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Renesas R5F51111ADNF#2A
- Part No.:
- R5F51111ADNF#2A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F51111ADNF#2A.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,470
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Product details
Overview
R5F51111ADNF#2A from Renesas is a 32-bit RX CPU core 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 ADC, dual 8-bit DAC, USB 2.0 full-speed host/function/OTG, and RTC - deployed in industrial sensor nodes requiring low-power, real-time control with USB connectivity.
For engineers reviewing the R5F51111ADNF#2A datasheet, R5F51111ADNF#2A pinout, R5F51111ADNF#2A application, or R5F51111ADNF#2A equivalent, key selection criteria include its 40-pin HWQFN (PWQN0040KC-A) package, −40°C to +85°C temperature grade, integrated USB transceiver with BC support, and software standby mode recovery in 4.8 μs.
Technical Context
The R5F51111ADNF#2A implements a CISC Harvard-architecture RX CPU 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 module-to-module triggering without CPU intervention, supporting low-latency peripheral coordination during sleep modes.
Its clock system includes independent high-speed (32 MHz ±1%) and low-speed (15 kHz) on-chip oscillators, PLL input range of 4–8 MHz, and Clock Accuracy Measurement (CAC) circuit for IEC 60730 compliance. The USB 2.0 module supports full-speed (12 Mbps), OTG, isochronous transfer, and Battery Charging (BC) detection.
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 | 32 KB flash (no wait states @ 32 MHz), 10 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 V to VCC output) |
| USB Interface | USB 2.0 full-speed host/function/OTG controller with integrated transceiver, BC detection, isochronous support |
| Low-Power Modes | Software standby (0.44 µA), deep sleep, and sleep modes; 4.8 µs wake-up from software standby |
| Operating Range | 1.8–3.6 V supply; −40°C to +85°C ambient (D-grade); 40-pin HWQFN (PWQN0040KC-A, 6 × 6 mm, 0.5 mm pitch) |
| Peripherals | SCI ×3 (async/clock-sync/I²C/SPI), RIIC ×1 (400 kbps), RSPI ×1 (16 Mbps), MTU2 ×6, CMT ×2, RTC, IWDT, ELC, DTC |
Pinout & Package
Package: PWQN0040KC-A, 40-pin HWQFN, 6 × 6 mm body, 0.50 mm pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Main digital power (1.8–3.6 V) and reference ground; decoupling required per layout guidelines |
| VCC_USB / VSS_USB | USB analog power / ground | Isolated 3.3 V supply domain for USB transceiver; must tie to main VCC but with dedicated filtering |
| USB0_DP / USB0_DM | USB differential data pair | Full-speed USB 2.0 interface pins; require 90 Ω differential impedance routing and ESD protection |
| USB0_VBUS / USB0_ID | VBUS sense / OTG ID detect | Enables host/peripheral role negotiation in OTG mode; VBUS monitoring triggers USB state machine |
| AN000–AN004, AN006–AN015 | Analog inputs | 14-channel ADC input pins; AVCC0/AVSS0/VREFH0/VREFL0 must be properly decoupled for 12-bit accuracy |
| DA0 / DA1 | Digital-to-analog outputs | Two independent 8-bit voltage-output DAC channels; rail-to-rail swing (0 V to VCC) |
| P03, P14–P17, P26–P27, P30–P32, P35, P40–P44, P46, P54–P55, PA0–PA1/PA3–PA4/PA6, PB0–PB1/PB3/PB5–PB7, PC0–PC7, PE0–PE7, PH7, PJ6–PJ7 | General-purpose I/O | 24 GPIOs total (per Table 1.2 for 40-pin variant); 5-V tolerant, configurable pull-up, open-drain capable |
| XTAL / EXTAL | Main crystal oscillator interface | Supports external 1–20 MHz crystal; internal high-speed oscillator (32 MHz ±1%) usable as alternative clock source |
| RES# / MD / UB# / UPSEL | Reset / boot mode control | Active-low reset; MD sets boot mode; UB#/UPSEL configure USB bootloader entry on power-up |
Key Features
| Feature | Design Value |
|---|---|
| USB 2.0 OTG with BC Detection | Enables self-powered peripheral or host operation with automatic charger type identification (SDP/CDP/DCP) |
| Background Operation (BGO) Data Flash | Allows concurrent code execution and 8 KB data flash erase/write - critical for firmware-over-the-air updates |
| Event Link Controller (ELC) | Eliminates CPU overhead by chaining peripheral events (e.g., timer overflow → ADC trigger → DTC transfer) |
| IEC 60730 Class B Support | Integrated CAC, IWDT, RAM test assist, and clock monitoring enable safety-certified appliance control designs |
| Ultra-Low Standby Current | 0.44 µA software standby current enables multi-year battery life in wireless sensor endpoints |
Applications
| Industrial Sensor Node | USB-Capable HMI Controller |
|---|---|
Use Scenario: Compact environmental monitor with temperature/humidity sensing, local display, and USB configuration port. IC Role / Device Role / Timing Role: Main MCU executing sensor fusion, driving SPI OLED display, and managing USB CDC ACM virtual COM port. Use Value: Integrated USB transceiver eliminates external PHY; 40-pin QFN enables minimal PCB footprint; 12-bit ADC ensures <±1 LSB linearity for precision analog reads. |
Use Scenario: Panel-mounted control unit with tactile buttons, LED indicators, and USB-based parameter upload/download. IC Role / Device Role / Timing Role: Real-time coordinator between user inputs, status LEDs, and host PC via USB HID or vendor-specific class. Use Value: Dual 8-bit DACs generate analog control signals; ELC synchronizes button press → LED blink → USB report transmission without CPU polling. |
| Energy Metering Subsystem | Smart Actuator Interface |
Use Scenario: DIN-rail mounted sub-meter collecting voltage/current samples and reporting via USB mass storage or CDC. IC Role / Device Role / Timing Role: High-accuracy ADC sampling engine with double-trigger mode for motor current harmonics analysis. Use Value: 1.0 µs ADC conversion time supports >500 kSPS effective sampling; data flash stores calibration coefficients with 1M endurance. |
