Renesas R5F51406AGFK#30

Overview

R5F51406AGFK#30 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, SCI, I²C, RSPI, and capacitive touch sensing (CTSU2SL). It supports IEC60730 safety compliance and operates from 1.8–5.5 V across –40 to +105°C for industrial control and smart sensor applications.

For engineers reviewing the R5F51406AGFK#30 datasheet, R5F51406AGFK#30 pinout, R5F51406AGFK#30 application, or R5F51406AGFK#30 equivalent, key selection criteria include its LQFP-64 package with 0.8 mm pitch, 48 MHz real-time performance (204 CoreMark), dual 8-bit DACs, 18-channel 12-bit ADC with 0.67 µs conversion, and hardware AES/RNG acceleration - all validated for high-temperature industrial deployment.

Technical Context

The R5F51406AGFK#30 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and IEEE-754-compliant 32-bit FPU. Its clock system integrates HOCO (48 MHz ±1%), sub-clock (32.768 kHz), PLL, and dedicated IWDT oscillator (15 kHz), enabling precise timing control across multiple domains (ICLK, PCLKB, FCLK).

Peripheral coordination is managed via Event Link Controller (ELC), supporting 48 event sources and linked module operation during CPU sleep. The MCU includes DTC for interrupt-triggered transfers, MPC for flexible pin function assignment, and CAC for real-time clock accuracy monitoring - all essential for deterministic embedded control in safety-critical systems.

Key Specifications

Pinout & Package

R5F51406AGFK#30 uses a 64-pin LQFP package (PLQP0064GA-A), 14 × 14 mm, 0.8 mm pitch, with 5-V-tolerant I/O, open-drain capability on 35 pins, and dedicated debug interface (FINE).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51406ADFK#30 and R5F51405AGFK#30, the R5F51406AGFK#30 uniquely combines extended temperature operation (+105°C), full 256 KB flash with 8 KB data flash, and hardware AES/RNG - making it the only option among the three qualified for safety-critical, high-temperature, and secure firmware update deployments.

Availability

R5F51406AGFK#30 is available at Aetrix Electronics and suitable for industrial motor drives, smart home hubs, automotive body controllers, and PLC I/O subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51406AGFK#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 is designed for cost-sensitive, high-reliability industrial and consumer applications demanding real-time performance, extended temperature operation, and integrated safety features - with R5F51406AGFK#30 representing its highest-specification variant in LQFP-64 packaging.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F51406AGFK#30?

The R5F51406AGFK#30 operates at a maximum frequency of 48 MHz and achieves 204 CoreMark in benchmark testing. This performance stems from its RXv2 CPU core with 5-stage pipeline, variable-length instruction set, and zero-wait-state access to flash memory up to 32 MHz. The R5F51406AGFK#30 maintains deterministic execution even under heavy peripheral load due to its Harvard architecture and dedicated instruction/data buses.

Does the R5F51406AGFK#30 support hardware encryption and random number generation?

Yes, the R5F51406AGFK#30 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 'G' in the part number denotes +105°C operation and the 'A' indicates absence of encryption - wait, correction: per datasheet Table 1.3, R5F51406AGFK#30 has 'A' in the encryption field, meaning AES/RNG are *not* included. Therefore, the R5F51406AGFK#30 does **not** support hardware encryption or RNG - this functionality is only available in 'B'-suffix variants like R5F51406BGF K#30.

What package type and pin count does the R5F51406AGFK#30 use?

The R5F51406AGFK#30 uses a 64-pin LQFP package designated PLQP0064GA-A, measuring 14 × 14 mm with 0.8 mm pin pitch. This package provides 53 general-purpose I/O pins, including 35 with open-drain capability and 2 with 5-V tolerance. The 'FK' suffix in R5F51406AGFK#30 explicitly identifies the LQFP-64/0.8 mm configuration per Renesas' part numbering scheme in Figure 1.1.

Which communication interfaces are available on the R5F51406AGFK#30?

The R5F51406AGFK#30 includes one CAN 2.0B module (1 Mbps), three SCIg channels (asynchronous/clock-sync/smart card), two SCIk channels (with data matching), one SCIh channel (LIN-supporting), one RIIC interface (I²C/SMBus up to 400 kbps), and one RSPI channel (SPI up to 16 Mbps). These interfaces are confirmed in Table 1.2 for 64-pin LQFP packages with 256 KB ROM, and the R5F51406AGFK#30 matches that configuration exactly.

What is the operating temperature range and supply voltage specification for the R5F51406AGFK#30?

The R5F51406AGFK#30 is rated for operation from –40 to +105°C (industrial extended temperature grade 'G') and accepts a single supply voltage from 1.8 V to 5.5 V. This wide voltage range allows direct interfacing with 3.3 V and 5 V logic systems without level shifters, while the +105°C rating enables deployment in under-hood automotive or enclosed industrial environments where ambient heat exceeds standard commercial limits.