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Renesas R5F101LGDFB#X0
- Part No.:
- R5F101LGDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LGDFB#X0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,266
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Product details
Overview
R5F101LGDFB#X0 from Renesas is a 64-pin LFQFP, 0.5-mm pitch, industrial-grade RL78/G13 16-bit microcontroller with 96 KB flash, 8 KB RAM, no data flash, and -40°C to +85°C operation. It integrates 16-bit timer (12 channels), 10-bit ADC (26 channels), RTC, UART/SPI/I²C interfaces, and ultra-low-power HALT/STOP modes for embedded control in space-constrained industrial sensors and motor drives.
For engineers reviewing the R5F101LGDFB#X0 datasheet, R5F101LGDFB#X0 pinout, R5F101LGDFB#X0 application, or R5F101LGDFB#X0 equivalent, key selection criteria include its 96 KB code flash without data flash, 64-pin LFQFP-0.5 mm package, industrial temperature rating, and absence of on-chip data flash memory-critical for firmware update architecture decisions.
Technical Context
The R5F101LGDFB#X0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (@32 MHz) to 30.5 μs (@32.768 kHz). It operates across 1.6–5.5 V and delivers 41 DMIPS at 32 MHz using its high-accuracy ±1.0% on-chip oscillator.
It features DMA (4 channels), 16×16-bit multiply/32-bit divide hardware, background data flash rewrite capability (not applicable here), and peripheral flexibility including up to 10 I²C channels, 4 UART/LIN channels, and 8 CSI/SPI channels-all configurable via register-based control logic without external clock dependencies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz delivering 41 DMIPS; enables real-time control loop execution within <25 μs |
| Flash Memory | 96 KB code flash only; no on-chip data flash-requires external EEPROM or flash for parameter storage |
| RAM Size | 8 KB on-chip RAM; sufficient for RTOS stacks, sensor buffers, and communication protocol handling |
| ADC Resolution & Channels | 10-bit SAR ADC with 26 input channels; supports simultaneous sampling for multi-sensor monitoring |
| Operating Voltage Range | 1.6 V to 5.5 V; allows direct interface with 3.3 V and 5 V peripherals without level shifters |
| Temperature Range | -40°C to +85°C (industrial grade); validated for use in factory automation and HVAC environments |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support separate analog/digital supply filtering; decoupling required per Renesas layout guidelines |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77 | General-purpose I/O ports | Configurable as CMOS input/output, N-ch open drain (6 V tolerant), or with internal pull-up; supports 1.8/2.5/3.0 V logic interfacing |
| P10/P11 | SCK00/SCL00 and SI00/RxD0 | Dual-function pins supporting SPI master/slave or I²C bus communication; shared with debug TOOLRxD |
| P20/P21 | ANI0/AVREFP and ANI1/AVREFM | Analog inputs with dedicated reference voltage pins; enable ratiometric measurement accuracy for sensor signal conditioning |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits for autonomous brown-out recovery |
| CLKP/CLKM | External crystal oscillator inputs | Support 32.768 kHz crystal for RTC; optional external main clock up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA typical current draw with RTC and LVD active-enables battery-powered operation for >10 years |
| Hardware multiplier/divider | 16×16-bit multiply and 32÷32-bit divide executed in single-cycle; accelerates PID computation and digital filter implementation |
| Real-time clock (RTC) | Calendar function (99-year range), alarm, and auto-correction; eliminates need for external RTC IC in time-stamped logging |
| On-chip voltage detector (LVD) | 14 programmable threshold levels; triggers interrupt or reset to prevent erratic behavior during brown-out conditions |
| Multi-channel serial interface | Up to 4 UART/LIN, 10 I²C, and 8 CSI channels-supports concurrent communication with displays, sensors, and CAN transceivers via LIN gateway |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Brushless DC motor commutation in HVAC blowers and pump controllers. IC Role / Device Role / Timing Role: Real-time PWM generation, ADC-based current sensing, and closed-loop speed regulation via 16-bit timers and 10-bit ADC. Use Value: 41 DMIPS at 32 MHz ensures sub-50 μs control loop execution; STOP mode reduces standby consumption to 0.57 μA for energy-efficient intermittent operation. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ via analog and digital sensors. IC Role / Device Role / Timing Role: Sensor interface hub managing I²C sensor reads, 10-bit ADC acquisition, and low-power RTC-triggered wake-up cycles. Use Value: HALT mode draws 66 μA/MHz; combined with RTC alarm wakeup, extends AA battery life beyond 3 years without recharging. |
| Programmable Logic Controller (PLC) I/O Module | Home Appliance Control Panel |
Use Scenario: DIN-rail mounted I/O expansion module with digital input debouncing, relay drive, and Modbus RTU over UART. IC Role / Device Role / Timing Role: GPIO management, UART-based protocol stack execution, and watchdog supervision for fail-safe operation. Use Value: 64-pin LFQFP provides ample I/O (up to 52 GPIO) and noise-immune layout; industrial temp rating ensures reliability in control cabinet environments. |
