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Renesas R5F51111ADFM#3A
- Part No.:
- R5F51111ADFM#3A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F51111ADFM#3A.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,320
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Product details
Overview
R5F51111ADFM#3A from Renesas is a 32-bit RX CPU core microcontroller operating at up to 32 MHz (50 DMIPS), featuring 32 KB 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, RTC, and ELC for low-power embedded control in industrial sensors and portable HMI devices.
For engineers reviewing the R5F51111ADFM#3A datasheet, R5F51111ADFM#3A pinout, R5F51111ADFM#3A application, or R5F51111ADFM#3A equivalent, key selection criteria include its 64-pin LFQFP package with 46 GPIOs, software standby current of 0.44 μA, 4.8 μs wake-up time, and integrated IEC 60730 safety functions for certified designs.
Technical Context
The R5F51111ADFM#3A implements a CISC Harvard architecture with five-stage pipeline and variable-length instructions, enabling ultra-compact code and single-cycle instruction execution. Its on-chip PLL supports 4–8 MHz input to generate system clock up to 32 MHz, while independent watchdog timer (IWDT) uses dedicated 15 kHz oscillator for fail-safe operation.
Event Link Controller (ELC) enables direct hardware-triggered peripheral operation without CPU intervention-e.g., MTU2 timers can initiate A/D conversion or RSPI transfers during sleep mode. The DTC supports chain transfer across four interrupt sources, reducing CPU load in high-throughput sensor or communication tasks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard with 5-stage pipeline, 73 basic + 9 DSP instructions |
| Max Operating Frequency | 32 MHz at VCC ≥ 2.7 V; delivers 50 DMIPS for real-time deterministic control |
| Memory | 32 KB on-chip flash (no wait states), 10 KB SRAM, 8 KB data flash (1M erase/write cycles) |
| Analog Peripherals | 14-channel 12-bit ADC (1.0 μs min conversion), 2-channel 8-bit DAC, integrated temperature sensor |
| Communication | USB 2.0 FS host/function/OTG (12 Mbps), 3× SCI, 1× RIIC (400 kbps), 1× RSPI (16 Mbps) |
| Power & Temp | 1.8–3.6 V supply; −40°C to +85°C operating range; software standby current = 0.44 μA |
| Low-Power Modes | Three modes: sleep, deep sleep, software standby; wake-up from standby in 4.8 μs via RTC or external event |
Pinout & Package
Package: PLQP0064KB-A - 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed pad (non-electrical), RoHS-compliant Sn finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers digital logic; VSS provides reference return path for all circuits |
| XTAL / EXTAL | Main crystal oscillator interface | Supports 1–20 MHz external crystal; enables precise timing for USB and RTC synchronization |
| USB0_DP / USB0_DM | USB 2.0 differential data pair | On-chip transceiver supports full-speed (12 Mbps) host/function/OTG; requires 27 Ω series termination |
| AN000–AN015 | Analog input channels | 14 dedicated pins for 12-bit ADC; AVCC0/AVSS0/VREFH0/VREFL0 enable ratiometric measurement accuracy |
| DA0 / DA1 | Analog output channels | Two 8-bit voltage-output DACs (0 V to VCC); usable for biasing, calibration, or analog waveform generation |
| P03, P14–P17, etc. | General-purpose I/O | 46 configurable GPIOs with 5-V tolerance, pull-up, open-drain, and MPC remapping for flexible peripheral routing |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Enables 35 event sources to trigger peripheral actions (e.g., MTU2 → A/D start) without CPU wake-up or ISR overhead |
| Data Transfer Controller (DTC) | Hardware DMA supporting normal, repeat, and block transfers; eliminates CPU polling for UART/SCI or SPI buffers |
| IEC 60730 Safety Support | Integrated CAC (clock accuracy check), IWDT, RAM test assist, and voltage monitor for Class B compliance certification |
| Realtime Clock (RTC) | Sub-clock (32.768 kHz) driven calendar with leap-year correction, alarm, and software-standby exit capability |
| Background Operation (BGO) | Data flash erase/write occurs concurrently with program execution-no CPU stall during firmware updates |
Applications
| Industrial Sensor Node | Portable HMI Terminal |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and pressure data every 10 seconds. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, RTC timestamping, USB-based configuration, and low-power sleep/wake cycles. Use Value: 0.44 μA software standby current and 4.8 μs wake-up enable >1-year battery life with periodic sensing. | Use Scenario: Handheld diagnostic tool with LCD display, touch interface, and USB connectivity for field service technicians. IC Role / Device Role / Timing Role: Main MCU handling GUI rendering, button/touch input, serial communication with test equipment, and USB mass storage for log export. Use Value: Integrated USB 2.0 host/function/OTG allows direct connection to PCs, flash drives, or test instruments without external PHY. |
| Smart Energy Meter Interface | Medical Patient Monitor Module |
Use Scenario: Sub-metering module interfacing with utility meters via RSPI or SCI, logging data locally and uploading via USB. IC Role / Device Role / Timing Role: Data concentrator with secure firmware update via BGO-enabled data flash and tamper-resistant RTC timestamping. Use Value: 1M-cycle data flash endurance ensures reliable 10+ year logging; CAC and IWDT support IEC 62056-21 compliance. | Use Scenario: Compact bedside module acquiring ECG/SpO₂ signals, performing basic filtering, and streaming to nurse station via USB. IC Role / Device Role / Timing Role: Signal acquisition controller using 12-bit ADC with double-trigger mode for motor-driven lead switching and synchronized sampling. Use Value: 1.0 μs ADC conversion time and MTU2-triggered sampling ensure precise timing alignment across multi-channel physiological waveforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51111ADFK#3A | Same core, memory, and peripherals; differs only in package: 64-pin LQFP (14 × 14 mm, 0.8 mm pitch) | Requires PCB layout change due to larger footprint and wider pin pitch; suited for prototyping or legacy board compatibility | Select when mechanical constraints favor standard LQFP over fine-pitch LFQFP or thermal performance demands larger pad area |
| R5F51111ADFL#3A | Identical electrical specs but 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch); reduced GPIO count (30 vs. 46) and no D/A converter | Limited analog output capability and fewer communication interfaces; suitable for cost-sensitive, space-constrained sensor nodes without DAC needs | Choose when design requires smaller footprint and can omit DAC functionality and 16 GPIOs without compromising core functionality |
Compared with R5F51111ADFM#3A, the R5F51111ADFK#3A offers identical performance in a larger, easier-to-solder package, while R5F51111ADFL#3A trades pin count and DAC for compactness-enabling lower BOM cost where analog outputs are unnecessary.
