Renesas R5F51135ADFM#30

Overview

R5F51135ADFM#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, 32 KB SRAM, and 8 KB data flash. It integrates a 12-bit A/D converter (17 channels), 12-bit D/A converter (2 channels), USB 2.0 full-speed host/function/OTG, LCD controller/driver (40×4 segment), and capacitive touch sensing unit - deployed in industrial HMI and portable medical devices requiring low-power operation and integrated analog peripherals.

For engineers reviewing the R5F51135ADFM#30 datasheet, R5F51135ADFM#30 pinout, R5F51135ADFM#30 application, or R5F51135ADFM#30 equivalent, this MCU delivers verified USB OTG support, sub-5 µs wake-up from software standby mode, 1.0 µs A/D conversion time, and IEC 60730-compliant safety features for Class B appliance control and embedded diagnostics.

Technical Context

The R5F51135ADFM#30 implements a CISC Harvard architecture with five-stage pipeline and variable-length instructions, enabling ultra-compact code and single-cycle instruction execution. Its clock system includes independent PLL, USB-dedicated PLL, and IWDT-dedicated 15 kHz oscillator, with programmable system (ICLK), peripheral (PCLK), and FlashIF (FCLK) clocks all configurable up to 32 MHz.

Peripheral coordination is managed via Event Link Controller (ELC), allowing direct module-to-module triggering without CPU intervention - critical for deterministic motor control and real-time sensor fusion. The Data Transfer Controller (DTC) supports chain transfer across four modes, synchronized to 44 event sources including MTU2 timers and A/D conversion triggers.

Key Specifications

Pinout & Package

Package: PLQP0064KB-A - 64-pin LFQFP, 10 × 10 mm, 0.5 mm pitch, exposed pad (thermal enhancement).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51135ADFM#3A, R5F51135ADFP#3A expands I/O and analog interface count but requires PCB redesign, while R5F51136ADFM#3A provides immediate flash headroom within identical mechanical and electrical constraints - making it the optimal drop-in upgrade path.

Availability

R5F51135ADFM#30 is available at Aetrix Electronics and suitable for industrial HMI, portable medical monitors, smart appliance control, and USB-C enabled industrial tools requiring stable component supply and long-term production continuity.

Supply support for R5F51135ADFM#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.

The RX113 Group targets cost-sensitive, low-power embedded applications demanding rich analog integration, USB connectivity, and functional safety - designed specifically for appliance control, HMI, and portable instrumentation.

FAQ

What is the maximum operating frequency and performance rating of the R5F51135ADFM#30?

The R5F51135ADFM#30 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS (Dhrystone MIPS) performance. This is achieved through its 32-bit RX CPU core with five-stage pipeline, single-cycle instruction execution, and 32-bit × 32-bit multiplication unit. The R5F51135ADFM#30 maintains full performance across its 1.8–3.6 V supply range, with frequency scaling tied to VCC voltage levels per datasheet Table 1.1.

Does the R5F51135ADFM#30 support USB On-The-Go (OTG) functionality?

Yes, the R5F51135ADFM#30 includes a fully integrated USB 2.0 host/function/OTG module compliant with USB specification 2.0. It supports full-speed (12 Mbps) and low-speed (1.5 Mbps) modes, isochronous transfers, and Battery Charging (BC) detection. The R5F51135ADFM#30 uses dedicated USB DP/DM pins and internal transceiver, requiring no external PHY. OTG operation is enabled via USB0_ID pin detection and controlled by the USBc peripheral registers.

What are the key low-power capabilities of the R5F51135ADFM#30?

The R5F51135ADFM#30 offers three low-power consumption modes: sleep, deep sleep, and software standby. In software standby mode, it draws just 0.44 µA while retaining SRAM and register contents, with a 4.8 µs wake-up time. It also includes a low-power timer (LPT) that runs during standby using the 32.768 kHz sub-clock. The R5F51135ADFM#30 achieves 0.11 mA/MHz in high-speed operating mode, optimized for energy-efficient real-time processing.

How many analog-to-digital and digital-to-analog converter channels does the R5F51135ADFM#30 include?

The R5F51135ADFM#30 integrates one 12-bit A/D converter with up to 17 input channels (AN000–AN015, AN021), capable of 1.0 µs minimum conversion time at 32 MHz ADCLK. It also includes two 12-bit D/A converter channels (DA0, DA1), each providing rail-to-rail analog output in the range of 0.35 V to AVCC – 0.47 V. These converters share reference voltage pins (VREFH0/VREFL0 for A/D; VREFH/VREFL for D/A), supporting flexible analog signal conditioning in the R5F51135ADFM#30.

Is the R5F51135ADFM#30 qualified for functional safety standards like IEC 60730?

Yes, the R5F51135ADFM#30 includes on-chip hardware features required for IEC 60730 Class B compliance: Clock Frequency Accuracy Measurement Circuit (CAC), Independent Watchdog Timer (IWDT) with dedicated 15 kHz oscillator, RAM test assist functions, and voltage monitoring circuits (LVDA). These are documented in the R5F51135ADFM#30 datasheet Section "On-chip functions for IEC 60730 compliance" and enable certified appliance control without external safety monitors.