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Renesas R5F101BGANA#20
- Part No.:
- R5F101BGANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F101BGANA#20.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,470
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Product details
Overview
R5F101BGANA#20 from Renesas is a 32-bit RL78/G13 microcontroller with no data flash, 96 KB code flash, 8 KB RAM, and VFBGA-32 package (0.4 mm pitch). It operates from 1.6–5.5 V, achieves 41 DMIPS at 32 MHz, and supports ultra-low-power modes (0.57 μA in RTC+LVD mode), targeting battery-powered industrial sensors and smart metering interfaces.
For engineers reviewing the R5F101BGANA#20 datasheet, R5F101BGANA#20 pinout, R5F101BGANA#20 application, or R5F101BGANA#20 equivalent, key selection criteria include its 32-pin VFBGA footprint, absence of data flash, industrial-grade temperature range (−40°C to +105°C), and integrated peripherals including 10-bit ADC (26 channels), RTC, and multiple serial interfaces (CSI, UART/LIN, I²C).
Technical Context
The R5F101BGANA#20 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz) and supports HALT/STOP/SNOOZE low-power states.
Peripherals include up to 16× 16-bit timers, 1× real-time clock with calendar/alarm, 1× watchdog timer, 2–4-channel DMA, and hardware multiplier/divider. Serial connectivity comprises 2–8 CSI channels, 2–4 UART/LIN channels, and 3–10 I²C/Simplified I²C channels - all confirmed for this variant per RL78/G13 family specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 32-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for deterministic real-time control |
| Memory | 96 KB code flash, 8 KB RAM, no data flash - suitable for firmware-only applications without field-updatable nonvolatile parameter storage |
| Supply Voltage | 1.6–5.5 V - enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains |
| Low-Power Modes | 0.57 μA (RTC + LVD active), 66 μA/MHz active - extends battery life in always-on sensing nodes |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference - supports multi-sensor analog acquisition without external references |
| Temperature Range | −40°C to +105°C (Industrial G-grade) - qualified for under-hood automotive modules and factory-floor controllers |
Pinout & Package
VFBGA-32 package (4 mm × 4 mm, 0.4 mm pitch), 32-terminal ball grid array with standard I/O, power, and debug interface layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial clock input/output | Shared CSI0 clock or I²C SCL - enables dual-protocol use on same pin with software configuration |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data input/UART receive/I²C data | Multi-function pin supporting SPI slave-in, UART RX, debug receive, and I²C SDA - reduces external component count |
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary ADC channel 0 input or selectable AVREFP source - allows ratiometric sensor measurements |
| P21/ANI1/AVREFM | Analog input / ADC reference negative | Primary ADC channel 1 input or selectable AVREFM source - enables differential ADC operation |
| P22/ANI2 | Analog input | Dedicated ADC channel 2 - supports simultaneous sampling with other ANI pins |
| P147/ANI18 | Analog input | High-numbered ADC channel (18) - accessible only on 32-pin+ variants, enabling expanded sensor arrays |
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling in compact BGA layout |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/LVD assertion - ensures reliable startup under brownout |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Enables firmware updates in-system using boot swap and flash shield window - no external programmer required in deployed units |
| Background data flash operation | Not applicable - R5F101BGANA#20 has no data flash, eliminating BGO complexity and simplifying memory management |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control and filtering algorithms |
| DMA controller | 4-channel DMA with 2-clock transfers between SFR and RAM - offloads CPU during ADC buffering or UART streaming |
| Real-time clock | Calendar-based RTC with alarm and clock correction - maintains accurate timekeeping across power cycles without external crystal |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Residential electricity meter with pulse counting, tariff switching, and secure communication via PLC or RF. IC Role / Device Role / Timing Role: Main system controller executing metrology firmware, managing secure bootloader, and driving isolated RS-485/PLC PHY interface. Use Value: 96 KB flash accommodates dual-application firmware (metering + comms); 10-bit ADC with 26 channels supports auxiliary voltage/current/temperature monitoring. | Use Scenario: Wireless vibration/temperature node in predictive maintenance systems, operating on coin-cell battery for >5 years. IC Role / Device Role / Timing Role: Low-power acquisition engine sampling piezoelectric and thermistor sensors, then transmitting via BLE or Sub-GHz radio. Use Value: 0.57 μA STOP mode with RTC wake-up enables precise duty-cycled sampling; 32-pin VFBGA fits miniaturized PCB designs. |
| Automotive Body Control Module | Home Appliance Motor Controller |
Use Scenario: Door module managing window lift, mirror fold, and interior lighting with LIN bus communication. IC Role / Device Role / Timing Role: LIN transceiver interface controller with PWM generation for motor drivers and GPIO expansion for switch inputs. Use Value: −40°C to +105°C rating meets automotive under-dash requirements; integrated LIN-capable UART eliminates external transceiver. | Use Scenario: Brushless DC motor control in HVAC blowers or washing machine drum drives, requiring commutation timing and current sensing. IC Role / Device Role / Timing Role: Real-time commutation sequencer using 16-bit timers and ADC-triggered PWM, synchronized to rotor position feedback. Use Value: Hardware multiplier accelerates Clarke/Park transforms; 41 DMIPS provides headroom for field-oriented control loops at 20 kHz switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100BGANA#20 | Includes 8 KB data flash; otherwise identical flash/RAM/peripherals/package | Required when nonvolatile parameter storage (calibration, counters, logs) is needed alongside firmware | Select R5F100BGANA#20 if field-updatable configuration data must survive power loss without external EEPROM |
| R5F101BGBG#20 | Same core/memory/peripherals but in 32-pin HWQFN (5×5 mm, 0.5 mm pitch) instead of VFBGA | Better suited for manual assembly or rework; larger footprint eases thermal management and probe access | Choose R5F101BGBG#20 for prototyping, low-volume production, or environments where BGA rework is impractical |
Compared with R5F100BGANA#20, the R5F101BGANA#20 saves board space and cost by omitting data flash, while R5F101BGBG#20 trades miniaturization for assembly flexibility - both retain full peripheral compatibility and industrial temperature support.
