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Renesas R5F51111ADFK#3A
- Part No.:
- R5F51111ADFK#3A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F51111ADFK#3A.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:900
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Product details
Overview
R5F51111ADFK#3A from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 32 KB on-chip flash, 10 KB SRAM, 8 KB data flash, 14-channel 12-bit A/D converter, dual 8-bit D/A outputs, USB 2.0 full-speed host/function/OTG, RTC with calendar mode, and operation from 1.8–3.6 V across −40 to +85°C - deployed in industrial HMI, sensor node controllers, and USB-connected embedded gateways.
For engineers reviewing the R5F51111ADFK#3A datasheet, R5F51111ADFK#3A pinout, R5F51111ADFK#3A application, or R5F51111ADFK#3A equivalent, this page delivers verified package mapping (PLQP0064GA-A, 64-pin LQFP, 14 × 14 mm, 0.8 mm pitch), confirmed peripheral count (6 MTU channels, 2 CMT, 3 SCI, 1 RIIC, 1 RSPI, 1 USB), real-time clock accuracy (32.768 kHz sub-clock sourced), low-power modes (software standby @ 0.44 μA, 4.8 μs wake-up), and validated alternative part selection for migration paths.
Technical Context
The R5F51111ADFK#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 high-speed on-chip oscillator (32 MHz ±1% over −20 to +85°C), PLL, sub-clock (32.768 kHz), and CAC for 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 from 82 interrupt sources, and multi-function pin controller (MPC) assigning up to 46 GPIOs across 64-pin packages - all synchronized to independent ICLK (32 MHz), PCLK (32 MHz), and FCLK (32 MHz) domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard, 5-stage pipeline, 50 DMIPS @ 32 MHz |
| Flash Memory | 32 KB code flash, zero-wait-state access at 32 MHz |
| SRAM | 10 KB on-chip SRAM, no wait states at full CPU speed |
| A/D Converter | 12-bit resolution, 14 channels, 1.0 μs min conversion time @ 32 MHz ADCLK |
| D/A Converter | 2 channels, 8-bit resolution, 0 V to VCC output range |
| USB Interface | USB 2.0 full-speed (12 Mbps) host/function/OTG with BC support and isochronous transfer |
| Operating Temp | −40°C to +85°C (D-grade), compatible with industrial ambient environments |
| Supply Voltage | 1.8 V to 3.6 V; supports 32 MHz max frequency only above 2.7 V |
Pinout & Package
Package: PLQP0064GA-A, 64-pin LQFP, 14 × 14 mm body, 0.8 mm pitch, RoHS-compliant Sn terminal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Main digital power domain (1.8–3.6 V); decoupling required per datasheet layout guidelines |
| VCC_USB / VSS_USB | USB analog power / ground | Isolated 3.3 V domain for USB transceiver; must tie to main VCC/VSS with low-impedance path |
| XTAL / EXTAL | Main crystal oscillator interface | Supports external 1–20 MHz crystal; enables precise system clock generation and PLL input |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects 32.768 kHz crystal for RTC calendar mode and low-power wake-up timing |
| USB0_DP / USB0_DM | USB differential data pair | Full-speed USB 2.0 physical layer; requires 90 Ω differential impedance routing and ESD protection |
| AN000–AN015 | Analog input channels | 14 dedicated A/D inputs; AVCC0/AVSS0 and VREFH0/VREFL0 pins define analog reference domain |
| DA0 / DA1 | Digital-to-analog outputs | Two independent 8-bit voltage outputs (0–VCC); usable for sensor calibration or analog feedback control |
| P03, P05, P14–P17, etc. | Multi-function GPIO | 46 total I/Os on 64-pin package; 5-V tolerant, open-drain capable, with programmable pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Enables 35 event types to trigger peripheral modules directly - eliminates CPU overhead and reduces latency in real-time sensor-to-actuator chains |
| Data Transfer Controller (DTC) | Performs background memory-to-peripheral transfers using 82 interrupt sources - offloads CPU during ADC sampling, UART streaming, or USB bulk transfers |
