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Renesas R5F101BFANA#U0
- Part No.:
- R5F101BFANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F101BFANA#U0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,152
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Product details
Overview
R5F101BFANA#U0 from Renesas is a 32-pin HWQFN-packaged RL78/G13 16-bit microcontroller with 64 KB flash, 4 KB data flash, and 4 KB RAM, operating from 1.6 V to 5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), 10-bit ADC (26 channels), and integrated RTC - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101BFANA#U0 datasheet, R5F101BFANA#U0 pinout, R5F101BFANA#U0 application, or R5F101BFANA#U0 equivalent, key selection criteria include its 32-pin HWQFN-0.5mm package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade ('D' suffix), and compatibility with Renesas' RL78 toolchain and CS+ IDE for low-power firmware development.
Technical Context
The R5F101BFANA#U0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting variable instruction execution time (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It integrates a 10-bit A/D converter with internal reference (1.45 V) and temperature sensor, plus real-time clock with calendar, alarm, and clock correction functions.
Power management includes on-chip POR and LVD with 14 selectable voltage detection levels, DMA controller (2 channels), and multiple serial interfaces: CSI (SPI-compatible), UART/LIN (2 channels), and I²C (3 channels). Its memory subsystem supports self-programming with boot swap and flash shield window security features.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 32 MHz (41 DMIPS), with high-accuracy ±1.0% on-chip oscillator (1.8–5.5 V, -20 to +85°C) |
| Memory Configuration | 64 KB code flash, 4 KB RAM, no on-chip data flash (R5F101x series designation) |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE |
| Analog Peripherals | 10-bit A/D converter, 26 input channels, internal 1.45 V reference, integrated temperature sensor |
| Real-Time Clock | Calendar function (99-year range), alarm, and clock correction - operates independently in STOP mode |
| Operating Voltage & Temp | 1.6 V to 5.5 V supply; -40°C to +85°C ambient (industrial 'D' grade) |
Pinout & Package
Package: 32-pin HWQFN (5 × 5 mm, 0.5-mm pitch), exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support mixed-voltage I/O (1.8/2.5/3.0 V interface capability) |
| P00–P07 | General-purpose I/O | Configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up enabled; support key interrupt |
| P10–P17 | Multi-function port | Supports SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD, etc. |
| P20–P27 | Analog input / reference | ANI0–ANI7 inputs; AVREFP/AVREFM pins enable precise 10-bit ADC measurements |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
| CLKP/CLKM | Crystal oscillator terminals | Support external 32.768 kHz crystal for RTC accuracy; also accept CMOS clock input |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active enables multi-year battery life in endpoint devices |
| Integrated RTC with calendar | Hardware calendar (year/month/day/hour/min/sec) with alarm and auto-correction eliminates need for external RTC IC |
| Self-programmable flash | Boot swap and flash shield window allow secure field firmware updates without external programmer |
| Flexible serial connectivity | 2 UART/LIN channels (LIN 2.1 compliant), 3 I²C channels, and 2 CSI channels simplify sensor and actuator interfacing |
| On-chip temperature sensor | Factory-calibrated analog output enables system-level thermal monitoring without external components |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered gas/water meter with pulse counting, pressure sensing, and wireless telemetry. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, RTC-timestamped logging, LIN bus communication to display module, and ultra-low-power sleep scheduling. Use Value: 0.57 μA STOP current extends 10-year battery life; integrated 10-bit ADC and temperature sensor reduce BOM count by two components. | Use Scenario: Wireless vibration/temperature node in predictive maintenance system with edge FFT processing. IC Role / Device Role / Timing Role: Real-time data acquisition hub synchronizing accelerometer sampling via timer-triggered ADC, buffering results in RAM, and transmitting via UART to BLE module. Use Value: 41 DMIPS at 32 MHz enables lightweight FFT computation; SNOOZE mode allows background ADC conversion during CPU sleep. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: MCU in HVAC remote control with IR receiver, button matrix, LCD driver, and battery backup. IC Role / Device Role / Timing Role: System manager handling key scan interrupts, IR decode timing, segment LCD drive, and RTC-backed event scheduling (e.g., weekly timer). Use Value: On-chip key interrupt and clock output/buzzer controller eliminate 3 discrete support ICs; 1.6 V min operation ensures reliable start-up from depleted batteries. | Use Scenario: Standalone lighting control panel with touch buttons, LED dimming, and DALI bus interface. IC Role / Device Role / Timing Role: DALI master controller executing protocol stack, PWM dimming generation, and capacitive touch sensing using ADC-based charge-transfer method. Use Value: 26-channel 10-bit ADC supports simultaneous multi-electrode touch sensing; hardware UART with LIN support simplifies DALI transceiver integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100BFANA#U0 | Same package and pinout; includes 8 KB data flash (R5F100x series), 8 KB RAM | Required where firmware requires EEPROM-like nonvolatile data storage without external SPI flash | Select when data logging, calibration storage, or parameter retention across power cycles is needed |
