Renesas R5F104GCGFB#10
- Part No.:
- R5F104GCGFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F104GCGFB#10.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,000
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Product details
Overview
R5F104GCGFB#10 from Renesas is a 48-pin LFQFP-packaged 16-bit RL78/G14 microcontroller with 128 KB flash, 12 KB RAM, and industrial-grade operation up to +105°C. 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 UART, I²C, SPI, 16-bit timers, 10-bit ADC (16 channels), and on-chip RTC with calendar support - deployed in smart metering and industrial sensor nodes.
For engineers reviewing the R5F104GCGFB#10 datasheet, R5F104GCGFB#10 pinout, R5F104GCGFB#10 application, or R5F104GCGFB#10 equivalent, key selection considerations include its G-grade temperature range (−40°C to +105°C), LFQFP-48 0.5 mm pitch package, 128 KB code flash with data flash shield window, and integrated event link controller (ELC) for deterministic peripheral triggering without CPU intervention.
Technical Context
The R5F104GCGFB#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed mode) to 30.5 µs (32.768 kHz ultra-low-speed mode). It includes multiply/divide/accumulate instructions and a 1 MB address space.
Its peripheral set is orchestrated via Event Link Controller (ELC) with 26 configurable event sources and Data Transfer Controller (DTC) supporting chain transfer, enabling autonomous low-latency data movement between memory and peripherals like ADC, UART, and timers - critical for deterministic real-time control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low interrupt latency for real-time embedded control. |
| Max Clock Speed | 32 MHz (44 DMIPS); sufficient for motor control, sensor fusion, and protocol stack execution without external acceleration. |
| Flash / RAM | 128 KB code flash + 4 KB data flash + 12 KB SRAM; supports firmware updates via self-programming with boot swapping. |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE; enables battery-powered operation >10 years in metering applications. |
| Analog Peripherals | 10-bit ADC (16 ch, VDD-referenced), 8-bit DAC (2 ch), 2 comparators; supports precision analog sensing and actuator feedback. |
| Timers & RTC | 12× 16-bit timers (TAU/TIMER-RJ/RD/RG), 12-bit interval timer, calendar RTC (99-year support, alarm, correction); eliminates need for external timekeeping ICs. |
| Serial Interfaces | 3× UART/LIN, 4× I²C/simplified I²C, 3× CSI (SPI-compatible); provides native connectivity to sensors, displays, and automotive LIN networks. |
Pinout & Package
Package: 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch), industrial-grade (G-temp: −40°C to +105°C), lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 | Crystal input (low-speed) | Connects to 32.768 kHz tuning-fork crystal for RTC accuracy; enables calendar functions and ultra-low-power wake-up. |
| P122 / X2 / EXCLK | Crystal output / external clock input | Drives 32.768 kHz crystal; alternatively accepts external clock source for system timing flexibility. |
| P137 / INTP0 | External interrupt input | Dedicated wake-up/interrupt pin with programmable sensitivity; used for emergency shutdown or sensor edge detection. |
| P14 / RxD2 / SI20 / SDA20 | Multi-function serial input | Configurable as UART receive, SPI slave-in, or I²C data line - reduces pin count while supporting multiple protocols. |
| P16 / TI01 / TO01 / INTP5 | Timer input/output / interrupt | Supports input capture (TI01), PWM output (TO01), and external interrupt (INTP5); enables motor phase control and encoder counting. |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF capacitor to VSS for internal LDO stability; omission causes erratic reset behavior or brown-out. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.60 μA in STOP mode with RTC + LVD active - extends battery life in wireless sensor nodes beyond 10 years. |
| Event Link Controller (ELC) | Links 26 peripheral events (e.g., ADC end-of-conversion → DMA trigger) without CPU involvement, reducing latency and power. |
| Data Flash with BGO | 4 KB data flash supports background operation: CPU executes from main flash while rewriting data flash - enables seamless firmware parameter updates. |
| On-chip debug & security | Integrated on-chip debug interface with flash shield window and block erase prohibition - prevents unauthorized firmware extraction or modification. |
| Multi-voltage I/O | I/O pins tolerate 1.8 V, 2.5 V, and 3.3 V logic levels - simplifies interfacing with mixed-voltage peripherals without level shifters. |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Residential electricity/water/gas meter with tamper detection, pulse counting, and RF communication. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing RTC-based billing cycles, and handling secure firmware updates. Use Value: 128 KB flash stores dual firmware images (A/B swap), 4 KB data flash retains lifetime consumption logs, and G-grade temp rating ensures reliability in outdoor enclosures. |
Use Scenario: Wireless vibration/temperature/humidity node in factory predictive maintenance systems. IC Role / Device Role / Timing Role: Sensor hub aggregating analog/digital inputs, performing FFT preprocessing, and scheduling LoRaWAN transmissions. Use Value: SNOOZE mode enables 10-second wake intervals with sub-μA average current; ELC-triggered ADC sampling avoids CPU polling overhead. |
| Automotive Body Control | Home Appliance MCU |
|
Use Scenario: LIN-connected door module controlling window lift, mirror adjustment, and interior lighting. IC Role / Device Role / Timing Role: LIN transceiver interface MCU with PWM-driven motor control and fault-safe diagnostics. Use Value: Integrated LIN-capable UART with automatic sync-break detection reduces BOM cost; 16-bit timers generate precise 20 kHz motor drive PWM. |
