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Renesas R5F51137AGFM#3A
- Part No.:
- R5F51137AGFM#3A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F51137AGFM#3A.pdf
- Description:
- IC MCU 32BIT 384KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:160
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Product details
Overview
R5F51137AGFM#3A 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, 12-bit A/D (17 channels), 12-bit D/A (2 channels), RTC, LCD controller (40×4), and capacitive touch sensing (CTSU) - designed for embedded human-interface and industrial control applications requiring integrated analog, timing, and connectivity.
For engineers reviewing the R5F51137AGFM#3A datasheet, R5F51137AGFM#3A pinout, R5F51137AGFM#3A application, or R5F51137AGFM#3A equivalent, this MCU delivers verified low-power operation (0.44 µA software standby), high-precision clocking (32 MHz ±1% on-chip oscillator), and hardware-accelerated peripherals including ELC, DTC, and CAC - critical for deterministic real-time response in battery-powered and safety-aware systems.
Technical Context
The R5F51137AGFM#3A implements a CISC Harvard architecture with five-stage pipeline and variable-length instructions, enabling ultra-compact code and single-cycle 32×32-bit multiply. Its event link controller (ELC) enables direct inter-module triggering without CPU intervention, supporting low-latency sensor-to-actuator paths during sleep modes.
On-chip clock generation includes independent PLL, USB-dedicated PLL, IWDT-dedicated 15 kHz oscillator, and CAC for real-time frequency accuracy monitoring. The 12-bit A/D converter supports double-trigger mode for motor control, while the CTSU provides 12-channel capacitive touch detection with built-in noise cancellation - both validated for operation across −40°C to +105°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard, 32 MHz max, 50 DMIPS - enables deterministic real-time execution with minimal code footprint |
| Memory | 384 KB flash (no wait states at 32 MHz), 64 KB SRAM, 8 KB data flash (1M erase/write cycles) - supports field firmware updates and data logging |
| USB Interface | USB 2.0 full-speed (12 Mbps) host/function/OTG with BC support - enables direct peripheral attachment and battery charging negotiation |
| Analog Peripherals | 12-bit A/D (17 ch, 1.0 µs conversion), 12-bit D/A (2 ch), 2× comparator B, temperature sensor - suitable for closed-loop analog control |
| Low-Power Modes | Software standby (0.44 µA), recovery in 4.8 µs - allows rapid wake-up from deep sleep for sensor polling or interrupt-driven events |
| Operating Range | −40°C to +105°C, 1.8–3.6 V supply - qualified for extended-temperature industrial and automotive under-hood environments |
| Package | 64-pin LFQFP (PLQP0064KB-A), 10 × 10 mm, 0.5 mm pitch - compatible with standard surface-mount assembly and thermal management |
Pinout & Package
64-pin LFQFP (PLQP0064KB-A), 10 × 10 mm body, 0.5 mm pitch, exposed pad optional per Renesas design guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: digital (VCC/VSS) and analog (AVCC0/AVSS0) - require separate decoupling for noise-sensitive ADC/DAC operation |
| USB0_DP / USB0_DM | USB differential data pair | Integrated full-speed transceiver with internal termination - eliminates external resistors and simplifies USB layout |
| AN000–AN015, AN021 | A/D input channels | 17 dedicated analog inputs with selectable reference (VREFH0/VREFL0) - supports ratiometric sensing and precision voltage measurement |
| DA0 / DA1 | D/A output channels | Two buffered 12-bit outputs (0.35–AVCC–0.47 V range) - enable analog waveform generation or bias control without external DAC |
| MTIOC0A–MTIOC5D | PWM/complementary output pins | 16-channel MTU2 timer I/O with phase counting and complementary PWM - supports three-phase motor control and LED dimming |
| TS0–TS11 | Capacitive touch sense inputs | 12 dedicated CTSU pins with self/mutual capacitance support - enables robust touch buttons/sliders with on-chip noise cancellation |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Direct hardware linking of 44 event sources (e.g., timer overflow → ADC trigger) - eliminates CPU overhead and interrupt latency in time-critical sequences |
| Data Transfer Controller (DTC) | Four transfer modes with chain capability - enables autonomous memory-to-peripheral transfers (e.g., ADC → SRAM) without CPU involvement |
| Capacitive Touch Sensing Unit (CTSU) | 12-channel detection with on-chip noise canceller and mutual capacitance mode - achieves >99% touch reliability in noisy industrial environments |
| Clock Accuracy Measurement (CAC) | Real-time monitoring of main clock deviation against sub-clock reference - supports IEC 60730 Class B compliance for functional safety |
| USB Battery Charging (BC) | Detection and negotiation of USB wall adapters (SDP, CDP, DCP) - enables fast charging awareness in portable devices |
Applications
| Industrial HMI Panel | Smart Thermostat |
|---|---|
|
Use Scenario: Wall-mounted HVAC interface with touch controls, local display, and USB configuration port. IC Role / Device Role / Timing Role: Main system controller managing CTSU touch input, LCD driver (36×8), RTC calendar, and USB OTG for firmware updates. Use Value: Integrated CTSU and LCD eliminate external touch controller and display driver ICs; USB OTG enables field reprogramming without disassembly. |
Use Scenario: Battery-powered residential thermostat with ambient temperature sensing, relay control, and BLE gateway via USB host. IC Role / Device Role / Timing Role: Primary MCU handling 12-bit A/D (temperature sensor), 12-bit D/A (valve control), RTC alarm scheduling, and USB host for BLE module communication. Use Value: Software standby current of 0.44 µA extends battery life to >2 years; on-chip temperature sensor reduces BOM cost and calibration complexity. |
| Programmable Logic Controller (PLC) I/O Module | Medical Infusion Pump Controller |
|
Use Scenario: DIN-rail mounted I/O expansion module with analog input/output, digital I/O, and USB diagnostics port. IC Role / Device Role / Timing Role: Real-time I/O processor using DTC for autonomous ADC acquisition and MTU2 for precise PWM valve control. Use Value: DTC offloads ADC sampling and buffering from CPU, freeing resources for Modbus RTU protocol stack execution at 32 MHz. |
