Renesas R5F101GDAFB#X0
- Part No.:
- R5F101GDAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F101GDAFB#X0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F101GDAFB#X0 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 across -40°C to +105°C industrial temperature range. It delivers 41 DMIPS at 32 MHz, integrates RTC, 10-bit ADC (26 channels), UART/I²C/CSI interfaces, and ultra-low-power modes including STOP (0.57 μA) and HALT.
For engineers reviewing the R5F101GDAFB#X0 datasheet, R5F101GDAFB#X0 pinout, R5F101GDAFB#X0 application, or R5F101GDAFB#X0 equivalent, key selection criteria include its industrial-grade 105°C rating, absence of on-chip data flash, LFQFP-48 7×7 mm 0.5-mm pitch package, and support for real-time control in battery-powered and thermally demanding embedded systems.
Technical Context
The R5F101GDAFB#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory map spans 1 MB address space with banked 8-bit general-purpose registers.
Power management includes on-chip POR and LVD with 14 selectable voltage detection levels, DMA controller (4 channels), and multiple low-power modes-HALT, STOP, and SNOOZE-enabling precise trade-offs between wake-up latency and current consumption in event-driven applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Clock Speed | 32 MHz (41 DMIPS), with high-accuracy ±1.0% on-chip oscillator |
| Memory | 128 KB code flash, 8 KB RAM, 0 KB data flash - no background rewriting capability |
| Operating Voltage | 1.6 V to 5.5 V - supports direct connection to Li-ion, 3.3 V, and 5 V rails |
| Temperature Range | -40°C to +105°C (industrial G-grade) - qualified for under-hood, motor control, and factory automation |
| Low-Power Modes | STOP mode draws 0.57 μA (RTC + LVD active); HALT mode draws 66 μA/MHz |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
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 |
|---|---|---|
| P10/SCK00/SCL00 | Serial clock input/output | Shared SPI clock (CSI) and I²C clock - enables dual-interface peripheral sharing with software configuration |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data input / UART receive / I²C data | Multi-function pin supporting CSI master/slave, UART communication, debug interface, and I²C data line |
| P20/ANI0/AVREFP | Analog input / positive reference | Primary ADC channel 0 input and selectable AVREFP source - allows ratiometric sensing or external reference injection |
| P21/ANI1/AVREFM | Analog input / negative reference | ADC channel 1 input and AVREFM sink - supports differential ADC measurements when paired with P20 |
| P147/ANI18 | Analog input | Dedicated ADC channel 18 - accessible even in low-pin-count variants; enables extended analog monitoring without multiplexing overhead |
| VDD, VSS | Power supply / ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports independent noise filtering per domain |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC and LVD active - enables decade-scale battery life in metering and sensor nodes |
| On-chip debug interface | Fully integrated single-wire debug (SWD) with flash programming - eliminates need for external debug probes during development |
| Real-time clock (RTC) | Calendar function (99-year range), alarm, and clock correction - provides autonomous timekeeping without external crystals or firmware overhead |
| Multi-protocol serial interface | Configurable CSI (SPI-like), UART (LIN-capable), and I²C on shared pins - reduces PCB routing complexity and pin count pressure |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC - accelerates motor control algorithms and digital filtering without CPU load |
| Temperature sensor | Integrated die temperature sensor with calibration data - enables thermal monitoring and compensation without external components |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
|
Use Scenario: Closed-loop BLDC motor commutation in HVAC blowers and pump drives requiring thermal resilience and long service life. IC Role / Device Role / Timing Role: Real-time PWM generation, ADC-based current sensing, and thermal protection via integrated temperature sensor and LVD. Use Value: 105°C operation ensures reliability in enclosed motor housings; STOP-mode current enables fast wake-on-fault response with minimal energy penalty. |
Use Scenario: Polyphase electricity meter with tamper detection, power quality analysis, and secure data logging. IC Role / Device Role / Timing Role: High-precision metrology engine interfacing to sigma-delta ADCs, RTC-backed event timestamping, and secure flash storage for billing records. Use Value: 128 KB flash accommodates dual-bank firmware for field updates; 26-channel ADC supports simultaneous voltage/current/neutral sampling. |
| Factory Automation I/O Module | Medical Portable Diagnostic Device |
|
Use Scenario: DIN-rail-mounted remote I/O node collecting discrete inputs, analog sensor data, and driving relay outputs in PLC ecosystems. IC Role / Device Role / Timing Role: Deterministic GPIO control, UART-to-Modbus RTU bridging, and watchdog-managed fault recovery. Use Value: 48-pin LFQFP provides ample I/O (up to 38 usable pins) while maintaining industrial thermal performance; LIN-capable UART simplifies integration with legacy fieldbus networks. |
