Renesas R5F100GKDFB#V0
- Part No.:
- R5F100GKDFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F100GKDFB#V0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100GKDFB#V0 from Renesas is a 48-pin LFQFP-0.5mm-pitch 16-bit RL78/G13 microcontroller with 256 KB flash, 8 KB data flash, 20 KB RAM, and industrial-grade -40°C to +105°C operation. It integrates a 32 MHz high-accuracy on-chip oscillator (±1.0%), 10-bit 26-channel ADC, RTC with calendar/alarm, and low-power STOP/HALT/SNOOZE modes for battery-powered sensor nodes and motor control interfaces.
For engineers reviewing the R5F100GKDFB#V0 datasheet, R5F100GKDFB#V0 pinout, R5F100GKDFB#V0 application, or R5F100GKDFB#V0 equivalent, key selection criteria include its 256 KB code flash with self-programming and boot-swap support, 20 KB RAM allocation for real-time control stacks, and dual UART/LIN + I²C + CSI interfaces for industrial HMI and actuator communication.
Technical Context
The R5F100GKDFB#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 background operation during data flash rewriting and includes a dedicated low-speed on-chip oscillator for watchdog timer independence from main clock domains.
Its peripheral set includes up to 16 channels of 16-bit timers, one 12-bit interval timer, one real-time clock with calendar and clock correction, and DMA controller with 4 channels supporting 2-clock transfers between SFR and internal RAM - enabling deterministic response in closed-loop motor control and time-critical sensor sampling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz with ±1.0% accuracy high-speed on-chip oscillator (1.8–5.5 V, –20 to +85°C) |
| Memory | 256 KB code flash (1 KB block size), 8 KB data flash (1M rewrite cycles), 20 KB RAM |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE for low-latency wake-up |
| Analog Peripherals | 10-bit 26-channel ADC with internal 1.45 V reference and temperature sensor |
| Serial Interfaces | 2–4 UART/LIN, 3–10 I²C/Simplified I²C, 2–8 CSI (SPI-compatible) channels |
| Timers & RTC | 8–16 × 16-bit timers, 1 × 12-bit interval timer, 1 × calendar RTC (99-year range, alarm, correction) |
Pinout & Package
Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, industrial temperature grade (–40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: AVDD/AVSS for analog peripherals; DVDD/DVSS for digital core (1.6–5.5 V operation) |
| P00–P07 | General-purpose I/O port | Configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; supports different-potential interface (1.8/2.5/3 V) |
| P10–P17 | Multi-function port | Includes SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD, etc. - enables concurrent SPI/I²C/UART use |
| P20–P27 | Analog input port | ANI0–ANI7 with AVREFP/AVREFM references; supports internal temperature sensor and 1.45 V reference selection |
| RESET | Reset input | Active-low reset with on-chip POR and LVD (14 selectable voltage levels, interrupt/reset configurable) |
| CLKP/CLKN | External crystal connection | Supports 32.768 kHz crystal for RTC or high-frequency crystals up to 20 MHz for main clock |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA current draw while maintaining RTC operation and LVD monitoring - extends battery life in remote sensors |
| Data flash BGO | Background operation allows full CPU execution from program memory during data flash erase/write - no runtime interruption |
| Self-programming with boot swap | Enables secure firmware updates with rollback capability via dual-bank flash management - critical for field-deployed devices |
| On-chip key interrupt | Detects key press/release on up to 8 pins without CPU polling - reduces active time in HMI applications |
| DMA with 2-clock transfer | Minimizes CPU load for high-speed peripheral data movement (e.g., ADC → RAM, UART TX buffer → shift register) |
| Real-time clock with correction | Compensates for crystal drift over temperature/time using programmable offset - maintains ±1 sec/month accuracy |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
|
Use Scenario: Closed-loop speed/position control of BLDC motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Real-time PWM generation, ADC-based current sensing, and LIN bus communication with host ECU. Use Value: 16-bit timer resolution and 2-clock DMA enable precise 20 kHz PWM with <100 ns jitter; 10-bit ADC captures phase currents at 1 MS/s. |
Use Scenario: Battery-powered environmental monitor logging temperature, humidity, and CO₂ via I²C sensors. IC Role / Device Role / Timing Role: Low-power system orchestrator managing sensor reads, RTC-timed sampling, and UART/Bluetooth LE data upload. Use Value: STOP mode at 0.57 μA extends 2×AA battery life beyond 5 years; BGO allows logging to data flash during active sensing. |
| Home Appliance HMI | Industrial PLC I/O Module |
|
Use Scenario: Touch-button and LED display interface in washing machine control panels. IC Role / Device Role / Timing Role: Key interrupt scanning, buzzer output control, and SPI-driven segment LCD driver. Use Value: On-chip key interrupt reduces CPU wake-ups by 90%; buzzer controller eliminates external driver IC. |
