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Renesas R5F51138AGFM#1A
- Part No.:
- R5F51138AGFM#1A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F51138AGFM#1A.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,862
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Product details
Overview
R5F51138AGFM#1A from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 512 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, dual 12-bit D/A converters, LCD controller/driver (36×8), capacitive touch sensing unit (CTSU), RTC, and operates from 1.8–3.6 V across –40 to +105°C. It targets industrial HMI, portable medical devices, and smart sensor nodes requiring integrated analog, timing, and USB connectivity.
For engineers reviewing the R5F51138AGFM#1A datasheet, R5F51138AGFM#1A pinout, R5F51138AGFM#1A application, or R5F51138AGFM#1A equivalent, this page delivers verified technical context, package-specific pin roles, real-world use cases, and validated alternative MCUs - all grounded in Renesas' official RX113 Group documentation (R01DS0216EJ0120 Rev.1.20).
Technical Context
The R5F51138AGFM#1A implements a CISC Harvard-architecture RX CPU with five-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiply-accumulate operations. Its clock system includes independent PLL, USB-dedicated PLL, IWDT-dedicated 15 kHz oscillator, and CAC for frequency accuracy monitoring.
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 - critical for low-latency sensor acquisition and USB audio streaming in sleep-aware designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC core, 32 MHz max, 50 DMIPS - enables real-time control with deterministic interrupt latency & compact code footprint. |
| Memory | 512 KB flash (no wait states @32 MHz), 64 KB SRAM, 8 KB data flash (1M erase/write cycles) - supports field firmware updates and parameter storage without external EEPROM. |
| USB Interface | USB 2.0 full-speed (12 Mbps) host/function/OTG with BC (Battery Charger) detection - enables direct connection to PCs, peripherals, and charging ports without external PHY. |
| Analog Peripherals | 17-channel 12-bit A/D (1.0 µs conversion), 2-channel 12-bit D/A, 2-channel comparator B, temperature sensor - sufficient for closed-loop motor control and multi-sensor signal conditioning. |
| Timing & Low Power | RTC with calendar mode, LPT running in software standby (0.44 µA), 4.8 µs wake-up - ideal for battery-powered logging and time-stamped event capture. |
| Package & Temp | 64-pin LFQFP (PLQP0064KB-A), 10×10 mm, 0.5 mm pitch, –40 to +105°C - suitable for industrial-grade PCB layouts with thermal reliability. |
| Communication | 7× SCI (with IrDA/Smart Card), 1× I²C (400 kbps), 1× RSPI (16 Mbps), 1× SSI (audio formats), 1× USB - provides flexible wired interface stacking for HMI backplanes. |
Pinout & Package
Package: 64-pin LFQFP (PLQP0064KB-A), 10 × 10 mm body, 0.5 mm pitch, exposed pad not specified - compatible with standard reflow profiles and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC (1.8–3.6 V digital/analog), VSS reference - requires local 100 nF + 4.7 µF decoupling per supply pair. |
| USB0_DP / USB0_DM | USB differential data lines | Integrated full-speed transceiver - no external PHY needed; requires 27 Ω series resistors and 1.5 kΩ pull-up on DP for device mode. |
| AN000–AN015, AN021 | A/D input channels | 17 total analog inputs; AN000–AN015 mapped to P0x/P1x/P2x pins - supports simultaneous sampling via double-trigger mode for motor phase current sensing. |
| DA0 / DA1 | D/A output channels | Two buffered 12-bit outputs (0.35–AVCC−0.47 V range) - usable for programmable biasing, calibration references, or analog waveform generation. |
| MTIOC0A–MTIOC3D | PWM/complementary output pins | 16 dedicated MTU2 waveform pins across 4 timer units - enables 3-phase inverter control with dead-time insertion via POE2. |
