Renesas R5F51308AGFN#50

Overview

R5F51308AGFN#50 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 (36 channels), RTC, and IEC60730 compliance - deployed in industrial human-machine interfaces and appliance control systems.

For engineers reviewing the R5F51308AGFN#50 datasheet, R5F51308AGFN#50 pinout, R5F51308AGFN#50 application, or R5F51308AGFN#50 equivalent, key selection criteria include its 80-pin LFQFP package, –40°C to +105°C extended temperature rating, integrated CTSU for touch panels, low-power software standby mode (0.37 µA), and ELC-driven event-linked peripheral operation without CPU wake-up.

Technical Context

The R5F51308AGFN#50 implements a CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiply-accumulate operations. Its clock system integrates HOCO (32 MHz ±1%), sub-clock (32.768 kHz), PLL, and dedicated IWDT oscillator (15 kHz).

Peripheral coordination is managed via Event Link Controller (ELC), enabling direct module-to-module triggering (e.g., MTU → A/D start) during CPU sleep. The Data Transfer Controller (DTC) supports normal, repeat, and block transfer modes activated by 115 interrupt vectors, including 9 external IRQs and 5 NMI sources.

Key Specifications

Pinout & Package

Package: PLQP0080KB-B - 80-pin Low-Profile Quad Flat Package, 12 × 12 mm body, 0.5 mm pitch, exposed pad for thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51308ADFN#30, the R5F51308AGFN#50 adds extended temperature support critical for harsh environments; versus R5F51306BGFN#30, it delivers full feature parity including dual D/A and CTSU - making it optimal for integrated touch-and-control designs.

Availability

R5F51308AGFN#50 is available at Aetrix Electronics and suitable for industrial HMI terminals, smart appliance control panels, and motorized valve controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51308AGFN#50 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 demanding rich analog integration, capacitive touch, and IEC60730 compliance - optimized for appliances, building automation, and industrial HMIs.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51308AGFN#50?

The R5F51308AGFN#50 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RX CPU core features a 5-stage pipeline, variable-length instructions, and a 64-bit accumulator capable of single-cycle 32×32 multiply-accumulate operations. This performance level supports real-time control loops, sensor fusion, and responsive GUI rendering in resource-constrained embedded systems using the R5F51308AGFN#50.

Does the R5F51308AGFN#50 support capacitive touch sensing, and how many channels are available?

Yes, the R5F51308AGFN#50 integrates a Capacitive Touch Sensing Unit (CTSU) supporting up to 36 channels. In self-capacitance mode, it enables 36 individual touch keys; in mutual-capacitance matrix mode, it supports up to 324 keys using 36 pins. The hardware-accelerated CTSU includes noise cancellation and automatic drift compensation - essential for reliable operation in noisy industrial environments using the R5F51308AGFN#50.

What are the memory resources available on the R5F51308AGFN#50?

The R5F51308AGFN#50 includes 512 KB of on-chip flash memory (no wait states at 32 MHz), 48 KB of SRAM, and 8 KB of data flash rated for 1,000,000 program/erase cycles. The data flash supports Background Operation (BGO), allowing firmware updates or parameter storage while the CPU executes application code - a key capability for field-upgradable devices built around the R5F51308AGFN#50.

What low-power modes does the R5F51308AGFN#50 support, and what is the lowest current consumption?

The R5F51308AGFN#50 supports three low-power modes: Sleep, Deep Sleep, and Software Standby. In Software Standby mode, it consumes just 0.37 µA while maintaining RTC and LPT operation - enabling decade-long battery life in maintenance-free sensor nodes. Wake-up latency from this mode is 4.8 µs, ensuring rapid response to external events without sacrificing energy efficiency in designs using the R5F51308AGFN#50.

Is the R5F51308AGFN#50 qualified for industrial temperature operation, and what is its range?

Yes, the R5F51308AGFN#50 is qualified for industrial temperature operation from –40°C to +105°C (G-grade). This extended range makes it suitable for under-hood automotive modules, factory-floor HMIs, and outdoor-rated equipment where ambient temperatures exceed standard commercial limits. The device maintains full specification compliance across this range, including flash programming at 1.8 V and stable A/D conversion performance - critical for robust deployment of the R5F51308AGFN#50.