Renesas R5F51305AGNE#20

Overview

R5F51305AGNE#20 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 128 KB on-chip flash, 16 KB SRAM, 8 KB data flash, 12-bit A/D converter (17 channels), dual 8-bit D/A outputs, capacitive touch sensing (24 keys), and IEC60730-compliant safety functions for industrial control applications.

For engineers reviewing the R5F51305AGNE#20 datasheet, R5F51305AGNE#20 pinout, R5F51305AGNE#20 application, or R5F51305AGNE#20 equivalent, key selection criteria include its HWQFN-48 package with 0.5 mm pitch, –40°C to +105°C extended temperature rating, 1.8–5.5 V single-supply operation, and integrated event link controller (ELC) enabling low-power peripheral coordination without CPU wake-up.

Technical Context

The R5F51305AGNE#20 implements the RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling ultra-compact code and single-cycle 32×32-bit multiplication. It integrates a dedicated low-speed on-chip oscillator (15 kHz) for the independent watchdog timer (IWDT) and supports background operation (BGO) for data flash programming.

Its clock system includes a high-speed on-chip oscillator (32 MHz ±1%), PLL input range of 4–8 MHz, sub-clock oscillator (32.768 kHz), and clock frequency accuracy measurement circuit (CAC). The ELC allows direct inter-module triggering (e.g., MTU → A/D start), while the DTC supports normal, repeat, and block transfer modes activated by 47 event sources.

Key Specifications

Pinout & Package

Packaged in a 48-pin HWQFN (PWQN0048KB-A), 7 × 7 mm, 0.5 mm pitch, with exposed thermal pad for enhanced heat dissipation in compact industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51305ADNE#U0, the R5F51305AGNE#20 offers guaranteed operation up to +105°C for harsh environments; versus R5F51306BGNE#U0, it trades flash/SRAM capacity for lower cost and power in resource-constrained applications where 128 KB suffices.

Availability

R5F51305AGNE#20 is available at Aetrix Electronics and suitable for industrial motor control, smart appliance HMI, environmental sensor nodes, and HVAC system management requiring stable component supply across extended temperature ranges.

Supply support for R5F51305AGNE#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 automotive, industrial, and IoT markets.

The RX130 Group targets cost-sensitive, safety-aware industrial and consumer applications - delivering IEC60730 compliance, capacitive touch, and low-power operation in compact QFN packages.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51305AGNE#20?

The R5F51305AGNE#20 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RXv1 32-bit CPU core features a 5-stage pipeline, variable-length instructions, and single-cycle 32×32-bit multiplication - enabling deterministic real-time response in motor control and sensor processing tasks. This performance level is sustained across the full –40°C to +105°C operating range.

Does the R5F51305AGNE#20 support IEC60730 Class B compliance for household appliances?

Yes, the R5F51305AGNE#20 includes dedicated hardware features for IEC60730 Class B compliance, including RAM test assistance via the Data Operation Circuit (DOC), A/D converter self-diagnostic and analog input disconnection detection, clock frequency accuracy measurement (CAC), and independent watchdog timer (IWDT) with dedicated 15 kHz oscillator. These are documented in the R01DS0273EJ0300 datasheet sections covering safety support functions.

What package type and pin count does the R5F51305AGNE#20 use?

The R5F51305AGNE#20 uses a 48-pin HWQFN package (PWQN0048KB-A), measuring 7 × 7 mm with 0.5 mm pitch and an exposed thermal pad. This compact, thermally efficient package supports 24 capacitive touch sensing channels and is optimized for space-constrained industrial and consumer modules requiring extended temperature operation.

How many A/D and D/A channels does the R5F51305AGNE#20 integrate?

The R5F51305AGNE#20 integrates a 12-bit successive-approximation A/D converter with 17 input channels and two independent 8-bit D/A converter channels. The A/D supports per-channel sampling time configuration, conversion result comparison, and double-trigger mode for motor control; the D/A outputs provide 0 V to AVCC0 analog voltages usable for calibration references or analog feedback signals.

What communication interfaces are available on the R5F51305AGNE#20?

The R5F51305AGNE#20 provides up to seven Serial Communications Interface (SCI) channels (including LIN-capable SCIh), one I²C bus interface (RIICa) supporting up to 400 kbps and SMBus, one Serial Peripheral Interface (RSPIa) capable of 16 Mbps transfers, and one Remote Control Signal Receiver (REMC) with two units. All interfaces support event-linking via the ELC for autonomous operation during CPU sleep.