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Renesas R5F51138AGFM#3A
- Part No.:
- R5F51138AGFM#3A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F51138AGFM#3A.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:160
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Product details
Overview
R5F51138AGFM#3A 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, 8 KB data flash, USB 2.0 full-speed host/function/OTG, and integrated capacitive touch sensing (CTSU) - designed for industrial HMI, smart sensors, and USB-connected embedded control systems.
For engineers reviewing the R5F51138AGFM#3A datasheet, R5F51138AGFM#3A pinout, R5F51138AGFM#3A application, or R5F51138AGFM#3A equivalent, this page delivers verified specifications, package mapping to PLQP0064KB-A (64-pin LFQFP), validated pin functions, real-world use cases, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The R5F51138AGFM#3A implements a CISC Harvard-architecture RX core with five-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiply-accumulate operations. It integrates an Event Link Controller (ELC) enabling direct inter-module triggering without CPU intervention, and a Data Transfer Controller (DTC) supporting chain transfers across four modes.
Its clock system includes independent PLL, USB-dedicated PLL, IWDT-dedicated 15 kHz oscillator, and Clock Accuracy Measurement (CAC) circuit - all configurable for IEC 60730 compliance. The device supports three low-power modes, with software standby consuming just 0.44 µA and 4.8 µs wake-up time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard, 32 MHz max, 50 DMIPS @32 MHz |
| Memory | 512 KB flash (no wait states), 64 KB SRAM, 8 KB data flash (1M erase/write cycles) |
| USB Interface | USB 2.0 full-speed (12 Mbps) host/function/OTG with BC support and isochronous transfer |
| Analog Peripherals | 17-channel 12-bit ADC (1.0 µs min conversion), 2-channel 12-bit DAC, 2-channel comparator B, temperature sensor |
| Timers & Control | 6×16-bit MTU channels, 4×8-bit TMR, 4×16-bit CMT, RTC with calendar mode, LPT running in software standby |
| Communication | 7×SCI (async/clock-sync/smart card), 1×I²C (400 kbps), 1×RSPI (16 Mbps), 1×SSI, IrDA via SCI5 |
| Special Functions | Capacitive touch sensing unit (CTSU) with 12-channel support (in 100-pin variants only), LCD controller (36×8), CRC calculator |
Pinout & Package
Package: PLQP0064KB-A - 64-pin Low-Profile Quad Flat Package, 10 × 10 mm body, 0.5 mm pitch, exposed pad (non-thermal).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Main digital power domain (1.8–3.6 V); requires local decoupling per Renesas layout guidelines |
| AVCC0 / AVSS0 | Analog power / Analog ground | Dedicated supply for 12-bit ADC/DAC; must be isolated from digital noise sources |
| USB0_DP / USB0_DM | USB differential data pair | On-chip full-speed transceiver; requires 90 Ω differential impedance routing and ESD protection |
| AN000–AN015, AN021 | Analog input channels | 17 total ADC inputs; AN021 is dedicated high-precision channel with internal reference path |
| DA0 / DA1 | Analog output channels | Two independent 12-bit DAC outputs; voltage range 0.35 V to AVCC – 0.47 V |
| MTIOC0A–MTIOC5D | PWM/complementary output pins | Supports phase-counting, reset-synchronous PWM, and A/D trigger generation for motor control |
| SCI0–SCI9, SCI12 | Serial communication interfaces | 7 SCI channels (SCI0,1,2,5,6,8,9) + 1 SCIf channel (SCI12); each supports async, clock-sync, and simple I²C/SPI |
| P02–PJ7 | General-purpose I/O | 46 GPIOs total; 5-V tolerant, open-drain capable, with pull-up resistors on 41 pins |
Key Features
| Feature | Design Value |
|---|---|
| IEC 60730 Support | Integrated CAC, IWDT, RAM test assist, and clock monitoring - enables Class B safety certification without external components |
| Low-Power Operation | Software standby mode draws only 0.44 µA while maintaining RTC and LPT operation; 4.8 µs wake-up to full-speed execution |
| Background Data Flash Programming | BGO (Background Operation) allows code execution during 8 KB data flash erase/write - critical for firmware updates in field-deployed devices |
| Event-Driven Architecture | ELC links 44 event sources directly to peripherals (e.g., timer overflow → ADC start), eliminating interrupt latency and CPU load |
| USB OTG Flexibility | Single-port USB module supports host, function, and On-The-Go modes with battery charger detection (BC 1.2) and VBUS monitoring |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Standalone touch-enabled display panel for factory equipment monitoring with local data logging and USB configuration interface. IC Role / Device Role / Timing Role: Main system controller handling capacitive touch decoding, LCD driving (36×8), USB device enumeration, and real-time data acquisition via 17-channel ADC. Use Value: Integrated CTSU eliminates external touch controller; USB OTG enables field firmware updates and parameter configuration without host PC dependency. |
Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity (via I²C), and analog gas concentration, transmitting data over USB or SCI to gateway. IC Role / Device Role / Timing Role: System-on-chip managing ultra-low-power sleep/wake cycles, precision analog measurement (12-bit ADC + temp sensor), and USB/SCI dual-mode connectivity. Use Value: 0.44 µA software standby current extends battery life; on-chip 15 kHz IWDT oscillator ensures reliable watchdog operation without external crystal. |
| USB Human Interface Device | Motor Control Interface |
Use Scenario: Programmable USB HID device (e.g., custom keyboard, industrial jog wheel) with tactile feedback and local logic processing. IC Role / Device Role / Timing Role: USB function controller with HID descriptor handling, GPIO scanning, and optional DAC-driven audio feedback or LED dimming. Use Value: Full-speed USB 2.0 stack support and built-in transceiver reduce BOM cost; 5-V tolerant I/O simplifies connection to mechanical switches and LEDs. |
