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Renesas R5F101BCANA#U0
- Part No.:
- R5F101BCANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F101BCANA#U0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,462
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Product details
Overview
R5F101BCANA#U0 from Renesas is a 32-bit RL78/G13 microcontroller with 16 KB flash memory, 2 KB RAM, and no data flash, packaged in a 24-pin HWQFN (4 × 4 mm, 0.5-mm pitch). It operates from 1.6 V to 5.5 V, delivers 41 DMIPS at 32 MHz, and supports ultra-low-power modes including STOP (0.57 μA) and HALT, targeting battery-powered sensor nodes and portable industrial controls.
For engineers reviewing the R5F101BCANA#U0 datasheet, R5F101BCANA#U0 pinout, R5F101BCANA#U0 application, or R5F101BCANA#U0 equivalent, key selection criteria include its 24-pin HWQFN footprint, absence of on-chip data flash, -40°C to +85°C industrial temperature grade (D), and integrated 10-bit ADC with up to 26 channels - critical for analog-sensing edge devices requiring minimal BOM count and low active/idle power.
Technical Context
The R5F101BCANA#U0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory map spans 1 MB address space, with dedicated SFR regions enabling efficient peripheral control via bit-manipulation instructions.
Power management includes an on-chip POR circuit, 14-level LVD with interrupt/reset options, and three low-power modes (HALT, STOP, SNOOZE). Peripheral integration features 8–16 channels of 16-bit timer, one real-time clock with calendar/alarm, one watchdog timer, and UART/SPI/I²C interfaces scalable across device variants - all accessible without external timing components due to the ±1.0% accurate 32 MHz on-chip oscillator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 32-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for real-time control loop execution |
| Flash Memory | 16 KB code flash - sufficient for compact firmware with bootloader and safety checks |
| RAM Size | 2 KB on-chip RAM - supports stack, heap, and real-time data buffers in resource-constrained designs |
| Supply Voltage Range | 1.6 V to 5.5 V - enables direct Li-ion, 3.3 V, or 5 V rail operation without regulators |
| Low-Power STOP Current | 0.57 μA - maintains RTC and LVD functionality during extended sleep in battery systems |
| ADC Resolution & Channels | 10-bit resolution with up to 26 analog inputs - supports multi-sensor monitoring with internal 1.45 V reference |
Pinout & Package
Package: 24-pin HWQFN (4 × 4 mm, 0.5-mm pitch), moisture sensitivity level MSL3, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Main digital supply (1.6–5.5 V); decoupling required per datasheet layout guidelines |
| VSS | Ground reference | Digital ground plane connection; separate analog ground not required on this variant |
| P10/SCK00/SCL00 | Multi-function I/O | Configurable as SPI clock, I²C clock, or general-purpose I/O - enables shared bus routing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Multi-function I/O | Supports SPI input, UART receive, debug interface, or I²C data - simplifies tooling and communication |
| P20/ANI0/AVREFP | Analog input / reference | Primary ADC channel 0 input and positive reference voltage pin - used for precision analog sensing |
| P21/ANI1/AVREFM | Analog input / reference | ADC channel 1 input and negative reference pin - enables ratiometric measurements with AVREFP |
| RESET | Active-low reset input | Asynchronous reset trigger; internal pull-up ensures reliable startup without external resistor |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention current with RTC + LVD active - extends coin-cell life to >10 years in metering |
| On-chip high-accuracy oscillator | ±1.0% tolerance over -40°C to +85°C - eliminates external crystal for cost-sensitive timing-critical apps |
| Background data flash rewrite | Not applicable - R5F101xx series lacks data flash; avoids complexity of flash library RAM allocation |
| Multi-channel serial interfaces | Up to 2 UART, 2 CSI (SPI), 3 I²C channels - supports concurrent sensor comms, debug, and host interface |
| Integrated real-time clock | Calendar function (99-year range), alarm, and clock correction - enables time-stamped logging without external RTC |
Applications
| Smart Sensor Node | Industrial Remote I/O Module |
|---|---|
|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and motion data every 5 minutes for LoRaWAN transmission. IC Role / Device Role: Primary system controller managing ADC sampling, data preprocessing, low-power scheduling, and UART-to-LoRa bridge. Use Value: 0.57 μA STOP mode and integrated RTC enable precise wake-up intervals and decade-scale battery life without external timing components. |
Use Scenario: DIN-rail mounted remote I/O unit converting 4–20 mA analog inputs to Modbus RTU over RS-485. IC Role / Device Role: Central MCU handling analog front-end digitization, protocol stack execution, and isolated serial communication. Use Value: 26-channel 10-bit ADC with internal reference and 16 KB flash support full Modbus register mapping and calibration storage. |
| Portable Medical Monitor | Home Appliance Control Board |
|
