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Renesas R5F104FCGFP#50
- Part No.:
- R5F104FCGFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F104FCGFP#50.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F104FCGFP#50 from Renesas is a 44-pin LQFP-packaged 16-bit RL78/G14 microcontroller with 16 KB flash, 2.5 KB RAM, and 4 KB data flash, operating from 1.6–5.5 V at -40 to +105°C (industrial G-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low-power HALT/STOP/SNOOZE modes (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates 10-bit ADC (16 ch), UART/LIN (3 ch), I²C (4 ch), and 16-bit timers (8 ch).
For engineers reviewing the R5F104FCGFP#50 datasheet, R5F104FCGFP#50 pinout, R5F104FCGFP#50 application, or R5F104FCGFP#50 equivalent, this device serves as a drop-in-capable, industrial-temperature MCU for cost-sensitive embedded control where low power, integrated analog peripherals, and LIN bus support are required.
Technical Context
The R5F104FCGFP#50 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), multiply/divide/accumulate instructions, and 1 MB address space. It includes on-chip high-accuracy ±1.0% oscillator (1–64 MHz selectable) and dedicated low-speed oscillator for watchdog timer operation.
Peripheral integration includes Event Link Controller (ELC) for hardware-triggered peripheral chaining, Data Transfer Controller (DTC) with block/repeat/normal transfer modes, and background operation (BGO) for concurrent code execution during data flash rewriting - enabling seamless firmware updates without halting real-time tasks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space, 44 DMIPS @ 32 MHz |
| Memory Configuration | 16 KB code flash (1 KB blocks), 4 KB data flash (1M rewrite cycles), 2.5 KB SRAM |
| Operating Voltage & Temp | 1.6–5.5 V supply; -40 to +105°C ambient (G-grade industrial) |
| Power Consumption | 66 μA/MHz active mode; 0.60 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC (16 input channels, internal 1.45 V reference, temp sensor), no D/A or comparator |
| Serial Interfaces | 3 × UART/LIN, 4 × I²C, 3 × CSI (SPI-compatible), all configurable via peripheral I/O redirection registers |
| Timers & Clock | 8 × 16-bit timers (TAU/Timer RJ/RD/RG), 1 × 12-bit interval timer, 1 × calendar RTC (99-year), 1 × WDT |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, industrial-grade G-temp rating (-40 to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART1 transmit; 16-bit timer input; trace clock A; supports TRJO0 alternate function |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART1 receive; 16-bit timer output; trace clock B; supports TRJIO0 alternate function |
| P10–P17 | CSI1/SPI1, UART2, I²C1, TRDIOD/C, SCK20/SCL20, etc. | Multiplexed serial interfaces with flexible peripheral I/O redirection (PIOR0/1); enables shared pin reuse across protocols |
| P20–P27 | ANI0–ANI7 / AVREFP/M / ANO0/1 | 10-bit ADC inputs (8 ch), analog reference pins, and analog output capability (2 ch max, not present on R5F104FC) |
| P30–P31 | INTP3 / RTC1HZ / SCK00 / SCL00 / TI03 / TO03 | Real-time clock 1 Hz output; I²C0 master clock; 16-bit timer I/O; interrupt source for wake-up from STOP |
| P50–P51 | SI00/RxD0/SDA00/TRGIOA & SO00/TxD0/TRGIOB | UART0 full-duplex I/O with tool interface (TOOLRxD/TOOLTxD); supports debug communication and bootloader access |
| P60–P62 | SCLA0 / SDAA0 / SSI00 | I²C0 slave address/data lines and synchronous serial interface (SSI) for daisy-chain expansion |
| P121–P122 | X1 / X2 / EXCLK | Crystal oscillator inputs (32.768 kHz or 1–20 MHz) or external clock input; enables precise timing and RTC accuracy |
| RESET / REGC / VDD / VSS | Reset input / regulator capacitor / power / ground | Hardware reset with internal POR/LVD; REGC requires 0.47–1 µF capacitor to VSS for stable internal voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA current draw with RTC and LVD active - enables multi-year battery life in metering and sensor nodes |
| Background data flash rewrite | Execute application code while updating 4 KB data flash (1M cycle endurance), critical for field firmware parameter storage |
| Peripheral I/O redirection | Dynamic assignment of functions (e.g., UART, I²C, CSI) to multiple pins via PIOR0/1 registers - simplifies PCB layout and design reuse |
| LIN bus compliance | UART channels support LIN 2.2 protocol with auto-sync, break detection, and checksum - certified for automotive body electronics |
| On-chip debug & self-programming | Fully supported via single-wire debug (SWD); boot swapping and flash shield window prevent unauthorized code modification |
Applications
| Smart Thermostats | Industrial Motor Controllers |
|---|---|
Use Scenario: Battery-powered HVAC control unit requiring temperature sensing, display driving, and wireless communication coordination. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling (temp/humidity), PWM fan control, LIN communication with zone actuators, and RTC-based scheduling. Use Value: 0.60 μA STOP mode extends AA battery life beyond 5 years; integrated LIN eliminates external transceiver; 16 KB flash accommodates OTA update stack. |
Use Scenario: Compact 3-phase BLDC motor drive for pumps/fans, needing current sensing, commutation logic, and fault reporting. IC Role / Device Role / Timing Role: Real-time motor control unit executing FOC algorithms using 10-bit ADC (current feedback), 16-bit timers (PWM generation), and UART for diagnostics. Use Value: 44 DMIPS at 32 MHz ensures sub-μs loop timing; 1.6–5.5 V operation tolerates wide input rail; G-grade temp rating supports enclosure mounting near motors. |
| Energy Meters | Automotive Body Control Modules |
