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Renesas R5F101GKDFB#X0
- Part No.:
- R5F101GKDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F101GKDFB#X0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,794
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Product details
Overview
R5F101GKDFB#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, 1.6–5.5 V operation, and -40°C to +105°C ambient rating - deployed in smart metering, industrial HMI, and battery-powered sensor nodes.
For engineers reviewing the R5F101GKDFB#X0 datasheet, R5F101GKDFB#X0 pinout, R5F101GKDFB#X0 application, or R5F101GKDFB#X0 equivalent, key selection criteria include ultra-low-power STOP/HALT modes (0.57 μA RTC+LVD), integrated 10-bit ADC (26 channels), real-time clock with calendar/alarm, and hardware UART/I²C/CSI interfaces for embedded control and telemetry.
Technical Context
The R5F101GKDFB#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (@32 MHz) to 30.5 μs (@32.768 kHz). It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz), DMA controller (4 channels), and multiplier/divider unit for 16×16→32-bit and 32÷32-bit operations.
Its peripheral set includes up to 16× 16-bit timers, 1× 12-bit interval timer, 1× calendar-capable RTC, 1× watchdog timer, and serial interfaces: 2–4 UART/LIN, 3–10 I²C/Simplified I²C, and 2–8 CSI channels - all configurable via dedicated SFRs and interrupt vectors without software overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash / Data Flash / RAM | 256 KB code flash, 8 KB data flash (1M rewrite cycles), 20 KB SRAM |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8/2.5/3.3/5 V peripherals |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE - reduces system-level energy budget |
| ADC | 10-bit resolution, 26-channel input, internal 1.45 V reference and temperature sensor |
| Timers & RTC | 16× 16-bit timers, 1× 12-bit interval timer, 1× calendar RTC (99-year range, alarm, correction) |
| Serial Interfaces | 4× UART/LIN, 10× I²C/Simplified I²C, 8× CSI - supports multi-protocol sensor/actuator communication |
Pinout & Package
Package: 48-pin LFQFP (7 × 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 support noise isolation; VDD accepts 1.6–5.5 V directly |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57 | General-purpose I/O ports | Up to 48 programmable pins with N-ch open-drain, TTL input, pull-up, and level-shift capability |
| P20/P21 | ADC analog inputs / AVREFP/AVREFM | Dedicated analog reference pins enable precise 10-bit conversion across full voltage range |
| P10/P11/P12/P13 | SCK00/SI00/SO00/SS00 (CSI0) | Hardware SPI-compatible interface for fast sensor or display communication |
| P30/P31 | RxD0/TxD0 (UART0) | Full-duplex asynchronous serial link supporting LIN bus physical layer |
| P40/P41 | SCL00/SDA00 (I²C0) | Standard-mode (100 kHz) and fast-mode (400 kHz) I²C master/slave interface |
| RESET | Active-low reset input | Accepts external reset or internal POR/LVD assertion; debounced for robust startup |
| CLKP/CLKM | External crystal connection | Supports 32.768 kHz crystal for RTC accuracy or higher-frequency crystals for main clock |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC + LVD active - extends battery life in always-on sensing |
| Self-programmable flash | Boot-swap and flash-shield window functions enable secure firmware updates in field |
| Background data flash rewrite | BGO allows concurrent program execution during 4–8 KB data flash writes - no CPU stall |
| Hardware CRC generator | Accelerates checksum calculation for firmware integrity verification and communication protocols |
| On-chip key interrupt | Detects up to 8 independent edge-triggered GPIO events without polling - reduces wake latency |
Applications
| Smart Energy Metering | Industrial HMI Panel |
|---|---|
Use Scenario: Three-phase electricity meter with tariff switching, tamper detection, and wireless backhaul. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, RTC-based billing intervals, and UART/LIN communication to PLC or RF module. Use Value: 256 KB flash stores dual tariff logic and encryption libraries; STOP mode preserves RTC/calendar during mains dropout. | Use Scenario: Local operator interface for PLC-controlled packaging line with touch buttons and LED status indicators. IC Role / Device Role / Timing Role: Real-time I/O coordinator handling button scan, LED PWM dimming, and RS-485 Modbus RTU messaging. Use Value: 26-channel ADC reads analog sensors; 16-bit timers generate precise 1–100 Hz LED PWM; UART0/1 support dual Modbus ports. |
| Battery-Powered Sensor Node | Home Appliance Control |
