Renesas R5F51137AGFM#1A

Overview

R5F51137AGFM#1A from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 384 KB on-chip flash, 64 KB SRAM, and 8 KB data flash. It integrates USB 2.0 full-speed host/function/OTG, 17-channel 12-bit A/D converter, 2-channel 12-bit D/A converter, LCD controller/driver (40×4 segments), capacitive touch sensing unit (CTSU), RTC, and operates from 1.8–3.6 V across –40 to +105°C for industrial HMI and sensor-edge applications.

For engineers reviewing the R5F51137AGFM#1A datasheet, R5F51137AGFM#1A pinout, R5F51137AGFM#1A application, or R5F51137AGFM#1A equivalent, this page delivers verified specifications, package mapping (64-pin LFQFP, PLQP0064KB-A), validated pin functions, real-world use cases, and two confirmed alternative parts with documented functional and application-level differences.

Technical Context

The R5F51137AGFM#1A implements a CISC Harvard-architecture RX CPU core with five-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiply-accumulate operations. Its clock system includes high-speed on-chip oscillator (32 MHz ±1%), PLL, sub-clock (32.768 kHz), and USB-dedicated PLL - all configurable via ICLK/PCLK/FCLK domains.

Peripheral integration centers on event-driven operation: the Event Link Controller (ELC) enables direct module-to-module triggering without CPU intervention, while the Data Transfer Controller (DTC) supports chain transfers triggered by 44 event sources. Low-power operation is enabled by software standby mode (0.44 µA) with 4.8 µs wake-up and LPT running off sub-clock during sleep.

Key Specifications

Pinout & Package

Package: 64-pin LFQFP (PLQP0064KB-A), 10 × 10 mm, 0.5 mm pitch, exposed pad not specified. Pinout validated per Renesas R01DS0216EJ0120 Rev.1.20, Table 1.4 and Figure 1.4 (64-pin assignment).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F51137AGFM#1A, the R5F51137ADFM#3A offers identical functionality at lower temperature rating and cost, while R5F51136AGFM#3A reduces memory capacity without altering pinout or peripheral availability - both preserve full software compatibility and require no hardware redesign.

Availability

R5F51137AGFM#1A is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, medical handhelds, and home appliance control boards requiring stable component supply, extended temperature operation, and long-term lifecycle support.

Supply support for R5F51137AGFM#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 - including R5F51137AGFM#1A - is designed for cost-sensitive, low-power industrial and consumer applications demanding integrated analog, USB, LCD, and touch capabilities in compact packages.

FAQ

What is the maximum operating frequency and CPU performance of the R5F51137AGFM#1A?

The R5F51137AGFM#1A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS (Dhrystone MIPS) performance. Its RX CPU core features a five-stage pipeline, variable-length instruction set, and 64-bit accumulator enabling single-cycle 32×32 multiply-accumulate operations - critical for real-time control and signal processing tasks in the R5F51137AGFM#1A.

Does the R5F51137AGFM#1A support USB On-The-Go (OTG) and Battery Charging (BC) detection?

Yes, the R5F51137AGFM#1A integrates a full-featured USB 2.0 host/function/OTG module supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) operation. It includes hardware-level Battery Charging v1.2 detection (SDP/CDP/DCP) and isochronous transfer support - enabling the R5F51137AGFM#1A to function as either a USB device or host while negotiating charging current with attached sources.

How many analog input channels does the R5F51137AGFM#1A's 12-bit A/D converter support, and what is its minimum conversion time?

The R5F51137AGFM#1A includes a single 12-bit A/D converter with 17 input channels (AN000–AN015 and AN021). At maximum CPU clock (32 MHz), its minimum conversion time is 1.0 µs per channel. The A/D module also supports double-trigger mode for motor control applications and accepts start triggers from software, timers, or external pins - all confirmed in the R5F51137AGFM#1A datasheet.

What LCD configurations does the R5F51137AGFM#1A's built-in controller support, and does it include voltage boosting?

The R5F51137AGFM#1A's LCD controller/driver supports two segment–common configurations: 36 × 8 and 20 × 4. It integrates an on-chip voltage boost circuit, contrast adjustment, and 5 V panel support - eliminating the need for external charge pumps. These capabilities are explicitly defined for the 64-pin variant (R5F51137AGFM#1A) in Table 1.2 of the official datasheet.

Is the R5F51137AGFM#1A qualified for extended temperature operation, and what is its industrial temperature range?

Yes, the R5F51137AGFM#1A is rated for industrial operation from –40 to +105°C (G-grade). This extended temperature range is confirmed in Table 1.3 of the datasheet and applies specifically to part numbers with the "G" suffix like R5F51137AGFM#1A - making it suitable for under-hood automotive modules, factory-floor controllers, and outdoor-rated equipment where thermal robustness is essential.