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Renesas R5F100BFANA#20
- Part No.:
- R5F100BFANA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F100BFANA#20.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,935
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Product details
Overview
R5F100BFANA#20 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. It delivers 41 DMIPS at 32 MHz, features ultra-low-power modes (0.57 μA in RTC+LVD mode), integrated 10-bit ADC (26 channels), real-time clock, and UART/I²C/CSI interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F100BFANA#20 datasheet, R5F100BFANA#20 pinout, R5F100BFANA#20 application, or R5F100BFANA#20 equivalent, key selection criteria include its 32-pin HWQFN-0.5mm package, 64 KB code flash with self-programming, 10-bit ADC resolution across 26 analog inputs, RTC calendar support, and -40°C to +85°C industrial temperature grade (A-grade).
Technical Context
The R5F100BFANA#20 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory subsystem includes 64 KB on-chip flash with 1 KB erase blocks, 4 KB data flash with background operation (BGO), and 4 KB RAM - enabling secure firmware updates and concurrent program execution during data logging.
Peripheral integration includes eight 16-bit timers, one 12-bit interval timer, one real-time clock with calendar/alarm/correction functions, one watchdog timer, and serial interfaces: up to four UART/LIN channels, up to ten I²C/Simplified I²C channels, and up to eight CSI (SPI-compatible) channels - all configurable via dedicated SFRs and DMA support for low-CPU-overhead data movement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline; enables deterministic timing control and low-power interrupt latency. |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS performance while maintaining 66 μA/MHz active current efficiency. |
| Memory: Code Flash | 64 KB with 1 KB erase blocks, flash shield window, and boot swap - supports field firmware updates without external programmer. |
| Memory: Data Flash | 4 KB with background operation (BGO); allows EEPROM-like nonvolatile storage while executing application code. |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and temperature sensor - enables direct sensor interface without external signal conditioning. |
| Low-Power Modes | HALT (0.92 μA), STOP (0.57 μA with RTC+LVD), and SNOOZE - extends battery life in intermittent-sensing applications. |
| Operating Voltage | 1.6 V to 5.5 V - supports single-cell Li-ion, 3.3 V, and 5 V system rails without level-shifting. |
Pinout & Package
Package: 32-pin HWQFN (5 × 5 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant, rated for -40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Main digital supply (1.6–5.5 V); decoupling required per Renesas layout guidelines for noise immunity. |
| VSS | Ground | Digital ground reference; must be connected to PCB ground plane with low-inductance path. |
| RESET | Reset input | Active-low reset with internal pull-up; accepts external reset sources or debounced pushbutton. |
| P00–P07 | General-purpose I/O | Bi-directional ports with N-ch open-drain option, TTL input buffer, and on-chip pull-up - supports mixed-voltage interfacing (1.8/2.5/3.3 V). |
| P10–P17 | Multi-function I/O | Supports SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD, etc. - enables flexible peripheral mapping without pin remapping hardware. |
| ANI0–ANI7 | Analog inputs | Eight of 26 ADC channels; share pins with P20–P27 - allows simultaneous analog sensing and digital I/O on same port group. |
| AVREFP / AVREFM | Analog reference | Positive/negative ADC reference inputs; accept external references or use internal 1.45 V reference for ratiometric measurements. |
| XT1 / XT2 | Crystal oscillator | Connects to 32.768 kHz crystal for RTC accuracy; optional for systems using only on-chip oscillators. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Reduces system standby current to ≤0.57 μA - critical for multi-year battery life in wireless sensor nodes. |
| On-chip debug with FINE interface | Enables full-speed debugging and flash programming via single-pin SWD-style connection - eliminates need for dedicated debug header. |
| Data flash with BGO and 1M rewrite cycles | Allows logging of sensor data or configuration parameters during runtime without halting application execution. |
| Real-time clock with calendar and alarm | Provides accurate timekeeping over 99 years with automatic leap-year correction - eliminates external RTC IC in time-stamped applications. |
| Integrated LIN bus support in UART peripherals | Enables direct communication with automotive body electronics or industrial actuators without external transceiver. |
| Hardware multiplier/divider and MAC unit | Accelerates control loop math (e.g., PID, filtering) in motor control or power conversion firmware - reduces CPU load by >60% vs. software-only implementation. |
Applications
| Smart Energy Meters | Industrial Sensor Nodes |
|---|---|
|
Use Scenario: Metering electricity consumption with time-of-use billing and tamper detection. IC Role / Device Role / Timing Role: Main controller handling metrology sampling, RTC-based tariff switching, secure flash storage of usage logs, and RS-485/LIN communication. Use Value: Integrated 10-bit ADC with 26 channels and on-chip temperature sensor enable direct shunt-based current measurement and thermal derating without external components. |
Use Scenario: Wireless environmental monitoring in factory floors with humidity, temperature, and vibration sensing. IC Role / Device Role / Timing Role: Low-power host managing sensor polling, data aggregation, RTC-triggered wake-up, and BLE/Wi-Fi coexistence via UART/I²C. Use Value: 0.57 μA STOP mode with RTC active extends coin-cell battery life beyond 5 years while maintaining precise timestamping. |
