Renesas R5F104FDDFP#V0
- Part No.:
- R5F104FDDFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F104FDDFP#V0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104FDDFP#V0 from Renesas is a 44-pin LQFP-44, 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 HALT/STOP/SNOOZE modes (0.60 μA RTC+LVD), targeting industrial sensor nodes and battery-powered HMI control.
For engineers reviewing the R5F104FDDFP#V0 datasheet, R5F104FDDFP#V0 pinout, R5F104FDDFP#V0 application, or R5F104FDDFP#V0 equivalent, key selection considerations include its 44-pin LQFP-0.8 mm pitch package, integrated 10-bit 16-channel ADC, dual UART/LIN support, and industrial-grade −40°C to +85°C operation with LVD interrupt capability.
Technical Context
The R5F104FDDFP#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 with 1 MB address space and four banks of 8-bit general-purpose registers.
It integrates a 16-bit Timer Array Unit (TAU) with 8 channels, one 12-bit interval timer, one real-time clock with calendar/alarm/correction, one watchdog timer, and event-driven peripherals coordinated via Event Link Controller (ELC) and Data Transfer Controller (DTC) for autonomous low-CPU-load operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 44 DMIPS for deterministic real-time control |
| Flash Memory | 96 KB code flash - supports in-application programming with boot swap and flash shield window |
| Data Flash | 4 KB - enables 1,000,000 write cycles with background operation (BGO) |
| RAM | 12 KB on-chip SRAM - sufficient for RTOS stacks, communication buffers, and sensor fusion |
| ADC | 10-bit resolution, 16 analog input channels, internal 1.45 V reference and temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 3.3 V, and 5 V peripherals without level shifters |
| Temp Range | −40°C to +85°C - qualified for industrial ambient conditions per D-grade specification |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, plastic body with exposed pad not required (non-HWQFN).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; debug clock input - configurable for serial comms or timing capture |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; debug clock output - supports full-duplex UART and trigger synchronization |
| P10–P17 | CSI/UART/I²C/SCL/SDA/TRDIODx | Multiplexed serial interfaces - enable concurrent SPI, UART (LIN-capable), and I²C up to 4 channels |
| P120 | ANI19 / VCOUT0 | Analog input channel 19 or voltage-controlled oscillator output - supports sensor monitoring or clock generation |
| P121/P122 | X1 / X2 / EXCLK | Crystal oscillator inputs or external clock source - enables precise timing with 32.768 kHz RTC or high-speed 32 MHz system clock |
| P137 | INTP0 | External interrupt pin 0 - used for wake-up from STOP mode or priority event handling |
| RESET | Active-low reset input | Asynchronous hardware reset with internal POR and LVD - ensures reliable startup under brown-out conditions |
| VDD / VSS | Power supply / ground | Dual power domains support noise isolation; REGC capacitor (0.47–1 μF) required for internal regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA typical with RTC + LVD active - extends battery life in always-on sensor applications |
| SNOOZE mode | Enables peripheral-triggered ADC conversion or UART RX while CPU sleeps - reduces average current without sacrificing responsiveness |
| Hardware ELC | Links 19–26 event sources (e.g., timer overflow, ADC end-of-conversion) directly to peripherals - eliminates CPU polling overhead |
| Self-programmable flash | Supports secure firmware updates in-field via boot swap and flash shield window - prevents unauthorized reprogramming |
| Dual UART with LIN support | Two independent UART modules with LIN bus physical layer compliance - simplifies automotive body electronics integration |
| On-chip temperature sensor | Calibrated ±3°C accuracy across −40°C to +85°C - enables thermal monitoring without external components |
Applications
| Industrial Sensor Node | Smart Thermostat Control |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity/pressure node with LoRaWAN or BLE connectivity. IC Role / Device Role / Timing Role: Main controller managing sensor acquisition, data preprocessing, radio interface, and ultra-low-power sleep scheduling. Use Value: 0.60 μA STOP mode with RTC alarm enables hourly wake-up and transmission, extending 2× AA battery life beyond 5 years. |
Use Scenario: Residential HVAC controller with touch HMI, relay drivers, and environmental sensing. IC Role / Device Role / Timing Role: System-on-chip managing display refresh, button debounce, PID loop execution, and fan speed modulation. Use Value: Integrated 10-bit 16-channel ADC and dual UART allow direct connection to thermistors, humidity sensors, and HVAC bus protocols (e.g., BACnet MS/TP). |
| Programmable Logic Relay | Industrial Panel Meter |
Use Scenario: DIN-rail mounted logic relay with configurable I/O, time delays, and digital input filtering. IC Role / Device Role / Timing Role: Real-time decision engine executing ladder logic or state-machine routines with deterministic 32 MHz timing. Use Value: 44 DMIPS performance and 8-channel TAU timers support sub-millisecond I/O response and precise pulse-width modulation for solid-state outputs. |
