Renesas R5F101BAANA#00
- Part No.:
- R5F101BAANA#00
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F101BAANA#00.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32HWQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F101BAANA#00 from Renesas is a 32-pin HWQFN-packaged RL78/G13 16-bit microcontroller with 16 KB flash, 2 KB RAM, and no data flash memory, 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 (6 channels), and integrated real-time clock for battery-powered industrial sensor nodes.
For engineers reviewing the R5F101BAANA#00 datasheet, R5F101BAANA#00 pinout, R5F101BAANA#00 application, or R5F101BAANA#00 equivalent, key selection criteria include its 32-pin HWQFN-0.5mm package, absence of on-chip data flash, -40°C to +85°C industrial temperature grade (A-suffix), and support for LIN-capable UART, CSI, and I²C interfaces in space-constrained embedded control designs.
Technical Context
The R5F101BAANA#00 implements the RL78 CPU core with 3-stage pipeline, 1 MB address space, and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It integrates a 12-bit interval timer, calendar-based RTC with alarm/correction, and watchdog timer driven by dedicated low-speed oscillator.
Its peripheral set includes 8× 16-bit timers, 3× UART/LIN channels, up to 10× I²C/Simplified I²C interfaces, 2–8× CSI channels, and DMA controller with 2 channels supporting 2-clock transfers between SFR and RAM - all optimized for deterministic real-time response in resource-limited systems.
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 (41 DMIPS), supported by high-accuracy ±1.0% on-chip oscillator |
| Memory Configuration | 16 KB code flash, 2 KB RAM, 0 KB data flash - simplifies firmware update logic and reduces BOM cost |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE - enables multi-year battery life in metering |
| Analog Peripherals | 10-bit ADC with 6 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Communication Interfaces | 3× UART/LIN, up to 10× I²C/Simplified I²C, 2–8× CSI - supports mixed-protocol sensor fusion without external transceivers |
| Operating Voltage & Temp | 1.6 V to 5.5 V supply; -40°C to +85°C ambient (A-grade industrial qualification) |
Pinout & Package
Package: 32-pin HWQFN (5 × 5 mm, 0.5-mm pitch), moisture-sensitive level 3, RoHS-compliant, thermal pad exposed on underside for enhanced heat dissipation in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support independent analog/digital rail decoupling; VDD must be ≥1.6 V for full functionality |
| P00–P07 | General-purpose I/O with N-ch open drain option | Configurable pull-up, TTL input buffer, and 6 V-tolerant variants enable direct interfacing with 1.8/2.5/3.3 V peripherals |
| P10–P17 | Multiplexed serial interface pins (SCK00/SCL00, SI00/RxD0, etc.) | Shared CSI0/UART0/I²C0 functions allow flexible peripheral assignment without pin remapping hardware |
| P20–P27 | Analog inputs (ANI0–ANI5) and AVREFP/AVREFM | 6-channel 10-bit ADC with differential reference inputs supports precision sensor signal conditioning |
| RESET | Active-low reset input | Accepts external reset or internal POR/LVD assertion; debounced internally to prevent spurious resets |
| CLKP/CLKM | External crystal oscillator inputs | Supports 32.768 kHz crystal for RTC accuracy; optional use of internal oscillator eliminates external components |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active enables >5-year coin-cell battery life in wireless sensors |
| On-chip debug & self-programming | Integrated debug interface and flash shield window function allow secure field firmware updates without external programmers |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction eliminate need for external RTC IC in time-stamped logging applications |
| Peripheral independence | CSI, UART, and I²C share no common clock domain - permits simultaneous concurrent communication on multiple buses |
| Temperature sensor integration | On-die sensor calibrated across -40°C to +85°C enables system-level thermal monitoring without external components |
Applications
| Smart Energy Meters | Industrial Sensor Nodes |
|---|---|
|
Use Scenario: Battery-powered gas/water meters capturing flow rate, pressure, and temperature at 15-minute intervals with encrypted RF upload. IC Role / Device Role / Timing Role: Primary system controller executing metrology algorithms, managing RTC-triggered sampling, and handling AES encryption via software library. Use Value: STOP-mode current of 0.57 μA extends CR2450 battery life beyond 7 years while maintaining accurate timekeeping for billing cycles. |
Use Scenario: DIN-rail mounted vibration/temperature monitor in factory automation, reporting via RS-485 Modbus to PLC. IC Role / Device Role / Timing Role: Real-time acquisition hub aggregating analog sensor data, performing FFT preprocessing, and scheduling deterministic Modbus responses. Use Value: 41 DMIPS at 32 MHz enables on-device spectral analysis without external DSP, reducing latency and component count. |
| Home Appliance Control | Medical Diagnostic Devices |
|
Use Scenario: Washing machine main board controlling motor drive, water valves, display, and user interface with safety monitoring. IC Role / Device Role / Timing Role: Central MCU coordinating PWM motor control, touch-key scanning, buzzer feedback, and fault detection via LVD interrupt. Use Value: Integrated key interrupt and buzzer output controller eliminate discrete logic, shrinking PCB area by 12 mm². |
Use Scenario: Portable blood glucose meter requiring precise analog front-end, LCD driver, and USB HID communication. IC Role / Device Role / Timing Role: Signal processor digitizing electrochemical sensor output, applying calibration curves, and formatting USB packets. Use Value: 10-bit ADC with internal 1.45 V reference achieves ±1.2 mV absolute accuracy over temperature, meeting ISO 15197:2013 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100BAANA#00 | Same 32-pin HWQFN package and core, but includes 4 KB data flash memory | Required for applications needing EEPROM-like parameter storage (e.g., calibration tables, device IDs) | Select when non-volatile configuration storage is mandatory; adds ~$0.12 BOM cost |
| RL78/G14 R5F104BAANA#00 | Pin-compatible upgrade with 32 KB flash, 4 KB RAM, and enhanced ADC (12-bit, 12 ch) | Suitable for next-gen designs requiring larger firmware footprint or higher-resolution sensing | Choose for forward compatibility where future feature expansion is anticipated; same layout reuse possible |
Compared with R5F101BAANA#00, R5F100BAANA#00 adds data flash at identical power/performance, while R5F104BAANA#00 delivers scalable memory and ADC capability - enabling staged development from cost-optimized to feature-rich variants without PCB redesign.
