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Renesas R5F101GFDFB#X0
- Part No.:
- R5F101GFDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F101GFDFB#X0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,996
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Product details
Overview
R5F101GFDFB#X0 from Renesas is a 48-pin LFQFP-0.5mm-pitch 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, and 12 KB RAM, 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, features ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD), and integrates 16-bit timers, 10-bit ADC (26 channels), UART/SPI/I²C interfaces, and real-time clock for embedded control in space-constrained industrial sensors.
For engineers reviewing the R5F101GFDFB#X0 datasheet, R5F101GFDFB#X0 pinout, R5F101GFDFB#X0 application, or R5F101GFDFB#X0 equivalent, key selection criteria include its industrial-grade temperature rating, absence of on-chip data flash (distinguishing it from R5F100x variants), LFQFP-48 package compatibility, and support for background data flash rewriting via BGO.
Technical Context
The R5F101GFDFB#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). Its memory subsystem includes 128 KB code flash (1 KB block size), no integrated data flash (per part numbering convention), and 12 KB SRAM - with flash library RAM usage starting at address F7F00H for self-programming operations.
Peripheral integration includes up to 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, 16 × 16-bit timer channels, real-time clock with calendar/alarm/correction, and dual UART/LIN-capable serial interfaces. Power management supports HALT, STOP, and SNOOZE modes, with on-chip POR and LVD (14-level selectable reset/interrupt).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low-power interrupt response. |
| Max Operating Frequency | 32 MHz; delivers 41 DMIPS performance for real-time control loops and protocol stacks. |
| Flash Memory | 128 KB code flash (1 KB erase blocks); supports secure block protection and boot swap functionality. |
| RAM | 12 KB on-chip SRAM; includes dedicated flash library RAM area starting at F7F00H for self-programming. |
| ADC Resolution & Channels | 10-bit resolution with up to 26 analog inputs; includes internal 1.45 V reference and temperature sensor for calibration-free sensing. |
| Operating Voltage & Temp | 1.6 V to 5.5 V supply; -40°C to +105°C ambient range (G-grade industrial qualification). |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active); enables battery-powered operation for >10-year sensor node life. |
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 and I/O rail decoupling; supports mixed-voltage I/O (1.8/2.5/3.0 V interface capability). |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57 | General-purpose I/O ports | 48 total I/O pins; configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up enabled; supports key interrupt and clock/buzzer output functions. |
| P10/P11 | SPI0 clock/data (SCK00/SI00) | Dedicated CSI (SPI-compatible) interface pins; enable daisy-chain sensor communication without GPIO bit-banging overhead. |
| P12/P13 | UART0 TX/RX (TxD0/RxD0) | Full-duplex asynchronous serial interface; LIN bus compliant for automotive body electronics and industrial fieldbus nodes. |
| P20/P21 | ADC reference inputs (AVREFP/AVREFM) | External analog reference pair; allows precision ratiometric measurements independent of VDD fluctuations. |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits for fail-safe initialization. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 66 μA/MHz active current and 0.57 μA STOP mode enable multi-year battery life in wireless sensor nodes. |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction eliminate need for external RTC IC and reduce BOM count. |
| Background data flash rewrite | Not applicable - R5F101x series lacks on-chip data flash per part numbering; simplifies firmware update logic vs. R5F100x. |
| On-chip debug and self-programming | Integrated debug interface and flash shield window allow secure in-field firmware updates without external programmers. |
| Mixed-voltage I/O interface | N-ch open drain I/O with 6 V tolerance and selectable withstand voltage modes enable direct connection to 1.8/2.5/3.0 V peripherals. |
Applications
| Industrial Temperature Sensor Node | Smart HVAC Actuator Controller |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity node deployed in factory environments with ambient extremes up to +105°C. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, data preprocessing, low-power radio scheduling, and RTC-based wake-up. Use Value: 0.57 μA STOP mode with RTC maintains timekeeping while extending battery life beyond 10 years; 10-bit ADC with internal reference ensures ±1°C accuracy without external components. |
Use Scenario: Compact actuator module controlling damper position and airflow in commercial HVAC systems. IC Role / Device Role / Timing Role: Real-time motion control unit managing PWM-driven motor drivers, feedback loop closure, and LIN bus communication with central controller. Use Value: 41 DMIPS at 32 MHz supports closed-loop PID computation within 50 μs; LIN-compliant UART enables drop-in replacement of legacy actuator modules. |
| Programmable Logic Relay | Industrial Motor Monitor |
|
Use Scenario: DIN-rail mounted relay with configurable I/O mapping and logic sequencing for machine safety interlocks. IC Role / Device Role / Timing Role: Deterministic state-machine executor with precise timing for safety-critical input sampling and output assertion. Use Value: HALT mode reduces power during idle states while maintaining full interrupt responsiveness; 16-bit timer channels provide sub-millisecond timing resolution for pulse-width modulation and delay generation. |