Use Scenario: Compact BLDC motor driver interface board accepting analog setpoints and generating complementary PWM waveforms with dead-time control. IC Role / Device Role / Timing Role: Real-time PWM generator using MTU2's complementary output mode, synchronized ADC sampling (double-trigger), and fault monitoring via comparator B. Use Value: Hardware-accelerated phase counting and reset-synchronous PWM eliminate CPU overhead; comparator B provides fast overcurrent shutdown (<1 µs response). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51138ADFM#3A | Same core, memory, and peripheral set; rated for −40 to +85°C (vs. R5F51138AGFM#3A's −40 to +105°C) | Suitable for commercial/industrial environments without extended thermal stress; lower qualification cost | Select when ambient operating temperature remains ≤85°C and cost sensitivity outweighs extended temp margin |
| R5F51137AGFM#3A | 384 KB flash (vs. 512 KB), same 64 KB SRAM, identical package and temperature rating (−40 to +105°C) | Fits applications requiring smaller firmware footprint; retains full peripheral complement including USB, CTSU, and ADC | Choose when application code size fits within 384 KB and flash headroom is not required for future feature expansion |
Compared with R5F51138AGFM#3A, R5F51138ADFM#3A trades extended temperature capability for lower cost, while R5F51137AGFM#3A reduces flash capacity without compromising peripheral functionality or thermal rating - both maintain pin compatibility and identical 64-pin LFQFP footprint.
Availability
R5F51138AGFM#3A is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, and USB-connected embedded controllers requiring stable component supply, long-term lifecycle assurance, and automotive-grade thermal resilience.
Supply support for R5F51138AGFM#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, power, and SoC solutions for industrial, automotive, and IoT applications.
The RX113 Group - including R5F51138AGFM#3A - was designed for cost-sensitive, low-power embedded systems requiring USB connectivity, capacitive touch, and functional safety support (IEC 60730).
FAQ
What is the maximum operating frequency and CPU performance of the R5F51138AGFM#3A?
The R5F51138AGFM#3A 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 motor control and sensor fusion tasks. This performance level is sustained across its full −40 to +105°C operating range.
Does the R5F51138AGFM#3A support capacitive touch sensing, and how many channels are available?
The R5F51138AGFM#3A includes a Capacitive Touch Sensing Unit (CTSU), but channel availability depends on package: the 64-pin PLQP0064KB-A variant (R5F51138AGFM#3A) does not support CTSU. Only the 100-pin versions (e.g., R5F51138AGFP#3A) provide 12 CTSU channels. This is explicitly confirmed in Table 1.2 of the datasheet under "Capacitive touch sensing unit".
What USB capabilities does the R5F51138AGFM#3A offer, and is external PHY required?
The R5F51138AGFM#3A integrates a full-speed USB 2.0 transceiver and controller supporting host, function, and OTG modes - no external PHY is needed. It supports BC 1.2 battery charging detection, isochronous transfers, and VBUS monitoring via USB0_VBUS. The USB0_DP/DM pins connect directly to the USB connector with appropriate ESD protection and impedance-controlled routing.
What are the power supply requirements and low-power modes supported by the R5F51138AGFM#3A?
The R5F51138AGFM#3A operates from a single 1.8–3.6 V supply, with current draw of 3.6 mA at 32 MHz (typ). It supports three low-power modes: Sleep, Deep Sleep, and Software Standby - the latter consumes just 0.44 µA while keeping RTC and LPT active, with 4.8 µs wake-up time. Voltage detection circuits (LVDA) provide programmable brown-out protection.
Is the R5F51138AGFM#3A pin-compatible with other RX113 Group MCUs in the same package?
Yes - all RX113 Group MCUs in the PLQP0064KB-A (64-pin LFQFP) package, including R5F51138AGFM#3A, R5F51138ADFM#3A, and R5F51137AGFM#3A, share identical pinouts and electrical characteristics. Firmware and PCB layouts are interchangeable across these variants, differing only in flash capacity (512 KB vs. 384 KB) and temperature grade (−40 to +105°C vs. −40 to +85°C).
R5F51138AGFM#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:
- 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#3A FAQ
1.How can I place an order for R5F51138AGFM#3A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51138AGFM#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 R5F51138AGFM#3A reliable?
The price and inventory of R5F51138AGFM#3A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51138AGFM#3A is usually 5 days.
3.What payment methods are accepted for R5F51138AGFM#3A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51138AGFM#3A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51138AGFM#3A?
R5F51138AGFM#3A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51138AGFM#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 R5F51138AGFM#3A?
For technical support, including R5F51138AGFM#3A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51138AGFM#3A requirements.
6.How does Aetrix verify that R5F51138AGFM#3A is sourced from the original manufacturer or authorized distributors?
All R5F51138AGFM#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 R5F51138AGFM#3A meets industry standards.
7.What is the process for return or replacement of R5F51138AGFM#3A?
All R5F51138AGFM#3A units undergo pre-shipment inspection (PSI). If there is an issue with R5F51138AGFM#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 R5F51138AGFM#3A part is unused and in its original packaging.
Return procedure for R5F51138AGFM#3A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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