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Renesas R5F51111ADFL#1A
- Part No.:
- R5F51111ADFL#1A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F51111ADFL#1A.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
R5F51111ADFL#1A 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 ADC, dual 8-bit DACs, USB 2.0 full-speed host/function/OTG, and RTC - deployed in industrial sensor nodes and low-power HMI controllers.
For engineers reviewing the R5F51111ADFL#1A datasheet, R5F51111ADFL#1A pinout, R5F51111ADFL#1A application, or R5F51111ADFL#1A equivalent, key selection criteria include its 48-pin LFQFP (PLQP0048KB-A) package, −40°C to +85°C temperature grade, integrated USB transceiver with BC support, and software standby mode consuming only 0.44 μA with 4.8 μs wake-up time.
Technical Context
The R5F51111ADFL#1A 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 (32 MHz ±1%) and sub-clock (32.768 kHz) oscillators, PLL, and CAC for IEC 60730 compliance.
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 timer unit with six 16-bit channels for complementary PWM and phase counting - all synchronized to PCLK up to 32 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard with 5-stage pipeline, 50 DMIPS @ 32 MHz |
| Max Operating Frequency | 32 MHz (requires VCC ≥ 2.7 V); supports 8/16/32 MHz scaling per supply voltage |
| Memory | 32 KB flash (no wait states @ 32 MHz), 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 full-speed host/function/OTG (12 Mbps), 3× SCI, 1× RIIC (400 kbps), 1× RSPI (16 Mbps) |
| Power & Temp | 1.8–3.6 V operation; −40°C to +85°C (D-grade); software standby: 0.44 μA, wake-up in 4.8 μs |
| Package | 48-pin LFQFP (PLQP0048KB-A), 7 × 7 mm, 0.5 mm pitch, lead-free (Sn only) |
Pinout & Package
Package: 48-pin LFQFP (PLQP0048KB-A), 7 × 7 mm body, 0.5 mm pitch, exposed pad not present, RoHS-compliant Sn-only termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: digital (VCC/VSS) and analog (AVCC0/AVSS0/VREFH0/VREFL0) require separate decoupling |
| XTAL / EXTAL | Main crystal oscillator interface | Supports external 1–20 MHz crystal; XTAL can accept external clock input |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects 32.768 kHz crystal for RTC and low-power timing |
| USB0_DP / USB0_DM | USB 2.0 differential data pair | Integrated transceiver enables full-speed USB without external PHY; requires 1.5 kΩ pull-up on DP for device mode |
| AN000–AN015 | Analog input channels | 14 dedicated ADC inputs (AN000–AN004, AN006, AN008–AN015); share pins with GPIO |
| DA0 / DA1 | Digital-to-analog outputs | Two independent 8-bit voltage-output DACs (0 V to VCC range), available only on 48+ pin packages |
| P03, P14–P17, etc. | General-purpose I/O | 46 total I/Os on 64-pin variants; R5F51111ADFL#1A (48-pin) provides 30 GPIOs with 5-V tolerance and configurable pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Enables 35 event sources to trigger peripheral modules directly - eliminates interrupt latency and CPU overhead during sleep |
| Background Operation (BGO) | Data flash erasure/writing proceeds concurrently with program execution - no CPU stall required for firmware updates |
| USB Battery Charging (BC) Support | Detects D+/D− line states to identify wall adapters, charging ports, and downstream hosts - enables smart power management |
| Double Trigger ADC Mode | Captures two consecutive A/D conversions per trigger event - essential for motor control current sampling and noise rejection |
| IEC 60730 Class B Support | Includes hardware-assisted RAM test, clock accuracy measurement (CAC), and IWDT with dedicated 15 kHz oscillator |
Applications
| Industrial Sensor Node | USB-Capable HMI Controller |
|---|---|
Use Scenario: Compact environmental monitoring node with temperature, humidity, and CO₂ sensing, transmitting data via USB to host PC or gateway. IC Role / Device Role / Timing Role: Central MCU executing sensor fusion, USB CDC communication stack, and RTC-scheduled wake-up for periodic sampling. Use Value: Integrated USB transceiver and 0.44 μA software standby enable battery life >2 years on coin cell; 12-bit ADC ensures ±0.5% sensor measurement accuracy. |
Use Scenario: Touch-enabled front-panel controller for HVAC or power supply systems, requiring local display, button handling, and host-configurable parameters via USB. IC Role / Device Role / Timing Role: Real-time UI processor managing capacitive touch, SPI-driven LCD, and USB DFU for field firmware updates. Use Value: Dual 8-bit DACs generate analog reference voltages for display bias; ELC-triggered ADC sampling synchronizes with touch scan timing. |
| Low-Power Metering Interface | IEC 60730-Compliant Appliance Control |
Use Scenario: Smart electricity meter add-on module that reads pulse outputs from legacy meters and reports kWh via USB to data concentrator. IC Role / Device Role / Timing Role: Pulse counter and USB bridge with RTC timestamping; operates in deep sleep between pulse events. Use Value: Hardware pulse capture via MTU2 input capture eliminates missed pulses at <1 Hz; 4.8 μs wake-up ensures sub-millisecond response. |
