Renesas R5F51115ADFM#V0

Overview

R5F51115ADFM#V0 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, and 8 KB data flash. It integrates a 12-bit A/D converter (14 channels, 1.0 µs conversion), USB 2.0 full-speed host/function/OTG, RTC with calendar mode, and operates across −40°C to +85°C in a 64-pin LFQFP (PLQP0064KB-A) package for industrial control and embedded connectivity applications.

For engineers reviewing the R5F51115ADFM#V0 datasheet, R5F51115ADFM#V0 pinout, R5F51115ADFM#V0 application, or R5F51115ADFM#V0 equivalent, this page delivers verified specifications, package-confirmed pin functions, real-world use cases, and validated alternative parts - all aligned to the RX111 Group's documented capabilities and functional boundaries per Rev.1.30 datasheet.

Technical Context

The R5F51115ADFM#V0 implements a CISC Harvard architecture with five-stage pipeline, variable-length instruction encoding, and on-chip debugging via FINE interface. Its clock system includes high-speed (32 MHz ±1%) and sub-clock (32.768 kHz) oscillators, PLL, and dedicated IWDT oscillator (15 kHz), enabling precise timing control and low-power operation.

Peripheral integration centers on event-driven operation: the Event Link Controller (ELC) routes 35 event signals directly between modules (e.g., MTU2 → S12AD trigger) without CPU intervention, while the Data Transfer Controller (DTC) supports chain transfers triggered by 82 interrupt sources - critical for deterministic sensor-to-memory or USB-to-SRAM data movement.

Key Specifications

Pinout & Package

Package: PLQP0064KB-A - 64-pin Low-Profile Quad Flat Package, 10 × 10 mm body, 0.5 mm pitch, exposed pad (non-electrical).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51115AGFM#3A, the R5F51115ADFM#V0 offers identical feature parity at lower thermal rating and price, while R5F51113ADFM#3A reduces memory and analog resources - enabling tiered product variants without PCB redesign.

Availability

R5F51115ADFM#V0 is available at Aetrix Electronics and suitable for industrial HMI panels, USB sensor gateways, smart thermostats, medical monitoring devices, and IEC 60730-compliant appliance controllers requiring stable component supply and long-term manufacturability.

Supply support for R5F51115ADFM#V0 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, power, and SoC solutions for industrial, automotive, and IoT markets.

The RX111 Group, including R5F51115ADFM#V0, was designed for cost-sensitive, low-power embedded applications demanding USB connectivity, precision timing, and functional safety support - targeting industrial automation, building controls, and portable medical devices.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51115ADFM#V0?

The R5F51115ADFM#V0 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its 32-bit RX CPU core features a five-stage pipeline, variable-length instructions, and hardware multiplier/divider - enabling efficient execution of real-time control algorithms and USB protocol stacks without external acceleration.

Does the R5F51115ADFM#V0 support USB On-The-Go (OTG) functionality?

Yes, the R5F51115ADFM#V0 integrates a USB 2.0 host/function module that fully supports OTG operation, including session request protocol (SRP), host negotiation protocol (HNP), and Battery Charging (BC) v1.2 detection. This allows the device to dynamically switch between host and peripheral roles using a single USB port and mini-AB connector.

What are the analog capabilities of the R5F51115ADFM#V0, and are they available in all package variants?

The R5F51115ADFM#V0 includes a 12-bit A/D converter with up to 14 input channels and two 8-bit D/A converters. These analog peripherals are confirmed available only in 64-pin packages such as the PLQP0064KB-A used by R5F51115ADFM#V0 - not supported in 48-pin, 40-pin, or 36-pin variants per Table 1.2 of the datasheet.

How does the Event Link Controller (ELC) enhance real-time performance in the R5F5115ADFM#V0?

The ELC in the R5F51115ADFM#V0 enables direct hardware-level linking between 35 event sources (e.g., MTU2 overflow, RTC alarm) and target modules (e.g., S12AD start, DTC activation), bypassing CPU interrupt handling. This reduces latency to one bus cycle and allows deterministic peripheral coordination - essential for motor control timing and low-power synchronized sensing.

What low-power modes are supported by the R5F51115ADFM#V0, and what is the lowest achievable current draw?

The R5F51115ADFM#V0 supports three low-power modes: sleep, deep sleep, and software standby. In software standby mode, it achieves 0.44 µA typical current draw while retaining RAM and register contents, with 4.8 µs wake-up time from RTC alarm or external interrupt - ideal for battery-powered sensor nodes requiring infrequent wake-ups.