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Renesas R5F101LGABG#U0
- Part No.:
- R5F101LGABG#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-VFBGA
- Datasheet:
-
R5F101LGABG#U0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64VFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:980
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Product details
Overview
R5F101LGABG#U0 from Renesas is a 64-pin VFBGA-packaged RL78/G13 16-bit microcontroller with 96 KB flash, 8 KB data flash, and 8 KB RAM, operating from 1.6–5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power modes (0.57 μA RTC+LVD), 10-bit ADC (26 channels), real-time clock, and multiple serial interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101LGABG#U0 datasheet, R5F101LGABG#U0 pinout, R5F101LGABG#U0 application, or R5F101LGABG#U0 equivalent, key selection criteria include its VFBGA-64 package footprint, absence of on-chip data flash (R5F101x series), industrial-grade temperature range (−40°C to +105°C), and integrated low-power peripherals for energy-constrained embedded control.
Technical Context
The R5F101LGABG#U0 implements the RL78 CPU core with 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 includes dedicated hardware for DMA (4 channels), multiplier/divider, and BCD correction - enabling deterministic real-time response in closed-loop control.
Its peripheral set integrates 16× 16-bit timers, 1× 12-bit interval timer, 1× calendar-capable RTC with alarm and clock correction, 1× watchdog timer, and three independent serial interface groups (CSI, UART/LIN, I²C), all configurable via register-based control without external timing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz (41 DMIPS); supports dynamic switching between high-speed oscillator (±1.0% accuracy) and low-speed 32.768 kHz crystal |
| Memory | 96 KB code flash (1 KB block size), 8 KB RAM, no on-chip data flash (R5F101x series) |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE - enables multi-year battery life in wake-on-event systems |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor (enabled only in HS mode) |
| Serial Interfaces | Up to 8 CSI channels, 4 UART/LIN channels, and 10 I²C/Simplified I²C channels - supports mixed-protocol communication stacks |
| Operating Temp | −40°C to +105°C (Industrial G-grade), qualified for extended thermal cycling in sealed enclosures |
Pinout & Package
VFBGA-64 package (4 mm × 4 mm, 0.4 mm pitch), 0.75 mm max height, Pb-free, RoHS-compliant - designed for high-density PCB layouts with minimal board area and thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00 / SCL00 | Primary SPI clock or I²C clock line; shared function enables dual-interface reuse on same pins |
| P11 | SI00 / RxD0 / TOOLRxD / SDA00 | Multi-role pin supporting SPI input, UART receive, debug tool interface, and I²C data - simplifies test and field update wiring |
| P12 | SO00 / TxD0 / TOOLTxD / SCL01 | Shared SPI output, UART transmit, debug output, and secondary I²C clock - reduces need for external level shifters |
| P13 | SS00 / RTS0 / SDA01 | SPI slave select, UART RTS flow control, or secondary I²C data - supports hardware handshaking in noisy environments |
| P20 | ANI0 / AVREFP | Analog input channel 0 and positive reference voltage input - allows ratiometric sensing with external precision references |
| P21 | ANI1 / AVREFM | Analog input channel 1 and negative reference voltage input - enables differential analog measurements without external op-amps |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active - extends coin-cell battery life beyond 10 years in periodic-sense applications |
| On-chip debug support | Fully integrated on-chip debug circuit with SWD interface - eliminates need for external JTAG adapter during development and field firmware updates |
| Self-programming capability | Flash shield window and boot swap functions enable secure over-the-air (OTA) firmware updates without external programmer |
| Hardware-accelerated math | Dedicated 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC units - accelerates PID loop calculations and sensor fusion algorithms |
| Flexible clock system | Configurable high-speed on-chip oscillator (1–32 MHz) with ±1.0% accuracy across full VDD/temperature range - removes external crystal cost and layout complexity |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered gas/water meter with hourly pressure/flow sampling, local display, and RF-based daily data upload. IC Role / Device Role / Timing Role: Main system controller managing ADC acquisition, RTC-triggered wake-up, LIN bus communication with valve actuator, and low-power sleep scheduling. Use Value: Sub-1 μA STOP current with RTC ensures >15-year battery life; integrated LIN transceiver interface reduces BOM count by one IC. |
Use Scenario: Wireless vibration sensor node mounted on rotating machinery, performing FFT-based anomaly detection and transmitting alerts via BLE gateway. IC Role / Device Role / Timing Role: Real-time signal preprocessing unit acquiring 16-bit ADC samples at 10 kHz, executing fixed-point FFT using hardware MAC, and triggering interrupt-driven BLE packet generation. Use Value: 41 DMIPS at 32 MHz enables real-time spectral analysis within 2 ms; 26-channel ADC supports simultaneous multi-axis sensor inputs without external mux. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Compact HVAC remote controller with touch keys, ambient temperature/humidity sensing, IR transmission, and battery backup. IC Role / Device Role / Timing Role: Human interface manager handling capacitive touch scan, I²C sensor reads, IR carrier generation, and RTC-backed event logging. Use Value: On-chip key interrupt and buzzer output controller eliminate external timing ICs; −40°C to +105°C rating ensures reliability in attic-mounted units. |
Use Scenario: DIN-rail mounted lighting control panel with DALI-2 master interface, push-button inputs, LED status indicators, and RS-485 backhaul to central BMS. IC Role / Device Role / Timing Role: Protocol bridge translating DALI commands to PWM dimming signals while maintaining precise 200 μs DALI timing margins and synchronizing with building-wide time-of-day schedule. Use Value: Hardware UART with LIN support enables DALI-2 physical layer compliance; 16-bit timer with dead-time insertion ensures accurate DALI bit timing without CPU overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LGABG#U0 | Includes 4 KB data flash memory; otherwise identical pinout, package, and peripheral set | Required where field-upgradable parameter storage (e.g., calibration tables, device IDs) is needed without external EEPROM | Select when non-volatile parameter retention across power cycles is mandatory and flash wear-leveling is acceptable |
| R5F101LGAFA#V0 | LQFP-64 package (12×12 mm, 0.65 mm pitch); same memory/peripheral spec but different thermal and routing profile | Better suited for prototyping, manual soldering, or designs requiring higher thermal mass and easier rework | Choose for NPI validation, low-volume production, or when VFBGA assembly infrastructure is unavailable |
Compared with R5F100LGABG#U0 and R5F101LGAFA#V0, the R5F101LGABG#U0 provides optimal density and thermal performance for volume production in space-constrained industrial modules, trading data flash capability for lower cost and identical low-power behavior.
