Renesas R5F100BGANA#U0
- Part No.:
- R5F100BGANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F100BGANA#U0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 32HWQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100BGANA#U0 from Renesas is a 32-pin, 128 KB flash, 8 KB data flash, 12 KB RAM RL78/G13 16-bit microcontroller with ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD), 1.6–5.5 V supply, and integrated peripherals including 16-bit timers, 10-bit ADC (26 channels), UART, I²C, CSI, and real-time clock. It targets battery-powered industrial sensors and portable control units requiring long runtime and compact footprint.
For engineers reviewing the R5F100BGANA#U0 datasheet, R5F100BGANA#U0 pinout, R5F100BGANA#U0 application, or R5F100BGANA#U0 equivalent, key selection criteria include its VFBGA-32 package (0.4 mm pitch), -40°C to +85°C industrial-grade temperature range (A-grade), on-chip debug support, self-programmable flash with boot swap, and background data flash rewrite capability.
Technical Context
The R5F100BGANA#U0 implements the RL78 CPU core with 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). It integrates a 12-bit interval timer, calendar-based real-time clock with alarm and correction, and watchdog timer with dedicated low-speed oscillator.
Peripherals include up to 16 channels of 16-bit timer, 3–10 I²C/Simplified I²C channels, 2–4 UART/LIN channels, 2–8 CSI channels, and an 8/10-bit ADC with internal 1.45 V reference and temperature sensor - all operating across the full 1.6–5.5 V supply range and qualified for industrial ambient temperatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 128 KB code flash with 1 KB block size, security erase lock, and self-programming with boot swap |
| Data Flash | 8 KB data flash with background operation (BGO), 1M write cycles, 1.8–5.5 V programming voltage |
| RAM | 12 KB on-chip RAM, including dedicated areas for flash library use (start address FF300H) |
| ADC | 10-bit resolution, 26 analog input channels, internal 1.45 V reference, and integrated temperature sensor |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD enabled |
| Operating Voltage | 1.6 V to 5.5 V single-supply operation, compatible with 1.8 V, 2.5 V, and 3 V external interfaces |
| Temperature Range | -40°C to +85°C (A-grade industrial qualification) |
Pinout & Package
VFBGA-32 package (4.0 × 4.0 mm, 0.4 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Main digital supply (1.6–5.5 V); decoupling required per datasheet layout guidelines |
| VSS | Ground | Digital ground reference; separate analog ground not provided - shared VSS used for mixed-signal operation |
| P00–P07 | General-purpose I/O | Bi-directional ports with programmable N-ch open-drain, TTL input buffer, and pull-up resistor options |
| P10–P17 | Multi-function I/O | Support SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD, etc., enabling flexible peripheral mapping |
| P20–P27 | Analog input / reference | ANI0–ANI7 inputs with AVREFP/AVREFM pins; supports differential ADC measurements and internal reference selection |
| RESET | Reset input | Active-low reset with internal pull-up; accepts external reset signal or POR/LVD-generated assertion |
| CLKP/CLKM | Crystal oscillator input | Supports 32.768 kHz crystal for RTC; high-accuracy internal oscillator (±1.0%) eliminates need for external crystal in many applications |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC and LVD active enables multi-year battery life in metering and sensor nodes |
| Background data flash rewrite | Allows firmware updates or parameter storage without halting program execution - critical for field-upgradable devices |
| On-chip debug interface | Fully integrated with E1/E20 emulators; no external debug header required, reducing BOM and board space |
| Multi-voltage I/O capability | Direct interface to 1.8 V, 2.5 V, and 3 V logic without level shifters - simplifies mixed-voltage system design |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control and sensor fusion math |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction features enable time-stamped logging and scheduled wake-up without external RTC IC |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Battery-powered environmental monitoring unit measuring temperature, humidity, and CO₂ over 5+ years. IC Role / Device Role / Timing Role: Main system controller executing sensor polling, data aggregation, low-power scheduling, and wireless transmission timing via RTC alarm wake-up. Use Value: 0.57 μA STOP mode with RTC extends battery life; integrated 10-bit ADC and temperature sensor eliminate external components; BGO enables secure OTA parameter updates. |
Use Scenario: Residential HVAC controller with display, keypad, and relay drivers managing heating/cooling cycles based on schedule and occupancy. IC Role / Device Role / Timing Role: Central MCU handling UI responsiveness, PID loop execution, real-time scheduling, and communication with cloud gateway via UART/I²C. Use Value: 12 KB RAM supports multitasking OS layer; 128 KB flash accommodates feature-rich firmware with diagnostics; multi-voltage I/O interfaces directly with 3 V display and 5 V relay drivers. |
| Portable Medical Device | Energy Metering Module |
|
Use Scenario: Handheld pulse oximeter with OLED display, optical sensing, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Signal acquisition controller synchronizing LED drive timing, ADC sampling, and digital filtering using hardware timers and DMA. Use Value: 16-bit timers with capture/compare support precise LED pulsing; 26-channel ADC enables multi-wavelength sensing; ultra-low active current preserves battery during intermittent measurement bursts. |