| SCI0–SCI9 (e.g., TXD0, RXD0) | Asynchronous serial I/O | 7 SCI channels support UART, SPI, I²C emulation, and IrDA (SCI5 only) - allows concurrent debug, sensor comms, and legacy protocol bridging. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive Touch Sensing Unit (CTSU) | 12-channel self/mutual capacitance sensing with on-chip noise canceller - enables robust touch buttons/sliders on 64-pin variant despite pin count constraint. |
| Event Link Controller (ELC) | Direct hardware linking of 44 event sources (e.g., timer overflow → ADC start → DTC transfer) - eliminates CPU polling and reduces active time in low-power modes. |
| Background Operation (BGO) | Data flash erase/write during program execution - permits seamless firmware updates and runtime parameter logging without halting application logic. |
| Multi-function Pin Controller (MPC) | Per-pin peripheral function selection (e.g., P10 can be SCI0_TXD, MTU0_TIOCA, or GPIO) - simplifies PCB routing and enables late-stage interface reassignment. |
| IEC 60730 Support | On-chip CAC, IWDT, RAM test assist - reduces certification effort for Class B safety-compliant appliances and industrial controls. |
Applications
| Industrial HMI Panel | Portable Medical Monitor |
|---|---|
|
Use Scenario: Compact touchscreen display with real-time vital sign visualization, USB data export, and battery-backed logging. IC Role / Device Role / Timing Role: Main application MCU handling LCD driving (36×8), capacitive touch decoding, USB mass storage class, and RTC timestamping. Use Value: Integrated CTSU and LCD driver eliminate external touch controller and display IC; USB OTG enables plug-and-play PC sync without host negotiation overhead. |
Use Scenario: Battery-powered pulse oximeter with analog front-end, OLED display, and USB configuration interface. IC Role / Device Role / Timing Role: Signal processor acquiring ADC samples from photodiode/LED drivers, computing SpO₂, updating display, and managing USB CDC communication. Use Value: 1.0 µs ADC conversion and double-trigger mode ensure accurate synchronous sampling of AC/DC photoplethysmogram signals; 0.44 µA software standby extends battery life between readings. |
| Smart Sensor Node | USB-C Powered IoT Gateway |
|
Use Scenario: Environmental sensor hub aggregating temperature, humidity, and gas readings, then transmitting via USB to edge gateway. IC Role / Device Role / Timing Role: Sensor fusion MCU with 12-bit A/D, temperature sensor, I²C master for digital sensors, and USB device interface. Use Value: On-chip temperature sensor calibrated against 12-bit A/D reference enables drift-compensated measurements; USB BC detection identifies charger type for optimized power management. |
Use Scenario: USB-C powered industrial gateway translating Modbus RTU over RS485 to USB CDC ACM for cloud telemetry. IC Role / Device Role / Timing Role: Protocol bridge MCU using SCI12 (SCIf) for RS485 half-duplex control and USB0 for host-facing virtual COM port. Use Value: SCIf's start-frame detection and information-frame framing simplify Modbus CRC handling; USB OTG ID pin detection enables automatic host/peripheral role switching when connected to USB-C PD source. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51138ADFM#3A | Same core, flash, RAM, and peripherals, but rated for –40 to +85°C (vs. +105°C); identical 64-pin LFQFP package. | Targeted at commercial/indoor environments where extended temperature is unnecessary. | Select when ambient operating temperature remains below +85°C and cost optimization is prioritized. |
| R5F51136AGFM#3A | 256 KB flash / 32 KB RAM (vs. 512 KB / 64 KB); otherwise identical peripheral set, package, and temperature rating. | Suitable for simpler firmware with smaller memory footprint, e.g., basic sensor node without local UI or logging. | Choose when application code size and data buffers fit within 256 KB flash and 32 KB RAM to reduce BOM cost. |
Compared with R5F51138AGFM#1A, R5F51138ADFM#3A trades extended temperature for lower cost without peripheral loss, while R5F51136AGFM#3A reduces memory capacity by 50% to serve leaner firmware - both retain full pin and functional compatibility for drop-in layout reuse.
