Renesas R5F104GKGFB#10
- Part No.:
- R5F104GKGFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F104GKGFB#10.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 48LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,000
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Product details
Overview
R5F104GKGFB#10 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, 44 DMIPS at 32 MHz, and ultra-low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD). It targets battery-powered industrial control, sensor nodes, and smart actuators requiring integrated analog peripherals and robust timing.
For engineers reviewing the R5F104GKGFB#10 datasheet, R5F104GKGFB#10 pinout, R5F104GKGFB#10 application, or R5F104GKGFB#10 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm pitch package, −40°C to +105°C industrial temperature grade, 384 KB/8 KB/24 KB memory configuration, integrated 10-bit ADC (20 ch), dual DAC, and real-time clock with calendar function.
Technical Context
The R5F104GKGFB#10 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 multiply/divide/accumulate instructions. Its memory subsystem integrates 384 KB code flash (1 KB blocks), 8 KB data flash with background operation (BGO), and 24 KB SRAM.
Peripherals include 12-channel 16-bit Timer Array Unit (TAU), 1-channel 12-bit interval timer, 1-channel real-time clock (99-year calendar, alarm, correction), 1-channel watchdog timer, 20-channel 10-bit ADC with internal reference and temperature sensor, two 8-bit DACs, up to 10-channel I²C, 4-channel UART/LIN, and 8-channel CSI (SPI-compatible).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 44 DMIPS @ 32 MHz |
| Flash Memory | 384 KB code flash with 1 KB erase blocks, security lock, self-programming |
| Data Flash | 8 KB with background operation (BGO), 1M rewrite cycles, VDD = 1.8–5.5 V |
| RAM | 24 KB on-chip SRAM for program/data storage and flash library use |
| Operating Voltage | 1.6 V to 5.5 V single supply, enabling direct interface with 1.8/2.5/3.3 V peripherals |
| Temperature Range | −40°C to +105°C (industrial G-grade), qualified for extended thermal environments |
| Power Consumption | 66 μA/MHz active mode; 0.60 μA in STOP mode with RTC + LVD active |
Pinout & Package
Package: 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch), lead-free, RoHS-compliant, industrial-grade (G) marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00/P01 | TxD1/RxD1, TI00/TO00, TRGCLKA/B | Full-duplex UART channel 1 with trigger clock input for synchronized peripheral control |
| P10–P17 | CSI11/I²C11/UART2/SO/SI/SCL/SDA/TRDIOx | Multiplexed serial interfaces supporting daisy-chain SPI (CSI), I²C master/slave, and LIN-capable UART |
| P20–P27 | ANI0–ANI7, AVREFP/M, ANO0/1, VCOUT0/1 | 8-channel analog input with dedicated reference pins and two voltage-controlled output channels |
| P30/P31 | INTP3/RTC1HZ/SCK00, INTP4/TI03/TO03/PCLBUZ0 | Dedicated RTC interrupt output (1 Hz) and programmable buzzer/timer output with external trigger capability |
| P50/P51 | SI00/SO00/RxD0/TxD0, TOOLRxD/TOOLTxD, TRGIOA/B | On-chip debug UART with tool interface signals and general-purpose I/O with trigger input/output |
| P60–P63 | SCLA0/SDAA0/SSI00 | I²C bus A (SCL/SDA) plus synchronous serial interface (SSI) for external memory or codec interfacing |
| P120–P124 | VCOUT0, X1/X2, XT1/XT2/EXCLKS | Crystal oscillator support (32.768 kHz RTC + 1–20 MHz main), external clock input, and voltage-controlled oscillator output |
| RESET, REGC, VDD, VSS | Reset input, regulator capacitor, power supply rails | Hardware reset with glitch filter; REGC requires 0.47–1 µF capacitor to VSS for stable internal regulator operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Enables multi-year battery life in sensor nodes via sub-µA retention with RTC + LVD active |
| Background data flash rewriting (BGO) | Allows uninterrupted program execution during firmware updates or parameter logging |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 peripheral events eliminates CPU polling overhead for time-critical sequences |
| Peripheral I/O redirection (PIOR) | Runtime remapping of up to 8 peripheral functions to alternate pins without PCB redesign |
| Integrated temperature sensor & 1.45 V reference | Enables self-calibrating environmental monitoring and precision analog measurement without external components |
| Real-time clock with calendar & correction | Supports accurate timestamping, alarm scheduling, and drift compensation over full industrial temperature range |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed/position control of BLDC motors in HVAC actuators and factory automation drives. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing PWM generation via TAU, sampling current/voltage via 10-bit ADC, and communicating via UART/LIN. Use Value: Integrated 24 KB RAM accommodates motor control libraries; 384 KB flash enables field-upgradable firmware; 0.60 μA STOP mode extends maintenance intervals. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in building management systems. IC Role / Device Role / Timing Role: Sensor hub aggregating data from I²C sensors, performing local calibration using on-chip temperature sensor and 1.45 V reference, and transmitting via UART to gateway. Use Value: 66 μA/MHz active current and BGO enable continuous logging; RTC calendar supports scheduled wake-ups; 20-channel ADC interfaces multiple analog sensors. |