Availability
R5F101BGANA#20 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and automotive body electronics requiring stable component supply, long-term lifecycle assurance, and industrial-temperature-rated MCU performance.
Supply support for R5F101BGANA#20 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 32-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F101BGANA#20?
The R5F101BGANA#20 operates at up to 32 MHz, delivering 41 DMIPS of processing performance. This is achieved using the RL78 CPU core's 3-stage pipeline and high-speed on-chip oscillator. The device maintains this performance across its full 1.6–5.5 V supply range and −40°C to +105°C temperature range, making R5F101BGANA#20 suitable for deterministic real-time tasks in demanding environments.
Does the R5F101BGANA#20 include data flash memory?
No, the R5F101BGANA#20 does not include data flash memory. It features 96 KB of code flash and 8 KB of RAM only. Data flash is present in the R5F100x series (e.g., R5F100BGANA#20), but omitted in the R5F101x series to reduce cost and simplify firmware architecture for applications that store parameters externally or do not require field-updatable nonvolatile data storage. This is a defining characteristic of the R5F101BGANA#20.
What package type and pin count does the R5F101BGANA#20 use?
The R5F101BGANA#20 uses a 32-pin VFBGA package (4 mm × 4 mm, 0.4 mm ball pitch), identified by the "BG" suffix in the part number. This fine-pitch ball grid array enables high-density PCB layouts ideal for space-constrained applications such as smart meters and wearable industrial sensors. The R5F101BGANA#20 is not offered in QFP or SOP packages - only VFBGA for this specific variant.
Which serial communication interfaces are supported by the R5F101BGANA#20?
The R5F101BGANA#20 supports CSI (Simplified SPI), UART/LIN, and I²C/Simplified I²C interfaces. Specifically, it includes up to 8 CSI channels, up to 4 UART/LIN channels (with LIN physical layer compliance), and up to 10 I²C channels. These are fully integrated peripherals with dedicated registers and DMA support - no external transceivers or protocol converters are needed for basic implementation of R5F101BGANA#20-based communication subsystems.
What low-power modes are available on the R5F101BGANA#20, and what is the lowest current consumption?
The R5F101BGANA#20 supports HALT, STOP, and SNOOZE low-power modes. In STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) active, it consumes 0.57 μA typical. Active-mode current is 66 μA per MHz, enabling efficient operation in battery-powered applications. All low-power modes retain RAM content and allow wake-up via interrupts or RTC alarm - critical for maintaining state in intermittently active R5F101BGANA#20 deployments.
R5F101BGANA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-WFQFN Exposed Pad
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 22
- 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 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101BGANA#20 FAQ
1.How can I place an order for R5F101BGANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101BGANA#20 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 R5F101BGANA#20 reliable?
The price and inventory of R5F101BGANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101BGANA#20 is usually 5 days.
3.What payment methods are accepted for R5F101BGANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101BGANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101BGANA#20?
R5F101BGANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101BGANA#20 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 R5F101BGANA#20?
For technical support, including R5F101BGANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101BGANA#20 requirements.
6.How does Aetrix verify that R5F101BGANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F101BGANA#20 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 R5F101BGANA#20 meets industry standards.
7.What is the process for return or replacement of R5F101BGANA#20?
All R5F101BGANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101BGANA#20, 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 R5F101BGANA#20 part is unused and in its original packaging.
Return procedure for R5F101BGANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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