Renesas R5F51118ADNE#UA

Overview

R5F51118ADNE#UA from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 512 KB on-chip flash, 64 KB SRAM, 8 KB data flash, USB 2.0 full-speed host/function/OTG, 12-bit A/D converter (14 channels), 8-bit D/A converter (2 channels), RTC with calendar mode, and hardware event link controller (ELC) for low-latency peripheral coordination - deployed in industrial HMI, portable medical sensors, and USB-connected IoT edge nodes.

For engineers reviewing the R5F51118ADNE#UA datasheet, R5F51118ADNE#UA pinout, R5F51118ADNE#UA application, or R5F51118ADNE#UA equivalent, key selection criteria include its HWQFN-48 package (7 × 7 mm, 0.5 mm pitch), −40°C to +85°C temperature grade (D version), integrated USB transceiver with BC support, ELC-triggered timer-to-A/D synchronization, and 1,000,000-cycle data flash endurance for firmware-over-the-air updates.

Technical Context

The R5F51118ADNE#UA implements a CISC Harvard architecture RX CPU core with five-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiply-accumulate operations. Its clock system integrates high-speed on-chip oscillator (32 MHz ±1%), PLL, sub-clock (32.768 kHz), and CAC for real-time frequency accuracy monitoring.

Peripheral coordination is handled via Event Link Controller (ELC), enabling direct module-to-module triggering without CPU intervention - e.g., MTU2 timer events can initiate A/D conversion or RSPI transfers while CPU remains in software standby mode with 0.44 μA supply current and 4.8 μs wake-up time.

Key Specifications

Pinout & Package

PWQN0048KB-A is a 48-pin wettable flank QFN package with 7 × 7 mm footprint, 0.5 mm pitch, and exposed thermal pad for enhanced thermal dissipation in space-constrained industrial and portable designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51118ADNE#UA, R5F51118AGNE#UA adds extended temperature tolerance without trade-offs, while R5F51116ADNE#UA reduces memory capacity to lower unit cost - both retain full USB, ELC, and A/D functionality in the same HWQFN-48 footprint.

Availability

R5F51118ADNE#UA is available at Aetrix Electronics and suitable for industrial HMI, portable medical sensors, and USB-capable IoT gateways requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for R5F51118ADNE#UA 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 R5F51118ADNE#UA, was designed for ultra-low-power, USB-connected embedded applications demanding rich analog integration, deterministic real-time control, and functional safety support (IEC 60730).

FAQ

What is the maximum operating frequency and core performance of the R5F51118ADNE#UA?

The R5F51118ADNE#UA operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance using its 32-bit RX CPU core. It features a five-stage pipeline, variable-length instruction encoding, and a 64-bit accumulator capable of handling 32×32 multiplication results in a single instruction cycle - enabling efficient signal processing and real-time control tasks in the R5F51118ADNE#UA.

Does the R5F51118ADNE#UA support USB On-The-Go (OTG) functionality?

Yes, the R5F51118ADNE#UA integrates a USB 2.0 host/function module that fully supports On-The-Go (OTG) operation, including session request protocol (SRP) and host negotiation protocol (HNP). It provides full-speed (12 Mbps) and low-speed (1.5 Mbps) modes, isochronous transfers, and Battery Charger (BC) detection - all implemented with an on-chip transceiver, eliminating external PHY components in the R5F51118ADNE#UA design.

What are the memory resources available on the R5F51118ADNE#UA?

The R5F51118ADNE#UA includes 512 KB of on-chip flash memory (executed with zero wait states at 32 MHz), 64 KB of SRAM, and 8 KB of data flash rated for 1,000,000 erase/write cycles. The data flash supports Background Operation (BGO), allowing concurrent code execution and firmware parameter updates - a key reliability feature built into the R5F51118ADNE#UA for field-upgradable systems.

How does the Event Link Controller (ELC) enhance real-time performance in the R5F5118ADNE#UA?

The ELC in the R5F51118ADNE#UA enables direct hardware-level triggering between peripherals - for example, an MTU2 timer overflow can initiate an A/D conversion or RSPI transfer without CPU involvement or interrupt latency. This reduces system jitter, lowers CPU load, and allows the R5F51118ADNE#UA to maintain responsiveness in deep sleep modes while coordinating time-critical analog and communication sequences.

What is the operating temperature range and package type of the R5F51118ADNE#UA?

The R5F51118ADNE#UA is rated for −40°C to +85°C (D-grade) and housed in a 48-pin HWQFN package (PWQN0048KB-A) with 7 × 7 mm footprint and 0.5 mm pitch. Its wettable flank structure supports automated optical inspection (AOI), and the exposed thermal pad improves heat dissipation in compact, sealed enclosures typical of the R5F51118ADNE#UA's target applications.