| Home Appliance Control | Medical Wearables |
|
Use Scenario: Motor control and user interface in refrigerators, washing machines, and HVAC systems. IC Role / Device Role / Timing Role: Real-time motor commutation via PWM timers, touch-button scanning, buzzer output, and fault-safe shutdown logic. Use Value: On-chip BCD correction circuit simplifies display driver interface for 7-segment LED readouts - reducing BOM cost and firmware overhead. |
Use Scenario: Continuous physiological monitoring (ECG, SpO₂) in compact wearable patches. IC Role / Device Role / Timing Role: Signal acquisition front-end with ADC oversampling, digital filtering, and secure local storage before Bluetooth transmission. Use Value: 1.6 V minimum operating voltage enables direct operation from single alkaline or rechargeable LiPo cells - eliminating voltage regulation losses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101BFANA#20 | No data flash (0 KB); identical core, peripherals, and package - reduced nonvolatile storage capability. | Suitable where firmware-only storage suffices; not usable for parameter logging or field-upgradeable calibration tables. | Select when BGO-enabled data retention is unnecessary and cost reduction is prioritized over field data persistence. |
| R5F100BGANA#20 | 128 KB code flash, 8 KB data flash, 12 KB RAM - double flash and triple RAM capacity in same 32-pin HWQFN package. | Required for larger firmware images, complex UI stacks, or extended data buffering in edge-node preprocessing. | Choose when application growth headroom or future firmware expansion is mandated - same footprint, no PCB redesign needed. |
Compared with R5F100BFANA#20, R5F101BFANA#20 removes data flash functionality for cost-sensitive control-only roles, while R5F100BGANA#20 scales memory resources within identical mechanical and thermal constraints - enabling seamless migration paths without layout changes.
Availability
R5F100BFANA#20 is available at Aetrix Electronics and suitable for smart energy meters, industrial sensor nodes, home appliance controllers, and medical wearables requiring stable component supply and long-term industrial temperature support (-40°C to +85°C).
Supply support for R5F100BFANA#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 targets cost-sensitive, ultra-low-power general-purpose embedded applications - delivering optimized balance of performance, energy efficiency, and peripheral integration for battery-operated and energy-harvesting systems.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F100BFANA#20?
The R5F100BFANA#20 operates at up to 32 MHz with 41 DMIPS performance and consumes 66 μA per MHz in active mode. At full speed, typical active current is approximately 2.1 mA (32 MHz × 66 μA/MHz), verified under VDD = 3.3 V and TA = 25°C per R01DS0131EJ0380 Rev.3.80.
Does the R5F100BFANA#20 support in-system programming and secure firmware updates?
Yes, the R5F100BFANA#20 supports in-system programming via its on-chip debug interface and includes flash shield window and block erase prohibition features. These enable secure firmware updates and prevent unauthorized access to protected code regions during field deployment.
How many analog input channels does the R5F100BFANA#20 provide, and what is the ADC resolution?
The R5F100BFANA#20 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels. The ADC supports internal 1.45 V reference voltage and temperature sensor input, and operates across the full 1.6 V to 5.5 V supply range without external scaling.
What low-power modes are available on the R5F100BFANA#20, and what is the lowest achievable current draw?
The R5F100BFANA#20 offers HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it achieves 0.57 μA typical current draw at VDD = 3.3 V and TA = 25°C - enabling multi-year operation on primary lithium batteries.
Is the R5F100BFANA#20 pin-compatible with other RL78/G13 variants in the same 32-pin HWQFN package?
Yes, all RL78/G13 devices in the 32-pin HWQFN package (e.g., R5F100BAANA#20, R5F100BGANA#20, R5F101BFANA#20) share identical pinout and mechanical footprint. Functional differences (e.g., flash size, data flash presence) do not affect PCB layout compatibility.
R5F100BFANA#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:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- 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:
R5F100BFANA#20 FAQ
1.How can I place an order for R5F100BFANA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100BFANA#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 R5F100BFANA#20 reliable?
The price and inventory of R5F100BFANA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100BFANA#20 is usually 5 days.
3.What payment methods are accepted for R5F100BFANA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100BFANA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100BFANA#20?
R5F100BFANA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100BFANA#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 R5F100BFANA#20?
For technical support, including R5F100BFANA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100BFANA#20 requirements.
6.How does Aetrix verify that R5F100BFANA#20 is sourced from the original manufacturer or authorized distributors?
All R5F100BFANA#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 R5F100BFANA#20 meets industry standards.
7.What is the process for return or replacement of R5F100BFANA#20?
All R5F100BFANA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100BFANA#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 R5F100BFANA#20 part is unused and in its original packaging.
Return procedure for R5F100BFANA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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