Renesas R5F51305AGFM#30

Overview

R5F51305AGFM#30 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), two 8-bit D/A outputs, capacitive touch sensing (32 channels), and IEC60730-compliant safety functions - deployed in industrial human-machine interfaces and consumer appliance control systems.

For engineers reviewing the R5F51305AGFM#30 datasheet, R5F51305AGFM#30 pinout, R5F51305AGFM#30 application, or R5F51305AGFM#30 equivalent, key selection criteria include its 64-pin LFQFP (PLQP0064KB-C) package, –40°C to +105°C extended temperature rating, integrated RTC and low-power timer, and support for event-link controller (ELC)–driven peripheral coordination without CPU intervention.

Technical Context

The R5F51305AGFM#30 implements the RXv1 core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It integrates a dedicated clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) driven by a 15-kHz on-chip oscillator, and real-time clock (RTC) with calendar/binary count modes.

Its peripheral subsystem includes ELC-triggered operation of MTU2 timers and A/D conversion, DTC with chain transfer capability, and multi-function pin controller (MPC) enabling flexible I/O assignment across 52 general-purpose pins. The MCU supports three low-power modes - sleep, deep sleep, and software standby - with 0.37 µA standby current and 4.8 µs wake-up time.

Key Specifications

Pinout & Package

Package: PLQP0064KB-C - 64-pin Low-Profile Quad Flat Package, 10 mm × 10 mm, 0.5 mm pitch, exposed pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51305ADFM#30, the R5F51305AGFM#30 provides guaranteed operation up to +105°C - critical for sealed enclosures - while R5F51306BGFM#30 offers scalable memory headroom without changing pinout or peripheral configuration.

Availability

R5F51305AGFM#30 is available at Aetrix Electronics and suitable for industrial HMI terminals, smart home appliance controllers, and white goods motor interface modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51305AGFM#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 RX130 Group - including R5F51305AGFM#30 - was designed for cost-sensitive, safety-aware embedded applications demanding robust capacitive touch, low-power operation, and IEC60730 compliance in compact packages.

FAQ

What is the maximum operating frequency of the R5F51305AGFM#30 and what supply voltage is required?

The R5F51305AGFM#30 operates at a maximum frequency of 32 MHz, which requires a VCC supply of 2.7 V to 5.5 V. At 2.4–2.7 V, max frequency is 16 MHz; at 1.8–2.4 V, it is limited to 8 MHz. This voltage-frequency scaling ensures stable operation across diverse power rail conditions while maintaining 50 DMIPS performance at full speed. The R5F51305AGFM#30's internal PLL and clock dividers allow flexible system clock derivation from multiple sources including HOCO, sub-clock, or external crystals.

Does the R5F51305AGFM#30 support capacitive touch sensing, and how many channels are available in its 64-pin package?

Yes, the R5F51305AGFM#30 integrates a Capacitive Touch Sensing Unit (CTSUa) supporting up to 32 dedicated touch channels in the PLQP0064KB-C package. These are mapped to TS0–TS31 pins and support both self-capacitance (32 independent keys) and mutual-capacitance (matrix) configurations. The R5F51305AGFM#30's CTSU includes hardware-accelerated noise rejection and automatic calibration, eliminating need for external touch controllers in most appliance HMI designs.

What safety features does the R5F51305AGFM#30 provide for IEC60730 compliance?

The R5F51305AGFM#30 includes hardware-assisted IEC60730 Class B compliance features: A/D converter self-diagnostic and analog input disconnection detection, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated 15-kHz oscillator, RAM test support via Data Operation Circuit (DOC), and voltage monitoring with configurable LVD levels. These features are implemented in silicon and documented in Renesas' functional safety manual, enabling certified firmware implementations without external supervision circuits. The R5F51305AGFM#30 is explicitly validated for these functions in its G-grade industrial temperature range.

Can the R5F51305AGFM#30 operate in low-power modes, and what is its lowest supply current?

Yes, the R5F51305AGFM#30 supports three low-power modes: sleep, deep sleep, and software standby. In software standby mode - where only the low-power timer (LPT) and sub-clock remain active - supply current drops to 0.37 µA (typical). Wake-up occurs in 4.8 µs via LPT match, external interrupt, or RTC alarm. This enables battery-backed operation for months in energy-harvesting or maintenance-free applications. The R5F51305AGFM#30's power management unit allows fine-grained peripheral gating and voltage scaling to further optimize consumption across operating modes.

What communication interfaces are integrated into the R5F51305AGFM#30, and how many SCI channels are usable in the 64-pin variant?

The R5F51305AGFM#30 integrates SCIg (6 channels), SCIh (1 channel), I2C bus interface (1 channel), RSPI (1 channel), and remote control signal receiver (2 channels). In the 64-pin PLQP0064KB-C package, three SCIg channels (SCI1, SCI5, SCI6) and one SCIh channel (SCI12) are available - totaling four functional serial interfaces. Each supports asynchronous, clock-synchronous, I2C, SPI, and LIN modes. The R5F51305AGFM#30's Event Link Controller (ELC) allows SCI transmission/reception to be triggered directly by timers or A/D completion, reducing CPU overhead in protocol-heavy applications.