Renesas R5F101GDAFB#V0
- Part No.:
- R5F101GDAFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F101GDAFB#V0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F101GDAFB#V0 from Renesas is a 48-pin LFQFP-packaged 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB RAM, and no data flash memory, operating from 1.6 V to 5.5 V at up to 32 MHz (41 DMIPS), targeting ultra-low-power industrial control applications such as sensor nodes and battery-powered HMI modules.
For engineers reviewing the R5F101GDAFB#V0 datasheet, R5F101GDAFB#V0 pinout, R5F101GDAFB#V0 application, or R5F101GDAFB#V0 equivalent, key selection criteria include its 0.5 mm pitch LFQFP-48 package, -40°C to +105°C industrial temperature grade (G suffix), absence of on-chip data flash, and support for RTC + LVD operation at 0.57 μA in STOP mode.
Technical Context
The R5F101GDAFB#V0 implements the RL78 CPU core with a 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), and features an address space of 1 MB with four banks of 8-bit general-purpose registers.
It integrates a 12-bit interval timer, real-time clock with calendar and alarm, watchdog timer, 8/10-bit ADC with up to 26 channels and internal temperature sensor, and serial interfaces including CSI (SPI-compatible), UART/LIN, and I²C - all configurable without external components for embedded sensing and actuation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash / RAM | 128 KB code flash, 8 KB RAM, 0 KB data flash (R5F101x series) |
| Supply Range | 1.6 V to 5.5 V - supports direct connection to Li-ion, 3.3 V, and 5 V rails |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE |
| ADC | 8/10-bit resolution, 26-channel input, internal 1.45 V reference and temperature sensor |
| Timers | 16-bit timer × 12 channels, 12-bit interval timer × 1, RTC × 1, WDT × 1 |
| Serial Interfaces | CSI × 6, UART × 2 (LIN-capable), I²C × 3 - all with independent clock sources |
Pinout & Package
Package: 48-pin LFQFP (7 mm × 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 VDD/VSS pairs ensure stable core/peripheral rail decoupling; supports single-supply operation |
| P00–P07 | General-purpose I/O port | Configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; supports 1.8/2.5/3 V logic interfacing |
| P10–P17 | Multi-function port | Includes SCK00/SCL00, SI00/RxD0, SO00/TxD0, and TOOLRxD - enables debug and dual-protocol serial comms |
| P20–P27 | Analog input port | ANI0–ANI7 with AVREFP/AVREFM references; enables simultaneous 8-channel sampling with internal temp sensor |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
| CLKP/CLKM | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC; high-accuracy internal oscillator eliminates need for external timing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA with RTC and LVD active - enables decade-scale battery life in metering and sensor edge nodes |
| Self-programmable flash | Boot swap and flash shield window functions enable secure firmware updates without external programmer |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control and filtering |
| Background data flash rewrite | Not applicable - R5F101x series lacks data flash; code flash used for parameter storage with erase-block protection |
| On-chip debug interface | FULLY integrated on-chip debug circuit (no external JTAG adapter required); supports real-time trace via FINE |
| Different-potential I/O | IO pins tolerate 1.8 V, 2.5 V, and 3 V logic levels - simplifies interconnection with mixed-voltage peripherals |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
Use Scenario: Battery-powered environmental monitoring node with temperature, humidity, and CO₂ sensing. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, calibration, low-power scheduling, and wireless transmission prep. Use Value: 0.57 μA STOP mode with RTC extends 2xAA battery life beyond 10 years; 26-channel ADC supports multi-sensor analog front-end integration. |
Use Scenario: Residential HVAC control unit requiring precise temperature regulation, display management, and user input handling. IC Role / Device Role / Timing Role: Central MCU managing PID loop timing, LCD backlight PWM, capacitive touch scanning, and IR remote decoding. Use Value: 41 DMIPS at 32 MHz ensures sub-millisecond control loop execution; built-in buzzer output controller drives audible feedback without external driver. |
| Programmable Logic Relay | Industrial HMI Panel |
Use Scenario: DIN-rail mounted relay module with configurable I/O mapping, time-delay logic, and Modbus RTU communication. IC Role / Device Role / Timing Role: Real-time deterministic controller executing ladder logic scan, digital input debouncing, and UART-based protocol stack. Use Value: HALT mode (66 μA/MHz) enables fast wake-from-interrupt response (<1 μs); 12× 16-bit timers provide independent timing for up to 12 discrete outputs. |
