Renesas R5F104GKGFB#30
- Part No.:
- R5F104GKGFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F104GKGFB#30.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:328
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Product details
Overview
R5F104GKGFB#30 from Renesas is a 48-pin LFQFP, industrial-grade (−40°C to +105°C) RL78/G14 16-bit MCU with 384 KB flash, 8 KB data flash, 24 KB RAM, 10-bit A/D converter (20 channels), and real-time clock. It delivers 44 DMIPS at 32 MHz and supports ultra-low-power operation (66 μA/MHz active, 0.60 μA in RTC+LVD mode), targeting battery-powered industrial control and sensor interface applications.
For engineers reviewing the R5F104GKGFB#30 datasheet, R5F104GKGFB#30 pinout, R5F104GKGFB#30 application, or R5F104GKGFB#30 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm pitch package, −40°C to +105°C industrial temperature grade, integrated RTC with calendar/alarm, and support for background data flash rewriting (BGO) while executing code from program memory.
Technical Context
The R5F104GKGFB#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs min @ 32 MHz to 30.5 µs @ 32.768 kHz). It integrates an Event Link Controller (ELC) enabling direct peripheral-to-peripheral event triggering without CPU intervention across 19–26 signal types.
Its power management includes HALT, STOP, and SNOOZE modes, on-chip POR and LVD (14 selectable voltage levels), and a high-accuracy ±1.0% on-chip oscillator (selectable from 1–64 MHz). The device supports simultaneous serial interfaces: up to 8 CSI, 4 UART/LIN, and 10 I²C channels - all configurable via peripheral I/O redirection registers.
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 (44 DMIPS), with high-accuracy ±1.0% on-chip oscillator (1–64 MHz selectable) |
| Memory Configuration | 384 KB code flash (1 KB block size), 8 KB data flash (1M rewrite cycles), 24 KB RAM |
| Power Consumption | 66 μA/MHz active current; 0.60 μA in STOP mode with RTC + LVD active |
| Analog Peripherals | 10-bit A/D converter (20 input channels, internal 1.45 V reference & temp sensor), 8-bit D/A (2 channels, 0–VDD output) |
| Timer Resources | 12-channel 16-bit timer array (TAU), 1× 12-bit interval timer, 1× RTC (99-year calendar, alarm, correction), 1× watchdog |
| Serial Interfaces | Up to 8 CSI, 4 UART/LIN, 10 I²C - all supported simultaneously with flexible pin assignment via PIOR registers |
Pinout & Package
Package: 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch), industrial temperature grade (−40°C to +105°C), lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; 16-bit timer input; trace clock A - supports debug and timing-critical comms |
| P16 | RxD0 / TI01 / TO01 / INTP5 | UART receive; dual-function timer I/O; external interrupt - enables hardware handshaking and precise event capture |
| P60 | SCLA0 | I²C bus clock line for channel 0 - supports multi-master arbitration and standard/fast-mode (100/400 kHz) |
| P121 / P122 | X1 / X2 | Crystal oscillator inputs for external 32.768 kHz RTC crystal - enables accurate calendar timekeeping and low-power wake-up |
| REGC | Regulator capacitor terminal | Requires 0.47–1 µF capacitor to VSS for internal voltage regulator stability - mandatory for reliable low-voltage operation |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; accepts external reset signals or watchdog timeout assertion |
Key Features
| Feature | Design Value |
|---|---|
| Background Data Flash Operation (BGO) | Enables full CPU execution from program memory while rewriting data flash - eliminates firmware stalls during field updates |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 peripheral events (e.g., ADC end-of-conversion → DMA trigger) - reduces CPU load and latency |
| Ultra-Low-Power STOP Mode | 0.60 μA consumption with RTC + LVD active - sustains timekeeping and voltage monitoring during extended sleep |
| Peripheral I/O Redirection | Dynamic remapping of serial, timer, and analog functions via PIOR0/PIOR1 registers - simplifies PCB layout and firmware reuse |
| On-Chip Debug Support | Fully integrated debug interface with SWD/JTAG-compatible access - enables real-time trace, breakpoints, and flash programming without external probes |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via analog and I²C sensors. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, RTC-scheduled sampling, low-power sleep/wake cycles, and wireless data upload. Use Value: 0.60 μA STOP mode extends 10-year battery life; 20-channel 10-bit A/D supports multi-sensor analog front-end; BGO enables seamless OTA firmware updates. | Use Scenario: Wall-mounted HVAC control unit regulating fan speed, valve position, and zone temperature using PWM and analog feedback. IC Role / Device Role / Timing Role: Real-time actuator coordinator with precise PWM generation, analog loop control, and LIN bus communication to compressors and dampers. Use Value: 12-channel 16-bit TAU provides independent PWM outputs for multiple fans/valves; LIN support ensures interoperability with legacy HVAC subsystems. |
| Programmable Logic Relay | Energy Metering Interface |
