Renesas R5F51114ADLF#U0

Overview

R5F51114ADLF#U0 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 96 KB on-chip flash, 16 KB SRAM, 8 KB data flash, 14-channel 12-bit ADC, dual 8-bit DACs, USB 2.0 full-speed host/function/OTG, RTC, and ELC/DTC peripherals - deployed in industrial HMI, sensor nodes, and USB-connected embedded control systems.

For engineers reviewing the R5F51114ADLF#U0 datasheet, R5F51114ADLF#U0 pinout, R5F51114ADLF#U0 application, or R5F51114ADLF#U0 equivalent, key selection criteria include its 64-pin WFLGA (5 × 5 mm, 0.5 mm pitch) package, −40 to +85°C temperature grade, integrated USB transceiver with BC support, and hardware-accelerated event-driven peripheral linking via ELC.

Technical Context

The R5F51114ADLF#U0 implements the RXv1 core with Harvard architecture, five-stage pipeline, and variable-length instructions - enabling 1-cycle instruction execution and ultra-compact code density. Its clock system integrates high-speed (32 MHz ±1%) and sub-clock (32.768 kHz) oscillators, PLL, and CAC for IEC 60730 compliance.

Peripheral coordination is handled by the Event Link Controller (ELC), which routes 35 event types directly between modules (e.g., MTU trigger → ADC start) without CPU intervention, while the Data Transfer Controller (DTC) supports chain transfers across four modes using interrupt sources as activation triggers.

Key Specifications

Pinout & Package

PWLG0064KA-A is a 64-pin Wafer-Level Glass Array (WFLGA) package measuring 5 × 5 mm with 0.5 mm pitch and an exposed thermal pad. It supports high-density PCB layouts and efficient thermal dissipation in space-constrained applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51114ADLF#U0, R5F51114ADFM#3A offers mechanical robustness and assembly flexibility at the cost of board area, while R5F51115ADLF#UA delivers immediate memory headroom for feature-rich firmware - both retain identical peripheral functionality and timing behavior.

Availability

R5F51114ADLF#U0 is available at Aetrix Electronics and suitable for industrial HMI, USB-connected sensor nodes, and medical handheld diagnostics requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F51114ADLF#U0 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 R5F51114ADLF#U0 - was designed for cost-sensitive, USB-enabled embedded control applications demanding low power, rich analog integration, and functional safety support without sacrificing performance.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51114ADLF#U0?

The R5F51114ADLF#U0 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RXv1 32-bit CPU core features a five-stage pipeline, variable-length instruction encoding, and a 64-bit accumulator that enables single-cycle 32×32 multiplication - making it suitable for deterministic real-time control tasks in the R5F51114ADLF#U0.

Does the R5F51114ADLF#U0 support USB On-The-Go (OTG) functionality?

Yes, the R5F51114ADLF#U0 integrates a USB 2.0 host/function module that fully supports OTG operation, including session request protocol (SRP), host negotiation protocol (HNP), and Battery Charger (BC) detection. The on-chip transceiver eliminates the need for external PHY components, and USB0_DP/USB0_DM pins are directly routable per the PWLG0064KA-A pinout in the R5F51114ADLF#U0 datasheet.

What are the memory resources available on the R5F51114ADLF#U0?

The R5F51114ADLF#U0 includes 96 KB of on-chip flash memory (executed with zero wait states at 32 MHz), 16 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 program/erase while executing code from main flash - a key capability for field firmware updates in the R5F51114ADLF#U0.

How does the Event Link Controller (ELC) enhance system efficiency in the R5F5114ADLF#U0?

The ELC in the R5F51114ADLF#U0 enables direct hardware-level linking between 35 event sources (e.g., timer overflow, ADC completion, GPIO edge) and target peripherals (e.g., ADC start, DAC update, MTU output compare), bypassing CPU interrupts entirely. This reduces latency, lowers CPU load, and allows the R5F51114ADLF#U0 to maintain low-power sleep modes while maintaining responsive peripheral coordination.

What is the operating temperature range and package type of the R5F51114ADLF#U0?

The R5F51114ADLF#U0 is rated for −40 to +85°C operation (D-grade) and uses the PWLG0064KA-A package: a 64-pin Wafer-Level Glass Array measuring 5 × 5 mm with 0.5 mm pitch and an exposed thermal pad. This compact, fine-pitch package supports high-density PCB designs while delivering thermal performance comparable to larger QFP variants of the R5F51114ADLF#U0.