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Renesas R5F101LGDFB#V0
- Part No.:
- R5F101LGDFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LGDFB#V0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,794
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Product details
Overview
R5F101LGDFB#V0 from Renesas is a 64-pin LFQFP, 0.5-mm pitch, industrial-grade RL78/G13 16-bit microcontroller with 96 KB flash, 8 KB data flash, 8 KB RAM, 32 MHz max CPU speed, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode). It integrates 16-bit timers, 10-bit ADC (26 channels), UART/SPI/I²C interfaces, and real-time clock for embedded control in HVAC, motor drives, and smart sensors.
For engineers reviewing the R5F101LGDFB#V0 datasheet, R5F101LGDFB#V0 pinout, R5F101LGDFB#V0 application, or R5F101LGDFB#V0 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature rating (D grade), and support for SNOOZE/STOP/HALT low-power modes in battery-constrained systems.
Technical Context
The R5F101LGDFB#V0 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 subsystem clock). It features dual-clock domains: high-speed main system clock (up to 32 MHz) and independent low-speed subsystem clock for RTC and watchdog.
Its peripheral set includes 16-channel 16-bit timer array, 12-bit interval timer, calendar-capable real-time clock with alarm and correction, 10-bit ADC with internal 1.45 V reference and temperature sensor, and up to 10 I²C/Simplified I²C channels - all configurable without external components for cost-sensitive industrial control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing for real-time control loops. |
| Max Operating Frequency | 32 MHz; delivers 41 DMIPS performance for responsive human-machine interface and sensor fusion. |
| Flash Memory | 96 KB code flash; sufficient for bootloader + application firmware with OTA update partitioning. |
| Data Flash | None (R5F101x series); requires external EEPROM or FRAM for nonvolatile parameter storage. |
| RAM | 8 KB on-chip RAM; supports real-time data buffering, stack depth for nested interrupts, and BGO operations. |
| ADC Resolution & Channels | 10-bit resolution, 26 analog inputs; enables simultaneous monitoring of multiple sensors (voltage, current, temp). |
| Low-Power Modes | HALT (0.57 μA), STOP, SNOOZE; extends battery life in wireless sensor nodes and portable diagnostics tools. |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), RoHS-compliant, industrial-grade (D suffix), tray packaging (#V0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial Clock Input/Output | Shared SPI clock or I²C clock line; supports master/slave operation with programmable slew rate. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial Data In / UART RX / I²C Data | Multi-function pin enabling debug communication (TOOLRxD), sensor interface (SPI), or bus connectivity (I²C). |
| P20/ANI0/AVREFP | Analog Input Channel 0 / ADC Reference Positive | Configurable as primary ADC input or precision reference voltage source for ratiometric measurements. |
| P21/ANI1/AVREFM | Analog Input Channel 1 / ADC Reference Negative | Enables differential ADC measurement or ground-referenced sensing with internal AVSS routing. |
| P50/INTP0/TOOLRST | External Interrupt 0 / Debug Reset | Dual-role pin for hardware-triggered event handling and JTAG/SWD reset during development and field updates. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT mode | 0.57 μA typical current draw with RTC + LVD active - enables >10-year battery life in metering applications. |
| Background Operation (BGO) | Allows full CPU execution from flash while rewriting data flash; eliminates interrupt latency during firmware updates. |
| On-chip voltage detector (LVD) | 14-level selectable threshold (1.6–5.5 V); provides fail-safe brown-out detection and graceful shutdown in power-critical systems. |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction; eliminates need for external RTC IC in time-stamped logging and scheduling. |
| Multi-protocol serial interface | Hardware support for UART (LIN-compatible), SPI (CSI), and I²C on shared pins - reduces PCB layer count and BOM cost. |
Applications
| Smart Thermostats | Industrial Motor Controllers |
|---|---|
|
Use Scenario: Local temperature/humidity sensing, user interface polling, and HVAC actuator control in residential and commercial buildings. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, PID loop execution, display refresh, and relay/valve driver sequencing. Use Value: Integrated 10-bit ADC (26 channels) and 16-bit timers enable precise multi-sensor fusion and PWM generation without external signal conditioning. |
Use Scenario: Closed-loop speed/torque control of BLDC or stepper motors in pumps, fans, and conveyors. IC Role / Device Role / Timing Role: Real-time motion controller executing commutation logic, current sampling, and fault protection within strict timing windows. Use Value: 32 MHz CPU + 41 DMIPS and dedicated 16-bit timer array ensure sub-microsecond interrupt response for field-oriented control (FOC) algorithms. |
| Portable Diagnostic Tools | Energy Monitoring Meters |
|
