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Renesas R5F104FCDFP#X0
- Part No.:
- R5F104FCDFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F104FCDFP#X0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,487
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Product details
Overview
R5F104FCDFP#X0 from Renesas is a 44-pin LQFP, 16 KB flash, 2.5 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 battery-powered industrial sensor nodes and smart metering interfaces.
For engineers reviewing the R5F104FCDFP#X0 datasheet, R5F104FCDFP#X0 pinout, R5F104FCDFP#X0 application, or R5F104FCDFP#X0 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm package, 16 KB code flash with data flash support, integrated 10-bit ADC (20-channel), real-time clock with calendar, and UART/SPI/I²C peripheral set for embedded control in space-constrained, low-power designs.
Technical Context
The R5F104FCDFP#X0 implements the RL78 CPU core with 3-stage pipeline, 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 a 10-bit A/D converter with up to 20 analog inputs, internal 1.45 V reference and temperature sensor, dual UART channels (one with LIN support), four I²C interfaces, and three CSI (SPI-compatible) channels - all configurable via peripheral I/O redirection registers (PIOR0/1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Operating Voltage | 1.6–5.5 V - enables direct interface with 1.8/2.5/3.3 V peripherals without level shifters |
| Flash Memory | 16 KB code flash + 4 KB data flash - supports secure block erase prohibition and BGO rewriting |
| RAM Size | 2.5 KB on-chip RAM - sufficient for real-time control stacks and small buffers |
| ADC Resolution | 10-bit SAR ADC with 20 input channels and internal 1.45 V reference - eliminates external reference need for precision sensing |
| Real-Time Clock | Calendar-mode RTC with alarm and clock correction - provides accurate timekeeping for metering and logging |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE - extends battery life in intermittent-sensing applications |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, industrial-grade (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit output and timer input - supports serial comms and event-triggered capture |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive input and timer output - enables full-duplex comms and pulse generation |
| P10–P15 | SPI/I²C/UART peripheral pins | Configurable CSI0/1, I²C0/1/2/3, UART0/1/2 - allows flexible peripheral mapping without PCB changes |
| P16–P17 | INTP5 / INTP4 / TRDIOx | Dual interrupt-capable timer I/O - supports quadrature decoding and edge-triggered wake-up |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM | Eight analog input channels with dedicated reference pins - enables ratiometric sensor measurements |
| P30–P31 | INTP3 / RTC1HZ / TI03 / TO03 | RTC interrupt output and general-purpose timer I/O - synchronizes firmware tasks to real-time events |
| P60–P61 | SCLA0 / SDAA0 | Dedicated I²C bus interface - supports multi-drop sensor networks with hardware arbitration |
| RESET | Active-low reset input | Asynchronous reset with internal POR/LVD - ensures reliable startup under brown-out conditions |
| VDD / VSS | Power supply pins | Single 1.6–5.5 V rail with decoupling via REGC capacitor - simplifies power design |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 66 μA/MHz active current enables >5-year battery life in 10-second wakeup interval sensor nodes |
| Background data flash rewrite | 1,000,000 write cycles with BGO allows firmware updates without halting real-time control tasks |
| Peripheral I/O redirection | PIOR0/1 registers enable dynamic remapping of UART/SPI/I²C to alternate pins - increases layout flexibility |
| Integrated RTC with calendar | 99-year calendar, alarm, and auto-correction eliminate external RTC IC and reduce BOM cost |
| On-chip voltage detector | 14-level LVD with interrupt/reset options enables precise brown-out detection and graceful shutdown |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Embedded controller in DIN-rail mounted electricity meters performing tariff switching, pulse counting, and RS-485 communication. IC Role / Device Role / Timing Role: Main system MCU managing metrology interface, real-time billing logic, and secure firmware updates. Use Value: Integrated 10-bit ADC with internal reference and RTC calendar enables accurate energy accumulation and timestamped logging without external components. | Use Scenario: Battery-powered wireless node monitoring temperature, humidity, and vibration in factory equipment. IC Role / Device Role / Timing Role: Low-power host MCU acquiring sensor data, executing local thresholds, and triggering BLE/Wi-Fi transmission. Use Value: 0.60 μA STOP mode with RTC wake-up and 20-channel ADC allow multi-year operation on coin-cell batteries. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Central control unit in HVAC systems managing fan speed, valve actuation, and user interface feedback. IC Role / Device Role / Timing Role: Real-time motor control MCU with PWM outputs, analog sensing, and touch-button interface. Use Value: On-chip PCLBUZ0/1 and programmable I/O enable buzzer alerts and LED dimming without external drivers. | Use Scenario: Local controller in lighting or access control panels interfacing with DALI, KNX, or Modbus RTU networks. IC Role / Device Role / Timing Role: Protocol bridge MCU handling physical layer translation and command scheduling. Use Value: Dual UARTs (one LIN-capable) and four I²C interfaces support concurrent legacy and modern building bus protocols. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BCDFP#X0 | Same 44-pin LQFP package, 32 KB flash, 4 KB RAM, identical peripheral set and pinout | Higher flash/RAM supports larger protocol stacks (e.g., full Modbus TCP) and extended data logging | Select when firmware size exceeds 16 KB or additional RAM is needed for buffering |