Use Scenario: 4–20 mA loop-powered panel meter with analog front-end, LCD driver, and local configuration buttons. IC Role / Device Role / Timing Role: Signal conditioner and display controller performing scaling, linearization, and 4-digit LCD update at 60 Hz. Use Value: On-chip 1.45 V reference and temperature compensation eliminate external precision references, reducing BOM cost and board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104FGDFP#V0 | 128 KB flash, 16 KB RAM, same 44-pin LQFP package and peripheral set | Supports larger firmware (e.g., OTA stack + encryption) without layout change | Select when future firmware growth or cryptographic libraries require >96 KB code space |
| R5F104FDHFP#V0 | Same 96 KB flash/12 KB RAM, but 48-pin LQFP-0.5 mm pitch package with 4 additional GPIO and 2 extra ADC channels | Enables higher I/O density and expanded analog monitoring in space-constrained designs | Select when design requires ≥20 GPIO or simultaneous sampling of >16 analog signals |
Compared with R5F104FDDFP#V0, R5F104FGDFP#V0 provides headroom for feature-rich firmware while maintaining pin compatibility, whereas R5F104FDHFP#V0 trades package footprint for expanded I/O and analog resources - both serve distinct scalability paths without altering core architecture or toolchain.
Availability
R5F104FDDFP#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat control, and programmable logic relays requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F104FDDFP#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 industrial, automotive, and IoT markets.
The RL78/G14 family is designed for cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, energy efficiency, and integration to replace discrete logic and legacy 8-bit MCUs.
FAQ
What is the maximum clock frequency supported by the R5F104FDDFP#V0?
The R5F104FDDFP#V0 supports a maximum operating frequency of 32 MHz using the high-speed on-chip oscillator, delivering 44 DMIPS of processing performance. It also supports lower-frequency operation down to 32.768 kHz for RTC and ultra-low-power modes, with instruction execution time scaling accordingly from 0.03125 μs to 30.5 μs.
Does the R5F104FDDFP#V0 include an integrated ADC, and what are its specifications?
Yes, the R5F104FDDFP#V0 includes a 10-bit successive-approximation ADC with 16 analog input channels, operating across the full 1.6–5.5 V supply range. It features an internal 1.45 V reference voltage and an integrated temperature sensor calibrated to ±3°C accuracy over −40°C to +85°C - enabling direct sensor interfacing without external components.
What power-saving modes are available on the R5F104FDDFP#V0, and what is the lowest current consumption?
The R5F104FDDFP#V0 offers HALT, STOP, and SNOOZE low-power modes. In STOP mode with only RTC and LVD active, it achieves 0.60 μA typical current consumption. SNOOZE mode allows selected peripherals (e.g., ADC, UART) to operate autonomously while the CPU remains asleep, further optimizing average system power in event-driven applications.
Is the R5F104FDDFP#V0 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 44-pin LQFP-0.8 mm pitch package - including R5F104FDDFP#V0, R5F104FGDFP#V0, and R5F104FEAFP#V0 - share identical pinouts and electrical characteristics. This enables seamless migration between memory/configurations without PCB redesign, provided peripheral register initialization matches the target variant's resource mapping.
What development tools and software support are available for the R5F104FDDFP#V0?
The R5F104FDDFP#V0 is fully supported by Renesas' CS+ IDE, e² studio (Eclipse-based), and the RL78/G14 Target Board. It integrates with the Renesas Flash Programmer, Smart Configurator for peripheral setup, and the RL78/G14 Firmware Integration Technology (FIT) modules - providing certified drivers for UART, ADC, timers, and ELC/DTC to accelerate firmware development and certification.
R5F104FDDFP#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:
R5F104FDDFP#V0 FAQ
1.How can I place an order for R5F104FDDFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104FDDFP#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 R5F104FDDFP#V0 reliable?
The price and inventory of R5F104FDDFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104FDDFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F104FDDFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104FDDFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104FDDFP#V0?
R5F104FDDFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104FDDFP#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 R5F104FDDFP#V0?
For technical support, including R5F104FDDFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104FDDFP#V0 requirements.
6.How does Aetrix verify that R5F104FDDFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104FDDFP#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 R5F104FDDFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F104FDDFP#V0?
All R5F104FDDFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104FDDFP#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 R5F104FDDFP#V0 part is unused and in its original packaging.
Return procedure for R5F104FDDFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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