Renesas R5F51116ADFM#1A

Overview

R5F51116ADFM#1A from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 256 Kbytes of on-chip flash, 32 Kbytes of SRAM, 8 Kbytes of data flash, a 12-bit A/D converter with 14 channels, two 8-bit D/A outputs, USB 2.0 full-speed host/function/OTG, RTC, and operation from 1.8–3.6 V in −40 to +85°C industrial temperature range. It targets embedded control in portable medical devices, industrial sensors, and USB-connected edge nodes.

For engineers reviewing the R5F5116ADFM#1A datasheet, R5F51116ADFM#1A pinout, R5F51116ADFM#1A application, or R5F51116ADFM#1A equivalent, key selection criteria include its 64-pin LFQFP (PLQP0064KB-A) package, integrated USB transceiver with BC support, dual D/A capability, and software standby mode recovery time of 4.8 μs - critical for low-power USB peripheral designs.

Technical Context

The R5F51116ADFM#1A 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 operations. Its clock system integrates PLL, high-speed on-chip oscillator (32 MHz ±1%), sub-clock (32.768 kHz), and CAC for IEC 60730 compliance.

Peripheral coordination is handled via Event Link Controller (ELC), enabling direct module triggering without CPU intervention, and Data Transfer Controller (DTC) supporting chain transfers across four modes. The MCU supports background operation (BGO) for data flash writes while executing code from main flash.

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), RoHS-compliant lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51116ADFM#1A, R5F51116AGFM#3A extends thermal range without altering electrical behavior, while R5F51115ADFM#3A reduces memory capacity to lower BOM cost - both retain full USB, A/D, D/A, and ELC functionality in the same 64-pin footprint.

Availability

R5F51116ADFM#1A is available at Aetrix Electronics and suitable for portable medical devices, industrial USB gateways, and smart energy monitors requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for R5F51116ADFM#1A 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 automotive, industrial, and IoT markets.

The RX111 Group, including R5F51116ADFM#1A, was designed for cost-sensitive, low-power embedded applications demanding USB connectivity, precision analog interfaces, and functional safety support - targeting medical, home appliance, and industrial control segments.

FAQ

What is the maximum operating frequency and core performance of the R5F51116ADFM#1A?

The R5F51116ADFM#1A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RX CPU core features a five-stage pipeline, 64-bit accumulator for single-cycle 32×32 multiply-accumulate operations, and variable-length instruction encoding. This enables deterministic real-time execution for sensor fusion and USB protocol handling in the R5F51116ADFM#1A.

Does the R5F51116ADFM#1A support USB Battery Charging (BC) specification?

Yes, the R5F51116ADFM#1A fully supports USB Battery Charging (BC) 1.2 specification through its integrated USB 2.0 transceiver. It detects SDP (Standard Downstream Port), CDP (Charging Downstream Port), and DCP (Dedicated Charging Port) configurations via the USB0_ID, USB0_VBUS, and internal BC logic. This capability is implemented in hardware and requires no external components in the R5F51116ADFM#1A.

What are the analog capabilities of the R5F51116ADFM#1A?

The R5F51116ADFM#1A integrates a 12-bit successive-approximation A/D converter with up to 14 input channels and 1.0 μs minimum conversion time at 32 MHz ADCLK, plus two independent 8-bit D/A converters (DA0, DA1) with 0–VCC output range. These analog resources are supported by dedicated AVCC0/AVSS0 and VREFH0/VREFL0 pins, enabling precision signal acquisition and programmable bias generation within the R5F51116ADFM#1A.

Which low-power modes does the R5F51116ADFM#1A support, and what is its deepest sleep current?

The R5F51116ADFM#1A supports three low-power modes: Sleep, Deep Sleep, and Software Standby. In Software Standby mode, it draws just 0.44 μA typical supply current while retaining SRAM and register contents, with a wake-up latency of 4.8 μs. This ultra-low-power state is ideal for USB suspend/resume scenarios and intermittent sensor polling in battery-powered R5F51116ADFM#1A deployments.

Is the R5F51116ADFM#1A pin-compatible with other RX111 Group members?

Yes, the R5F51116ADFM#1A in the PLQP0064KB-A package is pin-compatible with all other 64-pin RX111 variants (e.g., R5F51118ADFM#3A, R5F51115ADFM#3A) sharing the same footprint. Pin functions, power domains, and peripheral mappings are consistent across the family, allowing memory-size or temperature-grade upgrades without PCB redesign - a key interoperability feature of the R5F51116ADFM#1A.