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Renesas R5F51115ADFM#3A
- Part No.:
- R5F51115ADFM#3A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F51115ADFM#3A.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F51115ADFM#3A from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 128 Kbytes of on-chip flash, 16 Kbytes of SRAM, and 8 Kbytes of data flash. It integrates USB 2.0 full-speed host/function/OTG, 12-bit A/D converter (14 channels), 8-bit D/A converter (2 channels), RTC, and operates across −40°C to +85°C in a 64-pin LFQFP (PLQP0064KB-A) package.
For engineers reviewing the R5F5115ADFM#3A datasheet, R5F51115ADFM#3A pinout, R5F51115ADFM#3A application, or R5F51115ADFM#3A equivalent, this MCU delivers deterministic real-time control with low-power modes (software standby: 0.44 μA), hardware-accelerated peripherals (DTC, ELC), and IEC 60730-compliant safety functions for embedded industrial and consumer systems.
Technical Context
The R5F51115ADFM#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 high-speed on-chip oscillator (32 MHz ±1%), PLL, sub-clock (32.768 kHz), 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 82 interrupt sources - both critical for deterministic motor control and sensor fusion applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard architecture, 5-stage pipeline, 50 DMIPS @ 32 MHz |
| Memory | 128 Kbytes flash (no wait states @ 32 MHz), 16 Kbytes SRAM, 8 Kbytes data flash (1M erase/write cycles) |
| Operating Voltage | 1.8 V to 3.6 V; max frequency scales with voltage (32 MHz @ 2.7–3.6 V) |
| Low-Power Modes | Software standby (0.44 μA), deep sleep, and sleep modes; 4.8 μs wake-up from software standby |
| Analog Peripherals | 12-bit A/D converter (14 channels, 1.0 μs min conversion), 8-bit D/A (2 channels), integrated temperature sensor |
| Communication | USB 2.0 full-speed host/function/OTG (12 Mbps), SCI ×3, RIIC ×1, RSPI ×1, all with flexible clocking and framing |
| Timers & Control | MTU2 ×6 channels (PWM, input capture, phase counting), CMT ×2, RTC with calendar mode, IWDT with dedicated 15 kHz oscillator |
Pinout & Package
Package: PLQP0064KB-A - 64-pin Low-Profile Quad Flat Package, 10 mm × 10 mm, 0.5 mm pitch, lead-free (Sn only), RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: digital (VCC/VSS) and analog (AVCC0/AVSS0/VREFH0/VREFL0); decoupling required per datasheet layout guidelines |
| XTAL / EXTAL | Main clock oscillator interface | Supports external crystal (1–20 MHz) or clock input; XTAL can output clock signal for system synchronization |
| USB0_DP / USB0_DM | USB differential data pair | Integrated full-speed transceiver; requires 27 Ω series resistors and proper PCB impedance control (90 Ω differential) |
| AN000–AN015 | Analog input channels | 14 dedicated A/D inputs (including high-precision channels); support external trigger (ADTRG0#) and double-trigger for motor control |
| DA0 / DA1 | Digital-to-analog outputs | 2-channel 8-bit voltage-output DAC (0 V to VCC); available only on 64-pin packages like R5F51115ADFM#3A |
| P03, P14–P17, PC0–PC7, etc. | General-purpose I/O | 46 GPIOs total; 5-V tolerant, configurable pull-up, open-drain, and peripheral function multiplexing via MPC |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Enables 35 event sources to directly trigger peripheral operations (e.g., MTU start on A/D completion), eliminating CPU overhead and latency in closed-loop control |
| Data Transfer Controller (DTC) | Hardware DMA supporting normal, repeat, and block transfer modes; chainable across interrupt sources for autonomous sensor data acquisition without CPU polling |
| IEC 60730 Compliance Support | Includes clock accuracy measurement (CAC), independent watchdog (IWDT), RAM test assist, and voltage detection circuits - enabling Class B safety certification out-of-the-box |
| USB OTG with BC Detection | Single-port USB 2.0 controller supporting host, device, and OTG roles with Battery Charger (BC 1.2) detection - simplifies dual-role portable device design |
| Real-Time Clock (RTC) | Sub-clock-driven calendar mode with leap-year correction, alarm, periodic, and carry interrupts; capable of waking MCU from software standby mode |
Applications
| Industrial Motor Control | Smart Home Hub |
|---|---|
Use Scenario: Brushless DC motor commutation with current sensing, position feedback, and thermal monitoring in HVAC blowers or appliance pumps. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using MTU2 PWM outputs, synchronized A/D sampling (double-trigger), and DTC-managed ADC-to-SRAM transfers. Use Value: Deterministic 1.0 μs A/D conversion and ELC-triggered PWM updates enable <10 μs control loop jitter - critical for acoustic noise reduction and torque ripple minimization. |
Use Scenario: Central hub aggregating Zigbee, BLE, and wired sensor data, managing local decision logic, and communicating with cloud via USB or UART. IC Role / Device Role / Timing Role: USB OTG host for firmware updates via flash drive; RIIC/SCI interfaces for multi-protocol peripheral management; RTC for time-stamped event logging. Use Value: Integrated USB host + 3x SCI + RIIC + RSPI eliminates external bridge ICs, reducing BOM cost and PCB area while maintaining protocol flexibility. |
| Medical Wearable Sensor Node | Energy Monitoring Gateway |
Use Scenario: Battery-powered wearable measuring ECG, temperature, and motion via analog front-end and IMU, transmitting data over USB or BLE. IC Role / Device Role / Timing Role: Ultra-low-power operation using software standby (0.44 μA); on-chip temperature sensor and 12-bit A/D for biometric signal conditioning. Use Value: Sub-μA standby current extends coin-cell battery life beyond 12 months; integrated 15 kHz IWDT oscillator ensures fail-safe reset without external components. |
