Renesas R5F51117ADFK#3A

Overview

R5F51117ADFK#3A from Renesas is a 32-bit RX111 Group microcontroller featuring a 32 MHz CPU core delivering 50 DMIPS, 384 KB on-chip flash memory with zero wait states, 64 KB SRAM, and integrated USB 2.0 full-speed host/function/OTG controller. It includes a 12-bit A/D converter (14 channels), 8-bit D/A converter (2 channels), RTC with calendar mode, and operates across −40 to +85°C for industrial control and embedded connectivity applications.

For engineers reviewing the R5F51117ADFK#3A datasheet, R5F51117ADFK#3A pinout, R5F51117ADFK#3A application, or R5F51117ADFK#3A equivalent, this MCU supports USB device/host/OTG, low-power software standby (0.44 μA), event-driven peripheral linking via ELC, background data flash operations, and IEC 60730-compliant safety functions - critical for real-time sensor hubs, portable medical devices, and smart industrial gateways.

Technical Context

The R5F51117ADFK#3A implements a CISC Harvard-architecture RX CPU with five-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiply-accumulate. Its clock system integrates PLL, high-speed on-chip oscillator (32 MHz ±1%), sub-clock (32.768 kHz), and CAC for frequency accuracy monitoring.

Peripheral integration includes MTU2 (6-channel 16-bit timer with complementary PWM), DTC (4 transfer modes triggered by interrupts), ELC (35-event direct module linking without CPU wake-up), and dual-mode SCI/I²C/RSPI/USB interfaces - enabling deterministic real-time I/O handling while maintaining ultra-low power in sleep modes.

Key Specifications

Pinout & Package

Package: PLQP0064GA-A - 64-pin LQFP, 14 × 14 mm body, 0.8 mm pitch, RoHS-compliant, lead-free (Sn only).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51117ADFK#3A, R5F51117ADFM#3A offers identical functionality in a smaller footprint but demands tighter layout tolerances, while R5F51116ADFK#3A provides full peripheral compatibility at lower memory cost - both preserve USB OTG, ELC, and IEC 60730 support without firmware changes.

Availability

R5F51117ADFK#3A is available at Aetrix Electronics and suitable for industrial sensor hubs, portable medical devices, and smart home gateways requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for R5F51117ADFK#3A 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, and power solutions for automotive, industrial, and IoT markets.

The RX111 Group targets cost-sensitive, low-power embedded applications demanding USB connectivity, rich analog integration, and functional safety - designed specifically for intelligent sensors, portable instrumentation, and edge-node controllers.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51117ADFK#3A?

The R5F51117ADFK#3A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RX CPU core supports single-cycle 32×32 multiplication and 64-bit accumulation, enabling efficient execution of real-time control algorithms and communication stacks without external acceleration.

Does the R5F51117ADFK#3A support USB On-The-Go (OTG) functionality?

Yes, the R5F51117ADFK#3A integrates a USB 2.0 host/function module that fully supports OTG operation, including BC (Battery Charger) detection, isochronous transfers, and role switching. The USB0_DP and USB0_DM pins provide a complete transceiver interface - no external PHY is required.

What low-power modes are available on the R5F51117ADFK#3A, and what is the lowest current consumption?

The R5F51117ADFK#3A offers three low-power modes, including software standby mode with 0.44 μA typical current consumption while retaining RTC and IWDT operation. Wake-up occurs in 4.8 μs, making it suitable for battery-powered applications requiring rapid responsiveness and multi-year operation.

How many analog input channels does the R5F51117ADFK#3A's 12-bit A/D converter support?

The R5F51117ADFK#3A includes a 12-bit A/D converter with up to 14 input channels (AN000–AN015, excluding AN005 and AN007). It achieves a minimum conversion time of 1.0 µs at 32 MHz ADCLK and supports double-trigger mode for motor control synchronization.

Is the R5F51117ADFK#3A qualified for functional safety standards like IEC 60730?

Yes, the R5F51117ADFK#3A incorporates hardware features required for IEC 60730 Class B compliance, including a clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated oscillator, RAM test assist logic, and voltage monitoring circuits - reducing software certification effort for household and industrial appliances.