Use Scenario: Washing machine main board managing motor control, water valve sequencing, and user interface. IC Role / Device Role / Timing Role: Real-time executor of PID temperature control, spin balance correction, and safety interlock monitoring. Use Value: On-chip RTC synchronizes cycle timers; 10-bit ADC reads NTC thermistors with internal 1.45 V reference; 2× DAC drives analog display backlight. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GGGFB#10 | Same package and pinout; 128 KB flash, but 16 KB RAM (vs. 12 KB) and 8 KB data flash (vs. 4 KB). | Better suited for applications requiring larger runtime buffers or more frequent data logging. | Select when additional RAM or data flash endurance (1M rewrite cycles) is required without changing PCB layout. |
| R5F104GJGFB#10 | Same package and pinout; 256 KB flash, 20 KB RAM, 8 KB data flash - higher memory density variant. | Targeted at feature-rich appliances or gateways needing larger protocol stacks or OTA update partitions. | Choose when future firmware expansion headroom or concurrent multi-protocol support (e.g., BLE + Zigbee stack) is needed. |
Compared with R5F104GCGFB#10, R5F104GGGFB#10 offers greater data retention capacity and buffer space for complex logging, while R5F104GJGFB#10 provides scalable flash for evolving feature sets - both maintain identical peripheral configuration, timing, and thermal performance in the same LFQFP-48 footprint.
Availability
R5F104GCGFB#10 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F104GCGFB#10 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 family targets cost-sensitive, ultra-low-power general-purpose applications - balancing performance, integration, and energy efficiency for battery-operated and thermally constrained embedded systems.
FAQ
What is the operating temperature range for the R5F104GCGFB#10?
The R5F104GCGFB#10 is rated for industrial operation from −40°C to +105°C (G-grade), validated per JEDEC JESD22-A108. This makes it suitable for under-hood automotive modules, outdoor utility meters, and factory-floor controllers where ambient temperatures exceed standard commercial limits. The device maintains full functionality and timing specifications across this full range.
Does the R5F104GCGFB#10 support in-system programming via standard interfaces?
Yes, the R5F104GCGFB#10 supports in-system programming using the on-chip debug interface via dedicated SWD pins (P137/INTP0, P121/X1, P122/X2, RESET). It enables full flash read/write/erase, data flash BGO operations, and secure boot swapping - all without removing the device from the target board. No external programmer hardware is required beyond a standard SWD debugger.
How many analog input channels does the R5F104GCGFB#10 support, and what is the reference voltage option?
The R5F104GCGFB#10 integrates a 10-bit successive-approximation ADC with 16 analog input channels (ANI0–ANI18, excluding reserved pins). It supports VDD as the reference voltage and includes an internal 1.45 V reference for ratiometric measurements independent of supply variation - critical for precision sensor signal conditioning in varying power conditions.
Can the R5F104GCGFB#10 operate from a single 1.8 V supply?
Yes, the R5F104GCGFB#10 operates across a 1.6 V to 5.5 V supply range, including stable execution at 1.8 V. At this voltage, maximum clock speed is reduced to 16 MHz (per datasheet Table 12.1), delivering 22 DMIPS while maintaining full peripheral functionality - ideal for energy-harvesting or coin-cell-powered designs where low-voltage operation is mandatory.
What packaging and compliance certifications apply to the R5F104GCGFB#10?
The R5F104GCGFB#10 is supplied in a 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch) package, compliant with JEDEC MO-220 and RoHS Directive 2011/65/EU. It meets Renesas' industrial-grade reliability standards, including MSL Level 3 moisture sensitivity and 1000-cycle reflow compatibility. Lead finish is matte tin, and the device is halogen-free per IEC 61249-2-21.
R5F104GCGFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- 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:
- 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):
- 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:
R5F104GCGFB#10 FAQ
1.How can I place an order for R5F104GCGFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GCGFB#10 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#10 reliable?
The price and inventory of R5F104GCGFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GCGFB#10 is usually 5 days.
3.What payment methods are accepted for R5F104GCGFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104GCGFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104GCGFB#10?
R5F104GCGFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GCGFB#10 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#10?
For technical support, including R5F104GCGFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GCGFB#10 requirements.
6.How does Aetrix verify that R5F104GCGFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F104GCGFB#10 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#10 meets industry standards.
7.What is the process for return or replacement of R5F104GCGFB#10?
All R5F104GCGFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GCGFB#10, 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#10 part is unused and in its original packaging.
Return procedure for R5F104GCGFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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