Renesas R5F104GCGFB#V0
- Part No.:
- R5F104GCGFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F104GCGFB#V0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104GCGFB#V0 from Renesas is a 48-pin LFQFP, 0.5 mm pitch, industrial-grade (−40 to +105°C) RL78/G14 16-bit microcontroller with 128 KB flash, 12 KB RAM, and 8 KB data flash. It integrates a 32 MHz RL78 CPU core delivering 44 DMIPS, ultra-low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD), and peripherals including 10-channel 10-bit ADC, dual UART/LIN, I²C, CSI, RTC, and 12-channel 16-bit timers - deployed in smart metering and industrial sensor nodes.
For engineers reviewing the R5F104GCGFB#V0 datasheet, R5F104GCGFB#V0 pinout, R5F104GCGFB#V0 application, or R5F104GCGFB#V0 equivalent, key selection criteria include its G-grade temperature rating, LFQFP-48 package compatibility with high-density PCB layouts, integrated LIN-capable UART for automotive body electronics, and hardware DTC/ELC for deterministic low-CPU-load peripheral coordination.
Technical Context
The R5F104GCGFB#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It supports on-chip debug, self-programming with boot swap, and background data flash rewriting (BGO) at VDD = 1.8–5.5 V.
Its power management includes HALT/STOP/SNOOZE modes, on-chip POR and 14-level LVD, and a high-accuracy ±1.0% on-chip oscillator (1–64 MHz). Peripheral integration centers on event-driven operation via ELC (26 event sources) and DMA-like DTC with chain transfer support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and multiply/divide/accumulate instructions |
| Max Operating Frequency | 32 MHz - delivers 44 DMIPS for real-time control loop execution |
| Flash Memory | 128 KB code flash with 1 KB block erase, security lock, and on-chip debug |
| Data Flash | 8 KB with 1,000,000 write cycles and background operation (BGO) |
| RAM | 12 KB on-chip RAM - sufficient for RTOS stacks and sensor data buffering |
| ADC | 10-bit resolution, 20-channel input, internal 1.45 V reference and temperature sensor |
| Timers | 12 × 16-bit timer channels (TAU/Timer RJ/RD/RG), 1 × 12-bit interval timer, RTC with calendar/alarm |
| Serial Interfaces | 3 × UART/LIN, 4 × I²C/simplified I²C, 3 × CSI (SPI-compatible), all with ELC-triggered operation |
Pinout & Package
Package: 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, industrial temperature grade (−40 to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Multi-function I/O (SCK11/SDA11/TO01/INTP5/etc.) | Configurable peripheral interface pins supporting UART, I²C, SPI, timers, and interrupts - assigned via PIOR registers |
| P20–P27 | Analog inputs (ANI0–ANI7), AVREFP/AVREFM, ANO0/ANO1 | Dedicated analog front-end with differential reference support for precision sensor signal acquisition |
| P50/P51 | UART0 RX/TX (RxD0/TxD0), TOOLRxD/TOOLTxD | Primary debug and communication interface with hardware flow control capability |
| P121/P122 | Crystal oscillator inputs (X1/X2/EXCLK) | Supports external 32.768 kHz crystal for RTC accuracy or high-frequency crystal up to 20 MHz |
| RESET, REGC, VDD, VSS | Reset control, regulator capacitor, power supply | REGC requires 0.47–1 μF capacitor to VSS for stable internal voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 66 μA/MHz active current enables battery-powered operation >5 years in sensor wake-on-event mode |
| Hardware event linkage (ELC) | 26 event sources directly trigger peripherals without CPU intervention - reduces latency and firmware overhead |
| Data flash BGO | Execute code from flash while rewriting data flash - enables seamless firmware updates and logging |
| LIN-compliant UART | UART channels support LIN 2.2 physical layer timing and protocol framing for automotive sub-system integration |
| On-chip RTC with calendar | 99-year calendar, alarm, and clock correction - eliminates need for external real-time clock IC |
| Peripheral I/O redirection | PIOR0/PIOR1 registers enable dynamic remapping of serial/timer functions to alternate pins - improves PCB layout flexibility |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Bidirectional energy measurement with tamper detection, time-of-use billing, and PLC/GPRS communication. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing secure flash storage, and coordinating UART/LIN/RTC for time-stamped events. Use Value: Integrated 10-bit ADC with internal reference and 8 KB data flash enable accurate analog sensing and long-term event logging without external components. | Use Scenario: Wireless condition-monitoring node measuring temperature, vibration, and humidity in factory environments. IC Role / Device Role / Timing Role: Low-power system orchestrator sampling sensors via ADC, processing data, and triggering UART/LIN transmission upon threshold breach. Use Value: SNOOZE mode + ELC-triggered ADC conversion reduces average current to <10 μA during idle, extending battery life to 10+ years. |
| Automotive Body Control | Home Appliance MCU |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting via LIN network. IC Role / Device Role / Timing Role: LIN master node managing multiple slave ECUs, executing PWM motor control, and monitoring switch inputs with key interrupt. Use Value: Dual LIN-capable UARTs and N-ch open-drain I/O (6 V tolerant) allow direct connection to LIN transceivers and mechanical switches without level shifters. | Use Scenario: Washing machine main board handling motor control, water valve actuation, user interface, and safety monitoring. IC Role / Device Role / Timing Role: Real-time executor of PID motor control loops, buzzer output, RTC-based cycle timing, and fault-safe shutdown via LVD. Use Value: 44 DMIPS performance, on-chip 8-bit DAC for buzzer drive, and 0.60 μA STOP mode with RTC/LVD ensure responsive UI and fail-safe operation during power brownouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GGGFB#V0 | Same package and pinout; 128 KB flash, 12 KB RAM, but rated for −40 to +85°C (D-grade) | Suitable for consumer or non-extended-temperature industrial use; lacks G-grade thermal margin | Select when ambient operating temperature stays ≤+85°C and cost optimization is prioritized over extended thermal range |
| R5F104GLGFB#V0 | Same package and pinout; 256 KB flash, 24 KB RAM, 8 KB data flash, G-grade | Provides headroom for larger firmware, additional data logging, or future feature expansion | Select when firmware size exceeds 128 KB or sustained data buffering >8 KB is required in same footprint |
Compared with R5F104GCGFB#V0, R5F104GGGFB#V0 offers identical functionality at lower temperature rating and cost, while R5F104GLGFB#V0 provides scalable memory headroom within the same LFQFP-48 footprint and thermal specification - enabling design reuse across product tiers.
