Renesas R5F51136AGFM#3A

Overview

R5F51136AGFM#3A from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 256 KB on-chip flash, 32 KB SRAM, and 8 KB data flash. It integrates USB 2.0 full-speed host/function/OTG, 12-bit A/D (17 channels), 12-bit D/A (2 channels), RTC, LCD controller (40×4), CTSU (capacitive touch), and operates from 1.8–3.6 V across –40 to +105°C.

For engineers reviewing the R5F51136AGFM#3A datasheet, R5F51136AGFM#3A pinout, R5F51136AGFM#3A application, or R5F51136AGFM#3A equivalent, this MCU targets embedded control in industrial HMI, portable medical devices, and USB-connected sensor nodes where low-power operation, integrated analog peripherals, and robust timing are critical.

Technical Context

The R5F51136AGFM#3A implements a CISC Harvard-architecture RX core with five-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiply-accumulate. Its clock system includes high-speed on-chip oscillator (32 MHz ±1%), PLL, sub-clock (32.768 kHz), and dedicated IWDT/USB oscillators.

Peripheral integration centers on event-driven autonomy: the Event Link Controller (ELC) enables direct module-to-module triggering without CPU intervention, while the Data Transfer Controller (DTC) supports four transfer modes with interrupt-source-specific configuration - both essential for deterministic real-time response in motor control and sensor fusion applications.

Key Specifications

Pinout & Package

Package: PLQP0064KB-A - 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed pad (no thermal pad designation in datasheet).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit industrial MCU applications.

Compared with R5F51136AGFM#3A, the D-grade variant reduces thermal margin but lowers unit cost, while the 384 KB variant trades flash density for scalability in feature-rich firmware deployments - neither offers pin-compatible upgrade paths without layout revision due to identical 64-pin LFQFP footprint but distinct memory mapping.

Availability

R5F51136AGFM#3A is available at Aetrix Electronics and suitable for industrial HMI, portable medical instrumentation, and smart energy metering requiring stable component supply, long-term lifecycle assurance, and automotive-qualified temperature grading.

Supply support for R5F51136AGFM#3A 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 infrastructure markets.

The RX113 Group - including R5F51136AGFM#3A - was designed for cost-sensitive, low-power embedded applications demanding rich analog integration, USB connectivity, and functional safety support (IEC 60730).

FAQ

What is the maximum operating frequency and CPU performance of the R5F51136AGFM#3A?

The R5F51136AGFM#3A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS (Dhrystone MIPS) performance. This is achieved via its 32-bit RX CPU core with five-stage pipeline, ultra-compact instruction set, and single-cycle 32×32 multiply-accumulate capability. The R5F51136AGFM#3A maintains this performance across its full operating voltage range (1.8–3.6 V) and temperature grade (–40 to +105°C).

Does the R5F51136AGFM#3A support USB On-The-Go (OTG) functionality?

Yes, the R5F51136AGFM#3A integrates a USB 2.0 host/function/OTG module compliant with USB 2.0 specification. It supports full-speed (12 Mbps) and low-speed (1.5 Mbps) modes, isochronous transfers, and Battery Charging (BC) 1.2 detection. The R5F51136AGFM#3A uses USB0_ID, USB0_VBUS, and USB0_EXICEN pins to manage OTG role switching and power negotiation in dual-role configurations.

What analog peripherals are integrated into the R5F51136AGFM#3A?

The R5F51136AGFM#3A integrates a 12-bit successive-approximation ADC with 17 input channels (1.0 µs conversion time), two 12-bit voltage-output DAC channels (0.35–AVCC–0.47 V range), two comparator B units (window/standard mode), an on-chip temperature sensor, and a capacitive touch sensing unit (CTSU) with 12 detection channels. All analog blocks share common reference pins (VREFH0/VREFL0, VREFH/VREFL) and operate from the same AVCC/AVSS supply domain.

What low-power modes does the R5F51136AGFM#3A support, and what is its standby current?

The R5F51136AGFM#3A supports three low-power modes: sleep, deep sleep, and software standby. In software standby mode - where only the low-power timer (LPT) and RTC remain active - supply current is 0.44 µA (typical). Recovery time from this state is 4.8 µs, enabling rapid wake-up for time-critical events. The R5F51136AGFM#3A also achieves 0.11 mA/MHz in high-speed operating mode for efficient active-power scaling.

Is the R5F51136AGFM#3A pin-compatible with other RX113 Group MCUs in the same package?

Yes, all RX113 Group MCUs in the PLQP0064KB-A (64-pin LFQFP) package - including R5F51136AGFM#3A, R5F51136ADFM#3A, and R5F51137AGFM#3A - share identical pinouts and electrical characteristics. Peripheral enablement (e.g., CTSU, LCD segments) varies by memory configuration and temperature grade, but mechanical and signal-level compatibility is maintained across the 64-pin variants for drop-in replacement within the same package family.