Use Scenario: Handheld pulse oximeter acquiring PPG signals, computing SpO₂, and displaying results on OLED via SPI. IC Role / Device Role: Signal acquisition and processing engine with analog front-end control, digital filtering, and display interface driver. Use Value: 32 MHz operation and 41 DMIPS provide headroom for real-time FIR filtering and LED current modulation without external DSP. |
Use Scenario: Washing machine main control board managing motor drive, water valve sequencing, and user interface feedback. IC Role / Device Role: System supervisor coordinating relay control, keypad scanning, buzzer output, and fault detection logic. Use Value: On-chip key interrupt, clock output/buzzer controller, and N-ch open-drain I/O simplify discrete component count and PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101BCANA#V0 | Same silicon, LQFP-24 package (7 × 7 mm, 0.5-mm pitch) instead of HWQFN | Preferred where manual soldering, rework, or thermal pad accessibility is required | Select #V0 for prototyping or low-volume production needing easier inspection and repair |
| R5F100BCANA#U0 | Identical package and pinout but includes 4 KB data flash memory | Suitable when field firmware updates or parameter storage require non-volatile data retention | Choose #U0 only if data flash is unnecessary - reduces cost and avoids flash library integration overhead |
Compared with R5F101BCANA#U0, the #V0 variant trades miniaturization for assembly flexibility, while R5F100BCANA#U0 adds data flash at higher cost and firmware complexity - making R5F101BCANA#U0 optimal for fixed-function, cost-sensitive, space-constrained deployments.
Availability
R5F101BCANA#U0 is available at Aetrix Electronics and suitable for smart sensor nodes, industrial remote I/O modules, and portable medical monitors requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F101BCANA#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, and power management solutions for automotive, industrial, and IoT markets.
The RL78/G13 product line delivers true low-power performance (66 μA/MHz active, 0.57 μA STOP) for general-purpose embedded applications, emphasizing energy efficiency, integration, and ease of use in cost-sensitive industrial and consumer systems.
FAQ
What is the operating temperature range for the R5F101BCANA#U0?
The R5F101BCANA#U0 is rated for industrial operation from -40°C to +85°C (D-grade), validated across its full voltage range (1.6 V to 5.5 V) and functional specifications - making it suitable for factory automation, outdoor sensors, and HVAC controls without derating.
Does the R5F101BCANA#U0 include data flash memory?
No, the R5F101BCANA#U0 does not include data flash memory. Per Renesas part numbering convention, the "101" prefix explicitly denotes devices without data flash - unlike "100" variants (e.g., R5F100BCANA#U0) which integrate 4 KB of data flash for parameter storage or firmware updates.
Which development tools support the R5F101BCANA#U0?
The R5F101BCANA#U0 is fully supported by Renesas E2 studio IDE, CS+ (formerly CubeSuite+), and the Renesas Flash Programmer. Hardware debugging uses the on-chip FINE interface via standard JTAG/SWD adapters like the E2 Lite emulator - no external debug probe license required.
Can the R5F101BCANA#U0 operate without an external crystal?
Yes, the R5F101BCANA#U0 integrates a high-accuracy on-chip oscillator (±1.0% over -40°C to +85°C) configurable from 1 MHz to 32 MHz. This eliminates the need for external crystals or resonators in most applications, reducing BOM cost and PCB area.
How many ADC channels are available on the R5F101BCANA#U0?
The R5F101BCANA#U0 supports up to 26 analog input channels (ANI0–ANI25) with 10-bit resolution and internal 1.45 V reference voltage. Channel count is physically limited by package pin count - the 24-pin HWQFN provides 10 usable analog inputs (ANI0–ANI9) as confirmed in the pin configuration table.
R5F101BCANA#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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K 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:
R5F101BCANA#U0 FAQ
1.How can I place an order for R5F101BCANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101BCANA#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 R5F101BCANA#U0 reliable?
The price and inventory of R5F101BCANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101BCANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F101BCANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101BCANA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101BCANA#U0?
R5F101BCANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101BCANA#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 R5F101BCANA#U0?
For technical support, including R5F101BCANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101BCANA#U0 requirements.
6.How does Aetrix verify that R5F101BCANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F101BCANA#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 R5F101BCANA#U0 meets industry standards.
7.What is the process for return or replacement of R5F101BCANA#U0?
All R5F101BCANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101BCANA#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 R5F101BCANA#U0 part is unused and in its original packaging.
Return procedure for R5F101BCANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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