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Renesas R5F101BAANA#W0
- Part No.:
- R5F101BAANA#W0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F101BAANA#W0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,466
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Product details
Overview
R5F101BAANA#W0 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 across –40°C to +85°C. It delivers 41 DMIPS at 32 MHz, features ultra-low-power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), and integrates 10-bit ADC (6 channels), UART, I²C, CSI, 16-bit timers, RTC, and on-chip debug.
For engineers reviewing the R5F101BAANA#W0 datasheet, R5F101BAANA#W0 pinout, R5F101BAANA#W0 application, or R5F101BAANA#W0 equivalent, this page provides verified technical context, package mapping, real-world use cases, and validated alternative options for industrial control, sensor nodes, and battery-powered embedded systems.
Technical Context
The R5F101BAANA#W0 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 subsystem clock). Its memory map spans 1 MB address space with four register banks of eight 8-bit general-purpose registers each.
It includes a 16-bit timer array (12 channels), one 12-bit interval timer, one real-time clock with calendar/alarm/correction, and an 8/10-bit A/D converter with internal 1.45 V reference and temperature sensor-enabled only in HS mode. Serial interfaces comprise up to 2 UART/LIN, 3–10 I²C/Simplified I²C, and 2–8 CSI channels.
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 delivering 41 DMIPS - enables real-time control loop execution within sub-μs latency |
| Flash / RAM / Data Flash | 16 KB code flash, 2 KB RAM, 0 KB data flash - suitable for compact firmware with minimal nonvolatile parameter storage |
| Supply Voltage Range | 1.6 V to 5.5 V - supports direct Li-ion, 3.3 V, and 5 V system rails without external regulators |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active) - extends battery life in always-on sensing applications |
| Analog Peripherals | 10-bit ADC with 6 input channels, internal 1.45 V reference, and integrated temperature sensor - eliminates external references for thermal monitoring |
| Serial Interfaces | 2 UART/LIN, 3 I²C, 2 CSI - sufficient for sensor fusion, display interface, and host communication in space-constrained designs |
Pinout & Package
Package: 32-pin HWQFN (5 × 5 mm, 0.5 mm pitch), moisture sensitivity level (MSL) 3, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support stable operation under noisy conditions; decoupling required per datasheet layout guidelines |
| P00–P07 | General-purpose I/O with N-ch open drain, TTL input, pull-up | Configurable for interfacing with 1.8/2.5/3 V peripherals; supports key interrupt and buzzer output functions |
| P10–P17 | Multiplexed I/O (SCK00/SCL00, SI00/RxD0, SO00/TxD0, etc.) | Shared serial peripheral pins reduce pin count while enabling UART, I²C, and CSI on same port group |
| P20–P27 | Analog inputs (ANI0–ANI5), AVREFP/AVREFM | 6-channel 10-bit ADC inputs with dedicated analog reference pins - enables ratiometric measurements independent of VDD variation |
| RESET, NMIC, INT | Reset, NMI, and external interrupt inputs | Asynchronous reset and interrupt handling ensures deterministic recovery and event response in safety-critical sequences |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC and LVD active - enables multi-year battery operation in metering and environmental sensors |
| On-chip high-accuracy oscillator | +/-1.0% over 1.8–5.5 V and –20 to +85°C - eliminates external crystal for cost-sensitive timing-critical applications |
| Self-programming flash | Boot swap and flash shield window support - enables secure firmware updates without external programming hardware |
| Background data flash rewrite | BGO allows code execution during flash writes - maintains real-time responsiveness during configuration updates |
| DMA controller (2 channels) | 2-clock transfers between SFR and RAM - offloads CPU for high-throughput sensor data acquisition and communication |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - supports time-stamped logging and scheduled wake-up without host intervention |
Applications
| Smart Thermostat Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Standalone HVAC controller with local temperature/humidity sensing, display, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, PID computation, LCD driving, and UART-based BLE module interface. Use Value: Integrated RTC and low-power STOP mode enable accurate scheduling and multi-year battery life; 16 KB flash accommodates closed-loop algorithms and UI logic. |
Use Scenario: Battery-powered vibration/temperature node in predictive maintenance systems. IC Role / Device Role / Timing Role: Edge data aggregator sampling analog sensors, performing FFT preprocessing, and transmitting via LoRaWAN gateway. Use Value: 10-bit ADC with internal reference ensures measurement stability across voltage drop; HALT mode reduces average current to <10 μA during idle intervals. |
| Home Appliance Motor Control | Medical Wearable Monitor |
|
Use Scenario: Brushless DC motor driver in cordless power tools with speed feedback and thermal protection. IC Role / Device Role / Timing Role: Real-time motor commutation controller using PWM outputs, hall sensor inputs, and overtemperature shutdown via LVD. Use Value: 16-bit timers with dead-time insertion and 32 MHz core enable precise 20 kHz PWM generation; 1.6 V min supply supports operation down to single-cell Li-ion voltage sag. |
Use Scenario: Portable pulse oximeter with optical sensing, signal conditioning, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Signal processor acquiring photodiode data via ADC, applying digital filtering, and managing low-power BLE advertising cycles. Use Value: On-chip temperature sensor calibrates LED drive current drift; STOP mode with RTC wake-up achieves <5 μA average current during sleep between measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100BAANA#W0 | Includes 4 KB data flash; otherwise identical pinout, package, and peripheral set | Required when nonvolatile parameter storage (e.g., calibration data, device ID) must survive power loss | Select if firmware requires field-updatable configuration without external EEPROM |
| RL78/G14 R5F104BAANA#W0 | Same package and pinout; adds 16 KB data flash, enhanced DMA (4 ch), and higher max frequency (48 MHz) | Suitable for applications needing larger data logging buffers or faster signal processing throughput | Choose when future scalability in data retention or compute performance is prioritized over BOM cost |
Compared with R5F101BAANA#W0, R5F100BAANA#W0 adds essential data flash for configuration persistence, while R5F104BAANA#W0 extends capabilities with higher clock rate and expanded DMA-both retain full software compatibility and mechanical fit.