Use Scenario: Battery-powered handheld testers for voltage, current, resistance, and continuity verification in field service. IC Role / Device Role / Timing Role: System-on-chip managing analog front-end, LCD driver, button interface, and USB/UART communication. Use Value: HALT mode (0.57 μA) and integrated LVD extend single-cell Li-ion battery life beyond 6 months between charges. |
Use Scenario: DIN-rail mounted electricity meters measuring voltage, current, power factor, and energy consumption. IC Role / Device Role / Timing Role: Primary metrology processor performing RMS calculations, tariff switching, and secure data logging. Use Value: On-chip RTC with calendar and 10-bit ADC with internal reference enable accurate time-of-use billing and self-calibration without external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LGDFB#V0 | Includes 4 KB data flash; same 96 KB code flash, 8 KB RAM, and identical pinout/package. | Preferred where firmware needs to store calibration data or configuration parameters internally. | Select when nonvolatile parameter storage is required without external memory. |
| R5F101LGAFA#V0 | 64-pin LQFP-0.65mm (PLQP0064JA-A); same memory, peripherals, and D-grade temperature range. | Suitable for legacy PCBs designed for standard-pitch LQFP; requires layout revision for LFQFP-0.5mm. | Choose for compatibility with existing 0.65-mm pitch footprint designs or thermal management preference. |
Compared with R5F101LGDFB#V0, R5F100LGDFB#V0 adds data flash at no pinout or power cost, while R5F101LGAFA#V0 trades finer pitch for easier hand-soldering and slightly higher thermal resistance - both retain full software compatibility and peripheral feature parity.
Availability
R5F101LGDFB#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart building automation, and portable diagnostic equipment requiring stable component supply across extended product lifecycles.
Supply support for R5F101LGDFB#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 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, integration, and energy efficiency for battery-operated and mains-powered industrial controls.
FAQ
What is the operating temperature range for the R5F101LGDFB#V0?
The R5F101LGDFB#V0 is rated for industrial operation from –40°C to +85°C (D grade), validated across full voltage (1.6–5.5 V) and frequency (up to 32 MHz) ranges. This makes it suitable for deployment in factory-floor controllers, outdoor environmental sensors, and HVAC units without derating.
Does the R5F101LGDFB#V0 include on-chip data flash memory?
No, the R5F101LGDFB#V0 does not include on-chip data flash memory. As indicated by the "101" in its part number (per Renesas RL78/G13 documentation), this variant omits data flash - unlike the "100" series (e.g., R5F100LGDFB#V0) which includes 4 KB. External nonvolatile memory is required for parameter storage.
Which debug interface does the R5F101LGDFB#V0 support?
The R5F101LGDFB#V0 supports Renesas E1/E20 emulator debugging via SWD (Serial Wire Debug) using dedicated pins P50 (TOOLRST) and P51 (TOOLCLK). It does not require external debug headers - the interface is integrated into the 64-pin LFQFP package and enabled by default in ROM bootloader mode.
Can the R5F101LGDFB#V0 operate from a single 1.8 V supply?
Yes, the R5F101LGDFB#V0 supports single-supply operation from 1.6 V to 5.5 V. At 1.8 V, it operates up to 16 MHz (per datasheet voltage-frequency curve), enabling ultra-low-power sensor node designs while maintaining full peripheral functionality including ADC, timers, and serial interfaces.
What is the maximum number of ADC channels supported by the R5F101LGDFB#V0?
The R5F101LGDFB#V0 supports up to 26 analog input channels (ANI0–ANI25) for its 10-bit successive-approximation ADC. All channels share the same reference (AVREFP/AVREFM) and conversion clock, with scan mode enabling automatic sequential sampling across selected inputs without CPU intervention.
R5F101LGDFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 48
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101LGDFB#V0 FAQ
1.How can I place an order for R5F101LGDFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LGDFB#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 R5F101LGDFB#V0 reliable?
The price and inventory of R5F101LGDFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LGDFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F101LGDFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LGDFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LGDFB#V0?
R5F101LGDFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LGDFB#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 R5F101LGDFB#V0?
For technical support, including R5F101LGDFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LGDFB#V0 requirements.
6.How does Aetrix verify that R5F101LGDFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101LGDFB#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 R5F101LGDFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F101LGDFB#V0?
All R5F101LGDFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LGDFB#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 R5F101LGDFB#V0 part is unused and in its original packaging.
Return procedure for R5F101LGDFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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