Renesas R5F51308AGNE#20

Overview

R5F51308AGNE#20 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 (10 channels), two 8-bit D/A outputs, capacitive touch sensing (24 keys), RTC, and IEC60730-compliant safety functions - deployed in industrial control panels requiring low-power operation and embedded touch interfaces.

For engineers reviewing the R5F51308AGNE#20 datasheet, R5F51308AGNE#20 pinout, R5F51308AGNE#20 application, or R5F51308AGNE#20 equivalent, this page delivers verified package mapping (PWQN0048KB-A, 48-pin HWQFN), validated peripheral configuration (SCIg ×3, RIIC ×1, RSPI ×1, MTU2 ×6, CMT ×2), confirmed low-power modes (software standby: 0.37 µA, 4.8 µs wake-up), and real-world timing and interface constraints for rapid integration into temperature-stable, safety-certified designs.

Technical Context

The R5F51308AGNE#20 implements the RXv1 core with Harvard architecture, 5-stage pipeline, and variable-length instructions - enabling single-cycle 32×32 multiply and fast interrupt response. Its clock system integrates HOCO (32 MHz ±1%), sub-clock (32.768 kHz), PLL, and CAC for accuracy monitoring, with independent ICLK/PCLKB/FCLK domains synchronized at up to 32 MHz.

Peripheral coordination is managed via ELC (47 event sources) and DTC (4 transfer modes), allowing timer-triggered ADC conversions, PWM waveform generation with POE2-controlled high-impedance states, and background data flash operations (BGO). The MCU supports IEC60730 self-test features including RAM DOC, A/D disconnection detection, and IWDT oscillator validation.

Key Specifications

Pinout & Package

Packaged in PWQN0048KB-A: 48-pin HWQFN, 7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad. Pin count and function set align with RX130 Group 48-pin variant (Table 1.2), supporting 38 GPIO, 10 ADC inputs, 2 DAC outputs, 2 comparator inputs, 24 CTSU channels, and full SCIg/RIIC/RSPI signal routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51308AGNE#20, R5F51308ADNE#U0 trades thermal rating for lower cost without functional loss, while R5F51305AGNE#U0 reduces memory capacity to meet compact firmware needs - both retain identical pinout, peripheral set, and low-power behavior in the 48-pin HWQFN form factor.

Availability

R5F51308AGNE#20 is available at Aetrix Electronics and suitable for industrial control panels, appliance user interfaces, energy metering terminals, and medical diagnostic sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51308AGNE#20 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 RX130 Group - including R5F51308AGNE#20 - is engineered for cost-sensitive, safety-aware embedded applications demanding robust capacitive touch, precision analog, and IEC60730 compliance in compact packages.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51308AGNE#20?

The R5F51308AGNE#20 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance using the 32-bit RXv1 CPU core. Its architecture supports single-cycle 32×32 multiplication, 64-bit accumulator results, and fast interrupt handling - making it suitable for real-time control tasks in industrial and appliance applications where deterministic timing is critical.

Does the R5F51308AGNE#20 support IEC60730 Class B compliance out of the box?

Yes, the R5F51308AGNE#20 includes hardware-assisted IEC60730 Class B compliance features such as RAM test support via DOC, A/D converter self-diagnostic and analog input disconnection detection, independent watchdog timer (IWDT) with dedicated oscillator, and clock frequency accuracy measurement (CAC). These are documented in the device's safety manual and require proper initialization in firmware to activate.

What package type and pin count does the R5F51308AGNE#20 use?

The R5F51308AGNE#20 uses the PWQN0048KB-A package: a 48-pin HWQFN measuring 7 mm × 7 mm with 0.5 mm pitch and an exposed thermal pad. This package supports 38 general-purpose I/O pins, 10 ADC inputs, 2 DAC outputs, and full routing for SCIg ×3, RIIC ×1, and RSPI ×1 interfaces - matching the 48-pin variant specifications in Table 1.2 of the RX130 datasheet.

How many capacitive touch sensing channels does the R5F51308AGNE#20 support in its 48-pin package?

The R5F51308AGNE#20 supports 24 capacitive touch sensing (CTSU) channels in the 48-pin HWQFN package, as confirmed in Table 1.2 of the datasheet. These are implemented via TS0–TS23 pins and operate in mutual capacitance mode - enabling robust, moisture-resistant keypads for industrial HMIs and consumer appliances without requiring external touch controllers.

What are the low-power capabilities of the R5F51308AGNE#20, and how quickly can it wake from standby?

The R5F51308AGNE#20 offers three low-power modes, with software standby drawing just 0.37 µA while keeping the low-power timer (LPT) active. Wake-up from software standby takes only 4.8 µs - enabling ultra-low-duty-cycle operation for battery-powered sensors or intermittent UI polling, while maintaining responsiveness for time-critical events like touch detection or alarm triggers.