Use Scenario: Safety-critical infusion pump with motor control, pressure sensing, and USB host for clinical data export. IC Role / Device Role / Timing Role: Functional safety controller implementing IEC 60730-compliant watchdog (IWDT), clock monitoring (CAC), and RAM test assist functions. Use Value: Dual independent watchdogs (IWDT + voltage monitor) and CAC provide redundant timing supervision required for Class II medical device certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51137ADFM#3A | Same core, package, and peripherals; rated for −40°C to +85°C (vs. +105°C for R5F51137AGFM#3A) | Suitable for commercial/industrial environments without extended temperature requirements | Select when operating ambient stays below +85°C to reduce cost; identical pinout and firmware compatibility |
| R5F51138AGFM#3A | 512 KB flash / 64 KB SRAM (vs. 384 KB / 64 KB); otherwise identical architecture, package, and peripheral set | Required for larger firmware images or extensive data logging buffers | Choose when application firmware exceeds 384 KB or requires additional non-volatile parameter storage beyond 8 KB data flash |
Compared with R5F51137AGFM#3A, the R5F51137ADFM#3A offers identical functionality at lower temperature grade, reducing cost where thermal margin permits; the R5F51138AGFM#3A adds 128 KB flash for complex protocol stacks or OTA update partitions - both retain full pin and code compatibility.
Availability
R5F51137AGFM#3A is available at Aetrix Electronics and suitable for industrial HMI panels, smart thermostats, PLC I/O modules, and medical infusion pumps requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F51137AGFM#3A 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, and power solutions for industrial, automotive, and IoT markets.
The RX113 Group, including R5F51137AGFM#3A, was designed for cost-sensitive, low-power embedded applications requiring rich analog integration, USB connectivity, and capacitive touch - targeting human-machine interfaces and intelligent edge sensors.
FAQ
What is the maximum operating frequency and CPU performance of the R5F51137AGFM#3A?
The R5F51137AGFM#3A 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 set, and single-cycle 32×32-bit multiplication - enabling efficient execution of real-time control algorithms and communication stacks without performance bottlenecks.
Does the R5F51137AGFM#3A support USB On-The-Go (OTG) functionality?
Yes, the R5F51137AGFM#3A integrates a USB 2.0 full-speed host/function/OTG module compliant with USB 2.0 specification. It supports isochronous transfers, battery charging (BC) detection, and mini-AB ID pin sensing - allowing the same R5F51137AGFM#3A device to act as USB host (e.g., for BLE dongles) or peripheral (e.g., for PC configuration) depending on runtime mode.
What analog peripherals are integrated into the R5F51137AGFM#3A?
The R5F51137AGFM#3A includes a 12-bit A/D converter with 17 input channels (1.0 µs conversion time), two 12-bit D/A converters, two comparator B units, an on-chip temperature sensor, and a capacitive touch sensing unit (CTSU) with 12 detection channels. These are fully supported in the −40°C to +105°C operating range and share dedicated analog power domains (AVCC0/AVSS0).
How does the R5F51137AGFM#3A achieve low-power operation in battery-powered applications?
The R5F51137AGFM#3A achieves ultra-low-power operation with a software standby mode consuming just 0.44 µA and 4.8 µs wake-up time. It also features a low-power timer (LPT) that runs during standby using the 32.768 kHz sub-clock, enabling periodic sensor polling without waking the CPU - critical for extending battery life in remote sensors and portable medical devices.
Is the R5F51137AGFM#3A qualified for industrial temperature operation?
Yes, the R5F51137AGFM#3A is rated for operation from −40°C to +105°C (G-grade). This extended temperature range is validated across all integrated peripherals - including the 32 MHz ±1% on-chip oscillator, CTSU, LCD controller, and USB transceiver - making it suitable for deployment in harsh industrial enclosures, automotive under-hood modules, and outdoor equipment.
R5F51137AGFM#3A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RX
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RX
- Core Size:
- 32-Bit
- Speed:
- 32MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, SSI, USB OTG
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 46
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 11x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51137AGFM#3A FAQ
1.How can I place an order for R5F51137AGFM#3A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51137AGFM#3A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F51137AGFM#3A reliable?
The price and inventory of R5F51137AGFM#3A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51137AGFM#3A is usually 5 days.
3.What payment methods are accepted for R5F51137AGFM#3A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51137AGFM#3A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51137AGFM#3A?
R5F51137AGFM#3A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51137AGFM#3A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F51137AGFM#3A?
For technical support, including R5F51137AGFM#3A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51137AGFM#3A requirements.
6.How does Aetrix verify that R5F51137AGFM#3A is sourced from the original manufacturer or authorized distributors?
All R5F51137AGFM#3A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F51137AGFM#3A meets industry standards.
7.What is the process for return or replacement of R5F51137AGFM#3A?
All R5F51137AGFM#3A units undergo pre-shipment inspection (PSI). If there is an issue with R5F51137AGFM#3A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F51137AGFM#3A part is unused and in its original packaging.
Return procedure for R5F51137AGFM#3A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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