Use Scenario: DIN-rail mounted digital input module converting 24 V DC field signals to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Isolated input conditioning, UART-to-Modbus protocol stack, and watchdog supervision. Use Value: 4-channel DMA handles simultaneous UART RX/TX and timer capture; LVD interrupt detects brown-out before logic corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101GKDFB#V0 | No data flash (0 KB); same core, peripherals, and package; reduced memory footprint | Suitable where firmware updates are handled externally or infrequently; lower cost for fixed-function designs | Select when data logging or field firmware updates are unnecessary and BOM cost reduction is prioritized |
| R5F100GKAFP#V0 | LQFP-0.65 mm pitch (48-pin); identical memory/peripherals; larger pad pitch eases hand-soldering and rework | Better suited for prototyping, low-volume production, or environments with thermal cycling reliability concerns | Choose for design flexibility during development or where PCB assembly constraints favor 0.65 mm pitch |
Compared with R5F100GKDFB#V0, R5F101GKDFB#V0 removes data flash to reduce cost and die size but retains full code flash and peripheral compatibility, while R5F100GKAFP#V0 offers identical functionality in a more manufacturable LQFP package - enabling trade-offs between field update capability, unit cost, and assembly yield.
Availability
R5F100GKDFB#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance HMIs, and PLC I/O modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R5F100GKDFB#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/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, integration, and energy efficiency for battery-operated and thermally constrained systems.
FAQ
What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F100GKDFB#V0?
The R5F100GKDFB#V0 features a high-speed on-chip oscillator configurable up to 32 MHz with ±1.0% accuracy across VDD = 1.8–5.5 V and TA = –20°C to +85°C. This eliminates the need for an external crystal in many applications while maintaining timing integrity for UART, LIN, and PWM subsystems - directly reducing BOM count and board space.
Does R5F100GKDFB#V0 support in-system programming and secure firmware updates?
Yes, R5F100GKDFB#V0 supports full in-system programming via on-chip debug interface and includes boot-swap functionality with flash shield window protection. This enables authenticated, atomic firmware updates with rollback capability - essential for maintaining reliability in unattended industrial deployments where R5F100GKDFB#V0 serves as the primary controller.
How does the STOP mode current consumption compare to similar MCUs, and what peripherals remain active?
R5F100GKDFB#V0 achieves 0.57 μA in STOP mode with only RTC and LVD operational - among the lowest in its class. The RTC maintains calendar/alarm functions, and the LVD monitors supply voltage at any of 14 selectable thresholds, triggering interrupt or reset. This enables reliable wake-up scheduling and brown-out protection without external components - a key advantage for R5F100GKDFB#V0 in battery-powered edge nodes.
Can R5F100GKDFB#V0 interface directly with 1.8 V or 2.5 V logic devices?
Yes, R5F100GKDFB#V0 supports different-potential interface on selected I/O ports (e.g., P00–P07, P10–P17), allowing safe connection to 1.8 V, 2.5 V, or 3 V external devices without level shifters. Input buffers accept TTL-level signals, and output drive strength is configurable - simplifying mixed-voltage system design where R5F100GKDFB#V0 acts as central hub.
What is the data flash endurance and rewrite voltage range for R5F100GKDFB#V0?
R5F100GKDFB#V0 provides 8 KB of data flash rated for 1,000,000 write/erase cycles (typical) with operation supported across VDD = 1.8–5.5 V. Background operation (BGO) permits concurrent CPU execution during rewrites, ensuring deterministic real-time behavior - critical for R5F100GKDFB#V0 in applications requiring persistent parameter storage or event logging.
R5F100GKDFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G13
- 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:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100GKDFB#V0 FAQ
1.How can I place an order for R5F100GKDFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100GKDFB#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 R5F100GKDFB#V0 reliable?
The price and inventory of R5F100GKDFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100GKDFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F100GKDFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100GKDFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100GKDFB#V0?
R5F100GKDFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100GKDFB#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 R5F100GKDFB#V0?
For technical support, including R5F100GKDFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100GKDFB#V0 requirements.
6.How does Aetrix verify that R5F100GKDFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F100GKDFB#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 R5F100GKDFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F100GKDFB#V0?
All R5F100GKDFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100GKDFB#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 R5F100GKDFB#V0 part is unused and in its original packaging.
Return procedure for R5F100GKDFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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