Use Scenario: DIN-rail mounted gateway collecting voltage/current harmonics from smart meters via RSPI or SCI, storing logs in data flash, and uploading via USB host. IC Role / Device Role / Timing Role: High-accuracy timing via sub-clock RTC and CAC; 8 Kbytes data flash with 1M write cycles stores >10 years of timestamped energy logs. Use Value: Background Operation (BGO) allows data flash writes during active measurement - enabling continuous logging without sampling interruption or data loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51115AGFM#3A | Same core, memory, and peripherals; rated for −40°C to +105°C (G-grade) vs. D-grade (−40°C to +85°C) | Required for under-hood automotive or high-ambient industrial environments | Select R5F51115AGFM#3A when extended temperature range or higher reliability qualification is mandated. |
| R5F51116ADFM#3A | 256 Kbytes flash, 32 Kbytes SRAM, otherwise identical peripheral set and package | Suitable for applications requiring larger firmware image (e.g., OTA update partition, RTOS + middleware) | Choose R5F51116ADFM#3A when code size exceeds 128 Kbytes or additional RAM is needed for buffering or multitasking. |
Compared with R5F51115ADFM#3A, the G-grade variant offers extended thermal resilience without functional trade-offs, while the R5F51116ADFM#3A provides scalable memory headroom - both maintain pin compatibility, toolchain alignment, and identical low-power behavior.
Availability
R5F51115ADFM#3A is available at Aetrix Electronics and suitable for industrial motor control, smart home hubs, medical wearables, energy monitoring gateways, and USB-enabled embedded devices requiring stable component supply and long-term manufacturability.
Supply support for R5F51115ADFM#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 R5F51115ADFM#3A, was designed for cost-sensitive, low-power embedded applications demanding real-time performance, USB connectivity, and functional safety compliance - targeting industrial automation, consumer appliances, and portable instrumentation.
FAQ
What is the maximum operating frequency and associated performance of the R5F51115ADFM#3A?
The R5F51115ADFM#3A operates at a maximum frequency of 32 MHz, delivering 50 DMIPS of processing performance. This speed is achievable within the 2.7–3.6 V supply range; at lower voltages (1.8–2.4 V), max frequency reduces to 8 MHz. The RX CPU core achieves one instruction per clock cycle for most basic operations, supported by a five-stage pipeline and ultra-compact instruction encoding.
Does the R5F51115ADFM#3A support USB On-The-Go functionality?
Yes, the R5F51115ADFM#3A integrates a USB 2.0 host/function module that fully supports On-The-Go (OTG) operation. It includes USB0_DP and USB0_DM pins, VBUS monitoring (USB0_VBUS), ID detection (USB0_ID), and OTG control signals (USB0_EXICEN, USB0_VBUSEN), enabling dynamic role switching between host and device modes in a single hardware design.
How many analog-to-digital converter channels does the R5F51115ADFM#3A provide, and what is its conversion speed?
The R5F51115ADFM#3A features a 12-bit A/D converter with up to 14 input channels (AN000–AN015). At 32 MHz ADCLK, its minimum conversion time is 1.0 μs per channel. It supports scan modes (single, continuous, group), double-trigger for redundant sampling in motor control, and external trigger initiation via ADTRG0# or ELC events.
Is the R5F51115ADFM#3A pin-compatible with other members of the RX111 Group?
Yes - the R5F51115ADFM#3A in the PLQP0064KB-A package shares identical pinout and electrical characteristics with all other 64-pin RX111 variants (e.g., R5F51116ADFM#3A, R5F51118ADFM#3A). This enables drop-in memory upgrades and design reuse across the family without PCB changes, provided peripheral usage aligns with the specific variant's feature set.
What low-power modes are available on the R5F51115ADFM#3A, and what is the lowest achievable current draw?
The R5F51115ADFM#3A offers three low-power consumption modes: sleep, deep sleep, and software standby. In software standby mode, it draws just 0.44 μA (typical) while retaining SRAM and register contents. Wake-up occurs in 4.8 μs via RTC alarm, external interrupt, or ELC event - making it ideal for battery-operated sensor nodes requiring infrequent but precise wake-ups.
R5F51115ADFM#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:
R5F51115ADFM#3A FAQ
1.How can I place an order for R5F51115ADFM#3A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51115ADFM#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 R5F51115ADFM#3A reliable?
The price and inventory of R5F51115ADFM#3A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51115ADFM#3A is usually 5 days.
3.What payment methods are accepted for R5F51115ADFM#3A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51115ADFM#3A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51115ADFM#3A?
R5F51115ADFM#3A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51115ADFM#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 R5F51115ADFM#3A?
For technical support, including R5F51115ADFM#3A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51115ADFM#3A requirements.
6.How does Aetrix verify that R5F51115ADFM#3A is sourced from the original manufacturer or authorized distributors?
All R5F51115ADFM#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 R5F51115ADFM#3A meets industry standards.
7.What is the process for return or replacement of R5F51115ADFM#3A?
All R5F51115ADFM#3A units undergo pre-shipment inspection (PSI). If there is an issue with R5F51115ADFM#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 R5F51115ADFM#3A part is unused and in its original packaging.
Return procedure for R5F51115ADFM#3A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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