Availability
R5F101LGABG#U0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across multi-year product lifecycles.
Supply support for R5F101LGABG#U0 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 delivers true low-power embedded control with integrated peripherals and robust industrial qualification - engineered for cost-sensitive, battery-operated, and thermally demanding applications where reliability and longevity are critical.
FAQ
What is the maximum operating frequency and associated performance of the R5F101LGABG#U0?
The R5F101LGABG#U0 operates at up to 32 MHz with a peak performance of 41 DMIPS. Its RL78 CPU core achieves this through a 3-stage pipeline and optimized instruction set, delivering deterministic real-time response for control loops and sensor processing. The high-speed on-chip oscillator maintains ±1.0% accuracy across 1.6–5.5 V and −40°C to +105°C, eliminating need for external crystals in most applications. This makes the R5F101LGABG#U0 well-suited for time-critical embedded tasks without external timing components.
Does the R5F101LGABG#U0 include on-chip data flash memory?
No, the R5F101LGABG#U0 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-less variant series. It retains 96 KB of code flash and 8 KB of RAM, but parameter storage must be implemented externally or via code flash emulation. In contrast, the R5F100x series (e.g., R5F100LGABG#U0) includes 4 KB of dedicated data flash. This distinction directly affects firmware architecture for field-upgradable configurations in the R5F101LGABG#U0.
What package type and footprint does the R5F101LGABG#U0 use?
The R5F101LGABG#U0 uses a VFBGA-64 package (4 mm × 4 mm, 0.4 mm pitch, 0.75 mm max height), identified by the "BG" suffix and "#U0" tray packaging code. This fine-pitch ball grid array enables high I/O density and superior thermal performance in compact industrial modules. Its footprint differs significantly from LQFP or QFN variants - requiring controlled-depth reflow, X-ray inspection, and compatible PCB stack-up. The R5F101LGABG#U0's VFBGA is not pin-compatible with LQFP-64 versions like R5F101LGAFA#V0, despite identical signal functionality.
What are the supported low-power modes and their typical current consumption for the R5F101LGABG#U0?
The R5F101LGABG#U0 supports HALT (66 μA/MHz), STOP (0.57 μA with RTC + LVD active), and SNOOZE modes. In STOP mode, only the 32.768 kHz RTC and low-voltage detector remain powered - enabling decade-long battery life in periodic wake-up applications such as utility meters or environmental sensors. Wake-up sources include external interrupts, RTC alarms, and LVD events. These modes are fully documented in the R01DS0131EJ0380 datasheet and require no external components, making the R5F101LGABG#U0 ideal for energy-harvesting and coin-cell-powered designs.
Which serial communication protocols are natively supported by the R5F101LGABG#U0?
The R5F101LGABG#U0 natively supports three serial protocol families: CSI (Renesas' SPI-compatible interface, up to 8 channels), UART/LIN (up to 4 channels with LIN 2.2 compliance), and I²C/Simplified I²C (up to 10 channels). Each peripheral group has independent clocking and interrupt vectors, allowing concurrent operation - for example, CSI for sensor readout, UART for host communication, and I²C for EEPROM access. All are register-configurable with programmable baud rates and error detection, and no external transceivers are required for basic implementation of the R5F101LGABG#U0.
R5F101LGABG#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-VFBGA
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Active
- 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:
R5F101LGABG#U0 FAQ
1.How can I place an order for R5F101LGABG#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LGABG#U0 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 R5F101LGABG#U0 reliable?
The price and inventory of R5F101LGABG#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LGABG#U0 is usually 5 days.
3.What payment methods are accepted for R5F101LGABG#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LGABG#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LGABG#U0?
R5F101LGABG#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LGABG#U0 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 R5F101LGABG#U0?
For technical support, including R5F101LGABG#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LGABG#U0 requirements.
6.How does Aetrix verify that R5F101LGABG#U0 is sourced from the original manufacturer or authorized distributors?
All R5F101LGABG#U0 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 R5F101LGABG#U0 meets industry standards.
7.What is the process for return or replacement of R5F101LGABG#U0?
All R5F101LGABG#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LGABG#U0, 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 R5F101LGABG#U0 part is unused and in its original packaging.
Return procedure for R5F101LGABG#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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