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Renesas R5F101FDAFP#X0
- Part No.:
- R5F101FDAFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FDAFP#X0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,557
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Product details
Overview
R5F101FDAFP#X0 from Renesas is a 44-pin LQFP-44, 32 MHz RL78/G13 16-bit microcontroller with 64 KB flash, 4 KB data flash, 4 KB RAM, and industrial-grade -40°C to +85°C operation. It integrates 10-bit ADC (24 channels), RTC, UART/I²C/CSI interfaces, 16-bit timers, and ultra-low-power modes (0.57 μA in STOP with RTC+LVD) for embedded control in HVAC, motor drives, and smart sensors.
For engineers reviewing the R5F101FDAFP#X0 datasheet, R5F101FDAFP#X0 pinout, R5F101FDAFP#X0 application, or R5F101FDAFP#X0 equivalent, key selection criteria include its data flash absence (vs. R5F100x series), LQFP-44 package compatibility, 64 KB code flash capacity, and support for background data flash rewriting during program execution.
Technical Context
The R5F101FDAFP#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory subsystem includes 64 KB on-chip flash with 1 KB block erase granularity and 4 KB data flash with background operation (BGO) and 1M rewrite endurance.
Power management features include HALT, STOP, and SNOOZE low-power modes, on-chip POR and 14-level LVD, and a high-accuracy ±1.0% on-chip oscillator (1–32 MHz selectable). Peripheral integration covers up to 24-channel 10-bit ADC, real-time clock with calendar/alarm, and three serial interface types (CSI, UART/LIN, I²C) across configurable channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS performance for real-time control tasks |
| Flash Memory | 64 KB code flash - supports secure block erase prohibition and self-programming with boot swap |
| Data Flash | 4 KB - enables BGO for concurrent code execution and nonvolatile parameter storage |
| RAM | 4 KB - sufficient for RTOS stacks, communication buffers, and sensor data processing |
| ADC Resolution & Channels | 10-bit, 24 input channels - supports precision analog sensing with internal 1.45 V reference |
| Operating Temperature | -40°C to +85°C - qualified for industrial environments without derating |
| Supply Voltage Range | 1.6 V to 5.5 V - enables direct battery or wide-input power supply interfacing |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support noise isolation; VDD accepts 1.6–5.5 V directly |
| P10/SCK00/SCL00 | Port 10 / SPI clock / I²C clock | Multi-function pin enabling hardware SPI or I²C master/slave without GPIO remapping |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI input / UART RX / debug RX / I²C data | Shared debug and communication path reduces pin count while maintaining tooling access |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Configurable as analog input or external ADC reference source for ratiometric measurements |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Enables differential ADC measurement or external reference biasing |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to POR and LVD outputs |
| CLKP/CLKM | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC or high-frequency crystals up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA current draw with RTC and LVD active - extends battery life in always-on sensor nodes |
| Background data flash rewrite | Execute application code from flash while updating 4 KB data flash - enables field firmware updates without interruption |
| On-chip debug interface | Single-wire debug (SWD) via TOOLRxD/TOOLTxD pins - eliminates dedicated debug header footprint |
| Multi-protocol serial interfaces | Hardware CSI (SPI-compatible), UART with LIN support, and I²C - simplifies connectivity to displays, transceivers, and sensors |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - provides time-stamped logging without external RTC IC |
| 14-level voltage detector | Configurable LVD interrupt/reset thresholds - enables precise brown-out detection across varying supply conditions |
Applications
| Smart Thermostats | Industrial Motor Controllers |
|---|---|
Use Scenario: Standalone HVAC control unit monitoring temperature, humidity, and occupancy while managing relay-driven heating/cooling stages. IC Role / Device Role / Timing Role: Main system controller executing PID algorithms, driving display, and communicating via UART to Wi-Fi module. Use Value: 64 KB flash accommodates full control stack + OTA update image; 10-bit ADC ensures ±0.5°C thermal accuracy; STOP mode extends battery backup runtime to >1 year. | Use Scenario: Compact BLDC motor driver board for pumps and fans requiring closed-loop speed control and fault monitoring. IC Role / Device Role / Timing Role: Real-time motion controller handling PWM generation, current sensing ADC sampling, and overtemperature shutdown logic. Use Value: 32 MHz core delivers deterministic 100 μs control loop timing; 24-channel ADC supports simultaneous phase current and bus voltage sampling; -40°C to +85°C rating ensures reliability in enclosed enclosures. |
| Programmable Power Supplies | Asset Tracking Sensors |