Use Scenario: Touch-enabled front panel controller for washing machines and dishwashers with buzzer feedback and LED indicators. IC Role / Device Role / Timing Role: Capacitive touch sensing, buzzer tone generation, LED PWM dimming, and button scan via on-chip key interrupt and clock output controller. Use Value: Integrated buzzer output and clock generator eliminate external drivers; 1.6–5.5 V operation simplifies power design across 3.3 V MCU and 5 V display subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LGAFB#X0 | Same 96 KB flash, 8 KB RAM, 64-pin LFQFP, but includes 4 KB data flash memory | Enables field firmware updates and nonvolatile parameter storage without external memory | Select when runtime reprogramming or configuration persistence is required |
| R5F100LGDFB#X0 | Identical package and pinout, but includes 8 KB data flash and operates at -40°C to +105°C (G-grade) | Supports extended temperature environments such as engine bay or industrial oven controls | Select for high-temp deployments where data flash is acceptable overhead |
Compared with R5F101LGDFB#X0, R5F101LGAFB#X0 adds data flash for local parameter storage but shares identical code flash and I/O resources, while R5F100LGDFB#X0 trades data flash for extended temperature tolerance-making each suitable for distinct firmware architecture and environmental requirements.
Availability
R5F101LGDFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and home appliance control panels requiring stable component supply and long-term production continuity.
Supply support for R5F101LGDFB#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 ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial embedded systems requiring robust peripheral integration and long-term supply assurance.
FAQ
Does R5F101LGDFB#X0 include on-chip data flash memory?
No, R5F101LGDFB#X0 does not include on-chip data flash memory. It provides 96 KB of code flash only. This distinguishes it from variants like R5F101LGAFB#X0 (which includes 4 KB data flash) and aligns with designs that rely on external nonvolatile memory or avoid in-field parameter updates. The R5F101LGDFB#X0 datasheet explicitly states "Data flash is not provided" in its part number decoding.
What is the maximum operating frequency and performance of R5F101LGDFB#X0?
R5F101LGDFB#X0 operates at up to 32 MHz with the high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. Its RL78 CPU core achieves a minimum instruction execution time of 0.03125 μs under these conditions. This performance level supports real-time tasks such as motor control loops, sensor fusion, and protocol stack handling without external acceleration.
Which package type and pin count does R5F101LGDFB#X0 use?
R5F101LGDFB#X0 uses a 64-pin LFQFP package with 0.5-mm pitch (10 × 10 mm body). The "FB" suffix in the part number explicitly denotes LFQFP, and the "L" digit indicates 64-pin count per Renesas' RL78/G13 ordering guide. This package supports fine-pitch PCB assembly and provides 52 usable GPIO pins alongside dedicated analog and communication peripherals.
What temperature range is R5F101LGDFB#X0 rated for?
R5F101LGDFB#X0 is rated for industrial operation from -40°C to +85°C. The "D" in its part number (R5F101LGDFB#X0 → "D" = Industrial, -40°C to +85°C) confirms this grade. It is not rated for the extended -40°C to +105°C range (G-grade), which applies to parts like R5F100LGDFB#X0. Thermal validation per R01DS0131EJ0380 confirms full functionality across this range.
Can R5F101LGDFB#X0 support real-time clock (RTC) functionality?
Yes, R5F101LGDFB#X0 includes a fully integrated real-time clock (RTC) peripheral with calendar support (99-year range), alarm interrupt, and automatic clock correction. It operates independently in STOP mode with only 0.57 μA current draw, using either the 32.768 kHz crystal or internal sub-system clock. This eliminates the need for external RTC ICs in time-critical logging or scheduling applications.
R5F101LGDFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 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#X0 FAQ
1.How can I place an order for R5F101LGDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LGDFB#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 R5F101LGDFB#X0 reliable?
The price and inventory of R5F101LGDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LGDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LGDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LGDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LGDFB#X0?
R5F101LGDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LGDFB#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 R5F101LGDFB#X0?
For technical support, including R5F101LGDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LGDFB#X0 requirements.
6.How does Aetrix verify that R5F101LGDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LGDFB#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 R5F101LGDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LGDFB#X0?
All R5F101LGDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LGDFB#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 R5F101LGDFB#X0 part is unused and in its original packaging.
Return procedure for R5F101LGDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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