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Renesas R5F101FDDFP#X0
- Part No.:
- R5F101FDDFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FDDFP#X0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,963
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Product details
Overview
R5F101FDDFP#X0 from Renesas is a 44-pin LQFP-44, 1.6–5.5 V, 32 MHz RL78/G13 16-bit microcontroller with 96 KB flash, 4 KB RAM, no data flash, and industrial-grade −40°C to +85°C operation. It integrates 12-bit RTC, 10-bit 16-channel ADC, 8× 16-bit timers, UART/SPI/I²C interfaces, and ultra-low-power HALT/STOP/SNOOZE modes for battery-powered sensor nodes and industrial control panels.
For engineers reviewing the R5F101FDDFP#X0 datasheet, R5F101FDDFP#X0 pinout, R5F101FDDFP#X0 application, or R5F101FDDFP#X0 equivalent, key selection criteria include its 96 KB code flash without data flash, 44-pin LQFP package with 32 I/Os, integrated RTC+LVD+DMA, and support for LIN-bus UART - critical for cost-sensitive, low-power embedded control designs requiring long-term supply stability.
Technical Context
The R5F101FDDFP#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, enabling 41 DMIPS at 32 MHz while maintaining 66 μA/MHz active current and 0.57 μA RTC-only standby. Its memory subsystem includes 96 KB on-chip flash (1 KB block size), 4 KB SRAM, and no data flash - distinguishing it from R5F100x variants.
Peripheral integration targets deterministic real-time control: dual UART channels (one LIN-capable), up to 10 I²C/Simplified I²C interfaces, 8× 16-bit timers with PWM output, 12-bit interval timer, and hardware multiplier/divider. The device operates across −40°C to +85°C using internal high-accuracy ±1.0% oscillator (1–32 MHz selectable) and on-chip POR/LVD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash / RAM | 96 KB code flash (1 KB erase blocks); 4 KB SRAM; no data flash |
| Supply & Temp | 1.6–5.5 V single supply; −40°C to +85°C industrial grade (D suffix) |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE (low-latency wake) |
| Analog Peripherals | 10-bit 16-channel ADC (VDD-referenced), internal 1.45 V reference, temperature sensor |
| Digital Interfaces | 2× UART (1 LIN-capable), 2–8× CSI/SPI, 3–10× I²C/Simplified I²C, 8× 16-bit timers |
| Package | 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), FP suffix, embossed tape (#X0) |
Pinout & Package
44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, moisture sensitivity level 3. Pin 1 marked by dot; thermal pad not present. Compatible with standard reflow profiles per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply / Ground | Dual VDD/VSS pairs ensure stable core/peripheral rail decoupling; supports 1.6–5.5 V operation |
| P10/P11 | SCK00/SI00/RxD0 | Primary SPI clock/input and UART0 receive; shared with debug TOOLRxD and I²C SDA00 |
| P12/P13 | SO00/TxD0 | SPI0 data output and UART0 transmit; enables full-duplex serial communication |
| P20–P27 | ANI0–ANI7 | 8 of 16 ADC input channels; P20 also serves as AVREFP, enabling precise analog measurement |
| P30–P37 | Port 3 I/O | General-purpose bidirectional I/O with N-ch open-drain option, pull-up, TTL buffer, and 6 V tolerance on select pins |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD reset outputs |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active - enables >10-year coin-cell battery life in metering |
| No data flash variant | Omits 4–8 KB data flash to reduce cost and die size; uses code flash for parameter storage via self-programming |
| LIN-capable UART | UART0 supports LIN 2.2 physical layer timing and checksum; eliminates need for external transceiver in automotive body modules |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control and sensor fusion math |
| On-chip debug interface | Fully integrated on-chip debug (OCD) with SWD-like 2-pin interface - reduces BOM and PCB space vs. external JTAG |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered gas/water meter with pulse counting, RTC timestamping, and wireless upload. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing RTC calendar, and driving sub-GHz RF transceiver via SPI. Use Value: 0.57 μA STOP mode extends 10-year battery life; 16-channel ADC reads flow sensors and temperature; LIN UART simplifies firmware updates over bus. |
Use Scenario: DIN-rail mounted temperature/humidity monitor with Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Real-time data acquisition hub with 10-bit ADC sampling, UART-to-RS485 translation, and watchdog supervision. Use Value: 41 DMIPS handles Modbus CRC and floating-point dew point calculation; 8× 16-bit timers manage precise sampling intervals and LED blink patterns. |
| Home Appliance Control | Automotive Body Controller |
|
