Renesas R5F51307ADFN#30

Overview

R5F51307ADFN#30 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 384 KB on-chip flash, 48 KB SRAM, 8 KB data flash, 12-bit A/D converter (17 channels), two 8-bit D/A outputs, capacitive touch sensing (36 channels), and IEC60730-compliant safety functions - deployed in industrial HMI and consumer appliance control systems.

For engineers reviewing the R5F51307ADFN#30 datasheet, R5F51307ADFN#30 pinout, R5F51307ADFN#30 application, or R5F51307ADFN#30 equivalent, key selection criteria include its 80-pin LFQFP package, 1.8–5.5 V single-supply operation, software standby current of 0.37 µA, 4.8 µs wake-up time, and integrated ELC/DTC for low-power event-driven execution without CPU intervention.

Technical Context

The R5F51307ADFN#30 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 high-speed (32 MHz ±1%) and low-speed (15 kHz) on-chip oscillators, PLL, sub-clock (32.768 kHz), and CAC for real-time frequency accuracy monitoring.

Peripheral coordination is managed via Event Link Controller (ELC), enabling direct module-to-module triggering (e.g., MTU → A/D start) while CPU remains in deep sleep; Data Transfer Controller (DTC) supports chain transfer across four modes with interrupt-source activation and background operation during flash programming.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51307AGFN#30, the R5F51307ADFN#30 offers identical feature set at lower temperature grade; versus R5F51306BDFN#30, it adds RTC and REMC while increasing flash/SRAM - making it optimal for full-featured HMI and time-aware embedded systems.

Availability

R5F51307ADFN#30 is available at Aetrix Electronics and suitable for industrial HMI, home appliance control, and medical device frontend applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F51307ADFN#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 industrial, automotive, and IoT markets.

The RX130 Group targets cost-sensitive, low-power embedded applications demanding rich analog integration, capacitive touch, functional safety, and seamless connectivity - designed specifically for appliance HMI, sensor nodes, and portable medical devices.

FAQ

What is the maximum operating frequency and associated performance of the R5F51307ADFN#30?

The R5F51307ADFN#30 operates at a maximum frequency of 32 MHz, delivering 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 DSP-like operations. This performance level supports real-time control loops, capacitive touch scanning, and multi-protocol communication stacks without external acceleration.

Does the R5F51307ADFN#30 support capacitive touch sensing, and how many keys can it handle?

Yes, the R5F51307ADFN#30 integrates a dedicated Capacitive Touch Sensing Unit (CTSU) supporting up to 36 self-capacitance keys or 324 mutual-capacitance keys in matrix configuration. It includes hardware noise cancellation and automatic calibration, enabling robust touch interfaces in appliances and medical devices without external touch controllers - all managed by the R5F51307ADFN#30's on-chip firmware.

What low-power capabilities does the R5F51307ADFN#30 offer for battery-operated applications?

The R5F51307ADFN#30 delivers ultra-low-power operation with 0.37 µA current draw in software standby mode and 4.8 µs wake-up time to full 32 MHz operation. Its Low Power Timer (LPT) runs independently from the sub-clock or IWDT oscillator, enabling periodic wake-up intervals from 32 ms to over 2 seconds. These features make the R5F51307ADFN#30 ideal for energy-constrained designs such as portable medical monitors and wireless sensor nodes.

How does the R5F51307ADFN#30 support functional safety compliance for IEC60730?

The R5F51307ADFN#30 includes hardware-assisted self-test functions for the A/D converter, independent watchdog timer (IWDT), clock frequency accuracy measurement circuit (CAC), RAM, and analog input disconnection detection. These features reduce software validation burden and external component count, enabling Class B compliance for household appliances - a core design objective validated in the R5F51307ADFN#30's safety documentation.

What communication interfaces are integrated into the R5F51307ADFN#30?

The R5F51307ADFN#30 integrates six SCI channels (SCIg), one enhanced SCI (SCIh), one I²C bus interface (RIIC), one Serial Peripheral Interface (RSPI), and two Remote Control Signal Receivers (REMC). These support UART, LIN, SPI, I²C, SMBus, smart card, and IR remote protocols - enabling flexible connectivity to displays, sensors, gateways, and legacy control systems within a single R5F51307ADFN#30-based design.