Renesas R5F51118ADNE#2A

Overview

R5F51118ADNE#2A from Renesas is a 32-bit RX111 Group microcontroller featuring a 32 MHz CPU core delivering 50 DMIPS, 512 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), dual 8-bit D/A outputs, RTC with calendar mode, and operates from 1.8–3.6 V across −40 to +85°C.

For engineers reviewing the R5F51118ADNE#2A datasheet, R5F51118ADNE#2A pinout, R5F51118ADNE#2A application, or R5F51118ADNE#2A equivalent, key selection criteria include USB OTG support with BC (Battery Charger) compliance, hardware-accelerated background data flash operations (1M erase/write cycles), and ELC-driven low-power peripheral coordination without CPU wake-up.

Technical Context

The R5F51118ADNE#2A implements a CISC Harvard architecture with five-stage pipeline and variable-length instructions, enabling ultra-compact code density. Its event link controller (ELC) directly routes 35 event signals between peripherals-such as MTU2 timers and A/D conversion triggers-bypassing interrupt latency and enabling synchronized operation during software standby mode.

It integrates a dedicated 15 kHz on-chip oscillator for the independent watchdog timer (IWDT), a clock frequency accuracy measurement circuit (CAC) for IEC 60730 compliance, and supports dual-clock domains: system clock (ICLK) up to 32 MHz and peripheral clock (PCLK) independently configurable at up to 32 MHz.

Key Specifications

Pinout & Package

Packaged in a 48-pin HWQFN (PWQN0048KB-A), 7 × 7 mm, 0.5 mm pitch, with exposed thermal pad. Pin count and peripheral channel availability align with the 48-pin variant per Table 1.2: 30 general I/O pins, 10-channel A/D (6 high-precision), no D/A converter, and SCI1/SCI5/SCIf/RIIC/RSPI/USB interfaces retained.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51118ADNE#2A, R5F51118AGNE#UA extends thermal range without altering functionality, while R5F51116ADNE#UA reduces memory capacity but maintains full peripheral compatibility - both retain identical USB OTG, ELC, and BGO capabilities for seamless migration.

Availability

R5F51118ADNE#2A is available at Aetrix Electronics and suitable for industrial sensor nodes, USB-C enabled embedded devices, motor control edge nodes, and building automation gateways requiring stable component supply and long-term production continuity.

Supply support for R5F51118ADNE#2A 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 targets cost-sensitive, low-power embedded applications demanding USB connectivity, rich analog integration, and functional safety support - designed for industrial control, smart sensors, and portable medical devices.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51118ADNE#2A?

The R5F51118ADNE#2A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its 32-bit RX CPU core features a five-stage pipeline, variable-length instruction encoding, and hardware multiplier/divider - enabling efficient execution of real-time control algorithms. This performance level is sustained across the full 1.8–3.6 V supply range, with no wait states on flash or SRAM access.

Does the R5F51118ADNE#2A support USB On-The-Go (OTG) functionality?

Yes, the R5F51118ADNE#2A integrates a USB 2.0 host/function module that fully supports On-The-Go (OTG) operation. It complies with USB 2.0 specifications, supports full-speed (12 Mbps) and low-speed (1.5 Mbps) modes, enables isochronous transfers, and includes Battery Charger (BC) detection. The R5F51118ADNE#2A uses dedicated USB0_DP and USB0_DM pins and supports ID pin detection for OTG role negotiation.

What low-power modes are available on the R5F51118ADNE#2A, and what is the lowest supply current?

The R5F51118ADNE#2A offers three low-power consumption modes: sleep, deep sleep, and software standby. In software standby mode, it draws just 0.44 μA while retaining SRAM and register contents. Recovery time from this state is 4.8 μs, and the RTC can generate the wake-up event. The high-speed operating mode consumes 0.11 mA/MHz, making the R5F51118ADNE#2A suitable for battery-powered applications with strict energy budgets.

How many A/D and D/A channels does the R5F51118ADNE#2A support in its 48-pin HWQFN package?

In the 48-pin HWQFN (PWQN0048KB-A) package, the R5F51118ADNE#2A supports 10 channels of the 12-bit A/D converter (with 6 high-precision inputs) and does not include the 8-bit D/A converter - which is only available in 64-pin variants. The A/D inputs are mapped to pins including P03, P05, P14–P17, P26–P27, P30–P32, and P35, enabling flexible analog signal acquisition in space-constrained designs.

Is the R5F51118ADNE#2A pin-compatible with other RX111 Group MCUs in the same package?

Yes, the R5F51118ADNE#2A is pin-compatible with all other RX111 Group MCUs offered in the 48-pin HWQFN (PWQN0048KB-A) package, including R5F51116ADNE#UA and R5F51117ADNE#UA. They share identical pin assignments, peripheral mappings, and electrical characteristics - allowing memory-size-based scalability without PCB redesign. Firmware porting requires only reconfiguration of flash/RAM initialization and peripheral clock settings.