Use Scenario: Valve or relay driver module accepting USB commands and providing analog feedback (e.g., position, temperature). IC Role / Device Role / Timing Role: Isolated command interpreter using SCI/USB, generating PWM via MTU2 and analog feedback via DAC/ADC. Use Value: Complementary PWM output mode drives half-bridge gate drivers; 32 MHz CPU handles real-time PID loop at 10 kHz update rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51111ADFM#3A | 64-pin LFQFP (PLQP0064KB-A), same memory, same peripherals, adds 22 extra GPIOs and full 14-channel ADC | Suitable for designs needing more I/O, additional UART/SPI channels, or full ADC channel count | Select when board layout allows larger package and requires expanded peripheral access or routing flexibility |
| R5F5111JADNF#UA | 16 KB flash / 8 KB RAM variant in identical 40-pin HWQFN package; otherwise identical peripheral set and timing | Ideal for cost-sensitive, functionally constrained applications where 32 KB flash is excessive | Choose for firmware-limited applications (e.g., simple USB bridge) to reduce BOM cost without sacrificing package or interface compatibility |
Compared with R5F51111ADNF#2A, R5F51111ADFM#3A offers greater I/O scalability in a larger footprint, while R5F5111JADNF#UA reduces memory cost within the same compact 40-pin form factor - both retain identical USB, ADC, DAC, and low-power behavior.
Availability
R5F51111ADNF#2A is available at Aetrix Electronics and suitable for industrial sensor nodes, USB-capable HMI controllers, energy metering subsystems, smart actuator interfaces, and IEC 60730-compliant appliance control requiring stable component supply across extended product lifecycles.
Supply support for R5F51111ADNF#2A 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 automotive, industrial, and IoT markets.
The RX111 Group targets cost-sensitive, low-power industrial and consumer applications requiring USB connectivity, real-time performance, and functional safety support - designed specifically for compact, battery-aware edge devices.
FAQ
What is the maximum operating frequency and CPU performance of the R5F51111ADNF#2A?
The R5F51111ADNF#2A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RX CPU core features a five-stage pipeline, variable-length instruction encoding, and a 64-bit accumulator enabling single-cycle 32×32 multiply-accumulate operations - making it suitable for deterministic real-time control tasks in the R5F51111ADNF#2A.
Does the R5F51111ADNF#2A include an integrated USB transceiver and support OTG functionality?
Yes, the R5F51111ADNF#2A integrates a full-speed USB 2.0 transceiver and supports host, function, and On-The-Go (OTG) modes. It complies with USB 2.0 specifications, provides BC (Battery Charger) detection, and supports isochronous transfers - all implemented without external PHY components in the R5F51111ADNF#2A.
What are the memory resources available on the R5F51111ADNF#2A?
The R5F51111ADNF#2A includes 32 KB of on-chip flash memory (executed at full speed with no wait states), 10 KB of SRAM, and 8 KB of data flash rated for 1,000,000 erase/write cycles. The data flash supports Background Operation (BGO), allowing concurrent program execution and nonvolatile parameter storage in the R5F51111ADNF#2A.
Which package and pin count does the R5F51111ADNF#2A use?
The R5F51111ADNF#2A uses the PWQN0040KC-A package: a 40-pin HWQFN with 6 × 6 mm body size and 0.50 mm pitch. This compact, thermally enhanced package provides 24 general-purpose I/O pins and is optimized for space-constrained industrial and portable designs using the R5F51111ADNF#2A.
What low-power capabilities does the R5F51111ADNF#2A offer for battery-operated applications?
The R5F51111ADNF#2A supports three low-power modes, including software standby with just 0.44 µA typical current draw and 4.8 µs wake-up time. Its supply voltage range (1.8–3.6 V), programmable operating modes (high/middle/low-speed), and module stop functions make it ideal for long-life battery applications deploying the R5F51111ADNF#2A.
R5F51111ADNF#2A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- 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
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 24
- 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 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51111ADNF#2A FAQ
1.How can I place an order for R5F51111ADNF#2A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51111ADNF#2A 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 R5F51111ADNF#2A reliable?
The price and inventory of R5F51111ADNF#2A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51111ADNF#2A is usually 5 days.
3.What payment methods are accepted for R5F51111ADNF#2A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51111ADNF#2A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51111ADNF#2A?
R5F51111ADNF#2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51111ADNF#2A 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 R5F51111ADNF#2A?
For technical support, including R5F51111ADNF#2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51111ADNF#2A requirements.
6.How does Aetrix verify that R5F51111ADNF#2A is sourced from the original manufacturer or authorized distributors?
All R5F51111ADNF#2A 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 R5F51111ADNF#2A meets industry standards.
7.What is the process for return or replacement of R5F51111ADNF#2A?
All R5F51111ADNF#2A units undergo pre-shipment inspection (PSI). If there is an issue with R5F51111ADNF#2A, 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 R5F51111ADNF#2A part is unused and in its original packaging.
Return procedure for R5F51111ADNF#2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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