Use Scenario: DIN-rail mounted electricity meter performing voltage/current sampling, energy calculation, and tamper detection. IC Role / Device Role / Timing Role: System management MCU coordinating metrology IC interface (SPI), EEPROM logging, LCD refresh, and anti-tamper GPIO monitoring. Use Value: On-chip 8 KB data flash stores calibration coefficients and usage logs with 1M write endurance; LVD interrupt enables brown-out event recording; 1.6 V min operating voltage ensures robustness during grid sags. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100CGANA#U0 | 128 KB flash, 8 KB data flash, 12 KB RAM, same VFBGA-32 package and A-grade temp range | Same pinout and peripheral set; differs only in memory configuration - no functional or layout change required | Select when identical footprint and performance are needed but alternate memory partitioning is preferred |
| R5F101BGANA#U0 | 128 KB flash, no data flash, 12 KB RAM, same package and A-grade temp range | Lacks data flash; requires external nonvolatile storage or SRAM+backup for parameter retention | Choose where data logging or field updates are unnecessary, reducing cost and simplifying firmware architecture |
Compared with R5F100BGANA#U0, R5F100CGANA#U0 offers identical functionality with different flash allocation, while R5F101BGANA#U0 removes data flash entirely - making it suitable only for fixed-parameter deployments where BGO and flash shield window features are unused.
Availability
R5F100BGANA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, portable medical devices, and energy metering modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F100BGANA#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, and industrial control applications - balancing performance, integration, and energy efficiency without external support components.
FAQ
What is the package type and pin count of the R5F100BGANA#U0?
The R5F100BGANA#U0 uses a VFBGA-32 package with 32 terminals arranged in a 4.0 × 4.0 mm body and 0.4 mm pitch. This fine-pitch ball grid array supports high-density PCB layouts and is qualified for industrial reflow profiles. The R5F100BGANA#U0 pinout matches other RL78/G13 VFBGA-32 variants such as R5F100CGANA#U0 and R5F101BGANA#U0.
Does the R5F100BGANA#U0 include data flash memory, and what is its endurance?
Yes, the R5F100BGANA#U0 integrates 8 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) at VDD = 1.8–5.5 V. It supports background operation (BGO), allowing code execution from main flash while rewriting data flash - essential for reliable firmware updates and parameter storage in the R5F100BGANA#U0.
What is the operating temperature range for the R5F100BGANA#U0?
The R5F100BGANA#U0 is specified for industrial operation from –40°C to +85°C (A-grade qualification). This range is validated per Renesas' standard industrial test flow and applies across all electrical specifications including flash programming, ADC accuracy, and real-time clock stability - confirming suitability for demanding R5F100BGANA#U0 deployments.
Can the R5F100BGANA#U0 operate without an external crystal?
Yes, the R5F100BGANA#U0 includes a high-accuracy on-chip oscillator (±1.0% over VDD = 1.8–5.5 V and TA = –20 to +85°C) selectable from 1–32 MHz. An external 32.768 kHz crystal is optional and only required if higher RTC accuracy than the internal low-speed oscillator provides is needed - the R5F100BGANA#U0 functions fully without any external timing components.
How does the R5F100BGANA#U0 support low-power design in battery applications?
The R5F100BGANA#U0 achieves ultra-low power via multiple modes: 66 μA/MHz active current, 0.57 μA STOP mode with RTC + LVD active, and configurable HALT/SNOOZE modes. Its ability to retain RAM and wake from deep sleep on peripheral events - combined with BGO and on-chip debug - makes the R5F100BGANA#U0 ideal for energy-constrained edge devices requiring multi-year operation.
R5F100BGANA#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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 12K 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:
R5F100BGANA#U0 FAQ
1.How can I place an order for R5F100BGANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100BGANA#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 R5F100BGANA#U0 reliable?
The price and inventory of R5F100BGANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100BGANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F100BGANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100BGANA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100BGANA#U0?
R5F100BGANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100BGANA#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 R5F100BGANA#U0?
For technical support, including R5F100BGANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100BGANA#U0 requirements.
6.How does Aetrix verify that R5F100BGANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F100BGANA#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 R5F100BGANA#U0 meets industry standards.
7.What is the process for return or replacement of R5F100BGANA#U0?
All R5F100BGANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100BGANA#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 R5F100BGANA#U0 part is unused and in its original packaging.
Return procedure for R5F100BGANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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