Use Scenario: Safety-critical motor control in washing machine or dishwasher, requiring runtime self-test and fail-safe shutdown per IEC 60730 Class B. IC Role / Device Role / Timing Role: Main safety monitor running RAM checker, clock accuracy validation, and IWDT supervision alongside main application. Use Value: On-chip CAC validates system clock within ±1% tolerance; dedicated IWDT oscillator prevents lockup even if main clock fails. |
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 | 64-pin LFQFP (PLQP0064KB-A); adds 16 extra GPIOs, 4 additional ADC channels, and SSLA1–SSLA3 RSPI slave select outputs | Suitable for designs needing expanded I/O, multi-sensor interfaces, or daisy-chained SPI peripherals | Select when board layout allows larger 10×10 mm package and requires >30 GPIOs or >14 ADC inputs |
| R5F51113ADFL#3A | Same 48-pin LFQFP package; doubles flash (64 KB) and SRAM (10 KB → 10 KB still, but higher-tier variant offers 10 KB base + optional expansion) | Better suited for USB HID stacks, OTA update buffers, or complex RTOS applications requiring >32 KB code space | Choose when firmware size exceeds 32 KB or future-proofing for feature-rich upgrades is required |
Compared with R5F51111ADFL#1A, R5F51111ADFM#3A delivers greater I/O scalability in a larger footprint, while R5F51113ADFL#3A provides headroom for code growth without changing PCB layout - both retain identical USB, ADC, and low-power behavior.
Availability
R5F51111ADFL#1A is available at Aetrix Electronics and suitable for industrial sensor nodes, USB-capable HMI controllers, and IEC 60730-compliant appliance control systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for R5F51111ADFL#1A 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 embedded applications demanding USB connectivity, rich analog integration, and functional safety support - designed specifically for sensor hubs, smart actuators, and white-goods control.
FAQ
What is the maximum operating frequency and voltage requirement for R5F51111ADFL#1A?
R5F51111ADFL#1A operates at up to 32 MHz, but this requires VCC ≥ 2.7 V. At 1.8–2.4 V, max frequency is 8 MHz; at 2.4–2.7 V, it is 16 MHz. The 32 MHz ±1% high-speed on-chip oscillator eliminates need for external crystal in many applications, though XTAL/EXTAL pins remain available for precision timing.
Does R5F51111ADFL#1A support USB device, host, and OTG modes simultaneously?
Yes, R5F51111ADFL#1A integrates a single-port USB 2.0 host/function module compliant with USB 2.0 specification, supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) operation. It enables On-The-Go (OTG) mode via USB0_ID pin detection and supports Battery Charging (BC) detection - all within one physical port.
How many ADC channels and what resolution does R5F51111ADFL#1A provide?
R5F51111ADFL#1A includes a 12-bit successive-approximation A/D converter with up to 14 input channels (AN000–AN004, AN006, AN008–AN015). Minimum conversion time is 1.0 µs at 32 MHz ADCLK. It supports scan, group scan, and double-trigger modes - the latter captures two samples per trigger for motor control current sensing.
Is the D/A converter available on the R5F51111ADFL#1A package?
Yes, R5F51111ADFL#1A includes two 8-bit voltage-output D/A converters (DA0 and DA1). These are available only on 48-pin and larger packages per RX111 Group documentation, and R5F51111ADFL#1A (48-pin LFQFP) fully supports both channels with output range of 0 V to VCC.
What low-power modes does R5F51111ADFL#1A support, and what is the lowest current draw?
R5F51111ADFL#1A supports three low-power modes: Sleep, Deep Sleep, and Software Standby. In Software Standby mode, supply current drops to 0.44 μA (typical) with RTC and IWDT active, and wake-up occurs in 4.8 μs via external interrupt, RTC alarm, or USB resume - ideal for battery-powered endpoints.
R5F51111ADFL#1A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 30
- 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 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51111ADFL#1A FAQ
1.How can I place an order for R5F51111ADFL#1A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51111ADFL#1A 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 R5F51111ADFL#1A reliable?
The price and inventory of R5F51111ADFL#1A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51111ADFL#1A is usually 5 days.
3.What payment methods are accepted for R5F51111ADFL#1A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51111ADFL#1A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51111ADFL#1A?
R5F51111ADFL#1A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51111ADFL#1A 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 R5F51111ADFL#1A?
For technical support, including R5F51111ADFL#1A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51111ADFL#1A requirements.
6.How does Aetrix verify that R5F51111ADFL#1A is sourced from the original manufacturer or authorized distributors?
All R5F51111ADFL#1A 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 R5F51111ADFL#1A meets industry standards.
7.What is the process for return or replacement of R5F51111ADFL#1A?
All R5F51111ADFL#1A units undergo pre-shipment inspection (PSI). If there is an issue with R5F51111ADFL#1A, 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 R5F51111ADFL#1A part is unused and in its original packaging.
Return procedure for R5F51111ADFL#1A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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