Use Scenario: DIN-rail mounted relay module executing user-defined logic (AND/OR/timers) for machine safety interlocks and sequence control. IC Role / Device Role / Timing Role: Deterministic logic engine with fast GPIO response, programmable timers, and isolated digital I/O supervision. Use Value: ELC links external interrupt edges directly to timer starts/stops - achieves sub-microsecond reaction; 44 DMIPS handles complex ladder logic in real time. | Use Scenario: Sub-metering gateway aggregating pulse outputs and Modbus RTU data from utility meters in commercial buildings. IC Role / Device Role / Timing Role: Protocol bridge with dual UARTs (one for pulse counting, one for Modbus RTU), RTC timestamping, and secure flash storage for usage logs. Use Value: Dual UART + 10 I²C channels allow concurrent meter polling and sensor integration; 384 KB flash stores firmware, encryption keys, and 30-day usage history. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GLGFB#30 | Same 48-pin LFQFP package, identical 384 KB flash/8 KB data flash/24 KB RAM, but rated for −40°C to +85°C (industrial D-grade) | Not qualified for +105°C ambient environments - unsuitable for enclosed enclosures or high-temperature industrial zones | Select when operating ambient stays ≤ +85°C and cost optimization is prioritized over extended temperature margin |
| R5F104LKAFB#30 | 64-pin LFQFP, 512 KB flash/8 KB data flash/48 KB RAM, same −40°C to +105°C rating, adds 4 more I/O pins and 2 extra UART channels | Requires PCB redesign due to larger footprint and different pinout - not drop-in compatible | Choose when future scalability (more flash, RAM, peripherals) justifies layout change and higher BOM cost |
Compared with R5F104GKGFB#30, R5F104GLGFB#30 trades temperature range for cost parity in milder environments, while R5F104LKAFB#30 expands memory and I/O at the expense of pin compatibility - making the R5F104GKGFB#30 optimal for thermally demanding, space-constrained industrial designs requiring proven 384 KB capacity.
Availability
R5F104GKGFB#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, programmable logic relays, and energy metering interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F104GKGFB#30 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 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally demanding industrial control applications - emphasizing ultra-low active/standby current, integrated analog, and robust debug capabilities.
FAQ
What is the maximum operating temperature specification for the R5F104GKGFB#30?
The R5F104GKGFB#30 is rated for industrial operation from −40°C to +105°C. This extended temperature range is confirmed by the 'G' suffix in the part number and applies specifically to this variant - enabling use in sealed enclosures, motor drives, and outdoor industrial equipment where ambient heat exceeds +85°C.
Does the R5F104GKGFB#30 support background data flash rewriting while executing application code?
Yes, the R5F104GKGFB#30 supports Background Operation (BGO) for data flash. This allows the CPU to execute instructions from program memory while simultaneously rewriting data flash - critical for over-the-air firmware updates and nonvolatile parameter logging without system interruption.
How many analog input channels does the R5F104GKGFB#30 provide, and what is the A/D resolution?
The R5F104GKGFB#30 integrates a 10-bit successive-approximation A/D converter with up to 20 analog input channels. It includes an internal 1.45 V reference voltage and an on-chip temperature sensor - supporting precision sensor interfacing and thermal monitoring without external components.
What serial communication interfaces are available on the R5F104GKGFB#30, and how are they allocated?
The R5F104GKGFB#30 supports up to 8 CSI (SPI-compatible), 4 UART/LIN, and 10 I²C channels - all concurrently usable. Pin assignment is flexible via Peripheral I/O Redirection Registers (PIOR0/PIOR1), allowing dynamic routing of functions like SCL0, SDA0, or TXD1 to multiple physical pins to simplify board layout and reuse firmware across variants.
Is the R5F104GKGFB#30 pin-compatible with other RL78/G14 48-pin variants such as R5F104GKAFB#30?
Yes, the R5F104GKGFB#30 shares identical pinout, package dimensions (48-pin LFQFP, 7 × 7 mm, 0.5 mm pitch), and electrical characteristics with all other R5F104GKx FB variants - including R5F104GKAFB#30 and R5F104GKDFB#30. Only the temperature grade ('G' = −40°C to +105°C) and flash configuration differ between these variants.
R5F104GKGFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 10x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104GKGFB#30 FAQ
1.How can I place an order for R5F104GKGFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GKGFB#30 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 R5F104GKGFB#30 reliable?
The price and inventory of R5F104GKGFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GKGFB#30 is usually 5 days.
3.What payment methods are accepted for R5F104GKGFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104GKGFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104GKGFB#30?
R5F104GKGFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GKGFB#30 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 R5F104GKGFB#30?
For technical support, including R5F104GKGFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GKGFB#30 requirements.
6.How does Aetrix verify that R5F104GKGFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F104GKGFB#30 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 R5F104GKGFB#30 meets industry standards.
7.What is the process for return or replacement of R5F104GKGFB#30?
All R5F104GKGFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GKGFB#30, 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 R5F104GKGFB#30 part is unused and in its original packaging.
Return procedure for R5F104GKGFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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