Use Scenario: Battery-powered handheld blood glucose or ECG analyzer requiring FDA-grade reliability and low standby drain. IC Role / Device Role / Timing Role: Sensor signal acquisition, LCD/LED display control, USB/UART host interface, and secure boot validation. Use Value: 0.57 μA STOP mode extends single-CR2032 battery life beyond 5 years; integrated LVD prevents data corruption during brownout conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101GAAFB#X0 | Same package and core, but 16 KB flash and 2 KB RAM - no data flash | Targeted at cost-sensitive, function-limited control tasks (e.g., simple timers, LED drivers) | Select when firmware footprint is <16 KB and system memory requirements are minimal |
| R5F100GDAFB#X0 | Identical pinout and package, but includes 8 KB data flash and supports background rewriting (BGO) | Suitable for applications requiring frequent nonvolatile parameter storage (e.g., calibration tables, usage logs) | Choose when field-updatable configuration or wear-leveling data logging is required - adds 0.3 mA active current overhead |
Compared with R5F101GDAFB#X0, R5F101GAAFB#X0 reduces memory headroom for simpler firmware, while R5F100GDAFB#X0 trades higher active current for robust data retention - both retain identical industrial temperature rating and peripheral set.
Availability
R5F101GDAFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, and factory automation I/O modules requiring stable component supply, long-term lifecycle assurance, and guaranteed 105°C operation.
Supply support for R5F101GDAFB#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-effective, ultra-low-power general-purpose embedded control - optimized for applications where thermal resilience, code density, and rapid time-to-market outweigh raw computational throughput.
FAQ
What is the maximum operating temperature specification for the R5F101GDAFB#X0?
The R5F101GDAFB#X0 is rated for industrial operation from -40°C to +105°C, as indicated by the 'G' suffix in its part number. This makes it suitable for under-hood automotive subsystems, motor drives, and factory-floor equipment where ambient temperatures exceed standard commercial-grade limits. The device maintains full functionality and timing specifications across this entire range.
Does the R5F101GDAFB#X0 include on-chip data flash memory?
No, the R5F101GDAFB#X0 does not include on-chip data flash memory. The '101' prefix in the part number explicitly denotes zero data flash capacity, distinguishing it from '100' series variants like R5F100GDAFB#X0 which integrate 8 KB of data flash with background rewrite capability. All nonvolatile storage must be implemented externally or via code flash partitioning.
Which package type and footprint does the R5F101GDAFB#X0 use?
The R5F101GDAFB#X0 uses a 48-pin LFQFP package measuring 7 mm × 7 mm with 0.5-mm lead pitch, identified by the 'FB' suffix and '#X0' embossed tape packaging code. It is compatible with standard LFQFP-48 reflow profiles and matches the PLQP0048KF-A land pattern per Renesas' recommended PCB layout guidelines.
Can the R5F101GDAFB#X0 operate from a single 1.8 V supply?
Yes, the R5F101GDAFB#X0 supports operation from 1.6 V to 5.5 V, making it fully functional at 1.8 V. At this voltage, maximum clock speed is reduced to approximately 16 MHz (per datasheet VDD–frequency derating curves), but all peripherals-including ADC, RTC, and serial interfaces-remain operational with specified accuracy and timing margins.
What debug interface does the R5F101GDAFB#X0 support?
The R5F101GDAFB#X0 supports Renesas' single-wire debug (SWD) interface via the dedicated TOOLx pins, enabling full-featured on-chip debugging, flash programming, and real-time trace without requiring JTAG headers or additional pins. This interface is supported by E2 studio, CS+ IDE, and third-party tools compliant with Renesas' debug protocol stack.
R5F101GDAFB#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:
- 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#X0 FAQ
1.How can I place an order for R5F101GDAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GDAFB#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 R5F101GDAFB#X0 reliable?
The price and inventory of R5F101GDAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GDAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101GDAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GDAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GDAFB#X0?
R5F101GDAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GDAFB#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 R5F101GDAFB#X0?
For technical support, including R5F101GDAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GDAFB#X0 requirements.
6.How does Aetrix verify that R5F101GDAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101GDAFB#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 R5F101GDAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101GDAFB#X0?
All R5F101GDAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GDAFB#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 R5F101GDAFB#X0 part is unused and in its original packaging.
Return procedure for R5F101GDAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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