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Renesas R5F100GKDFB#X0
- Part No.:
- R5F100GKDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F100GKDFB#X0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,007
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Product details
Overview
R5F100GKDFB#X0 from Renesas is a 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit microcontroller with 256 KB flash, 8 KB data flash, 20 KB RAM, and operation up to 32 MHz delivering 41 DMIPS - deployed in battery-powered sensor nodes, motor control interfaces, and smart home appliance controllers.
For engineers reviewing the R5F100GKDFB#X0 datasheet, R5F100GKDFB#X0 pinout, R5F100GKDFB#X0 application, or R5F100GKDFB#X0 equivalent, key selection criteria include ultra-low-power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), integrated 10-bit ADC (26 channels), real-time clock with calendar/alarm, and LIN-capable UART for automotive body electronics and industrial IoT edge devices.
Technical Context
The R5F100GKDFB#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 16-bit timer array (12 channels), 12-bit interval timer, watchdog timer, and DMA controller with 4 channels.
Its memory subsystem includes 256 KB on-chip code flash (1 KB block size, self-programming with boot swap), 8 KB data flash with background operation (BGO) and 1M rewrite cycles, and 20 KB SRAM - all operating across 1.6–5.5 V supply and -40°C to +105°C ambient temperature (Industrial G-grade).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for deterministic real-time control loops |
| Flash Memory | 256 KB code flash with 1 KB erase blocks, security lock, and self-programming |
| Data Flash | 8 KB with background operation (BGO), 1,000,000 write cycles, 1.8–5.5 V programming |
| RAM Size | 20 KB on-chip SRAM - sufficient for RTOS stacks, protocol buffers, and sensor fusion |
| ADC Resolution & Channels | 10-bit SAR ADC with up to 26 analog inputs and internal 1.45 V reference |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE for peripheral-triggered wake-up |
| Operating Temperature | -40°C to +105°C - qualified for industrial motor drives and automotive cabin modules |
Pinout & Package
Package: 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support mixed-voltage I/O (1.8/2.5/3.3 V interface compatibility) |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57 | General-purpose I/O ports | Up to 39 programmable pins with N-ch open-drain, TTL input, pull-up, and key interrupt capability |
| P10/P11 | SPI0 (SCK00/SI00), UART0 (RxD0/TxD0), LIN, SDA00/SCL00 | Multi-function pin supporting serial communication with hardware LIN bus framing |
| P20–P27 | ADC input channels ANI0–ANI7 | Eight dedicated analog inputs with selectable reference (AVREFP/AVREFM) |
| XT1/XT2 | External crystal oscillator terminals | Supports 32.768 kHz crystal for RTC accuracy and low-power timekeeping |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active - enables multi-year battery life in wireless sensors |
| Integrated LIN transceiver support | Hardware UART with LIN bus protocol framing and sync-break detection - eliminates external transceiver in body control modules |
| Background data flash rewriting | BGO allows full CPU execution from program memory while updating 8 KB data flash - critical for firmware-over-the-air (FOTA) and logging |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - supports time-stamped event logging without external RTC IC |
| On-chip debug and self-programming | Firmware updates via single-wire debug (SWD); boot swap function ensures safe field upgrades with rollback |
| Temperature sensor & reference | Integrated bandgap temperature sensor and 1.45 V internal reference - enables system-level thermal monitoring without BOM cost |
Applications
| Smart Thermostat Control | Industrial Motor Drive Interface |
|---|---|
|
Use Scenario: Battery- or energy-harvesting–powered HVAC thermostat with local display, temperature/humidity sensing, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, PID loop execution, display refresh, and low-power wireless wake-up scheduling. Use Value: 0.57 μA STOP mode extends coin-cell life beyond 5 years; integrated 10-bit ADC and temperature sensor reduce external component count by 3. |
Use Scenario: Compact BLDC motor driver board for pumps, fans, or conveyors requiring closed-loop speed/torque control and fault monitoring. IC Role / Device Role / Timing Role: Real-time motion controller interfacing with gate drivers, current sense amplifiers, and Hall/encoder feedback. Use Value: 41 DMIPS at 32 MHz sustains 20 kHz PWM generation and FOC math; 12-channel 16-bit timers enable precise phase timing and dead-time insertion. |
| Automotive Body Control Module | Wireless Sensor Node Hub |
|
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN communication to central ECU. IC Role / Device Role / Timing Role: LIN node controller with GPIO expansion, PWM dimming, and diagnostic monitoring (LVD, temperature, short-circuit detection). Use Value: Hardware LIN support reduces software overhead; -40°C to +105°C rating meets AEC-Q100 Grade 2 requirements for under-hood proximity. |
Use Scenario: Sub-GHz or BLE gateway aggregating data from multiple environmental sensors (temp, humidity, CO₂) before forwarding to cloud. IC Role / Device Role / Timing Role: Low-power host MCU managing sensor polling, data preprocessing, secure storage in data flash, and radio interface coordination. Use Value: 8 KB data flash with BGO enables concurrent sensor logging and radio transmission; SNOOZE mode cuts average current to <2 μA during idle intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101GKDFB#X0 | No data flash (0 KB); identical core, peripherals, package, and temperature grade | Not suitable for firmware update storage or persistent logging - requires external EEPROM/NV memory | Select when data retention needs are met externally and BOM cost reduction is prioritized |
| RL78/G14 R5F104GKDFB#X0 | Enhanced RL78/G14 core: higher max frequency (48 MHz), larger RAM (32 KB), added USB 2.0 FS controller | Required for USB device connectivity or higher computational throughput; larger footprint and power budget | Choose when USB host/device capability or >41 DMIPS is mandatory - otherwise R5F100GKDFB#X0 offers optimal cost/power balance |
Compared with R5F101GKDFB#X0, the R5F100GKDFB#X0 adds 8 KB data flash enabling standalone firmware updates and sensor logging; versus RL78/G14 R5F104GKDFB#X0, it trades USB and extra RAM for lower cost, smaller die, and reduced active/idle power - ideal for cost-sensitive, battery-constrained industrial endpoints.