Availability
R5F104GCGFB#V0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and automotive body electronics requiring stable component supply, long lifecycle assurance, and G-grade industrial qualification.
Supply support for R5F104GCGFB#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 targets cost-sensitive, ultra-low-power embedded applications demanding high integration, robust industrial qualification, and toolchain maturity - optimized for metering, sensing, and control systems.
FAQ
What is the maximum operating frequency and core performance of the R5F104GCGFB#V0?
The R5F104GCGFB#V0 operates at up to 32 MHz using the RL78 CPU core, delivering 44 DMIPS of processing performance. Its instruction timing is configurable from 0.03125 μs (high-speed mode) to 30.5 μs (ultra-low-speed mode), enabling precise trade-offs between throughput and power consumption. This makes the R5F104GCGFB#V0 suitable for deterministic real-time tasks such as motor control and sensor fusion without requiring external acceleration.
Does the R5F104GCGFB#V0 support LIN bus communication?
Yes, the R5F104GCGFB#V0 supports LIN bus communication through its UART peripherals, which are compliant with LIN 2.2 physical layer timing and protocol framing requirements. Two UART channels (e.g., UART0 and UART2) can be configured for LIN master/slave operation, and the ELC allows automatic frame transmission/reception triggered by timer or GPIO events - reducing CPU load in automotive body control modules where the R5F104GCGFB#V0 is commonly deployed.
What are the memory resources available on the R5F104GCGFB#V0?
The R5F104GCGFB#V0 integrates 128 KB of code flash memory, 12 KB of on-chip RAM, and 8 KB of data flash memory. The data flash supports background operation (BGO), allowing program execution from code flash while simultaneously rewriting data flash - essential for firmware updates and non-volatile event logging. All flash types support security features including block erase prohibition and flash shield window protection.
What is the operating temperature range and package type of the R5F104GCGFB#V0?
The R5F104GCGFB#V0 is qualified for industrial operation from −40°C to +105°C (G-grade) and housed in a 48-pin LFQFP package with 7 × 7 mm body and 0.5 mm pin pitch. This package supports fine-pitch PCB assembly and provides thermal performance suitable for enclosed industrial enclosures. The G-grade rating ensures reliable operation in demanding environments such as smart meters and factory automation controllers.
How does the R5F104GCGFB#V0 achieve ultra-low-power operation?
The R5F104GCGFB#V0 achieves ultra-low-power operation through multiple hardware features: HALT/STOP/SNOOZE low-power modes, a 0.60 μA RTC+LVD-only mode, 66 μA/MHz active current, and an on-chip high-accuracy ±1.0% oscillator eliminating external crystal needs in many cases. Combined with ELC-triggered peripheral operation and DTC-based data movement, the R5F104GCGFB#V0 minimizes CPU wakeups - enabling multi-year battery life in wireless sensor nodes and portable industrial tools.
R5F104GCGFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 34
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104GCGFB#V0 FAQ
1.How can I place an order for R5F104GCGFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GCGFB#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 R5F104GCGFB#V0 reliable?
The price and inventory of R5F104GCGFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GCGFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F104GCGFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104GCGFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104GCGFB#V0?
R5F104GCGFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GCGFB#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 R5F104GCGFB#V0?
For technical support, including R5F104GCGFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GCGFB#V0 requirements.
6.How does Aetrix verify that R5F104GCGFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104GCGFB#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 R5F104GCGFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F104GCGFB#V0?
All R5F104GCGFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GCGFB#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 R5F104GCGFB#V0 part is unused and in its original packaging.
Return procedure for R5F104GCGFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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