Use Scenario: Retrofit motor monitor measuring current, voltage, and temperature to detect winding faults and bearing degradation. IC Role / Device Role / Timing Role: Signal acquisition and feature extraction engine performing RMS calculation, harmonic analysis, and thermal trend logging. Use Value: 26-channel 10-bit ADC captures simultaneous phase currents and thermistor readings; 12 KB RAM buffers waveform segments for FFT processing without external memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GFDFB#X0 | Same 48-pin LFQFP package and 128 KB flash, but includes 8 KB on-chip data flash and supports background rewriting (BGO). | Preferred where firmware must store calibrated sensor offsets or user configuration without external EEPROM. | Select R5F100GFDFB#X0 if nonvolatile parameter storage is required; otherwise R5F101GFDFB#X0 reduces cost and complexity. |
| R5F101GFDFA#V0 | Identical core, memory, and peripherals, but in 52-pin LQFP-0.65mm package with different pinout and larger footprint. | Suitable when additional GPIO or peripheral routing flexibility is needed, or when migrating from legacy 52-pin designs. | Choose R5F101GFDFA#V0 only if board layout requires more I/O routing headroom; pinout incompatibility prevents direct substitution. |
Compared with R5F100GFDFB#X0, the R5F101GFDFB#X0 eliminates data flash to lower cost and simplify firmware architecture, while retaining identical performance and industrial temperature rating; versus R5F101GFDFA#V0, it offers higher pin density and smaller PCB area at the expense of reduced I/O routing flexibility.
Availability
R5F101GFDFB#X0 is available at Aetrix Electronics and suitable for industrial temperature sensor nodes, smart HVAC actuators, programmable logic relays, and motor monitoring systems requiring stable component supply across extended product lifecycles.
Supply support for R5F101GFDFB#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 industrial, automotive, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - delivering high integration, robust industrial qualification, and toolchain continuity with Renesas' CS+ and e² studio ecosystems.
FAQ
Does R5F101GFDFB#X0 include on-chip data flash memory?
No, R5F101GFDFB#X0 does not include on-chip data flash memory. Per Renesas part numbering convention, the "101" prefix indicates absence of data flash, distinguishing it from "100"-series variants like R5F100GFDFB#X0 which integrate 8 KB data flash. Firmware must use code flash sectors or external memory for nonvolatile parameter storage.
What is the maximum operating temperature specification for R5F101GFDFB#X0?
The R5F101GFDFB#X0 is rated for industrial operation from –40°C to +105°C ambient temperature (G-grade qualification). This specification is confirmed in the RL78/G13 datasheet Section 1.1 under "Operating ambient temperature" and applies to all electrical characteristics unless otherwise noted in timing tables.
Which development tools support R5F101GFDFB#X0 firmware debugging and programming?
R5F101GFDFB#X0 is fully supported by Renesas' CS+ IDE and e² studio with E1/E20 emulators. The on-chip debug interface complies with IEEE 1149.1 (JTAG) and SWD protocols, enabling real-time debugging, flash programming, and trace capabilities without requiring external debug headers or adapters.
Can R5F101GFDFB#X0 operate from a 1.8 V supply rail?
Yes, R5F101GFDFB#X0 supports operation from 1.6 V to 5.5 V, including 1.8 V nominal supply. At 1.8 V, maximum operating frequency is reduced to 16 MHz per the datasheet's DC characteristics table, maintaining full peripheral functionality except for high-speed oscillator modes above 24 MHz.
How many UART channels does R5F101GFDFB#X0 provide, and do they support LIN bus?
R5F101GFDFB#X0 provides two UART channels (UART0 and UART1), both fully compliant with LIN 2.2 protocol specifications. Each channel supports automatic LIN header detection, checksum calculation, and slave node response timing - enabling seamless integration into automotive body electronics and industrial fieldbus networks.
R5F101GFDFB#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:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K 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:
R5F101GFDFB#X0 FAQ
1.How can I place an order for R5F101GFDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101GFDFB#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 R5F101GFDFB#X0 reliable?
The price and inventory of R5F101GFDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101GFDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101GFDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101GFDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101GFDFB#X0?
R5F101GFDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101GFDFB#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 R5F101GFDFB#X0?
For technical support, including R5F101GFDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101GFDFB#X0 requirements.
6.How does Aetrix verify that R5F101GFDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101GFDFB#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 R5F101GFDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101GFDFB#X0?
All R5F101GFDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101GFDFB#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 R5F101GFDFB#X0 part is unused and in its original packaging.
Return procedure for R5F101GFDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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