Use Scenario: DIN-rail mounted electricity meter with metrology IC interface, tamper detection, and PLC/RF communication. IC Role / Device Role / Timing Role: System management MCU handling SPI communication with metrology ASIC, RTC-corrected billing, EEPROM emulation in data flash, and tamper GPIO monitoring. Use Value: Background data flash rewrite allows secure parameter updates without interrupting metering; 4 KB data flash replaces external EEPROM; 10-bit ADC monitors auxiliary sensors. |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN connectivity to central ECU. IC Role / Device Role / Timing Role: LIN slave node executing local actuator control, switch debouncing, and diagnostic reporting over LIN 2.2 physical layer. Use Value: Hardware LIN support reduces CPU load by >30%; G-grade temp range ensures reliability in door cavities; 16 KB flash hosts full LIN protocol stack + application logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104FGGFP#50 | 96 KB flash, 12 KB RAM, same 44-pin LQFP package and G-temp rating | Supports larger firmware (e.g., BLE stack + motor control), higher RAM for complex state machines | Select when firmware size exceeds 16 KB or real-time buffering requires >2.5 KB RAM |
| R5F104FEAFP#30 | 48 KB flash, 5.5 KB RAM, 44-pin LQFP, A-grade (-40 to +85°C) | Limited to consumer-grade environments; lacks extended temperature qualification | Choose only for cost-sensitive non-industrial designs where G-grade reliability is unnecessary |
Compared with R5F104FCGFP#50, R5F104FGGFP#50 provides scalable memory headroom for feature-rich firmware, while R5F104FEAFP#30 trades industrial qualification for lower cost - making R5F104FCGFP#50 the optimal balance of G-grade robustness, minimal footprint, and sufficient resources for basic control + LIN.
Availability
R5F104FCGFP#50 is available at Aetrix Electronics and suitable for smart thermostats, energy meters, and automotive body control modules requiring stable component supply, long-term industrial qualification, and consistent pinout across RL78/G14 family variants.
Supply support for R5F104FCGFP#50 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 product line targets cost-optimized, ultra-low-power general-purpose control applications - emphasizing energy efficiency, integrated analog peripherals, and functional safety readiness for industrial and automotive subsystems.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104FCGFP#50?
The R5F104FCGFP#50 operates up to 32 MHz using its high-speed on-chip oscillator, delivering 44 DMIPS. Its minimum instruction execution time is 0.03125 µs at 32 MHz, and it supports dynamic clock scaling down to 32.768 kHz (30.5 µs/instruction) for ultra-low-power RTC operation - all within the same R5F104FCGFP#50 device without external components.
Does the R5F104FCGFP#50 support LIN bus communication, and which UART channels implement it?
Yes, the R5F104FCGFP#50 supports LIN 2.2 protocol on UART channels 0, 1, and 2. Each channel includes hardware features like automatic sync field detection, break generation, and checksum calculation - eliminating software overhead. This capability is confirmed in the R5F104FCGFP#50's peripheral specification and is fully functional in its G-grade industrial temperature range.
What are the flash memory configuration and write endurance specifications for the R5F104FCGFP#50?
The R5F104FCGFP#50 contains 16 KB of code flash memory organized in 1 KB blocks and 4 KB of data flash memory. The data flash supports 1,000,000 write/erase cycles (typical) and operates across the full 1.8–5.5 V supply range. Background operation (BGO) allows concurrent program execution during data flash rewriting - a verified feature of the R5F104FCGFP#50 per Renesas documentation.
Is the R5F104FCGFP#50 qualified for industrial temperature operation, and what is its exact rating?
Yes, the R5F104FCGFP#50 is explicitly rated for industrial applications with an operating ambient temperature range of -40 to +105°C (G-grade). This qualification is encoded in the part number suffix 'G' and confirmed in Table 1-1 of the RL78/G14 datasheet - distinguishing it from A-grade (-40 to +85°C) and D-grade (-40 to +85°C) variants of the same family.
What debug interface does the R5F104FCGFP#50 support, and is on-chip debug functionality included?
The R5F104FCGFP#50 supports single-wire debug (SWD) via the TOOL0 pin (P40) and includes full on-chip debug functionality - including breakpoints, watchpoints, and real-time variable inspection. This is implemented in silicon and documented in the R5F104FCGFP#50's debug chapter; no external debug probe license or additional hardware is required beyond standard SWD adapters.
R5F104FCGFP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104FCGFP#50 FAQ
1.How can I place an order for R5F104FCGFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104FCGFP#50 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 R5F104FCGFP#50 reliable?
The price and inventory of R5F104FCGFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104FCGFP#50 is usually 5 days.
3.What payment methods are accepted for R5F104FCGFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104FCGFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104FCGFP#50?
R5F104FCGFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104FCGFP#50 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 R5F104FCGFP#50?
For technical support, including R5F104FCGFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104FCGFP#50 requirements.
6.How does Aetrix verify that R5F104FCGFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F104FCGFP#50 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 R5F104FCGFP#50 meets industry standards.
7.What is the process for return or replacement of R5F104FCGFP#50?
All R5F104FCGFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104FCGFP#50, 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 R5F104FCGFP#50 part is unused and in its original packaging.
Return procedure for R5F104FCGFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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