Use Scenario: Washing machine main board managing motor drive, water valves, display, and user interface. IC Role / Device Role / Timing Role: Central MCU coordinating PWM motor control, relay drivers, capacitive touch sensing, and buzzer feedback. Use Value: Hardware multiplier accelerates FOC motor control loops; 32 GPIOs support direct button/LED/relay interfacing; SNOOZE mode enables fast wake on door open. |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN communication. IC Role / Device Role / Timing Role: LIN slave node receiving commands from body ECU, driving H-bridge drivers, and monitoring switch inputs. Use Value: Integrated LIN-capable UART eliminates external transceiver; 6 V-tolerant I/O interfaces directly with 12 V switches; −40°C to +85°C rating ensures under-hood reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FDDFP#X0 | Same 96 KB flash, 4 KB RAM, 44-pin LQFP, but includes 4 KB data flash and higher 8 KB RAM | Preferred where EEPROM-like parameter storage is required without software emulation | Select when field firmware updates or calibration data logging are mandatory |
| RL78/G14 R5F104GDDFP#X0 | RL78/G14 family: 128 KB flash, 12 KB RAM, enhanced ADC (12-bit, 26 ch), 2× CAN FD | Required for CAN-based vehicle networks or higher-resolution sensor processing | Choose for next-gen designs needing CAN FD or larger code space; not drop-in compatible |
Compared with R5F101FDDFP#X0, R5F100FDDFP#X0 adds data flash at minor cost premium for non-volatile parameter retention, while R5F104GDDFP#X0 upgrades to CAN FD and doubles RAM - making it suitable for scalable platforms where future connectivity or compute headroom is prioritized.
Availability
R5F101FDDFP#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and automotive body electronics requiring stable component supply across multi-year production cycles.
Supply support for R5F101FDDFP#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 family delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, peripheral richness, and energy efficiency.
FAQ
What is the flash memory configuration of the R5F101FDDFP#X0?
The R5F101FDDFP#X0 contains 96 KB of on-chip code flash memory organized in 1 KB erasable blocks, with no dedicated data flash memory. This configuration relies on self-programming of code flash for parameter storage, supported by the flash shield window function and boot swap capability. The absence of data flash reduces cost and die area while maintaining functional integrity for many embedded control applications.
Does the R5F101FDDFP#X0 support LIN communication?
Yes, the R5F101FDDFP#X0 supports LIN communication through UART0, which is explicitly LIN-bus capable per the RL78/G13 datasheet. UART0 provides hardware-level support for LIN 2.2 frame formatting, checksum generation, and synchronization break detection - enabling direct connection to a LIN transceiver without protocol offload firmware.
What is the operating temperature range for the R5F101FDDFP#X0?
The R5F101FDDFP#X0 is rated for industrial operation from −40°C to +85°C, indicated by the 'D' suffix in its part number family. This specification is validated across the full voltage range (1.6–5.5 V) and applies to all embedded peripherals including ADC, RTC, and oscillators - ensuring reliable deployment in factory automation, HVAC, and outdoor metering environments.
How does the R5F101FDDFP#X0 achieve ultra-low power consumption?
The R5F101FDDFP#X0 achieves ultra-low power via three optimized modes: HALT (66 μA/MHz), STOP (0.57 μA with RTC + LVD active), and SNOOZE (fast wake from peripheral events). These are enabled by the RL78 core's low-leakage process, dynamic clock gating, and independent peripheral clock control - allowing selective activation of ADC, UART, or timers without waking the CPU.
Is the R5F101FDDFP#X0 pin-compatible with other RL78/G13 devices in 44-pin LQFP?
Yes, the R5F101FDDFP#X0 shares identical pinout and electrical characteristics with all RL78/G13 44-pin LQFP variants (e.g., R5F100FDDFP#X0, R5F101FAAFP#X0), including power, reset, debug, and peripheral signal assignments. However, functional differences - such as presence/absence of data flash or oscillator options - require firmware validation but no PCB change.
R5F101FDDFP#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:
R5F101FDDFP#X0 FAQ
1.How can I place an order for R5F101FDDFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FDDFP#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 R5F101FDDFP#X0 reliable?
The price and inventory of R5F101FDDFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FDDFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F101FDDFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FDDFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FDDFP#X0?
R5F101FDDFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FDDFP#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 R5F101FDDFP#X0?
For technical support, including R5F101FDDFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FDDFP#X0 requirements.
6.How does Aetrix verify that R5F101FDDFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101FDDFP#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 R5F101FDDFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F101FDDFP#X0?
All R5F101FDDFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FDDFP#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 R5F101FDDFP#X0 part is unused and in its original packaging.
Return procedure for R5F101FDDFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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