Renesas R5F51403AGFK#10

Overview

R5F51403AGFK#10 from Renesas is a 32-bit RXv2 core MCU operating at up to 48 MHz, featuring 64 KB flash, 16 KB SRAM, 4 KB data flash, 12-bit A/D converter (11 channels), two 8-bit D/A channels, CAN 2.0B interface, and capacitive touch sensing (32 keys). It targets low-power industrial control and consumer HMI applications requiring IEC60730 compliance and extended temperature operation.

For engineers reviewing the R5F51403AGFK#10 datasheet, R5F51403AGFK#10 pinout, R5F51403AGFK#10 application, or R5F51403AGFK#10 equivalent, key selection criteria include its −40°C to +105°C operating range, LQFP-64 (0.8 mm pitch) package, integrated AES/RNG encryption option (not enabled in this variant), real-time clock omission, and CAN module presence - all confirmed for this specific part number per Renesas R01DS0379EJ0120 Rev.1.20.

Technical Context

The R5F51403AGFK#10 implements the RXv2 CPU core with IEEE-754-compliant 32-bit FPU, 204 CoreMark score at 48 MHz, and on-chip divider completing in two cycles. Its memory subsystem includes no-wait-state SRAM and flash accessible at up to 48 MHz with one-wait-cycle access above 32 MHz.

Peripherals are orchestrated via Event Link Controller (ELC) enabling interrupt-free module triggering and linked operation during CPU sleep. Clock management supports multiple sources - HOCO (48 MHz ±1%), sub-clock (32.768 kHz), and PLL - with independent domain clocks (ICLK, PCLKB, FCLK) and CAC for accuracy monitoring.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51403AGFK#10, R5F51403ADFK#30 offers identical functionality at lower thermal rating, while R5F51405AGFK#30 provides scalable memory headroom - both retain CAN, CTSU, and IEC60730 features without PCB changes.

Availability

R5F51403AGFK#10 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.

Supply support for R5F51403AGFK#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 industrial, automotive, and enterprise markets.

The RX140 Group is designed for cost-sensitive, low-power embedded applications demanding functional safety (IEC60730), rich analog integration, and capacitive touch - targeting white goods, building automation, and entry-level automotive modules.

FAQ

What is the maximum operating frequency and core type of the R5F51403AGFK#10?

The R5F51403AGFK#10 features a 32-bit RXv2 CPU core with a maximum operating frequency of 48 MHz, achieving 204 CoreMark performance. Its HOCO delivers ±1% accuracy at 48 MHz, and the on-chip PLL supports flexible clock synthesis from 4–12 MHz inputs. This frequency is fully supported across its −40°C to +105°C operating range.

Does the R5F51403AGFK#10 include a real-time clock (RTC) module?

No, the R5F51403AGFK#10 does not include a real-time clock (RTCB) module. Per Table 1.2 in R01DS0379EJ0120 Rev.1.20, RTC is only available in 80-pin and certain 64-pin variants (e.g., R5F51406x) with ≥128 KB ROM. This part has 64 KB ROM and belongs to the "Products with 64-Kbyte ROM" group where RTC is explicitly marked "Not supported".

What is the capacitive touch sensing capability of the R5F51403AGFK#10?

The R5F51403AGFK#10 integrates CTSU2SL supporting up to 32 keys in self-capacitance mode. As confirmed in Table 1.2, this 64-pin LQFP variant with 64 KB ROM provides 32 CTSU channels - sufficient for touch sliders, keypads, or proximity wake-up in appliances and industrial panels without external ICs.

Is hardware encryption available on the R5F51403AGFK#10?

No, the R5F51403AGFK#10 is an "A"-variant part, meaning the AESA and RNGA encryption modules are not implemented. Per Table 1.3 and Figure 1.1, the "A" in the part number denotes "Encryption module not included." For AES-128/256 or true random number generation, select a "B"-variant such as R5F51403BGFK#30.

Which communication interfaces are supported by the R5F51403AGFK#10?

The R5F51403AGFK#10 supports 1× CAN 2.0B (1 Mbps), 3× SCIg (asynchronous/clock-sync/smart card), 1× SCIh (LIN-compliant), 1× RIIC (I2C/SMBus, 400 kbps), and 1× RSPI (SPI, 16 Mbps). It lacks the second SCI channel found in higher-ROM variants, and no RTC or USB is integrated - all confirmed in Table 1.2 of the official datasheet.