Renesas R5F104FDAFP#V0
- Part No.:
- R5F104FDAFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F104FDAFP#V0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104FDAFP#V0 from Renesas is a 44-pin LQFP, 96 KB flash, 12 KB RAM RL78/G14 16-bit microcontroller operating from 1.6–5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD mode), used in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F104FDAFP#V0 datasheet, R5F104FDAFP#V0 pinout, R5F104FDAFP#V0 application, or R5F104FDAFP#V0 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm package, integrated 10-bit 16-channel ADC, dual UART/LIN support, and industrial-grade −40°C to +85°C operation with hardware debug interface.
Technical Context
The R5F104FDAFP#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and includes multiply/divide/accumulate instructions within a 1 MB address space. It integrates event-driven peripheral control via ELC and data movement automation through DTC.
It features a high-accuracy ±1.0% on-chip oscillator (selectable 1–64 MHz), real-time clock with calendar/alarm/correction, and hardware-based self-programming with boot swap and flash shield window functions for secure firmware updates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 44 DMIPS @ 32 MHz |
| Flash / Data Flash | 96 KB code flash + 8 KB data flash with 1,000,000 write cycles and background operation |
| RAM | 12 KB on-chip SRAM, including dedicated areas for flash library execution |
| Power Supply | 1.6–5.5 V single supply; 66 μA/MHz active current, 0.60 μA in RTC+LVD STOP mode |
| Analog Peripherals | 10-bit 16-channel ADC with internal 1.45 V reference and temperature sensor; two 8-bit DAC channels |
| Timers & Clock | 12× 16-bit timers (TAU/TIMER RJ/RD/RG), 12-bit interval timer, RTC with calendar/alarm, watchdog timer |
| Serial Interfaces | 3× UART/LIN, 4× CSI (SPI-compatible), 4× I²C/simplified I²C, all configurable via ELC |
| Package | 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, industrial temperature grade (−40°C to +85°C) |
Pinout & Package
44-pin plastic LQFP (10 × 10 mm, 0.8 mm pitch), 0.8 mm lead pitch, exposed pad not present. Requires 0.47–1 μF capacitor between REGC and VSS.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit, timer input, and debug clock input; supports asynchronous serial communication and timing capture |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive, timer output, and debug clock output; enables full-duplex UART and synchronized peripheral triggering |
| P10–P17 | SPI/I²C/UART channel pins (SCK11–TRDIOD1) | Multi-function serial interface group supporting CSI, I²C, and UART with flexible peripheral I/O redirection |
| P120–P147 | VCOUT0/1, ANI19/18, PCLBUZ0/1 | Dedicated voltage-controlled oscillator outputs, analog inputs, and programmable buzzer drivers for sensor excitation and audio feedback |
| P30–P31 | INTP3/RTC1HZ, INTP4/TI03/TO03 | Real-time clock interrupt output and general-purpose timer I/O for precise timekeeping and PWM generation |
| RESET, REGC, VDD, VSS | Reset control, regulator capacitor, power rails | Hardware reset assertion, internal LDO stabilization, and clean 1.6–5.5 V supply distribution critical for low-power stability |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE mode operation | Enables CPU halt while peripherals (ADC, UART, RTC) remain active-reducing average system power in duty-cycled sensing |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 peripheral events eliminates CPU polling overhead and improves deterministic response latency |
| Data Flash BGO | Background operation allows full program execution during 8 KB data flash rewrite-enabling seamless logging without runtime interruption |
| On-chip debug interface | Fully compliant with Renesas E2 emulator; supports real-time trace, breakpoints, and flash programming without external JTAG adapter |
| Multi-voltage I/O | Supports 1.8/2.5/3.0 V logic interfacing directly-eliminates level shifters when connecting to legacy or low-voltage sensors/peripherals |
| Hardware security functions | Block erase prohibition and flash shield window prevent unauthorized firmware readout or modification-meeting basic industrial security requirements |
Applications
| Industrial Sensor Node | Smart Thermostat Control |
|---|---|
Use Scenario: Battery-powered environmental monitoring unit measuring temperature, humidity, and CO₂ with wireless telemetry. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, LIN bus communication to HVAC actuators, and RTC-scheduled wake-up for low-duty-cycle operation. Use Value: 0.60 μA STOP mode extends 2xAA battery life beyond 5 years; integrated LIN transceiver interface reduces BOM count by one IC. | Use Scenario: Residential HVAC control panel with touch interface, local display, and cloud connectivity via MCU-managed UART-to-WiFi bridge. IC Role / Device Role / Timing Role: Central application processor handling button debouncing, display refresh timing, and UART command parsing for WiFi module control. Use Value: 12 KB RAM accommodates both UI state machine and buffered serial protocol stack; 4× UART channels enable simultaneous debug, WiFi, IR, and legacy HVAC bus interfaces. |
| Programmable Logic Relay | Energy Metering Front-End |