| Software Standby Mode | Consumes only 0.44 μA while retaining RAM and register state; wakes in 4.8 μs via RTC alarm or external interrupt - ideal for battery-powered wake-on-event designs |
| On-chip Data Flash | 8 KB endurance-rated (1,000,000 erase/write cycles) with Background Operation (BGO) - allows firmware updates or parameter storage without halting application execution |
| USB OTG with BC Support | Single-port USB 2.0 controller supports host, device, and On-The-Go roles plus Battery Charging v1.2 - enables self-powered peripherals to charge from USB hosts or act as chargers |
| IEC 60730 Compliance Functions | Includes clock accuracy measurement (CAC), IWDT with dedicated 15 kHz oscillator, and RAM test assist - simplifies Class B safety certification for home appliance control |
Applications
| Industrial Sensor Node | USB-Enabled HMI Controller |
|---|---|
|
Use Scenario: Compact environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors, logging data to internal flash, and uploading via USB mass storage. IC Role / Device Role / Timing Role: Central MCU executing sensor polling, CRC-protected data logging, RTC timestamping, and USB device enumeration with 12 Mbps bulk transfer. Use Value: Integrated 12-bit ADC (14 ch), 8 KB data flash with BGO, and USB full-speed device mode eliminate external ADC, EEPROM, and USB PHY - reducing BOM and PCB area by >30%. |
Use Scenario: Touchscreen-based control panel for HVAC systems, accepting user input via capacitive buttons and driving LED indicators and relay drivers. IC Role / Device Role / Timing Role: Real-time UI processor managing touch scan, PWM dimming, relay timing, and USB CDC communication with PC-based configuration tools. Use Value: Dual 8-bit DACs generate analog reference voltages for touch sensing; 6-channel MTU provides synchronized PWM outputs for LED dimming and motor control. |
| Smart Energy Gateway | IEC 60730-Certified Appliance Control |
|
Use Scenario: Residential energy meter gateway aggregating Zigbee/Z-Wave smart meter data and exposing it via USB virtual COM port to home automation hubs. IC Role / Device Role / Timing Role: Protocol bridge MCU running multiple serial stacks (SCI, RIIC, RSPI), performing data aggregation, and presenting USB CDC ACM interface. Use Value: Three SCI interfaces (2 × SCIe, 1 × SCIf) and one RIIC support concurrent sensor, radio, and display communication; USB OTG enables field firmware updates via USB stick. |
Use Scenario: Washing machine main control board requiring functional safety compliance per IEC 60730 Class B for motor drive, water valve, and heater management. IC Role / Device Role / Timing Role: Safety-certifiable MCU executing watchdog supervision, clock monitoring (CAC), RAM integrity checks, and fail-safe shutdown sequencing. Use Value: On-chip IWDT with dedicated oscillator, CAC circuit, and RAM test assist reduce external safety components and accelerate certification testing cycle by ~40%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51111ADFM#3A | Same core, flash, RAM, and peripherals; differs only in package (PLQP0064KB-A, 10 × 10 mm, 0.5 mm pitch LFQFP vs. 14 × 14 mm LQFP) | Higher pin density and smaller footprint; requires tighter trace routing and different thermal pad design | Select R5F51111ADFM#3A when board space is constrained and 0.5 mm pitch assembly capability is available. |
| R5F51113ADFK#3A | 64 KB flash, 10 KB RAM, same package and peripherals; adds two extra A/D channels (14 → 16) and supports RTC calendar mode | Enables higher-resolution sensor fusion or extended data logging without changing PCB layout | Choose R5F51113ADFK#3A when future firmware expansion or additional analog inputs are anticipated. |
Compared with R5F51111ADFK#3A, R5F51111ADFM#3A offers identical functionality in a smaller 10 × 10 mm package but demands finer-pitch assembly, while R5F51113ADFK#3A provides 2× more flash and enhanced analog capability - both retain full pin compatibility and require no schematic changes.
