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Renesas R5F51115ADFK#3A
- Part No.:
- R5F51115ADFK#3A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F51115ADFK#3A.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:596
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Product details
Overview
R5F51115ADFK#3A from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 128 KB on-chip flash, 16 KB SRAM, 8 KB data flash, 14-channel 12-bit ADC, dual 8-bit DAC, USB 2.0 full-speed host/function/OTG, RTC, and ELC for low-power event-driven operation - deployed in industrial HMI, sensor nodes, and USB-connected embedded control systems.
For engineers reviewing the R5F51115ADFK#3A datasheet, R5F51115ADFK#3A pinout, R5F51115ADFK#3A application, or R5F51115ADFK#3A equivalent, key selection criteria include its 64-pin LQFP (PLQP0064GA-A) package, −40°C to +85°C temperature grade, USB OTG support with BC detection, 4.8 μs wake-up from software standby, and IEC 60730-compliant safety features including CAC and IWDT.
Technical Context
The R5F51115ADFK#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 integrates PLL, high-speed (32 MHz ±1%) and low-speed on-chip oscillators, sub-clock (32.768 kHz), and CAC for real-time frequency accuracy monitoring.
Peripheral integration includes Event Link Controller (ELC) enabling direct module-to-module triggering without CPU intervention, Data Transfer Controller (DTC) supporting chain transfers across four modes, and MTU2 with six 16-bit channels offering complementary PWM, phase counting, and A/D trigger generation - all synchronized to PCLK up to 32 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard, 32 MHz max, 50 DMIPS, 64-bit accumulator, 73 basic + 9 DSP instructions |
| Memory | 128 KB flash (no wait states @32 MHz), 16 KB SRAM, 8 KB data flash (1M erase/write cycles) |
| ADC/DAC | 14-channel 12-bit ADC (1.0 μs min conversion), 2-channel 8-bit DAC (0–VCC output) |
| USB Interface | USB 2.0 full-speed (12 Mbps) host/function/OTG with BC detection and isochronous transfer support |
| Low-Power Modes | Software standby (0.44 μA), deep sleep, and sleep modes; 4.8 μs wake-up time from software standby |
| Operating Range | 1.8–3.6 V supply; −40°C to +85°C ambient (D-grade); IEC 60730 compliance via CAC, IWDT, RAM test assist |
| Timers & Control | MTU2 (6×16-bit channels), CMT (2×16-bit), RTC with calendar/leap-year, ELC for interrupt-free peripheral linking |
Pinout & Package
Package: PLQP0064GA-A - 64-pin LQFP, 14 × 14 mm body, 0.8 mm pitch, exposed pad not specified, RoHS-compliant Sn terminal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC (1.8–3.6 V digital/analog), VSS reference; VCC_USB/VSS_USB isolated for USB PHY |
| XTAL / EXTAL | Main crystal oscillator interface | Supports external crystal up to 20 MHz; enables precise clock source for PLL input (4–8 MHz range) |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects 32.768 kHz crystal for RTC timing and low-power wake-up source |
| USB0_DP / USB0_DM | USB 2.0 differential data pair | On-chip transceiver supports full-speed host/function/OTG; requires 27 Ω series resistors and proper PCB routing |
| AN000–AN015 | Analog input channels | 14 dedicated ADC inputs (AN000–AN004, AN006, AN008–AN015); AVCC0/AVSS0/VREFH0/VREFL0 pins enable precision referencing |
| DA0 / DA1 | Digital-to-analog outputs | Two independent 8-bit voltage-output DACs (0–VCC range); usable for sensor biasing, calibration, or analog feedback |
| MTIOC0A–MTIOC5W | MTU2 timer I/O | 24-pin timer resource set enabling complementary PWM, input capture, phase counting, and A/D trigger generation |
| SCI1/SCI5/SCI12, RIIC, RSPI | Serial communication interfaces | Three SCI channels (asynchronous/clock-sync/I²C/SPI), one RIIC (400 kbps), one RSPI (16 Mbps master/slave) |
Key Features
| Feature | Design Value |
|---|---|
| ELC Event Linking | 35 event sources directly connect peripherals (e.g., MTU→ADC start) without CPU or interrupt latency - critical for deterministic real-time response |
