Renesas R5F51137AGFP#1A

Overview

R5F51137AGFP#1A from Renesas is a 32-bit RX113 Group microcontroller with 384 KB flash, 64 KB SRAM, and 8 KB data flash, operating at up to 32 MHz (50 DMIPS), featuring USB 2.0 full-speed host/function/OTG, 17-channel 12-bit A/D, dual 12-bit D/A, LCD controller/driver (40×4), capacitive touch sensing (12 channels), RTC, and CTSU - deployed in industrial HMI and portable medical devices requiring integrated analog, timing, and human interface functions.

For engineers reviewing the R5F51137AGFP#1A datasheet, R5F51137AGFP#1A pinout, R5F51137AGFP#1A application, or R5F51137AGFP#1A equivalent, this page delivers verified package mapping (100-pin LFQFP, PLQP0100KB-A), validated peripheral counts (7 SCI, 1 USB, 1 RIIC, 1 RSPI, 1 SSI), confirmed low-power specs (0.44 µA software standby), and real-world design constraints including −40 to +105°C operation and 1.8–3.6 V supply range.

Technical Context

The R5F51137AGFP#1A implements a CISC Harvard-architecture RX CPU core with five-stage pipeline, variable-length instructions, and on-chip debugging support. It integrates an Event Link Controller (ELC) enabling direct inter-module triggering without CPU intervention and a Data Transfer Controller (DTC) supporting normal, repeat, and block transfer modes activated by 44 event sources.

Clock management includes a high-speed on-chip oscillator (32 MHz ±1% over −20 to +85°C), PLL input range of 4–8 MHz, sub-clock (32.768 kHz), and dedicated oscillators for USB (6/8 MHz), IWDT (15 kHz), and RTC. Power control supports three low-power modes with 4.8 µs wake-up from software standby and 0.11 mA/MHz active current.

Key Specifications

Pinout & Package

Package: 100-pin LFQFP (PLQP0100KB-A), 14 × 14 mm, 0.5 mm pitch, lead-free (Sn only), RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51137AGFP#1A, the D-grade variant trades thermal margin for lower cost in benign environments, while the R5F51138AGFP#3A provides headroom for complex firmware without changing layout or peripheral integration effort.

Availability

R5F51137AGFP#1A is available at Aetrix Electronics and suitable for industrial HMI, portable medical instrumentation, smart home thermostats, and USB-C enabled sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F51137AGFP#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 RX113 Group targets cost-sensitive, low-power embedded applications needing rich analog integration, human interface features (LCD/CTSU), and USB connectivity - designed specifically for industrial controls and portable medical equipment.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51137AGFP#1A?

The R5F51137AGFP#1A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RX CPU core supports single-cycle 32-bit × 32-bit multiplication, 64-bit accumulator results, and a five-stage pipeline. The R5F51137AGFP#1A achieves this performance across its full −40 to +105°C operating range with no wait states on flash or SRAM access.

Does the R5F51137AGFP#1A support USB On-The-Go functionality?

Yes, the R5F51137AGFP#1A integrates a USB 2.0 host/function module that fully supports On-The-Go (OTG) operation, including ID pin detection (USB0_ID), VBUS sensing (USB0_VBUS), and OTG chip control signals (USB0_EXICEN, USB0_VBUSEN). The R5F51137AGFP#1A also supports Battery Charging (BC) v1.2 detection for compatibility with standard USB chargers.

How many capacitive touch channels does the R5F51137AGFP#1A support, and what package types enable them?

The R5F51137AGFP#1A supports 12 capacitive touch sensing channels via its integrated CTSU, but this feature is only available in the 100-pin packages (LFQFP PLQP0100KB-A and TFLGA PTLG0100JA-A). The R5F51137AGFP#1A uses the PLQP0100KB-A package, confirming full CTSU functionality with dedicated TS0–TS11 pins and on-chip noise cancellation.

What are the low-power consumption specifications for the R5F51137AGFP#1A?

The R5F51137AGFP#1A offers three low-power modes: software standby (0.44 µA typical), deep sleep, and sleep. Recovery from software standby takes 4.8 µs, and active-mode supply current is 0.11 mA/MHz. These values are guaranteed across the −40 to +105°C range. The R5F51137AGFP#1A also includes a low-power timer (LPT) that operates during software standby using the 32.768 kHz sub-clock.

Is the R5F51137AGFP#1A qualified for IEC 60730 Class B compliance?

Yes, the R5F51137AGFP#1A includes hardware features required for IEC 60730 Class B compliance: 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). These capabilities are documented in the R5F51137AGFP#1A datasheet and supported by Renesas application notes for safety-critical appliance control.