Renesas R5F51136ADLJ#20

Overview

R5F51136ADLJ#20 from Renesas is a 32-bit RX113 Group microcontroller featuring a 32 MHz CPU core delivering 50 DMIPS, 256 KB on-chip flash memory with zero wait states, 32 KB SRAM, and integrated USB 2.0 full-speed host/function/OTG. It supports capacitive touch sensing (12 channels), LCD controller (40×4 segment), 12-bit A/D (17 channels), 12-bit D/A (2 channels), RTC, and operates from 1.8–3.6 V in industrial temperature range (−40 to +85°C). It targets embedded human-interface and sensor-fused control applications.

For engineers reviewing the R5F51136ADLJ#20 datasheet, R5F51136ADLJ#20 pinout, R5F51136ADLJ#20 application, or R5F51136ADLJ#20 equivalent, this page delivers verified technical context, package mapping to PTLG0100JA-A (100-pin TFLGA, 7×7 mm, 0.65 mm pitch), confirmed peripheral integration (USB, CTSU, LCDC, S12AD), and real-world selection guidance for industrial HMI, portable medical devices, and smart sensor nodes.

Technical Context

The R5F51136ADLJ#20 implements the 32-bit RX CPU core with Harvard architecture, five-stage pipeline, and variable-length instruction set-enabling ultra-compact code and single-cycle instruction execution at 32 MHz. Its clock system integrates high-speed on-chip oscillator (32 MHz ±1%), sub-clock (32.768 kHz), PLL, and USB-dedicated PLL, all managed via independent ICLK/PCLK/FCLK domains.

Peripheral coordination is handled by the Event Link Controller (ELC), enabling direct module-to-module triggering without CPU intervention, and the Data Transfer Controller (DTC) supporting normal, repeat, and block transfer modes activated by 44 event sources-including MTU2 timers and A/D conversion triggers.

Key Specifications

Pinout & Package

Package: PTLG0100JA-A - 100-pin Thin Fine-Pitch Land Grid Array (TFLGA), 7 mm × 7 mm body, 0.65 mm pitch, exposed thermal pad, RoHS-compliant SnCu finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51136ADFP#3A, R5F51136ADLJ#20 saves 49 mm² board area and improves thermal dissipation via TFLGA's thermal pad; versus R5F51136AGLJ#2A, it provides identical functionality at lower cost where ambient temperature remains ≤85°C.

Availability

R5F51136ADLJ#20 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensors, smart home sensor nodes, and USB-C enabled industrial tools requiring stable component supply across long production lifecycles.

Supply support for R5F51136ADLJ#20 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 cost-sensitive, low-power embedded applications demanding rich analog integration, capacitive touch, LCD driving, and USB connectivity-targeting human-machine interface and intelligent sensor edge nodes.

FAQ

What is the maximum operating frequency and power supply range for the R5F51136ADLJ#20?

The R5F51136ADLJ#20 operates at a maximum frequency of 32 MHz when supplied with 2.7–3.6 V. At 1.8–2.4 V, max frequency is limited to 8 MHz; at 2.4–2.7 V, it is 16 MHz. The supply current is 3.6 mA (typ.) at 32 MHz, and software standby current is 0.44 µA. These values are specified over the −40 to +85°C industrial temperature range.

Does the R5F51136ADLJ#20 support USB On-The-Go (OTG) and battery charging detection?

Yes, the R5F51136ADLJ#20 integrates a full USB 2.0 host/function/OTG module compliant with BC (Battery Charger) specification 1.2. It supports USB0_ID pin detection for OTG role negotiation, USB0_VBUS monitoring, and overcurrent detection via USB0_OVRCURA/B pins-enabling robust USB-C accessory interfacing and charging source identification without external components.

How many capacitive touch channels does the R5F51136ADLJ#20 support, and what methods are available?

The R5F51136ADLJ#20 supports 12 capacitive touch sensing channels (TS0–TS11) via its integrated CTSU. It supports both self-capacitance and mutual-capacitance measurement methods, with an on-chip noise canceller for high disturbance immunity. Mutual-capacitance mode allows scalable touch channel expansion with minimal pin count, making it suitable for slider, wheel, and multi-touch button implementations.

What LCD panel configurations are supported by the R5F51136ADLJ#20's built-in controller?

The R5F51136ADLJ#20's LCDC supports two segment/common configurations: 40 segment × 4 common or 36 segment × 8 common. It includes an on-chip voltage boost circuit, programmable contrast adjustment, blinking control, and 5-V panel support. The controller drives SEG00–SEG39 and COM0–COM7 directly, eliminating need for external LCD bias generators in most monochrome applications.

Is the R5F51136ADLJ#20 qualified for functional safety standards like IEC 60730?

Yes, the R5F51136ADLJ#20 includes hardware features required for Class B compliance per IEC 60730: clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated 15-kHz oscillator, RAM test assist functions, and dual voltage detection circuits (LVDAa) with selectable thresholds. These enable safe startup, runtime monitoring, and fault recovery in household and industrial appliances.