Renesas R5F51117ADFM#1A

Overview

R5F51117ADFM#1A from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 384 KB on-chip flash, 64 KB SRAM, 8 KB data flash, 14-channel 12-bit ADC, dual 8-bit DAC, USB 2.0 full-speed host/function/OTG, RTC with calendar mode, and operation from −40°C to +85°C in a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch) package - used in industrial HMI, portable medical sensors, and USB-connected edge nodes.

For engineers reviewing the R5F51117ADFM#1A datasheet, R5F51117ADFM#1A pinout, R5F51117ADFM#1A application, or R5F51117ADFM#1A equivalent, this page delivers verified specifications, validated package mapping, confirmed peripheral integration (USBc, MTU2, RIIC, RSPI), exact memory configuration (384 KB flash / 64 KB SRAM / 8 KB E2 DataFlash), and real-world use context for rapid selection and design-in.

Technical Context

The R5F51117ADFM#1A 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. It integrates an Event Link Controller (ELC) enabling direct module-to-module triggering without CPU intervention, and a Data Transfer Controller (DTC) supporting chain transfer across four modes with interrupt-source-specific configuration.

Clock management includes independent ICLK/PCLK/FCLK domains, a high-speed on-chip oscillator (32 MHz ±1% over −20°C to +85°C), sub-clock (32.768 kHz) for RTC, and Clock Accuracy Measurement Circuit (CAC) for IEC 60730 compliance. Power control supports software standby mode (0.44 μA) with 4.8 μs wake-up and three low-power operating modes.

Key Specifications

Pinout & Package

Package: PLQP0064KB-A - 64-pin Low-Profile Quad Flat Package, 10 × 10 mm body, 0.5 mm pitch, lead-free (Sn only), RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51117AGFM#3A, the R5F51117ADFM#1A offers identical functionality at lower temperature grade and cost; versus R5F51116ADFM#3A, it provides +128 KB flash and +32 KB SRAM for complex USB protocol stacks or local data buffering - critical for edge-node autonomy.

Availability

R5F51117ADFM#1A is available at Aetrix Electronics and suitable for industrial HMI, portable medical devices, and USB-connected edge nodes requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for R5F51117ADFM#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 industrial, automotive, and IoT markets.

The RX111 Group - including R5F51117ADFM#1A - was designed for cost-sensitive, low-power embedded applications demanding USB connectivity, rich analog integration, and functional safety support (IEC 60730).

FAQ

What is the maximum operating frequency and core performance of the R5F51117ADFM#1A?

The R5F51117ADFM#1A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance using its 32-bit RX CPU core. Its five-stage pipeline, 64-bit accumulator, and single-cycle 32×32 multiplier enable deterministic real-time execution - confirmed in Renesas' R01DS0190EJ0130 datasheet Section 1.1. This performance level supports USB full-speed protocol handling and fast ADC sampling loops within the R5F51117ADFM#1A's resource constraints.

Does the R5F51117ADFM#1A support USB On-The-Go (OTG) and Battery Charging (BC) detection?

Yes, the R5F51117ADFM#1A integrates a USB 2.0 host/function module (USBc) that fully supports On-The-Go (OTG) negotiation and Battery Charger (BC) v1.2 detection. The USB0_ID pin enables OTG role switching, while USB0_VBUS monitoring and USB0_OVRCURA/B pins provide overcurrent protection - all documented in Section 1.4 (Pin Functions) and Table 1.1 of the R01DS0190EJ0130 datasheet. This makes the R5F51117ADFM#1A suitable for self-powered peripherals requiring dual-role USB connectivity.

What are the memory resources allocated in the R5F51117ADFM#1A?

The R5F51117ADFM#1A contains 384 KB of on-chip flash memory (for program/code storage), 64 KB of SRAM (for runtime variables and stack), and 8 KB of data flash (E2 DataFlash) rated for 1,000,000 erase/write cycles. These values are explicitly listed in Table 1.3 (List of Products) of the R01DS0190EJ0130 datasheet for orderable part R5F51117ADFM#3A - and confirmed identical for R5F51117ADFM#1A per Renesas' packaging and marking conventions. All memory operates at full 32 MHz with zero wait states.

Which packages are compatible with the R5F51117ADFM#1A, and what is its pin count?

The R5F51117ADFM#1A is supplied exclusively in the PLQP0064KB-A package: a 64-pin Low-Profile Quad Flat Package measuring 10 × 10 mm with 0.5 mm pitch. This matches the "FM" suffix in the part number per Figure 1.1 of the R01DS0190EJ0130 datasheet. No other package variants (e.g., LQFP or WFLGA) are assigned to the "ADFM" variant - only the 64-pin LFQFP is valid for R5F51117ADFM#1A.

Does the R5F51117ADFM#1A include hardware features for functional safety compliance?

Yes, the R5F51117ADFM#1A integrates multiple hardware features targeting IEC 60730 Class B compliance, including a Clock Accuracy Measurement Circuit (CAC), Independent Watchdog Timer (IWDT) with dedicated 15 kHz oscillator, and built-in RAM test assist functions. These are explicitly listed under "On-chip functions for IEC 60730 compliance" in the datasheet's Features section and detailed in Section 1.1. They enable systematic fault detection without external components - a key design value for R5F51117ADFM#1A in safety-aware industrial applications.