| R5F101BGANA#U0 | Same R5F101x family; 128 KB flash, 12 KB RAM, same 32-pin HWQFN package | Suitable for applications needing larger code space for complex protocols (e.g., Modbus TCP offload) or expanded peripheral drivers | Choose when firmware size exceeds 64 KB or additional RAM is required for buffer-intensive tasks |
Compared with R5F100BFANA#U0, the R5F101BFANA#U0 reduces BOM cost by eliminating data flash while maintaining identical low-power performance and peripheral set; versus R5F101BGANA#U0, it trades flash/RAM headroom for tighter cost control in resource-constrained designs.
Availability
R5F101BFANA#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, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F101BFANA#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 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated industrial and consumer applications demanding sub-μA sleep currents and integrated analog peripherals.
FAQ
What is the flash memory configuration of the R5F101BFANA#U0?
The R5F101BFANA#U0 contains 64 KB of on-chip code flash memory and no integrated data flash - consistent with the R5F101x series designation indicating "data flash not provided." It supports self-programming with boot swap and flash shield window security features, enabling secure firmware updates in the field without external programming hardware.
Does the R5F101BFANA#U0 support LIN bus communication?
Yes, the R5F101BFANA#U0 supports LIN bus communication via its UART peripheral, which is LIN 2.1 compliant. Two UART channels are available (UART0 and UART1), each configurable for LIN master or slave operation with automatic sync-break detection, checksum calculation, and identifier filtering - essential for automotive body electronics and industrial sub-networks.
What is the operating temperature range for the R5F101BFANA#U0?
The R5F101BFANA#U0 is rated for industrial operation from -40°C to +85°C, indicated by the 'D' in its part number family (R5F101Bx → 'D' grade). This specification is validated across the full 1.6 V to 5.5 V supply range and applies to all embedded peripherals including ADC, RTC, and oscillators.
How many analog input channels does the R5F101BFANA#U0 support?
The R5F101BFANA#U0 supports up to 26 analog input channels for its 10-bit A/D converter. Inputs include dedicated ANI0–ANI7 pins and multiplexed functions on ports P0–P2. The ADC features an internal 1.45 V reference voltage and factory-calibrated temperature sensor, both accessible without external components.
Is the R5F101BFANA#U0 pin-compatible with other RL78/G13 variants in the same package?
Yes, the R5F101BFANA#U0 is pin-compatible with all other RL78/G13 MCUs in the 32-pin HWQFN package (e.g., R5F100BFANA#U0, R5F101BGANA#U0), sharing identical pin functions and electrical characteristics. This enables drop-in replacement for memory or feature scaling - for example, upgrading to R5F101BGANA#U0 adds 64 KB flash and 8 KB RAM without PCB changes.
R5F101BFANA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-WFQFN Exposed Pad
- 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:
- 22
- 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 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101BFANA#U0 FAQ
1.How can I place an order for R5F101BFANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101BFANA#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 R5F101BFANA#U0 reliable?
The price and inventory of R5F101BFANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101BFANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F101BFANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101BFANA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101BFANA#U0?
R5F101BFANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101BFANA#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 R5F101BFANA#U0?
For technical support, including R5F101BFANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101BFANA#U0 requirements.
6.How does Aetrix verify that R5F101BFANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F101BFANA#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 R5F101BFANA#U0 meets industry standards.
7.What is the process for return or replacement of R5F101BFANA#U0?
All R5F101BFANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101BFANA#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 R5F101BFANA#U0 part is unused and in its original packaging.
Return procedure for R5F101BFANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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