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Renesas R5F51137ADFP#3A
- Part No.:
- R5F51137ADFP#3A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F51137ADFP#3A.pdf
- Description:
- IC MCU 32BIT 384KB FLSH 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,230
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Product details
Overview
R5F51137ADFP#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, 17-channel 12-bit A/D converter, 2-channel 12-bit D/A converter, LCD controller/driver (40×4 SEG/COM), capacitive touch sensing unit (12 channels), and RTC - deployed in industrial HMI, portable medical devices, and smart sensor nodes.
For engineers reviewing the R5F51137ADFP#3A datasheet, R5F51137ADFP#3A pinout, R5F51137ADFP#3A application, or R5F51137ADFP#3A equivalent, key selection criteria include USB OTG support with BC charging, low-power software standby mode (0.44 µA), 1.0 µs A/D conversion time, CTSU-based touch interface, and 100-pin LFQFP package compatibility with IEC 60730 safety-critical firmware validation.
Technical Context
The R5F51137ADFP#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. Its clock system includes independent PLL, USB-dedicated PLL, IWDT oscillator (15 kHz), and CAC circuit for real-time 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 across four modes triggered by 44 event sources - critical for deterministic low-latency sensor-to-memory or USB-to-DAC streaming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard, 32 MHz max, 50 DMIPS @32 MHz - enables real-time control with ultra-compact code density |
| Memory | 384 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 |
| USB Interface | USB 2.0 full-speed (12 Mbps) host/function/OTG with BC 1.2 charger detection - enables direct peripheral attachment and battery-powered device charging |
| A/D & D/A | 17-channel 12-bit A/D (1.0 µs min conversion), 2-channel 12-bit D/A (0.35–AVCC−0.47 V output) - suitable for motor current sensing and analog actuator control |
| Low-Power Modes | Software standby mode: 0.44 µA, 4.8 µs wake-up - extends battery life in always-on sensor endpoints |
| Capacitive Touch | CTSU with 12 detection pins, self/mutual capacitance, on-chip noise canceller - delivers robust touch performance in noisy industrial environments |
| Operating Range | 1.8–3.6 V supply, −40 to +85°C (D-grade), 100-pin LFQFP (PLQP0100KB-A, 14×14 mm, 0.5 mm pitch) - compatible with standard SMT assembly |
Pinout & Package
Package: PLQP0100KB-A, 100-pin Low-Profile Quad Flat Package (LFQFP), 14 × 14 mm body, 0.5 mm pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual-domain power: VCC (digital core), VCC_USB (isolated USB PHY), AVCC0/AVSS0 (analog domain) - enables clean signal integrity for mixed-signal operation |
| USB0_DP / USB0_DM | USB differential data pair | Integrated full-speed transceiver with on-chip termination - eliminates external resistors and reduces BOM count |
| AN000–AN015, AN021 | Analog input channels | 17 dedicated A/D inputs with selectable reference (VREFH0/VREFL0) - supports ratiometric sensor interfacing and precision measurement |
| DA0 / DA1 | Analog output channels | Two buffered 12-bit D/A outputs with independent voltage range - drives analog actuators or calibration references without external DACs |
| TS0–TS11 | Capacitive touch sense inputs | 12 dedicated CTSU pins with programmable scan timing and noise suppression - enables slider, wheel, and multi-button touch panels |
| SEG00–SEG39 / COM0–COM7 | LCD segment/common drivers | Direct drive for 40×4 or 36×8 segment LCDs with internal boost and contrast control - eliminates external LCD bias IC |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | 44 event sources directly link peripherals (e.g., MTU→A/D trigger) without CPU overhead - enables ultra-low-jitter deterministic timing |
| Data Transfer Controller (DTC) | Four transfer modes with chain capability activated by interrupts - offloads CPU during high-bandwidth USB or RSPI data movement |
| IEC 60730 Support | On-chip CAC, IWDT, RAM test assist, and clock fail detection - simplifies Class B safety certification for household appliances |
| RTC with Calendar Mode | Leap-year correction, alarm/periodic interrupts, and software-standby wake-up - enables time-stamped logging and scheduled low-power wake events |
| Multi-Function Timers (MTU2) | Six 16-bit channels with complementary PWM, phase counting, and input capture - supports BLDC motor commutation and encoder position tracking |
Applications
| Industrial HMI Panel | Portable Medical Monitor |
|---|---|
|
Use Scenario: Standalone touchscreen display with real-time vital sign visualization and local data logging. IC Role / Device Role / Timing Role: Main controller executing GUI rendering, capacitive touch decoding, LCD driving, and USB mass-storage export of patient records. Use Value: Integrated CTSU, LCD driver, and USB OTG eliminate discrete touch controller and display interface ICs - reducing layer count and EMI risk in compact enclosures. |
Use Scenario: Battery-powered pulse oximeter with analog front-end, OLED/LCD display, and USB reprogramming capability. IC Role / Device Role / Timing Role: Signal processor acquiring ADC samples, computing SpO₂ saturation, managing low-power sleep cycles, and enabling firmware updates via USB. Use Value: 0.44 µA software standby current and 4.8 µs wake-up enable >1-week battery life between charges - critical for clinical portability. |
| Smart Sensor Node | Home Appliance Control |
|
Use Scenario: Wireless environmental sensor hub collecting temperature, humidity, and air quality data for cloud upload. IC Role / Device Role / Timing Role: Central MCU aggregating analog sensor inputs (via 12-bit A/D), running sensor fusion algorithms, and managing USB/RSPI communication to gateway modules. Use Value: 1.0 µs A/D conversion and double-trigger mode support precise motor current sampling for predictive maintenance analytics. |