Availability
R5F51138AGFM#1A is available at Aetrix Electronics and suitable for industrial HMI, portable medical monitors, and smart sensor nodes requiring stable component supply, long-term lifecycle assurance, and automotive-qualified thermal performance.
Supply support for R5F51138AGFM#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, and power solutions for industrial, automotive, and enterprise applications.
The RX113 Group is designed for cost-sensitive, low-power embedded systems needing rich analog integration, USB connectivity, and capacitive touch - targeting HMI, sensor hubs, and portable instrumentation.
FAQ
What is the maximum operating frequency and CPU performance of the R5F51138AGFM#1A?
The R5F51138AGFM#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, 64-bit accumulator, and single-cycle 32×32 multiplication - enabling deterministic real-time execution for control loops and signal processing tasks within the R5F51138AGFM#1A.
Does the R5F51138AGFM#1A support USB On-The-Go (OTG) functionality?
Yes, the R5F51138AGFM#1A integrates a USB 2.0 full-speed host/function/OTG module compliant with USB specification 2.0. It supports BC (Battery Charger) detection, isochronous transfers, and uses the USB0_ID pin to determine host/peripheral role in OTG mode - all implemented with an on-chip transceiver, eliminating external PHY components in the R5F51138AGFM#1A design.
What analog peripherals are included in the R5F51138AGFM#1A?
The R5F51138AGFM#1A includes a 17-channel 12-bit A/D converter (1.0 µs min conversion time), two 12-bit D/A converters, two comparator B channels, an integrated temperature sensor, and a capacitive touch sensing unit (CTSU) with 12 detection channels. These are fully supported in the 64-pin LFQFP package and directly accessible via dedicated pins in the R5F51138AGFM#1A.
What is the operating temperature range and package type of the R5F51138AGFM#1A?
The R5F51138AGFM#1A is qualified for operation from –40 to +105°C and housed in a 64-pin LFQFP package (PLQP0064KB-A), measuring 10 × 10 mm with 0.5 mm pitch. This industrial-grade temperature range and compact QFP form factor make it suitable for demanding environments where thermal reliability and board space efficiency are critical in the R5F51138AGFM#1A implementation.
How does the R5F51138AGFM#1A manage low-power operation?
The R5F51138AGFM#1A offers three low-power modes including software standby with 0.44 µA typical current draw and 4.8 µs wake-up time. It features a low-power timer (LPT) that runs during standby using the sub-clock oscillator, plus module stop control and operating power modes (high/middle/low speed). These capabilities are fully documented for the R5F51138AGFM#1A in Renesas' RX113 Group datasheet R01DS0216EJ0120.
R5F51138AGFM#1A 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:
- 512KB (512K 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:
R5F51138AGFM#1A FAQ
1.How can I place an order for R5F51138AGFM#1A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51138AGFM#1A 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 R5F51138AGFM#1A reliable?
The price and inventory of R5F51138AGFM#1A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51138AGFM#1A is usually 5 days.
3.What payment methods are accepted for R5F51138AGFM#1A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51138AGFM#1A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51138AGFM#1A?
R5F51138AGFM#1A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51138AGFM#1A 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 R5F51138AGFM#1A?
For technical support, including R5F51138AGFM#1A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51138AGFM#1A requirements.
6.How does Aetrix verify that R5F51138AGFM#1A is sourced from the original manufacturer or authorized distributors?
All R5F51138AGFM#1A 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 R5F51138AGFM#1A meets industry standards.
7.What is the process for return or replacement of R5F51138AGFM#1A?
All R5F51138AGFM#1A units undergo pre-shipment inspection (PSI). If there is an issue with R5F51138AGFM#1A, 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 R5F51138AGFM#1A part is unused and in its original packaging.
Return procedure for R5F51138AGFM#1A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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