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Renesas R5F104FCAFP#V0
- Part No.:
- R5F104FCAFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F104FCAFP#V0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,508
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Product details
Overview
R5F104FCAFP#V0 from Renesas is a 44-pin LQFP-44, 96 KB flash, 12 KB RAM RL78/G14 16-bit microcontroller operating from 1.6 V to 5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.60 μA in RTC+LVD mode), used in battery-powered industrial sensors and smart metering interfaces.
For engineers reviewing the R5F104FCAFP#V0 datasheet, R5F104FCAFP#V0 pinout, R5F104FCAFP#V0 application, or R5F104FCAFP#V0 equivalent, key selection criteria include its 44-pin LQFP package, 96 KB code flash with data flash support, integrated 10-bit ADC (20-channel), dual UART/LIN interfaces, and real-time clock with calendar function for time-stamped sensor logging.
Technical Context
The R5F104FCAFP#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 on-chip debug, self-programming with boot swap, and background operation for data flash rewriting.
It integrates event-driven peripherals including Event Link Controller (ELC) for 19–26 configurable event sources, Data Transfer Controller (DTC) with chain transfer, and multiple serial interfaces: up to 4 UART/LIN channels, 10 I²C/Simplified I²C channels, and 8 CSI channels - all configurable via peripheral I/O redirection registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/accumulate instructions |
| Max Operating Frequency | 32 MHz - delivers 44 DMIPS for deterministic real-time control loops |
| Flash Memory | 96 KB code flash + 8 KB data flash - supports secure block erase prohibition and BGO rewriting |
| RAM | 12 KB on-chip RAM - sufficient for RTOS stacks, communication buffers, and sensor fusion variables |
| ADC | 10-bit resolution, 20-channel SAR ADC with internal 1.45 V reference and temperature sensor |
| Power Supply Range | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 3.3 V, and 5 V subsystems without level shifters |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE - extends battery life in intermittent-sampling applications |
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 |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit output and timer input; supports trace clock generation for debugging |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive input and timer output; enables synchronous capture of external events |
| P10–P15 | SPI/I²C/UART peripheral multiplexing | Configurable serial interface pins (SCK11, SI11, SO11, SDA11, SCL11, etc.) assigned via PIOR registers |
| P16/P17 | RxD0/TxD0 / TI01/TI02 / TO01/TO02 | Dual-function UART I/O and independent 16-bit timer I/O for PWM generation or pulse counting |
| P20–P27 | ANI0–ANI7 / AVREFP/AVREFM | Analog input bank with dedicated reference voltage pins for high-accuracy sensor signal acquisition |
| P30/P31 | INTP3 / RTC1HZ / TI03 / TO03 | Real-time clock interrupt output and general-purpose timer I/O for wake-up and timing-critical tasks |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; compatible with external supervisor ICs |
| VDD/VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail operation; REGC capacitor required per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP modes | Enables multi-year battery life in wireless sensor nodes with periodic wake-up and measurement |
| Background data flash rewriting (BGO) | Allows firmware updates or parameter storage without halting application code execution |
| Event Link Controller (ELC) | Eliminates CPU overhead by directly linking peripherals (e.g., ADC trigger → DTC transfer → UART TX) |
| On-chip RTC with calendar | Provides accurate time-stamping for logged sensor data without external RTC IC or crystal |
| Peripheral I/O redirection (PIOR) | Permits flexible PCB layout by remapping serial and timer functions to alternate pins |
Applications
| Industrial Sensor Node | Smart Energy Meter Interface |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data hourly via UART-to-LoRaWAN bridge. IC Role / Device Role / Timing Role: Main controller executing sensor readout, calibration, low-power scheduling, and UART framing. Use Value: 0.60 μA STOP mode with RTC wake-up ensures >5-year CR2032 battery life; integrated 10-bit ADC eliminates external signal conditioning. | Use Scenario: Sub-metering module interfacing with metrology ICs and PLC communication stack. IC Role / Device Role / Timing Role: Communication gateway managing SPI-based energy IC reads and UART/LIN PLC protocol translation. Use Value: Dual UART/LIN + ELC enables deterministic latency for time-critical PLC responses; 96 KB flash hosts dual-application firmware images. |
| Home Appliance Control Panel | Building Automation Actuator |
Use Scenario: Touch-enabled HVAC control panel with LED backlight dimming and fan speed regulation. IC Role / Device Role / Timing Role: System manager handling capacitive touch sensing, PWM fan control, and display refresh timing. Use Value: On-chip PCLBUZ0/1 timers generate precise audio feedback tones; 20-channel ADC monitors thermistors and potentiometers directly. | Use Scenario: Motorized valve controller receiving Modbus RTU commands and reporting position feedback. IC Role / Device Role / Timing Role: Real-time actuator controller executing closed-loop PID, current sensing, and RS-485 communication. Use Value: 16-bit TAU timers provide sub-microsecond PWM resolution for smooth motor control; LIN interface supports automotive-grade diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GCAFP#V0 | 128 KB flash, 16 KB RAM, same 44-pin LQFP package and peripheral set | Supports larger firmware (e.g., embedded web server, OTA update stack) | Select when future firmware expansion or additional protocol stacks are anticipated |
| R5F104FCAFB#V0 | Same 96 KB flash/12 KB RAM, but 48-pin LFQFP (7×7 mm, 0.5 mm pitch) package | Offers 4 extra GPIOs and additional analog inputs (ANI8–ANI11) | Choose when board redesign allows finer-pitch QFP and requires more I/O or ADC channels |
Compared with R5F104FCAFP#V0, the R5F104GCAFP#V0 provides headroom for feature-rich firmware without changing PCB layout, while the R5F104FCAFB#V0 trades footprint compactness for expanded analog and digital I/O - both retain identical peripheral functionality and low-power behavior.
