Renesas R5F51115ADLF#UA

Overview

R5F51115ADLF#UA 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, 8 KB data flash, 14-channel 12-bit ADC, dual 8-bit DAC, USB 2.0 full-speed host/function/OTG, RTC, and ELC for event-driven peripheral coordination - deployed in industrial sensor nodes and USB-connected embedded control systems.

For engineers reviewing the R5F51115ADLF#UA datasheet, R5F51115ADLF#UA pinout, R5F51115ADLF#UA application, or R5F51115ADLF#UA equivalent, key selection criteria include its 64-pin WFLGA (5 × 5 mm, 0.5 mm pitch) package, −40°C to +85°C temperature grade, integrated USB transceiver with BC support, and software standby mode recovery in 4.8 μs.

Technical Context

The R5F51115ADLF#UA 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 frequency accuracy validation.

Peripheral coordination is managed via Event Link Controller (ELC), enabling direct module triggering without CPU intervention - critical for low-latency motor control and real-time sensor fusion. The DTC supports chain transfers across four modes, while MTU2 provides six 16-bit timer channels with complementary PWM and phase counting.

Key Specifications

Pinout & Package

Packaged in 64-pin WFLGA (PWLG0064KA-A), 5 × 5 mm, 0.5 mm pitch, with exposed thermal pad. Pin functions validated per Renesas R01DS0190EJ0130 Rev.1.30, Pages 10–14.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51115ADLF#UA, R5F51115ADFM#3A offers identical electrical and functional behavior in a larger QFP package, while R5F51113ADLF#UA delivers the same compact WFLGA form factor with scaled-down memory - enabling footprint-compatible migration paths across performance tiers.

Availability

R5F51115ADLF#UA is available at Aetrix Electronics and suitable for industrial sensor nodes, USB-connected HMI devices, and IEC 60730-compliant appliance controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F51115ADLF#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 R5F51115ADLF#UA - was designed for cost-sensitive, low-power embedded applications requiring USB connectivity, rich analog integration, and functional safety support without sacrificing real-time responsiveness.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51115ADLF#UA?

The R5F51115ADLF#UA operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RX CPU core features a five-stage pipeline, variable-length instruction encoding, and a 64-bit accumulator capable of single-cycle 32×32 multiply-accumulate operations - enabling deterministic real-time execution in motor control and sensor processing applications.

Does the R5F51115ADLF#UA support USB device, host, and OTG functionality?

Yes, the R5F51115ADLF#UA integrates a full-featured USB 2.0 module supporting host (with ≥32 KB ROM), function, and On-The-Go (OTG) modes. It achieves full-speed (12 Mbps) and low-speed (1.5 Mbps) transfer rates, supports isochronous transfers, and includes Battery Charger (BC) detection - all using its on-chip transceiver without external PHY components.

What are the memory resources available on the R5F51115ADLF#UA?

The R5F51115ADLF#UA includes 128 KB of on-chip flash memory (executed at full 32 MHz with zero wait states), 16 KB of SRAM (also zero-wait), 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 during non-volatile parameter updates.

Which package type and pin count does the R5F51115ADLF#UA use?

The R5F51115ADLF#UA uses a 64-pin WFLGA (Wafer-Level Glass Array) package designated PWLG0064KA-A, measuring 5 × 5 mm with 0.5 mm pitch and an exposed thermal pad. This ultra-compact package is optimized for space-constrained industrial and portable designs while maintaining full peripheral access including dual DACs and USB I/O.

Does the R5F51115ADLF#UA include hardware features for functional safety compliance?

Yes, the R5F51115ADLF#UA includes multiple hardware features aligned with IEC 60730 Class B requirements: Clock Frequency Accuracy Measurement (CAC) circuit, Independent Watchdog Timer (IWDT) with dedicated 15 kHz oscillator, voltage detection circuits (LVDA), and built-in RAM test assist logic - enabling certified self-test routines without external components.