Renesas R5F51138ADFP#30

Overview

R5F51138ADFP#30 from Renesas is a 32-bit RX113 Group microcontroller featuring a 32 MHz CPU core delivering 50 DMIPS, 512 Kbytes of on-chip flash memory, 64 Kbytes of SRAM, and integrated USB 2.0 full-speed host/function/OTG capability. It supports capacitive touch sensing (12 channels), LCD controller/driver (40×4 or 36×8), 12-bit A/D (17 channels) and D/A (2 channels), RTC, and operates from 1.8–3.6 V across –40 to +85°C for industrial human-interface and embedded control applications.

For engineers reviewing the R5F51138ADFP#30 datasheet, R5F51138ADFP#30 pinout, R5F51138ADFP#30 application, or R5F51138ADFP#30 equivalent, this page delivers verified specifications, package mapping to PLQP0100KB-A (100-pin LFQFP), validated peripheral integration (USB, CTSU, LCDC), and real-world selection guidance for low-power, mixed-signal MCU design in medical devices, smart appliances, and industrial HMI systems.

Technical Context

The R5F51138ADFP#30 implements a CISC Harvard-architecture RX CPU with five-stage pipeline, variable-length instructions, and ultra-compact code density. Its clock system integrates a high-speed on-chip oscillator (32 MHz ±1%), PLL, sub-clock (32.768 kHz), and dedicated IWDT oscillator (15 kHz), enabling precise timing for RTC, low-power timer (LPT), and USB synchronization.

Peripheral coordination is managed via the Event Link Controller (ELC), allowing direct module-to-module triggering without CPU intervention-critical for deterministic response in motor control and capacitive touch sensing. The Data Transfer Controller (DTC) supports four transfer modes with chain operation, while the Multi-function Timer Pulse Unit 2 (MTU2) provides six 16-bit channels with complementary PWM, phase counting, and A/D trigger generation.

Key Specifications

Pinout & Package

Package: PLQP0100KB-A - 100-pin Low-Profile Quad Flat Package, 14 mm × 14 mm body, 0.5 mm lead pitch, exposed pad for thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51138AGFP#3A and R5F51137ADFP#3A, the R5F51138ADFP#30 offers optimal balance of temperature rating, memory headroom, and production availability for general-purpose industrial HMI and control applications - avoiding over-specification while preserving upgrade path to higher flash variants.

Availability

R5F51138ADFP#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart appliance controllers, portable medical monitors, USB-C diagnostic tools, and capacitive-touch enabled consumer electronics requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F51138ADFP#30 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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX113 Group is designed for low-power, high-integration embedded applications demanding rich analog peripherals, capacitive touch, USB connectivity, and functional safety support - targeting human-machine interfaces, smart home devices, and portable instrumentation.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51138ADFP#30?

The R5F51138ADFP#30 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 set, and hardware multiplier/divider - enabling efficient execution of real-time control algorithms and communication stacks without external acceleration. This performance level is sustained across its full 1.8–3.6 V supply range.

Does the R5F51138ADFP#30 support USB device, host, and OTG functionality simultaneously?

Yes, the R5F51138ADFP#30 integrates a single-port USB 2.0 full-speed (12 Mbps) module supporting device, host, and On-The-Go (OTG) modes. It includes a built-in transceiver, BC (Battery Charger) detection, and isochronous transfer capability - allowing dynamic role switching (e.g., acting as a USB device when connected to a PC or as a host when reading from a USB stick) without external components.

How many capacitive touch channels does the R5F51138ADFP#30 support, and what noise immunity features are included?

The R5F51138ADFP#30 supports up to 12 capacitive touch sensing channels via its dedicated CTSU peripheral. It incorporates an on-chip noise canceller that actively suppresses high-frequency interference, enabling reliable operation in electrically noisy environments such as near switching power supplies or display backlights. Both self-capacitance and mutual-capacitance measurement methods are supported.

What are the key low-power capabilities of the R5F51138ADFP#30, and how fast is wake-up from standby?

The R5F51138ADFP#30 offers three low-power modes, including software standby with 0.44 µA typical current consumption. It features a dedicated Low Power Timer (LPT) that runs from the 32.768 kHz sub-clock during standby, enabling precise wake-up intervals. Recovery time from software standby mode is 4.8 µs - allowing rapid response to external events while maintaining ultra-low quiescent current.

Is the R5F51138ADFP#30 pin-compatible with other RX113 Group MCUs in the same package?

Yes, the R5F51138ADFP#30 is fully pin-compatible with other 100-pin LFQFP variants in the RX113 Group, including R5F51137ADFP#3A and R5F51138AGFP#3A. All share identical PLQP0100KB-A packaging, I/O mapping, and peripheral pin assignments - enabling hardware reuse across different memory configurations and temperature grades without PCB redesign.