| R5F104GCDFP#X0 | Same 44-pin LQFP package, 128 KB flash, 12 KB RAM, identical peripheral set and pinout | Enables complex HMI rendering, OTA update capability, and multi-sensor fusion algorithms | Select when future-proofing for feature expansion or integrating advanced control algorithms |
Compared with R5F104BCDFP#X0 and R5F104GCDFP#X0, the R5F104FCDFP#X0 offers optimal balance of cost, footprint, and resources for cost-sensitive, space-constrained industrial controls where 16 KB flash suffices for stable firmware deployment.
Availability
R5F104FCDFP#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across long production lifecycles.
Supply support for R5F104FCDFP#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/G14 product line delivers true low-power performance for general-purpose embedded control, targeting battery-operated sensors, metering, and appliance applications where energy efficiency and integration are critical.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F104FCDFP#X0?
The R5F104FCDFP#X0 operates up to 32 MHz with a typical active current of 66 μA/MHz at VDD = 3.3 V and TA = 25°C. At full speed, this equates to ~2.1 mA total supply current, enabling high-performance real-time control while maintaining ultra-low power efficiency. The device also supports lower-frequency modes (e.g., 32.768 kHz RTC) drawing only 0.60 μA in STOP mode.
Does the R5F104FCDFP#X0 support in-system programming and secure firmware updates?
Yes, the R5F104FCDFP#X0 supports full in-system programming via on-chip debug interface and includes flash shield window and block erase prohibition features to prevent unauthorized rewriting. Its self-programming capability with boot swap function allows safe dual-bank firmware updates without interrupting real-time operation.
How many analog input channels does the R5F104FCDFP#X0 ADC support, and what reference options are available?
The R5F104FCDFP#X0 integrates a 10-bit successive approximation ADC with up to 20 analog input channels (ANI0–ANI19). It supports both external reference voltages and an internal 1.45 V reference, enabling ratiometric measurements and eliminating the need for external reference ICs in most sensing applications.
Can the R5F104FCDFP#X0 operate reliably across industrial temperature ranges?
Yes, the R5F104FCDFP#X0 is rated for operation from −40°C to +85°C (industrial grade, 'D' suffix), meeting JEDEC JESD22-A104 reliability standards. Its on-chip voltage detector (LVD) with 14 selectable threshold levels ensures robust behavior during voltage transients across the full temperature range.
What communication interfaces are integrated into the R5F104FCDFP#X0, and are they pin-mappable?
The R5F104FCDFP#X0 integrates three CSI (SPI-compatible) channels, three UART channels (one with LIN support), and four I²C interfaces. All serial peripherals support pin remapping via Peripheral I/O Redirection Registers (PIOR0/1), allowing flexible PCB layout and functional reuse of I/O pins without hardware modification.
R5F104FCDFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G14
- 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:
- 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:
R5F104FCDFP#X0 FAQ
1.How can I place an order for R5F104FCDFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104FCDFP#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 R5F104FCDFP#X0 reliable?
The price and inventory of R5F104FCDFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104FCDFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F104FCDFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104FCDFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104FCDFP#X0?
R5F104FCDFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104FCDFP#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 R5F104FCDFP#X0?
For technical support, including R5F104FCDFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104FCDFP#X0 requirements.
6.How does Aetrix verify that R5F104FCDFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F104FCDFP#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 R5F104FCDFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F104FCDFP#X0?
All R5F104FCDFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104FCDFP#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 R5F104FCDFP#X0 part is unused and in its original packaging.
Return procedure for R5F104FCDFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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