Renesas R5F51118ADFM#1A

Overview

R5F51118ADFM#1A 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, 14-channel 12-bit ADC, dual 8-bit DACs, USB 2.0 full-speed host/function/OTG, RTC with calendar mode, and hardware event linking (ELC) for low-latency peripheral coordination - deployed in industrial HMI, sensor gateway, and USB-connected embedded control systems.

For engineers reviewing the R5F51118ADFM#1A datasheet, R5F51118ADFM#1A pinout, R5F51118ADFM#1A application, or R5F51118ADFM#1A equivalent, key selection criteria include its 64-pin LFQFP (PLQP0064KB-A) package, −40°C to +85°C temperature grade, integrated USB transceiver with BC support, ELC-triggered timer-to-ADC synchronization, and IEC 60730-compliant safety features including CAC and IWDT.

Technical Context

The R5F51118ADFM#1A 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 real-time frequency accuracy monitoring.

Peripheral coordination is managed 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

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51118AGFM#3A, the R5F51118ADFM#1A trades extended temperature rating for lower cost in standard environments; versus R5F51117ADFM#3A, it delivers 128 KB additional flash for complex USB protocol stacks or OTA update partitions - all three share identical pinout, ELC behavior, and safety hardware.

Availability

R5F51118ADFM#1A is available at Aetrix Electronics and suitable for industrial HMI, USB sensor gateways, and smart appliance control requiring stable component supply, long-term lifecycle assurance, and Renesas-qualified production traceability.

Supply support for R5F51118ADFM#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 automotive, industrial, and IoT markets.

The RX111 Group - including R5F51118ADFM#1A - was designed for cost-sensitive, USB-connected embedded applications demanding robust real-time performance, low-power operation, and functional safety compliance in compact form factors.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51118ADFM#1A?

The R5F51118ADFM#1A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance using its 32-bit RX CPU core. This performance level is achieved with zero wait-state execution from on-chip flash memory, supported by a five-stage pipeline and ultra-compact instruction encoding. The R5F51118ADFM#1A maintains this speed across its full 1.8–3.6 V supply range when VCC ≥ 2.7 V.

Does the R5F51118ADFM#1A support USB On-The-Go (OTG) functionality?

Yes, the R5F51118ADFM#1A 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 also implements Battery Charger (BC) detection per v1.2, enabling automatic identification of charging ports. The R5F51118ADFM#1A uses dedicated USB0_DP and USB0_DM pins with an internal transceiver - no external PHY is required.

What low-power modes are available on the R5F51118ADFM#1A, and what is the lowest current draw?

The R5F51118ADFM#1A offers three low-power consumption modes: sleep, deep sleep, and software standby. In software standby mode, it draws just 0.44 μA while retaining full SRAM and register contents, with a wake-up time of 4.8 μs. This mode is exited via RTC alarm, external interrupt, or USB resume signal - making the R5F51118ADFM#1A suitable for battery-backed sensor nodes and always-on control interfaces.

Is the R5F51118ADFM#1A qualified for IEC 60730 Class B compliance?

Yes, the R5F5118ADFM#1A includes hardware features specifically designed for IEC 60730 Class B compliance: a clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated 15 kHz oscillator, RAM test assist logic, and dual voltage detection circuits. These are documented in Renesas' Functional Safety Manual for the RX111 Group and validated per IEC 60730-1 Annex H requirements - critical for R5F51118ADFM#1A deployment in white goods and industrial controllers.

What package type and pin count does the R5F51118ADFM#1A use?

The R5F51118ADFM#1A is supplied in the PLQP0064KB-A package: a 64-pin Low-Profile Quad Flat Package measuring 10 × 10 mm with 0.5 mm pitch and lead-free (Sn-only) terminations. This package supports all R5F51118ADFM#1A features including dual 8-bit DAC outputs, 14-channel ADC, and USB transceiver - distinguishing it from smaller 48-pin or 40-pin variants that omit DACs and reduce ADC channel count.