Use Scenario: DIN-rail mounted relay module accepting digital inputs, executing user-defined logic, and driving solid-state outputs with status LED feedback. IC Role / Device Role / Timing Role: Real-time deterministic controller executing ladder logic via DTC-assisted I/O scanning and PWM-driven LED dimming with precise 1 ms resolution. Use Value: 12× 16-bit timers provide independent timing domains for input debounce, output pulse width, and LED fade cycles-no software timing jitter. | Use Scenario: Two-quadrant electricity meter front-end acquiring voltage/current waveforms, computing RMS, kWh, and harmonics before forwarding to host MCU. IC Role / Device Role / Timing Role: High-precision analog acquisition engine using 10-bit 16-channel ADC with internal reference and temperature compensation for metrology-grade accuracy. Use Value: On-chip temperature sensor and 1.45 V reference enable drift compensation without external components; 16-channel scan supports multi-phase voltage/current sampling in single conversion sequence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104FGAFP#V0 | 128 KB flash, 16 KB RAM, same 44-pin LQFP package and peripheral set | Higher firmware headroom for OTA updates and feature-rich HMI stacks | Select when future firmware expansion or larger bootloader requirements exist |
| R5F104FDGFP#V0 | Identical flash/RAM/specs but rated for −40°C to +105°C industrial operation | Required for under-hood automotive or high-ambient industrial enclosures | Select when ambient operating temperature exceeds +85°C |
Compared with R5F104FDAFP#V0, the R5F104FGAFP#V0 provides 33% more flash for complex control algorithms, while the R5F104FDGFP#V0 maintains identical functionality with extended thermal qualification-enabling drop-in replacement only in thermally demanding environments.
Availability
R5F104FDAFP#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat control systems, and programmable logic relays requiring stable component supply across long production lifecycles.
Supply support for R5F104FDAFP#V0 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/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications requiring robust peripheral integration and long-term supply assurance.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104FDAFP#V0?
The R5F104FDAFP#V0 operates up to 32 MHz with an RL78 CPU core delivering 44 DMIPS. Its high-speed on-chip oscillator achieves ±1.0% accuracy across 1.8–5.5 V and −20°C to +85°C, enabling reliable timing without external crystals in many applications. The R5F104FDAFP#V0 supports dynamic clock switching between 1 MHz and 64 MHz modes for adaptive power/performance tuning.
Does the R5F104FDAFP#V0 support in-system programming and secure firmware updates?
Yes, the R5F104FDAFP#V0 supports full in-system programming via its on-chip debug interface and includes hardware-enforced security features: flash shield window restricts read access to designated memory regions, and block erase prohibition prevents unauthorized firmware modification. Self-programming operates with boot swap capability, allowing safe dual-bank firmware updates without runtime interruption.
How many analog input channels and what resolution does the ADC in the R5F104FDAFP#V0 provide?
The R5F104FDAFP#V0 integrates a 10-bit successive-approximation ADC with 16 analog input channels (ANI0–ANI19, excluding reserved pins), operating across the full 1.6–5.5 V supply range. It includes an internal 1.45 V reference voltage and on-die temperature sensor, enabling calibrated measurements without external references-critical for sensor node accuracy and thermal compensation.
What serial communication interfaces are available on the R5F104FDAFP#V0 and how are they configured?
The R5F104FDAFP#V0 provides 3 UART/LIN channels, 4 CSI (SPI-compatible) channels, and 4 I²C/simplified I²C channels-all configurable via the Event Link Controller (ELC) for hardware-triggered transfers. Pin multiplexing is managed through Peripheral I/O Redirection Registers (PIOR0/1), allowing dynamic reassignment of serial functions to multiple pin groups without PCB redesign.
What is the industrial temperature rating and packaging specification for the R5F104FDAFP#V0?
The R5F104FDAFP#V0 is qualified for industrial operation from −40°C to +85°C and packaged in a 44-pin LQFP (10 × 10 mm, 0.8 mm pitch) with #V0 tray packaging. This package complies with JEDEC standard MS-026, supports automated SMT assembly, and includes internal LDO regulation with REGC capacitor decoupling for stable low-power operation.
R5F104FDAFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- 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:
- 4K x 8
- RAM Size:
- 5.5K 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:
R5F104FDAFP#V0 FAQ
1.How can I place an order for R5F104FDAFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104FDAFP#V0 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 R5F104FDAFP#V0 reliable?
The price and inventory of R5F104FDAFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104FDAFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F104FDAFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104FDAFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104FDAFP#V0?
R5F104FDAFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104FDAFP#V0 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 R5F104FDAFP#V0?
For technical support, including R5F104FDAFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104FDAFP#V0 requirements.
6.How does Aetrix verify that R5F104FDAFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104FDAFP#V0 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 R5F104FDAFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F104FDAFP#V0?
All R5F104FDAFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104FDAFP#V0, 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 R5F104FDAFP#V0 part is unused and in its original packaging.
Return procedure for R5F104FDAFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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