Availability
R5F100GKDFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart building automation, and automotive body electronics requiring stable component supply across extended product lifecycles.
Supply support for R5F100GKDFB#X0 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 embedded applications - designed to replace legacy 8-bit MCUs while delivering 16-bit performance, robust peripheral integration, and seamless migration paths within the RL78 ecosystem.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100GKDFB#X0?
The R5F100GKDFB#X0 operates at up to 32 MHz, achieving 41 DMIPS (Dhrystone 2.1) performance. This enables deterministic execution of real-time control algorithms, such as motor FOC or PID loops, with sub-microsecond interrupt latency. Its high-speed on-chip oscillator maintains ±1.0% accuracy across 1.8–5.5 V and -40°C to +85°C, eliminating need for external crystals in many applications - though XT1/XT2 pins support 32.768 kHz crystals for RTC precision.
Does the R5F100GKDFB#X0 support LIN bus communication, and how is it implemented?
Yes, the R5F100GKDFB#X0 supports LIN 2.2/SAE J2602 via its UART0 peripheral with dedicated hardware features including automatic sync-break detection, checksum calculation, and frame timeout handling. Pin P11 serves as RxD0/TxD0 and supports LIN physical layer signaling directly - no external transceiver required for basic node functionality. This reduces BOM cost and PCB area in automotive body control and industrial sub-networks where LIN provides reliable, low-cost serial interconnect.
What low-power modes does the R5F100GKDFB#X0 offer, and what is the lowest achievable current draw?
The R5F100GKDFB#X0 offers HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - verified at VDD = 3.0 V and TA = 25°C. This enables multi-year operation on coin cells in wireless sensors or energy-harvesting systems. SNOOZE mode allows selected peripherals (e.g., ADC, UART) to operate autonomously while CPU remains halted, waking only on completion or error - ideal for periodic measurement tasks without full wake-up overhead.
How much data flash is integrated into the R5F100GKDFB#X0, and what are its key usage characteristics?
The R5F100GKDFB#X0 integrates 8 KB of on-chip data flash, rated for 1,000,000 write/erase cycles at VDD = 1.8–5.5 V. It supports background operation (BGO), allowing full CPU execution from code flash while data flash is rewritten - essential for firmware-over-the-air (FOTA) updates and real-time data logging. The flash library reserves RAM starting at address FAF00H, and security features include block erase prohibition to prevent accidental corruption of critical parameters.
What is the industrial temperature rating of the R5F100GKDFB#X0, and which applications benefit most from this specification?
The R5F100GKDFB#X0 carries the 'G' suffix, indicating qualification for -40°C to +105°C operation - meeting industrial-grade reliability requirements. This makes it suitable for under-hood automotive modules (e.g., radiator fan control), factory-floor motor drives, outdoor smart meters, and HVAC systems exposed to wide ambient swings. Its guaranteed performance across this range - including flash read/write, ADC linearity, and oscillator stability - eliminates derating concerns in thermally demanding deployments.
R5F100GKDFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- 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#X0 FAQ
1.How can I place an order for R5F100GKDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100GKDFB#X0 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#X0 reliable?
The price and inventory of R5F100GKDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100GKDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100GKDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100GKDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100GKDFB#X0?
R5F100GKDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100GKDFB#X0 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#X0?
For technical support, including R5F100GKDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100GKDFB#X0 requirements.
6.How does Aetrix verify that R5F100GKDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100GKDFB#X0 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#X0 meets industry standards.
7.What is the process for return or replacement of R5F100GKDFB#X0?
All R5F100GKDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100GKDFB#X0, 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#X0 part is unused and in its original packaging.
Return procedure for R5F100GKDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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