| Programmable Logic Controller (PLC) I/O Module | Energy Metering Front-End |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU communication. IC Role / Device Role / Timing Role: Protocol handler and GPIO manager using UART for Modbus, ELC for deterministic input capture, and TAU for pulse-width measurement on high-speed inputs. Use Value: 48-pin LFQFP provides sufficient I/O count (≥36 GPIO); 44 DMIPS ensures real-time protocol stack execution; industrial temp grade ensures reliability in control cabinets. | Use Scenario: Residential smart meter front-end acquiring voltage/current waveforms and computing RMS, harmonics, and energy totals. IC Role / Device Role / Timing Role: High-precision analog acquisition controller using 10-bit ADC with internal reference, real-time clock for billing timestamps, and UART for HAN communication. Use Value: Dual DAC outputs support analog meter driver circuits; 8 KB data flash stores calibration coefficients and usage history; RTC calendar enables accurate monthly billing cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GLGFB#10 | Same 48-pin LFQFP package, identical 384 KB/8 KB/24 KB memory, but rated for −40°C to +85°C (D-grade) | Targeted at consumer or lower-temperature industrial environments where extended 105°C operation is unnecessary | Select when cost sensitivity outweighs need for extended temperature qualification |
| R5F104LKAFB#10 | 64-pin LFQFP, 512 KB flash, 8 KB data flash, 48 KB RAM, same core/peripherals, −40°C to +85°C (A/D-grade) | Higher I/O count (≥52 GPIO), larger memory for complex protocols or local data buffering in gateway-class devices | Choose when additional GPIO, RAM, or flash is required and PCB layout allows 64-pin footprint |
Compared with R5F104GKGFB#10, R5F104GLGFB#10 offers identical functionality at lower thermal qualification, while R5F104LKAFB#10 trades industrial temperature margin for significantly expanded memory and I/O-making it suitable for more feature-rich edge nodes where board space permits.
Availability
R5F104GKGFB#10 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and energy metering front-ends requiring stable component supply across long production lifecycles.
Supply support for R5F104GKGFB#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 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally demanding industrial applications requiring integrated analog, timing, and communication peripherals.
FAQ
What is the operating temperature range of the R5F104GKGFB#10?
The R5F104GKGFB#10 is rated for −40°C to +105°C (industrial G-grade), making it suitable for deployment in harsh thermal environments such as factory floor controllers, outdoor sensor enclosures, and motor drive heat sinks where ambient temperatures exceed 85°C.
How much flash and RAM does the R5F104GKGFB#10 provide?
The R5F104GKGFB#10 integrates 384 KB of code flash memory, 8 KB of data flash memory with background operation (BGO), and 24 KB of on-chip SRAM. This configuration supports substantial firmware images, secure parameter storage, and real-time data buffers for industrial control algorithms.
Does the R5F104GKGFB#10 support real-time clock functionality with calendar features?
Yes, the R5F104GKGFB#10 includes a dedicated real-time clock (RTC) peripheral with full calendar support (year/month/day/hour/minute/second), alarm interrupt, and automatic clock correction-enabling accurate time-stamping, scheduled wake-ups, and billing-cycle tracking in energy metering and data-logging applications.
What serial communication interfaces are available on the R5F104GKGFB#10?
The R5F104GKGFB#10 provides up to 4 UART/LIN channels, 10 I²C/simplified I²C channels, and 8 CSI (SPI-compatible) channels. These interfaces support mixed-protocol systems-for example, UART for host communication, I²C for sensor hubs, and CSI for display or memory expansion.
Is the R5F104GKGFB#10 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 48-pin LFQFP package-including R5F104GKGFB#10, R5F104GLGFB#10, and R5F104GKAFB#10-share identical pinouts and electrical characteristics. This enables drop-in replacement across memory and temperature grades without PCB modification.
R5F104GKGFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 38
- 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:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104GKGFB#10 FAQ
1.How can I place an order for R5F104GKGFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GKGFB#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 R5F104GKGFB#10 reliable?
The price and inventory of R5F104GKGFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GKGFB#10 is usually 5 days.
3.What payment methods are accepted for R5F104GKGFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104GKGFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104GKGFB#10?
R5F104GKGFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GKGFB#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 R5F104GKGFB#10?
For technical support, including R5F104GKGFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GKGFB#10 requirements.
6.How does Aetrix verify that R5F104GKGFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F104GKGFB#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 R5F104GKGFB#10 meets industry standards.
7.What is the process for return or replacement of R5F104GKGFB#10?
All R5F104GKGFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GKGFB#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 R5F104GKGFB#10 part is unused and in its original packaging.
Return procedure for R5F104GKGFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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