Use Scenario: Washing machine main control board requiring safety-certified motor control, user interface, and energy monitoring. IC Role / Device Role / Timing Role: Safety-critical controller executing IEC 60730-compliant diagnostics, driving triac/relay outputs, and managing touch UI with real-time fault response. Use Value: On-chip CAC, IWDT, and RAM test assist reduce external safety components - accelerating Class B certification for white goods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51138ADFP#3A | 512 KB flash, 64 KB SRAM, same package/peripherals - adds 128 KB program memory headroom | Preferred where field-upgradable firmware requires larger code space or dual-bank bootloading | Select when future firmware growth or secure bootloader partitioning is required; identical pinout and peripheral set. |
| R5F51137AGFP#3A | Same memory/config, but −40 to +105°C extended temperature grade | Required for under-hood automotive or industrial enclosure deployments above 85°C ambient | Choose for thermal harsh environments; otherwise, R5F51137ADFP#3A suffices for commercial/industrial indoor use. |
Compared with R5F51137ADFP#3A, R5F51138ADFP#3A provides scalable code storage without peripheral trade-offs, while R5F51137AGFP#3A delivers guaranteed operation at elevated temperatures - both retain identical pinout, clock architecture, and safety feature set.
Availability
R5F51137ADFP#3A is available at Aetrix Electronics and suitable for industrial HMI, portable medical monitors, smart sensor nodes, and home appliance control systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F51137ADFP#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 markets.
The RX113 Group targets cost-sensitive, low-power embedded applications demanding rich analog integration, USB connectivity, and functional safety - designed specifically for human-machine interfaces and intelligent edge sensors.
FAQ
What is the maximum operating frequency and CPU performance of the R5F51137ADFP#3A?
The R5F51137ADFP#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 multiply-accumulate capability - enabling deterministic real-time execution for motor control and sensor processing tasks within the R5F51137ADFP#3A.
Does the R5F51137ADFP#3A support USB On-The-Go (OTG) functionality?
Yes, the R5F51137ADFP#3A integrates a USB 2.0 full-speed host/function/OTG module compliant with USB 2.0 specification, supporting 12 Mbps data transfer, BC 1.2 battery charging detection, and isochronous transfers. The R5F51137ADFP#3A uses dedicated USB DP/DM pins and on-chip transceivers - no external PHY required.
What are the memory resources available on the R5F51137ADFP#3A?
The R5F51137ADFP#3A includes 384 KB of on-chip flash memory (executed with zero wait states at 32 MHz), 64 KB of SRAM, and 8 KB of data flash rated for 1,000,000 erase/write cycles. All memory blocks operate without wait states at maximum CPU speed, and the R5F51137ADFP#3A supports in-system programming via USB or asynchronous serial interface.
How does the capacitive touch sensing unit (CTSU) function in the R5F51137ADFP#3A?
The R5F51137ADFP#3A integrates a dedicated Capacitive Touch Sensing Unit (CTSU) supporting up to 12 touch channels using self- or mutual-capacitance methods. It includes an on-chip noise canceller and programmable scan parameters - enabling robust touch button/slider/wheel operation in electrically noisy environments without external components. This CTSU is fully implemented in the R5F51137ADFP#3A's 100-pin variant.
What low-power modes are supported by the R5F51137ADFP#3A, and what are their key characteristics?
The R5F51137ADFP#3A supports three low-power modes: Sleep, Deep Sleep, and Software Standby. In Software Standby mode, it draws only 0.44 µA and wakes in 4.8 µs - ideal for battery-powered endpoints. The R5F51137ADFP#3A also includes a Low Power Timer (LPT) that runs during standby using the sub-clock oscillator, enabling periodic wake-up without full system activation.
R5F51137ADFP#3A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RX113
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RX
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, SSI, USB OTG
- Peripherals:
- Capacitive Touch, DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 82
- 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 17x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51137ADFP#3A FAQ
1.How can I place an order for R5F51137ADFP#3A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51137ADFP#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 R5F51137ADFP#3A reliable?
The price and inventory of R5F51137ADFP#3A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51137ADFP#3A is usually 5 days.
3.What payment methods are accepted for R5F51137ADFP#3A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51137ADFP#3A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51137ADFP#3A?
R5F51137ADFP#3A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51137ADFP#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 R5F51137ADFP#3A?
For technical support, including R5F51137ADFP#3A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51137ADFP#3A requirements.
6.How does Aetrix verify that R5F51137ADFP#3A is sourced from the original manufacturer or authorized distributors?
All R5F51137ADFP#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 R5F51137ADFP#3A meets industry standards.
7.What is the process for return or replacement of R5F51137ADFP#3A?
All R5F51137ADFP#3A units undergo pre-shipment inspection (PSI). If there is an issue with R5F51137ADFP#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 R5F51137ADFP#3A part is unused and in its original packaging.
Return procedure for R5F51137ADFP#3A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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