405BGFK#30 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions, delivering 204 CoreMark at 48 MHz. Its on-chip peripherals include a 16-bit MTU2 timer unit (6 channels), ELC for event-driven module coordination without CPU wake-up, and CTSU2SL supporting self-capacitance touch up to 32 keys.

It integrates dual-clock domain operation: ICLK up to 48 MHz for CPU/system, PCLKB up to 32 MHz for peripherals, and FCLK at 48 MHz for FlashIF. The device supports four low-power modes, including software standby with 0.25 µA typical current and 6.2 µs wake-up time using HOCO 32 MHz.

Key Specifications

Pinout & Package

Package: PLQP0064GA-A - 64-pin LQFP, 14 × 14 mm body, 0.8 mm pitch, exposed pad not specified, RoHS-compliant lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51405ADFK#30, the R5F51405BGFK#30 adds hardware AES/RNG and extends temperature range to +105°C - critical for under-hood or enclosed thermal environments. Against R5F51406BGFK#30, it trades flash/RAM capacity for lower BOM cost while retaining identical security, timing, and interface capabilities.

Availability

R5F51405BGFK#30 is available at Aetrix Electronics and suitable for industrial motor control, smart appliance HMI, automotive body electronics, and energy monitoring gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51405BGFK#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 industrial, automotive, and IoT markets.

The RX140 Group - including the R5F51405BGFK#30 - is engineered for cost-optimized, low-power embedded control with integrated touch, safety, and communication features targeting industrial automation and white goods.

FAQ

What is the maximum operating frequency and core type of the R5F51405BGFK#30?

The R5F51405BGFK#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 frequency is sustained across the full –40°C to +105°C operating range, validated by Renesas in the R01DS0379EJ0120 datasheet.

Does the R5F51405BGFK#30 include hardware encryption acceleration?

Yes, the R5F51405BGFK#30 integrates the AESA hardware accelerator supporting AES-128 and AES-256 encryption in ECB, CBC, and CTR modes, plus the RNGA true random number generator. These modules are enabled in this variant (indicated by "B" in the part number) and operate independently of the CPU, reducing latency for secure boot and OTA update signing. Documentation confirms full FIPS PUB 197 compliance.

What package type and pin count does the R5F51405BGFK#30 use?

The R5F51405BGFK#30 uses the PLQP0064GA-A package: a 64-pin LQFP with 14 × 14 mm body size and 0.8 mm pin pitch. This package is distinct from the 0.5 mm pitch LFQFP variants (e.g., PLQP0064KB-C) and supports 5-V tolerant I/O, open-drain outputs, and internal pull-ups. Pin compatibility is confirmed in Table 1.2 of the R01DS0379EJ0120 datasheet.

How many A/D converter channels does the R5F51405BGFK#30 support?

The R5F51405BGFK#30 includes the S12ADE 12-bit A/D converter with 15 external input channels and one internal temperature sensor channel. This count is specific to the 64-pin LQFP package (PLQP0064GA-A) and differs from higher-pin-count variants offering up to 18 channels. Conversion time is 0.67 µs at 48 MHz ADCLK, and per-channel sampling time is programmable.

Is CAN interface support included in the R5F51405BGFK#30?

Yes, the R5F51405BGFK#30 integrates the RSCAN CAN module compliant with ISO 11898-1, supporting standard and extended frames at up to 1 Mbps. It provides 16 mailboxes and operates independently of the CPU via the ELC. CAN functionality is present in all RX140 Group members with ≥64 pins, including this LQFP-64 variant, and requires an external CAN transceiver for physical layer interfacing.