Availability
R5F51111ADFM#3A is available at Aetrix Electronics and suitable for industrial sensor nodes, portable HMI terminals, smart energy meter interfaces, and medical patient monitor modules requiring stable component supply, long-term lifecycle assurance, and IEC 60730-compliant firmware update capability.
Supply support for R5F51111ADFM#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 targets cost-sensitive, low-power embedded applications demanding rich analog integration, USB connectivity, and functional safety features-designed specifically for sensor hubs, portable instrumentation, and certified industrial controls.
FAQ
What is the maximum operating frequency and power supply range for the R5F51111ADFM#3A?
The R5F51111ADFM#3A operates at up to 32 MHz when powered by 2.7–3.6 V, 16 MHz at 2.4–2.7 V, and 8 MHz at 1.8–2.4 V. Its supply current is 3.2 mA (typ.) at 32 MHz. The device supports three low-power modes, including software standby at 0.44 μA, making it suitable for battery-operated systems where dynamic voltage and frequency scaling are critical for energy efficiency. All operating modes are fully specified across the −40°C to +85°C temperature range.
Does the R5F51111ADFM#3A include hardware support for functional safety standards like IEC 60730?
Yes, the R5F51111ADFM#3A integrates multiple hardware features required for Class B compliance under IEC 60730: a clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated 15 kHz oscillator, RAM test assist functions, and dual voltage detection circuits (LVDA). These are documented in the R01DS0190EJ0130 datasheet and enable certified self-test routines without external components-reducing validation effort for white goods, HVAC, and industrial control applications.
Can the R5F51111ADFM#3A perform background data flash programming while executing application code?
Yes, the R5F51111ADFM#3A supports Background Operation (BGO) for its 8 KB data flash memory. This allows erase and write operations to proceed concurrently with main program execution-enabling seamless firmware updates, parameter logging, or calibration data storage without CPU interruption. The BGO function is controlled via the FCLK divider and flash control registers, and endurance is rated at 1,000,000 erase/write cycles (typ.), ensuring robust field reliability for R5F51111ADFM#3A-based products.
What USB capabilities does the R5F51111ADFM#3A provide, and are external components required?
The R5F51111ADFM#3A integrates a full USB 2.0 transceiver supporting host, function, and OTG roles at full-speed (12 Mbps) and low-speed (1.5 Mbps), including isochronous transfer and Battery Charger (BC) detection. No external PHY is needed; only 27 Ω series resistors on USB0_DP/USB0_DM and proper VBUS sensing (via USB0_VBUS) are required. The on-chip USB module reduces BOM cost and board space versus discrete solutions-making R5F51111ADFM#3A ideal for portable diagnostics and field-programmable devices.
How many general-purpose I/O pins does the R5F51111ADFM#3A offer, and what advanced I/O features are supported?
The R5F51111ADFM#3A provides 46 general-purpose I/O pins in its 64-pin LFQFP package (PLQP0064KB-A). These support 5-V tolerance, programmable pull-up resistors, open-drain outputs, and flexible peripheral assignment via the Multi-function Pin Controller (MPC). Each pin can be remapped to multiple peripheral functions-including SCI, RSPI, RIIC, USB, MTU2 PWM, and ADC inputs-enabling optimal signal routing and reducing PCB layer count in R5F51111ADFM#3A-based designs.
R5F51111ADFM#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:
R5F51111ADFM#3A FAQ
1.How can I place an order for R5F51111ADFM#3A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51111ADFM#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 R5F51111ADFM#3A reliable?
The price and inventory of R5F51111ADFM#3A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51111ADFM#3A is usually 5 days.
3.What payment methods are accepted for R5F51111ADFM#3A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51111ADFM#3A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51111ADFM#3A?
R5F51111ADFM#3A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51111ADFM#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 R5F51111ADFM#3A?
For technical support, including R5F51111ADFM#3A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51111ADFM#3A requirements.
6.How does Aetrix verify that R5F51111ADFM#3A is sourced from the original manufacturer or authorized distributors?
All R5F51111ADFM#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 R5F51111ADFM#3A meets industry standards.
7.What is the process for return or replacement of R5F51111ADFM#3A?
All R5F51111ADFM#3A units undergo pre-shipment inspection (PSI). If there is an issue with R5F51111ADFM#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 R5F51111ADFM#3A part is unused and in its original packaging.
Return procedure for R5F51111ADFM#3A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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