Use Scenario: Wireless temperature/humidity node with BLE gateway interface and 10-year coin-cell operation. IC Role / Device Role / Timing Role: Low-duty-cycle sensor aggregator using RTC alarms to wake, sample ADC, process data, and transmit via UART-to-BLE bridge. Use Value: 0.57 μA STOP current enables >3 years runtime on CR2032; integrated temperature sensor eliminates external component. | Use Scenario: Washing machine main board controlling motor driver, water valves, display, and safety interlocks. IC Role / Device Role / Timing Role: System supervisor managing fault monitoring (LVD, watchdog), motor commutation timing, and user interface state machine. Use Value: On-chip LVD with 14 selectable thresholds detects brown-out before MCU lockup; HALT mode synchronizes with motor phase transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101GKAFB#X0 | Same package and memory (256 KB/8 KB/20 KB), but consumer temp grade (−40°C to +85°C) | Suitable for non-industrial environments where extended temperature is not required | Select when cost sensitivity outweighs industrial thermal margin requirements |
| R5F101GLDFB#X0 | Identical specs and temp grade, but 64-pin LQFP (12 × 12 mm, 0.65-mm pitch) - adds 16 more I/O and 2 extra UART/I²C channels | Required when system needs >48 GPIO or additional serial interfaces beyond R5F101GKDFB#X0 capacity | Choose for scalability path without firmware redesign - same peripheral register map and toolchain |
Compared with R5F101GKDFB#X0, R5F101GKAFB#X0 trades industrial temperature tolerance for lower acquisition cost, while R5F101GLDFB#X0 retains full thermal specification but expands I/O count and interface density - enabling migration from compact control to feature-rich HMI or multi-sensor systems.
Availability
R5F101GKDFB#X0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and battery-powered sensor nodes requiring stable component supply across long production lifecycles.
Supply support for R5F101GKDFB#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 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, energy-constrained industrial and consumer applications demanding high integration and long-term reliability.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F101GKDFB#X0?
The R5F101GKDFB#X0 operates up to 32 MHz using its high-accuracy on-chip oscillator (±1.0% over −40°C to +85°C). At full speed, it consumes 66 μA per MHz under typical conditions. In STOP mode with only RTC and LVD active, current drops to 0.57 μA - verified per R01DS0131EJ0380 Rev.3.80 datasheet Section 1.1.
Does the R5F101GKDFB#X0 include an integrated temperature sensor and how is it calibrated?
Yes, the R5F101GKDFB#X0 includes an on-chip temperature sensor usable only in HS (high-speed main) mode. It outputs a voltage proportional to die temperature, referenced to the internal 1.45 V bandgap. Calibration requires one-point factory characterization; users apply linear compensation using slope/offset values provided in the device-specific calibration data sheet (R01DS0131EJ0380 Appendix A).
Can the R5F101GKDFB#X0 perform simultaneous code execution and data flash rewriting?
Yes, the R5F101GKDFB#X0 supports Background Operation (BGO) for data flash. While rewriting 4–8 KB of data flash memory, the CPU can execute instructions from code flash without interruption - critical for logging sensor data during active control loops. This is enabled via the FLMCR register and documented in Section 24.3.3 of R01DS0131EJ0380.
What UART/LIN features does the R5F101GKDFB#X0 support for automotive diagnostics?
The R5F101GKDFB#X0 includes two UART channels (UART0 and UART1) with full LIN 2.2 compliance: automatic sync-break detection, configurable baud rate generation, and LIN header/response timing control. UART0 supports TOOLRxD for on-chip debug, and both channels integrate error detection (framing, parity, overrun) - validated per Renesas Application Note R01AN3727.
Is the R5F101GKDFB#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, all RL78/G13 devices in the 48-pin LFQFP (FB) package - including R5F100xKDFB and R5F101xKDFB variants - share identical pinouts and electrical characteristics. Differences are limited to flash/data flash/RAM sizes and temperature grade (D vs G), confirmed in Table 1-1 and Figure 1-1 of R01DS0131EJ0380.
R5F101GKDFB#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:
- -
- 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:
R5F101GKDFB#X0 FAQ
1.How can I place an order for R5F101GKDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GKDFB#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 R5F101GKDFB#X0 reliable?
The price and inventory of R5F101GKDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GKDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101GKDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GKDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GKDFB#X0?
R5F101GKDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GKDFB#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 R5F101GKDFB#X0?
For technical support, including R5F101GKDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GKDFB#X0 requirements.
6.How does Aetrix verify that R5F101GKDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101GKDFB#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 R5F101GKDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101GKDFB#X0?
All R5F101GKDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GKDFB#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 R5F101GKDFB#X0 part is unused and in its original packaging.
Return procedure for R5F101GKDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F101GKDFB#X0 Tags
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