Availability
R5F101BAANA#00 is available at Aetrix Electronics and suitable for smart energy meters, industrial sensor nodes, home appliance control, and portable medical diagnostics requiring stable component supply across multi-year production cycles.
Supply support for R5F101BAANA#00 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 targets cost-sensitive, ultra-low-power general-purpose embedded applications - delivering high integration and energy efficiency for battery-operated and energy-harvesting systems.
FAQ
What is the maximum operating frequency and associated performance of the R5F101BAANA#00?
The R5F101BAANA#00 operates at up to 32 MHz with a performance rating of 41 DMIPS. This is achieved using the RL78 CPU core's 3-stage pipeline and high-accuracy on-chip oscillator (±1.0% over -20°C to +85°C). Its minimum instruction execution time ranges from 0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz, supporting both high-speed processing and ultra-low-power wake-up events. The R5F101BAANA#00 maintains this performance across its full 1.6 V to 5.5 V supply range.
Does the R5F101BAANA#00 include on-chip data flash memory?
No, the R5F101BAANA#00 does not include on-chip data flash memory. As indicated by the "101" prefix in its part number per Renesas documentation, this variant provides only 16 KB of code flash and 2 KB of RAM. In contrast, "100"-series parts (e.g., R5F100BAANA#00) include 4 KB of data flash. The R5F101BAANA#00 relies on external EEPROM or FRAM if non-volatile parameter storage is required.
What package type and pin count does the R5F101BAANA#00 use?
The R5F101BAANA#00 uses a 32-pin HWQFN package (5 × 5 mm, 0.5-mm pitch), identified by the "NA" suffix in its ordering code. This thermally enhanced, lead-free package features an exposed thermal pad on the underside and complies with moisture sensitivity level 3 (MSL3). It is compatible with standard reflow profiles and supports high-density PCB layouts typical in industrial and consumer modules.
What are the key low-power modes supported by the R5F101BAANA#00?
The R5F101BAANA#00 supports HALT mode (66 μA/MHz), STOP mode (0.57 μA with RTC and LVD active), and SNOOZE mode (selective peripheral wake-up while CPU sleeps). These modes are controlled via dedicated system registers and can be entered using single-instruction writes. STOP mode retains RAM content and RTC operation, making it ideal for long-duration sleep in battery-powered applications - a key differentiator confirmed in the R01DS0131EJ0380 datasheet.
Which communication interfaces are available on the R5F101BAANA#00?
The R5F101BAANA#00 integrates three UART/LIN channels (supporting LIN 2.2 protocol), up to ten I²C/Simplified I²C interfaces, and two to eight CSI channels (Renesas' SPI-compatible serial interface). All are multiplexed onto GPIO pins and configurable via peripheral enable registers. Notably, UART0 supports TOOLRxD for on-chip debugging, and CSI0 shares pins with I²C0 - allowing flexible interface allocation without hardware changes. No CAN or Ethernet interfaces are present.
R5F101BAANA#00 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-WFQFN Exposed Pad
- 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:
- 22
- Program Memory Size:
- 16KB (16K 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:
R5F101BAANA#00 FAQ
1.How can I place an order for R5F101BAANA#00 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101BAANA#00 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 R5F101BAANA#00 reliable?
The price and inventory of R5F101BAANA#00 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101BAANA#00 is usually 5 days.
3.What payment methods are accepted for R5F101BAANA#00?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101BAANA#00 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101BAANA#00?
R5F101BAANA#00 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101BAANA#00 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 R5F101BAANA#00?
For technical support, including R5F101BAANA#00 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101BAANA#00 requirements.
6.How does Aetrix verify that R5F101BAANA#00 is sourced from the original manufacturer or authorized distributors?
All R5F101BAANA#00 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 R5F101BAANA#00 meets industry standards.
7.What is the process for return or replacement of R5F101BAANA#00?
All R5F101BAANA#00 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101BAANA#00, 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 R5F101BAANA#00 part is unused and in its original packaging.
Return procedure for R5F101BAANA#00:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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