Availability
R5F101BAANA#W0 is available at Aetrix Electronics and suitable for industrial automation, smart home devices, and portable medical equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for R5F101BAANA#W0 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-designed to replace legacy 8-bit MCUs while delivering 16-bit performance with minimal power and footprint overhead.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F101BAANA#W0?
The R5F101BAANA#W0 operates at up to 32 MHz and delivers 41 DMIPS (Dhrystone MIPS) under standard test conditions. This performance level supports real-time control tasks such as motor commutation, sensor fusion, and protocol stack handling without external acceleration. The RL78 core achieves this through its optimized 3-stage pipeline and efficient instruction set, making the R5F101BAANA#W0 suitable for applications where deterministic timing and low latency are critical.
Does the R5F101BAANA#W0 include data flash memory, and how does that affect firmware design?
No, the R5F101BAANA#W0 contains 16 KB of code flash but zero data flash memory. This means parameters requiring nonvolatile storage-such as calibration coefficients, device IDs, or user settings-must be managed externally (e.g., via I²C EEPROM) or stored in reserved code flash sectors with wear-leveling software. In contrast, the pin-compatible R5F100BAANA#W0 includes 4 KB of dedicated data flash, enabling seamless in-field updates without additional components. Firmware for R5F101BAANA#W0 should avoid self-programming of code flash for runtime data.
What package type and pin count does the R5F101BAANA#W0 use, and what are its thermal characteristics?
The R5F101BAANA#W0 uses a 32-pin HWQFN package measuring 5 mm × 5 mm with 0.5 mm pitch and exposed thermal pad. Its rated operating ambient temperature range is –40°C to +85°C (industrial grade A), and it supports reflow soldering per JEDEC J-STD-020. The thermal resistance (θJA) is 40°C/W typical, enabling reliable operation in enclosed enclosures without forced airflow when power dissipation remains below 150 mW. This package balances board space efficiency with manufacturability in high-volume SMT lines.
How many analog input channels and what ADC resolution does the R5F101BAANA#W0 support?
The R5F101BAANA#W0 integrates a 10-bit successive-approximation ADC with six analog input channels (ANI0–ANI5), plus dedicated AVREFP and AVREFM pins for precision ratiometric measurements. The ADC supports internal 1.45 V reference and on-die temperature sensing-but the latter is only functional in HS (high-speed main) mode. Conversion time is programmable down to 1.5 μs per sample, and results can be transferred directly to RAM via DMA, reducing CPU load during continuous acquisition scenarios like sensor monitoring.
Which low-power modes are supported by the R5F101BAANA#W0, and what is the lowest achievable current draw?
The R5F101BAANA#W0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) active, it draws just 0.57 μA at 3.0 V and 25°C-enabling multi-year battery life in intermittent-sensing applications. HALT mode consumes 66 μA/MHz, scaling linearly with active clock frequency, while SNOOZE allows selected peripherals (e.g., UART, ADC) to operate autonomously during CPU sleep. All modes retain RAM content and allow wake-up via external interrupt, RTC alarm, or LVD event.
R5F101BAANA#W0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-WFQFN Exposed Pad
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- 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:
- 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#W0 FAQ
1.How can I place an order for R5F101BAANA#W0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101BAANA#W0 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#W0 reliable?
The price and inventory of R5F101BAANA#W0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101BAANA#W0 is usually 5 days.
3.What payment methods are accepted for R5F101BAANA#W0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101BAANA#W0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101BAANA#W0?
R5F101BAANA#W0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101BAANA#W0 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#W0?
For technical support, including R5F101BAANA#W0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101BAANA#W0 requirements.
6.How does Aetrix verify that R5F101BAANA#W0 is sourced from the original manufacturer or authorized distributors?
All R5F101BAANA#W0 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#W0 meets industry standards.
7.What is the process for return or replacement of R5F101BAANA#W0?
All R5F101BAANA#W0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101BAANA#W0, 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#W0 part is unused and in its original packaging.
Return procedure for R5F101BAANA#W0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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