Renesas R5F51308ADFK#10

Overview

R5F51308ADFK#10 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 512 KB on-chip flash, 48 KB SRAM, 8 KB data flash, 12-bit A/D converter (17 channels), dual 8-bit D/A outputs, capacitive touch sensing (32 channels), and IEC60730 compliance for safety-critical industrial control applications.

For engineers reviewing the R5F51308ADFK#10 datasheet, R5F51308ADFK#10 pinout, R5F51308ADFK#10 application, or R5F51308ADFK#10 equivalent, key selection criteria include its LQFP-64 (0.8 mm pitch) package, –40°C to +85°C temperature grade, integrated RTC and low-power timer, and support for event-link controller (ELC)–driven peripheral coordination without CPU intervention.

Technical Context

The R5F51308ADFK#10 implements a CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiplication. Its clock system integrates high-speed on-chip oscillator (32 MHz ±1%), sub-clock (32.768 kHz), PLL, and dedicated IWDT oscillator (15 kHz), enabling precise real-time clock operation and independent watchdog timing.

Peripheral coordination is managed via Event Link Controller (ELC), supporting 47 event sources and linked module operation during CPU sleep. The Data Transfer Controller (DTC) provides four transfer modes with chain capability, while Multi-function Pin Controller (MPC) enables flexible I/O function assignment across 52 GPIOs in its 64-pin LQFP package.

Key Specifications

Pinout & Package

Package: PLQP0064GA-A - 64-pin LQFP, 14 × 14 mm, 0.8 mm pitch, lead-free, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51308ADFK#10, R5F51308ADFM#30 requires PCB layout change due to 0.5 mm pitch, while R5F51307ADFK#30 offers identical mechanical fit but 128 KB less flash-enabling cost reduction without altering hardware design or firmware porting effort.

Availability

R5F51308ADFK#10 is available at Aetrix Electronics and suitable for industrial automation controllers, home appliance mainboards, and medical device front-ends requiring stable component supply, long-term lifecycle support, and IEC60730-certifiable silicon.

Supply support for R5F51308ADFK#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 RX130 Group targets cost-sensitive, safety-aware embedded applications requiring rich analog integration, low-power operation, and functional safety certification-designed specifically for appliances, industrial HMI, and portable medical devices.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51308ADFK#10?

The R5F51308ADFK#10 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its 32-bit RX CPU core features a 5-stage pipeline, variable-length instruction set, and 64-bit accumulator for efficient arithmetic. This performance level is sustained across the full 1.8 V to 5.5 V supply range, with clock accuracy maintained by the on-chip high-speed oscillator (32 MHz ±1%).

Does the R5F51308ADFK#10 support IEC60730 Class B compliance out of the box?

Yes, the R5F51308ADFK#10 includes hardware-assisted self-test features required for IEC60730 Class B certification, including A/D converter diagnostics, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT) validation, RAM test support via Data Operation Circuit (DOC), and analog input disconnection detection. These are implemented in silicon and documented in Renesas' safety manual R01UL0079EJ0200.

How many capacitive touch channels does the R5F51308ADFK#10 support, and what package constraint applies?

The R5F51308ADFK#10 supports 32 capacitive touch sensing channels, as specified for the 64-pin LQFP (PLQP0064GA-A) package variant. This is fewer than the 36 channels available in 100-pin or 80-pin RX130 variants, due to pin count limitations. All 32 TSx pins are mapped to dedicated CTSU I/O functions in this package, enabling robust mutual- or self-capacitance touch implementations.

What are the memory resources allocated to the R5F51308ADFK#10?

The R5F51308ADFK#10 integrates 512 KB of on-chip flash memory (with zero wait states at 32 MHz), 48 KB of SRAM (also zero wait states), and 8 KB of data flash rated for 1,000,000 program/erase cycles. The data flash supports background operation (BGO), allowing concurrent code execution and non-volatile parameter storage updates without halting the CPU.

Which communication interfaces are available on the R5F51308ADFK#10, and how many instances does each have?

The R5F51308ADFK#10 provides six SCIg channels (SCI0, SCI1, SCI5, SCI6, SCI8, SCI9), one SCIh channel (SCI12), one I²C bus interface (RIIC0), one RSPI channel, and one remote control signal receiver (REMC) with two units. It does not include the REMC peripheral in this 64-pin LQFP variant per Table 1.2 - confirming only SCI, I²C, and RSPI are fully available for communication tasks.