Use Scenario: Local operator interface for PLC-controlled machinery with graphical LCD, tactile buttons, and status LEDs. IC Role / Device Role / Timing Role: Display and peripheral manager handling SPI-driven LCD refresh, key interrupt scanning, LED PWM dimming, and CAN bus gateway logic. Use Value: CSI interface drives 8-bit parallel LCD at 10 Mbps; on-chip BCD correction accelerates numeric display formatting for runtime values. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GDAFB#V0 | Same package and pinout; includes 8 KB data flash and background rewrite capability | Required where field-upgradable nonvolatile parameter storage is needed (e.g., calibration tables) | Select when persistent data logging or firmware parameter retention across resets is mandatory |
| R5F101GJAFB#V0 | Same R5F101x family, 52-pin LQFP, +16 KB flash (144 KB), +4 KB RAM (12 KB), identical peripherals | Suitable for designs needing more I/O (up to 42 GPIO) or larger code footprint without changing core architecture | Choose for scalability path - same toolchain, debug interface, and peripheral register map |
Compared with R5F100GDAFB#V0, the R5F101GDAFB#V0 trades data flash for lower cost and simplified flash management; compared with R5F101GJAFB#V0, it offers higher I/O density per mm² in a smaller 48-pin footprint ideal for space-constrained industrial modules.
Availability
R5F101GDAFB#V0 is available at Aetrix Electronics and suitable for industrial automation, smart metering, and battery-powered sensor systems requiring stable component supply across extended product lifecycles.
Supply support for R5F101GDAFB#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 product line delivers true low-power performance for cost-sensitive industrial and consumer applications, emphasizing energy efficiency, integrated peripherals, and seamless development with RA/RL ecosystem tools.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F101GDAFB#V0?
The R5F101GDAFB#V0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. Its minimum instruction execution time is 0.03125 μs under this condition, enabling deterministic real-time control loops and fast peripheral response in industrial applications.
Does the R5F101GDAFB#V0 include on-chip data flash memory?
No, the R5F101GDAFB#V0 does not include on-chip data flash memory. As indicated by the "101" in its part number (per Renesas RL78/G13 documentation), it belongs to the data-flash-free variant family. Code flash (128 KB) must be used for both program and configuration storage, with block-erase prohibition enhancing security.
What is the operating temperature range specified for the R5F101GDAFB#V0?
The R5F101GDAFB#V0 is rated for industrial operation from -40°C to +105°C, as confirmed by the "G" suffix in its ordering code. This makes it suitable for deployment in harsh environments such as factory-floor controllers, outdoor metering equipment, and under-hood automotive auxiliary modules.
Which package type and pin count does the R5F101GDAFB#V0 use?
The R5F101GDAFB#V0 uses a 48-pin LFQFP package with 7 mm × 7 mm body size and 0.5 mm lead pitch (Renesas package code FB). This compact, surface-mount package supports automated assembly and provides robust thermal and mechanical performance for industrial PCB layouts.
How does the R5F101GDAFB#V0 support low-power design in battery-operated systems?
The R5F101GDAFB#V0 supports ultra-low-power design through multiple hardware-optimized modes: STOP mode draws just 0.57 μA while maintaining RTC and LVD functionality, HALT mode consumes 66 μA/MHz, and SNOOZE mode allows selective peripheral operation during CPU sleep - all programmable via dedicated control registers in the R5F101GDAFB#V0.
R5F101GDAFB#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:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 3K 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:
R5F101GDAFB#V0 FAQ
1.How can I place an order for R5F101GDAFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GDAFB#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 R5F101GDAFB#V0 reliable?
The price and inventory of R5F101GDAFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GDAFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F101GDAFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GDAFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GDAFB#V0?
R5F101GDAFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GDAFB#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 R5F101GDAFB#V0?
For technical support, including R5F101GDAFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GDAFB#V0 requirements.
6.How does Aetrix verify that R5F101GDAFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101GDAFB#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 R5F101GDAFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F101GDAFB#V0?
All R5F101GDAFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GDAFB#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 R5F101GDAFB#V0 part is unused and in its original packaging.
Return procedure for R5F101GDAFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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