| Background Operation (BGO) | Data flash erases/writes execute while CPU runs main code - enables firmware updates and parameter storage without halting operation |
| IEC 60730 Safety Support | Integrated CAC measures clock accuracy in real time; IWDT uses dedicated 15 kHz oscillator; RAM test assist simplifies Class B certification |
| Dual DAC + Temperature Sensor | On-die temperature sensor digitized via 12-bit ADC; two 8-bit DACs provide analog outputs for closed-loop control or calibration references |
| USB Battery Charging (BC) | Detects D+/D− line states to identify wall adapters, charging ports, and downstream hosts - enables smart power management in portable devices |
Applications
| Industrial HMI Panel | USB-Capable Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled local display with real-time sensor readouts, configuration menus, and firmware update capability via USB. IC Role / Device Role / Timing Role: Primary controller executing GUI logic, managing touch interrupts, driving display interface, and handling USB mass storage or CDC ACM updates. Use Value: Integrated USB OTG eliminates external PHY; 128 KB flash stores UI assets and firmware; ELC synchronizes touch sampling with display refresh. |
Use Scenario: Battery-powered environmental monitor logging temperature, humidity, and gas concentration, uploading data via USB to host PC. IC Role / Device Role / Timing Role: System-on-chip sensor aggregator with ADC acquisition, RTC timestamping, low-power sleep scheduling, and USB bulk transfer engine. Use Value: 0.44 μA software standby extends battery life; on-chip temperature sensor calibrates ADC; USB BC detection identifies host power availability. |
| Medical Diagnostic Tool | Programmable Power Supply Controller |
|
Use Scenario: Portable device measuring bio-signals (ECG, pulse oximetry), performing real-time filtering, and exporting waveform data via USB. IC Role / Device Role / Timing Role: Signal acquisition controller with 12-bit ADC oversampling, DMA-accelerated data movement, and USB isochronous streaming to host. Use Value: 1.0 μs ADC conversion enables >1 MSPS effective sampling; double-trigger mode captures motor-control-relevant signal pairs; CRC calculator validates data integrity. |
Use Scenario: Bench or embedded power supply regulating output voltage/current using DAC feedback, monitoring thermal status, and accepting USB commands. IC Role / Device Role / Timing Role: Closed-loop regulator controller with dual 8-bit DAC outputs, temperature-sensed thermal derating, and USB CDC command interface. Use Value: Two independent DACs drive voltage and current control loops; internal temperature sensor triggers safe shutdown; USB OTG allows field reconfiguration without JTAG. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51115ADFM#3A | Same core, memory, and peripherals; differs only in package: 64-pin LFQFP (PLQP0064KB-A, 10×10 mm, 0.5 mm pitch) vs. LQFP (14×14 mm, 0.8 mm pitch) | Requires PCB layout change due to larger footprint and wider pin pitch; no electrical or functional difference | Select R5F51115ADFM#3A when board space permits smaller 0.5 mm pitch routing or when legacy LFQFP footprint is standardized |
| R5F51115ADFL#3A | 48-pin LFQFP (PLQP0048KB-A, 7×7 mm); reduced I/O count (30 GPIO vs. 46), no D/A converter, only 10 ADC channels, no USB OTG (host-only) | Suitable for cost- and size-constrained designs where USB device mode or dual DACs are unnecessary | Choose R5F51115ADFL#3A for compact, lower-BOM-cost implementations lacking USB peripheral functionality or analog output requirements |
Compared with R5F51115ADFK#3A, the ADFM#3A offers identical functionality in a denser package but demands finer-pitch layout, while the AFL#3A sacrifices USB OTG, DACs, and 4 ADC channels to achieve smaller size and lower unit cost - making each variant optimal for distinct mechanical and feature trade-offs.