Availability
R5F104FCAFP#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering interfaces, and home appliance control panels requiring stable component supply across multi-year production cycles.
Supply support for R5F104FCAFP#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, and power solutions for industrial, automotive, and IoT markets.
The RL78/G14 product line targets cost-sensitive, ultra-low-power embedded applications demanding rich analog integration, robust communication peripherals, and long-term supply stability - especially in metering, sensing, and appliance control.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104FCAFP#V0?
The R5F104FCAFP#V0 operates up to 32 MHz using its high-speed on-chip oscillator, achieving 44 DMIPS of processing performance. Its RL78 CPU core supports variable instruction timing - from 0.03125 μs at full speed to 30.5 μs in ultra-low-speed 32.768 kHz RTC mode - enabling precise trade-offs between throughput and power consumption in the R5F104FCAFP#V0 design.
Does the R5F104FCAFP#V0 include integrated data flash memory, and what are its endurance specifications?
Yes, the R5F104FCAFP#V0 integrates 8 KB of data flash memory with 1,000,000 write/erase cycles (typical) and full operation across 1.8 V to 5.5 V supply range. It supports background operation (BGO), allowing program execution from code flash while rewriting data flash - a critical capability for firmware-over-the-air updates and nonvolatile parameter storage in the R5F104FCAFP#V0.
How many analog input channels does the R5F104FCAFP#V0 support, and what ADC resolution is available?
The R5F104FCAFP#V0 features a 10-bit successive approximation register (SAR) ADC with up to 20 analog input channels (ANI0–ANI19), including dedicated AVREFP/AVREFM pins for precision referencing. It also integrates an internal 1.45 V reference and a calibrated temperature sensor, enabling direct thermal monitoring and sensor signal conditioning without external components in the R5F104FCAFP#V0.
What serial communication interfaces are available on the R5F104FCAFP#V0, and how are they configured?
The R5F104FCAFP#V0 provides three UART/LIN channels, up to ten I²C/Simplified I²C channels, and eight CSI (SPI-compatible) channels. All are multiplexed across GPIO pins and dynamically assignable via Peripheral I/O Redirection Registers (PIOR0/PIOR1), allowing flexible PCB routing and runtime reconfiguration - a key differentiator for adaptable communication architecture in the R5F104FCAFP#V0.
What low-power modes does the R5F104FCAFP#V0 support, and what is the lowest achievable current draw?
The R5F104FCAFP#V0 supports HALT (66 μA/MHz), STOP (0.60 μA), and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.60 μA - verified across –40°C to +85°C - making it ideal for battery-backed applications where infrequent wake-up and timekeeping are essential, as implemented in the R5F104FCAFP#V0.
R5F104FCAFP#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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K 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:
R5F104FCAFP#V0 FAQ
1.How can I place an order for R5F104FCAFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104FCAFP#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 R5F104FCAFP#V0 reliable?
The price and inventory of R5F104FCAFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104FCAFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F104FCAFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104FCAFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104FCAFP#V0?
R5F104FCAFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104FCAFP#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 R5F104FCAFP#V0?
For technical support, including R5F104FCAFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104FCAFP#V0 requirements.
6.How does Aetrix verify that R5F104FCAFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104FCAFP#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 R5F104FCAFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F104FCAFP#V0?
All R5F104FCAFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104FCAFP#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 R5F104FCAFP#V0 part is unused and in its original packaging.
Return procedure for R5F104FCAFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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