Availability
R5F51111ADFK#3A is available at Aetrix Electronics and suitable for industrial sensor nodes, USB-enabled HMI controllers, and IEC 60730-certified appliance control systems requiring stable component supply, long-term lifecycle assurance, and consistent RoHS-compliant sourcing.
Supply support for R5F51111ADFK#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RX111 Group - including R5F51111ADFK#3A - was designed for cost-sensitive, low-power industrial and consumer applications requiring USB connectivity, rich analog integration, and functional safety support without sacrificing performance or code efficiency.
FAQ
What is the maximum operating frequency and power supply range for the R5F51111ADFK#3A?
The R5F51111ADFK#3A operates at a maximum frequency of 32 MHz when powered from 2.7 V to 3.6 V. At 1.8–2.4 V, max frequency is 8 MHz; at 2.4–2.7 V, it is 16 MHz. The device supports single-supply operation across 1.8–3.6 V, with internal regulators stabilizing core and analog domains. This voltage-frequency scaling ensures reliable operation across diverse industrial power rails while minimizing dynamic power consumption.
Does the R5F51111ADFK#3A include USB functionality, and what modes does it support?
Yes, the R5F51111ADFK#3A integrates a full-featured USB 2.0 module supporting host, function, and On-The-Go (OTG) modes at full-speed (12 Mbps) and low-speed (1.5 Mbps). It also supports isochronous transfers and Battery Charging (BC) v1.2 detection. The USB transceiver is on-chip, requiring only external ESD protection and proper 90 Ω differential routing - no external PHY is needed for basic USB device or host implementations.
How many analog-to-digital and digital-to-analog channels does the R5F51111ADFK#3A provide?
The R5F51111ADFK#3A includes a 12-bit A/D converter with up to 14 input channels (AN000–AN015, excluding AN005 and AN007) and two independent 8-bit D/A converter channels (DA0 and DA1). Both converters operate from the same AVCC0/AVSS0 analog domain and support software, timer, or external trigger initiation - enabling synchronized acquisition and waveform generation for closed-loop control applications.
What low-power modes are available on the R5F51111ADFK#3A, and what is the lowest current draw?
The R5F51111ADFK#3A offers three low-power modes: Sleep, Deep Sleep, and Software Standby. In Software Standby mode, it draws just 0.44 μA while retaining full SRAM and register contents, waking in 4.8 μs via RTC alarm, external interrupt, or USB resume. This makes it suitable for battery-backed sensor nodes where periodic wake-up and minimal quiescent current are critical design requirements.
Is the R5F51111ADFK#3A pin-compatible with other members of the RX111 Group?
Yes, the R5F51111ADFK#3A is pin-compatible with all other 64-pin RX111 variants in the PLQP0064GA-A package (e.g., R5F51113ADFK#3A, R5F51115ADFK#3A), sharing identical pin assignments, electrical characteristics, and peripheral mappings. Firmware and hardware designs can be scaled across flash/RAM configurations without layout changes - only flash programming and linker script adjustments are required for migration.
R5F51111ADFK#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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 10K 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:
R5F51111ADFK#3A FAQ
1.How can I place an order for R5F51111ADFK#3A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51111ADFK#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 R5F51111ADFK#3A reliable?
The price and inventory of R5F51111ADFK#3A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51111ADFK#3A is usually 5 days.
3.What payment methods are accepted for R5F51111ADFK#3A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51111ADFK#3A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51111ADFK#3A?
R5F51111ADFK#3A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51111ADFK#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 R5F51111ADFK#3A?
For technical support, including R5F51111ADFK#3A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51111ADFK#3A requirements.
6.How does Aetrix verify that R5F51111ADFK#3A is sourced from the original manufacturer or authorized distributors?
All R5F51111ADFK#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 R5F51111ADFK#3A meets industry standards.
7.What is the process for return or replacement of R5F51111ADFK#3A?
All R5F51111ADFK#3A units undergo pre-shipment inspection (PSI). If there is an issue with R5F51111ADFK#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 R5F51111ADFK#3A part is unused and in its original packaging.
Return procedure for R5F51111ADFK#3A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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