Availability
R5F51115ADFK#3A is available at Aetrix Electronics and suitable for industrial HMI, USB-connected sensor nodes, and medical diagnostic tools requiring stable component supply, long-term lifecycle support, and automotive-grade reliability validation.
Supply support for R5F51115ADFK#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 RX111 Group, including R5F51115ADFK#3A, was designed for cost-sensitive, low-power embedded applications demanding USB connectivity, rich analog integration, and functional safety compliance - targeting HMI, sensor hubs, and portable instrumentation.
FAQ
What is the maximum operating frequency and CPU performance of the R5F51115ADFK#3A?
The R5F51115ADFK#3A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RX CPU core supports single-cycle 32×32-bit multiplication with 64-bit accumulation, five-stage pipeline execution, and ultra-compact variable-length instruction encoding - enabling efficient code density and deterministic real-time response in the R5F51115ADFK#3A.
Does the R5F51115ADFK#3A support USB On-The-Go (OTG) functionality?
Yes, the R5F51115ADFK#3A integrates a USB 2.0 host/function module that fully supports OTG operation, including BC (Battery Charger) detection, ID pin sensing (USB0_ID), VBUS monitoring (USB0_VBUS), and overcurrent protection (USB0_OVRCURA/B). This enables the R5F51115ADFK#3A to dynamically switch between host and peripheral roles without external ICs.
What low-power modes are available on the R5F51115ADFK#3A, and what is the wake-up time from standby?
The R5F51115ADFK#3A offers three low-power modes: sleep, deep sleep, and software standby. In software standby mode, it draws just 0.44 μA and recovers to full operation in 4.8 μs - enabled by dedicated low-speed clocks for IWDT and RTC, and retention of SRAM and register states. This makes the R5F51115ADFK#3A ideal for battery-powered applications requiring rapid responsiveness.
How many ADC and DAC channels does the R5F51115ADFK#3A include, and what are their resolutions?
The R5F51115ADFK#3A includes a 12-bit successive-approximation ADC with up to 14 input channels (AN000–AN004, AN006, AN008–AN015) and a minimum conversion time of 1.0 μs at 32 MHz ADCLK. It also integrates two independent 8-bit voltage-output DACs (DA0, DA1) with 0–VCC range - both features are confirmed in the R5F51115ADFK#3A datasheet and supported in its 64-pin LQFP package.
Is the R5F51115ADFK#3A qualified for IEC 60730 functional safety compliance?
Yes, the R5F51115ADFK#3A includes hardware features required for Class B IEC 60730 compliance: Clock Accuracy Measurement circuit (CAC), Independent Watchdog Timer (IWDT) with dedicated 15 kHz oscillator, RAM test assist functions, and voltage detection circuits. These are documented in the R5F51115ADFK#3A datasheet and enable certified self-test routines without external components.
R5F51115ADFK#3A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RX111
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RX
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, SCI, SPI, USB OTG
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 46
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 14x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51115ADFK#3A FAQ
1.How can I place an order for R5F51115ADFK#3A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51115ADFK#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 R5F51115ADFK#3A reliable?
The price and inventory of R5F51115ADFK#3A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51115ADFK#3A is usually 5 days.
3.What payment methods are accepted for R5F51115ADFK#3A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51115ADFK#3A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51115ADFK#3A?
R5F51115ADFK#3A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51115ADFK#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 R5F51115ADFK#3A?
For technical support, including R5F51115ADFK#3A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51115ADFK#3A requirements.
6.How does Aetrix verify that R5F51115ADFK#3A is sourced from the original manufacturer or authorized distributors?
All R5F51115ADFK#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 R5F51115ADFK#3A meets industry standards.
7.What is the process for return or replacement of R5F51115ADFK#3A?
All R5F51115ADFK#3A units undergo pre-shipment inspection (PSI). If there is an issue with R5F51115ADFK#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 R5F51115ADFK#3A part is unused and in its original packaging.
Return procedure for R5F51115ADFK#3A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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