Use Scenario: Bench-style DC power supply with digital setpoint adjustment, voltage/current regulation, and USB-C communication. IC Role / Device Role / Timing Role: System manager coordinating DAC output, feedback ADC, safety interlocks, and USB-to-UART bridge. Use Value: 4 KB data flash stores calibration coefficients and user presets; BGO allows live calibration updates during operation; 1.6–5.5 V supply range matches internal LDO output. | Use Scenario: Battery-powered GPS tracker logging location, temperature, and shock events at configurable intervals. IC Role / Device Role / Timing Role: Low-power host MCU managing GPS module wake-up, accelerometer interrupts, and flash-based event buffering. Use Value: 0.57 μA STOP mode with RTC enables 10-year battery life on coin cell; integrated RTC calendar timestamps each event; UART/LIN interface supports legacy telematics gateways. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FDAFP#X0 | Includes 4 KB data flash; identical pinout, package, and peripheral set | Required where nonvolatile parameter storage or field-updatable calibration is needed | Select when data flash functionality is mandatory; otherwise R5F101FDAFP#X0 reduces cost and flash overhead |
| R5F101GDAFP#X0 | 96 KB flash, 8 KB RAM, same 44-pin LQFP package and peripherals | Suitable for applications needing larger firmware image or deeper RTOS task stacks | Choose for future-proofing or complex protocol stacks; verify PCB layout accommodates identical footprint |
Compared with R5F100FDAFP#X0, this part removes data flash to reduce cost and die size while retaining identical low-power performance and peripheral integration; compared with R5F101GDAFP#X0, it trades flash/RAM capacity for lower BOM cost in resource-constrained designs.
Availability
R5F101FDAFP#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart building automation, and battery-powered sensor node applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for R5F101FDAFP#X0 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 RL78/G13 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring extended battery life, robust peripheral integration, and seamless toolchain support.
FAQ
What is the maximum operating frequency of the R5F101FDAFP#X0?
The R5F101FDAFP#X0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS performance. This frequency is fully supported across the entire -40°C to +85°C industrial temperature range and 1.6–5.5 V supply voltage, enabling deterministic real-time control without external clock components.
Does the R5F101FDAFP#X0 include data flash memory?
No, the R5F101FDAFP#X0 does not include data flash memory. Per Renesas part numbering convention, the "101" prefix indicates no data flash, distinguishing it from "100" series parts like R5F100FDAFP#X0 which integrate 4 KB data flash. This omission reduces cost and die size while retaining identical code flash, RAM, and peripheral capabilities.
Which package type and pin count does the R5F101FDAFP#X0 use?
The R5F101FDAFP#X0 uses a 44-pin LQFP package (10 × 10 mm, 0.8-mm pitch), identified by the "FP" suffix and "#X0" embossed tape packaging code. This package is pin-compatible with other RL78/G13 44-pin variants including R5F100FDAFP#X0 and R5F101GDAFP#X0, enabling drop-in replacement within the same footprint.
What low-power modes are supported by the R5F101FDAFP#X0?
The R5F101FDAFP#X0 supports HALT, STOP, and SNOOZE low-power modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - critical for battery-backed applications. HALT halts the CPU while preserving RAM and peripheral states, and SNOOZE enables peripheral-triggered wake-up with minimal latency for responsive sensor polling.
Can the R5F101FDAFP#X0 execute code while rewriting data flash?
No - the R5F101FDAFP#X0 does not include data flash memory, so background data flash rewriting (BGO) is not applicable. That feature is exclusive to "100" series parts such as R5F100FDAFP#X0. The R5F101FDAFP#X0 retains full self-programming capability for its 64 KB code flash, including boot swap and flash shield window functions.
R5F101FDAFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 31
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101FDAFP#X0 FAQ
1.How can I place an order for R5F101FDAFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FDAFP#X0 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 R5F101FDAFP#X0 reliable?
The price and inventory of R5F101FDAFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FDAFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F101FDAFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FDAFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FDAFP#X0?
R5F101FDAFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FDAFP#X0 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 R5F101FDAFP#X0?
For technical support, including R5F101FDAFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FDAFP#X0 requirements.
6.How does Aetrix verify that R5F101FDAFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101FDAFP#X0 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 R5F101FDAFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F101FDAFP#X0?
All R5F101FDAFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FDAFP#X0, 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 R5F101FDAFP#X0 part is unused and in its original packaging.
Return procedure for R5F101FDAFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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