Renesas R5F51105ADFK#30

Overview

R5F51105ADFK#30 from Renesas is a 32-bit RX CPU core microcontroller operating at up to 32 MHz (50 DMIPS), featuring 128 Kbytes of on-chip flash memory, 16 Kbytes of SRAM, and integrated peripherals including a 12-bit A/D converter with 14 channels, RTC, dual SCI interfaces, I²C, RSPI, MTU2 timers, and independent watchdog timer. It targets low-power industrial sensor nodes and embedded control systems requiring deterministic real-time response.

For engineers reviewing the R5F51105ADFK#30 datasheet, R5F51105ADFK#30 pinout, R5F51105ADFK#30 application, or R5F51105ADFK#30 equivalent, key selection criteria include its −40 to +85°C temperature grade, PLQP0064GA-A 64-pin LQFP package (14 × 14 mm, 0.8 mm pitch), 1.8–3.6 V supply range, software standby mode (0.35 μA), and IEC 60730-compliant safety features.

Technical Context

The R5F51105ADFK#30 implements a CISC Harvard architecture with five-stage pipeline and variable-length instructions, enabling ultra-compact code and single-cycle instruction execution. Its clock system integrates high-speed (32 MHz ±1%), sub-clock (32.768 kHz), and IWDT-dedicated (15 kHz) oscillators, with programmable division for ICLK, PCLK, and FCLK domains.

Peripheral integration includes a Data Transfer Controller (DTC) supporting normal, repeat, and block transfer modes triggered by 65 interrupt vectors; MTU2 unit with four 16-bit channels supporting input capture, PWM, phase counting, and A/D trigger generation; and RIIC interface compliant with I²C fast mode (400 kbps) and SMBus protocols.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51105ADFK#30, the ADFM#30 offers identical functionality in a smaller 10 mm × 10 mm LQFP, while the AGFK#30 maintains mechanical compatibility but adds 20°C thermal headroom-enabling deployment in higher-temperature environments without derating or heatsinking.

Availability

R5F51105ADFK#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, programmable logic relays, and energy metering subsystems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F51105ADFK#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 automotive, industrial, and IoT markets.

The RX110 Group, including R5F51105ADFK#30, is designed for cost-sensitive, low-power embedded control applications demanding real-time performance, functional safety compliance, and rich analog/peripheral integration in compact packages.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51105ADFK#30?

The R5F51105ADFK#30 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. This is achieved through its 32-bit RX CPU core with five-stage pipeline, single-cycle instruction execution, and 64-bit accumulator for 32×32-bit operations. The R5F51105ADFK#30 sustains this performance across its full 1.8–3.6 V supply range without wait states in flash or SRAM access.

Does the R5F51105ADFK#30 support IEC 60730 functional safety compliance?

Yes, the R5F51105ADFK#30 includes on-chip functions specifically designed for IEC 60730 Class B compliance, including a clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated 15 kHz oscillator, RAM test assist functions, and voltage monitoring circuits. These features enable developers to implement self-test routines and fault detection mechanisms required for household appliance and industrial control certification.

What package type and pin count does the R5F51105ADFK#30 use?

The R5F51105ADFK#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 variants (e.g., PLQP0064KB-A) and provides robust mechanical handling and standard surface-mount assembly compatibility. The R5F51105ADFK#30 exposes 50 general-purpose I/O pins plus dedicated power, clock, reset, and debug signals.

How many A/D converter channels and what resolution does the R5F51105ADFK#30 provide?

The R5F51105ADFK#30 integrates a 12-bit successive-approximation A/D converter with up to 14 input channels (AN000–AN015). Its minimum conversion time is 1.0 μs per channel when the ADCLK runs at 32 MHz, enabling high-speed sampling for motor control or sensor fusion. The R5F51105ADFK#30 also supports double-trigger mode to duplicate conversion data across two channels for redundancy and noise rejection.

What communication interfaces are integrated into the R5F51105ADFK#30?

The R5F51105ADFK#30 integrates three SCI channels (SCI1, SCI5, SCI12) supporting asynchronous, clock-synchronous, and smart card modes; one I²C bus interface (RIIC) compliant with 400 kbps fast mode and SMBus; and one RSPI interface supporting master/slave operation at up to 16 Mbps. All interfaces feature configurable data lengths (8–32 bits), LSB/MSB-first selection, and hardware flow control where applicable.