Renesas R5F100BAGNA#20
- Part No.:
- R5F100BAGNA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F100BAGNA#20.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32HWQFN
- Quantity:
- Payment:

- Shipping:

Inventory:545
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Product details
Overview
R5F100BAGNA#20 from Renesas is a 32-pin, 16-bit RL78/G13 microcontroller with 128 KB flash memory, 8 KB data flash, and 12 KB RAM, operating from 1.6 V to 5.5 V. It delivers 41 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.57 μA in RTC+LVD mode), and integrates 16-bit timers, 10-bit ADC (26 channels), UART/SPI/I²C interfaces, and real-time clock - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F100BAGNA#20 datasheet, R5F100BAGNA#20 pinout, R5F100BAGNA#20 application, or R5F100BAGNA#20 equivalent, key selection criteria include its HWQFN-32 package with 0.5-mm pitch, -40°C to +105°C industrial temperature grade (G suffix), integrated data flash with 1M-cycle endurance, and support for SNOOZE mode for low-power sensor wake-up sequencing.
Technical Context
The R5F100BAGNA#20 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling configurable instruction execution time from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory subsystem includes 128 KB code flash (1 KB block size), 8 KB background-operable data flash, and 12 KB on-chip RAM - all supporting self-programming with boot swap and flash shield window functions.
Peripherals are tightly coupled to low-power operation: the 10-bit ADC supports up to 26 analog inputs with internal 1.45 V reference and temperature sensor; serial interfaces include up to 8 CSI channels, 4 UART/LIN channels, and 10 I²C channels; and the real-time clock provides calendar functionality (99-year range), alarm, and clock correction - all functional in STOP and SNOOZE modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V peripherals without level shifters |
| Flash Memory | 128 KB code flash + 8 KB data flash - supports background rewriting and 1,000,000 write cycles (typ.) |
| Performance | 41 DMIPS at 32 MHz - sufficient for real-time motor control loops and protocol stacks (e.g., Modbus RTU) |
| Low-Power Modes | HALT (0.23 μA), STOP (0.57 μA with RTC+LVD), SNOOZE - enables multi-year battery life in wireless sensor nodes |
| Analog Peripherals | 10-bit ADC with 26 channels, internal 1.45 V reference, and integrated temperature sensor - eliminates external references for thermal monitoring |
| Package & Temp | HWQFN-32 (5 × 5 mm, 0.5 mm pitch), industrial grade (-40°C to +105°C) |
Pinout & Package
Package: HWQFN-32 (5 × 5 mm, 0.5 mm pitch), exposed thermal pad, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; thermal pad improves heat dissipation in compact layouts |
| P00–P07 | General-purpose I/O port | Configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; supports different-potential interface (1.8/2.5/3 V) |
| P10–P17 | Multi-function port | Supports SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD - enables dual-role debug/communication pins |
| P20–P27 | Analog input port | ANI0–ANI7 with AVREFP/AVREFM - dedicated analog reference pins reduce noise coupling in precision sensing |
| RESET | Active-low reset input | Accepts external reset; internally tied to on-chip POR and LVD circuits - eliminates need for external supervisor IC |
| CLKP/CLKN | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC accuracy; internal high-speed oscillator selectable from 1–32 MHz ±1.0% |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables sub-μA system sleep with fast wake-up (< 4 μs from HALT), critical for energy-harvesting IoT nodes |
| On-chip data flash with BGO | Allows firmware updates or logging while executing application code - no interrupt latency penalty during flash writes |
| Integrated RTC with calendar & alarm | Provides timestamped sensor data without external RTC chip; alarm function triggers wake-up from STOP mode |
| 10-bit ADC with internal reference & temp sensor | Reduces BOM cost and PCB area by eliminating external voltage reference and thermal diode components |
| Multiple serial interfaces (CSI/UART/I²C) | Supports concurrent communication with displays (I²C), modems (UART/LIN), and sensors (SPI-compatible CSI) |
| Self-programming with boot swap | Enables safe over-the-air (OTA) firmware updates with rollback capability - essential for field-deployed industrial devices |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Residential electricity meter with pulse counting, tamper detection, and HAN communication via PLC or RF. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, real-time tariff calculation, secure data logging, and periodic RF transmission. Use Value: Integrated 10-bit ADC with 26 channels captures multiple sensor inputs (voltage, current, temperature); data flash stores billing history with 1M-cycle endurance. |
Use Scenario: Wireless vibration/temperature node on rotating machinery, powered by energy harvesting. IC Role / Device Role / Timing Role: Low-power acquisition engine that wakes on timer/alarm, samples analog sensors, processes FFT, and transmits via BLE. Use Value: 0.57 μA STOP mode with RTC keeps time between measurements; SNOOZE mode allows ADC-triggered wake-up without CPU overhead. |
| Home Appliance Control | Building Automation Controller |
|
Use Scenario: Washing machine main board requiring motor control, user interface, and safety monitoring. IC Role / Device Role / Timing Role: System-on-chip handling PWM generation, touch panel scanning, EEPROM emulation, and fault diagnostics. Use Value: 16-bit timer channels support precise motor phase timing; on-chip BCD correction simplifies display driver logic for 7-segment UI. |
Use Scenario: HVAC zone controller interfacing with thermostats, dampers, and CO₂ sensors over RS-485 and I²C. IC Role / Device Role / Timing Role: Protocol gateway translating Modbus RTU to local I²C sensor reads and actuator commands. Use Value: Four UART channels enable simultaneous RS-485 master/slave and debug ports; LIN support adds automotive-grade diagnostics capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100BGANA#20 | Same 32-pin HWQFN package and 128 KB flash, but with only 4 KB data flash and 8 KB RAM | Suitable for simpler control tasks without extensive data logging or OTA update requirements | Select when BOM cost reduction is prioritized over data retention depth and runtime memory headroom |
| R5F101BAGNA#20 | Identical pinout and package, but lacks data flash (0 KB) and has reduced peripheral set (no RTC, fewer timers/ADC channels) | Targeted at cost-sensitive, non-calendar-aware applications like basic LED drivers or fan controllers | Choose only if RTC, data flash, and full peripheral complement are unnecessary - not a drop-in replacement |
Compared with R5F100BGANA#20, the R5F100BAGNA#20 provides 2× more RAM and double the data flash endurance-critical storage; versus R5F101BAGNA#20, it adds calendar RTC, 100% more data flash, and full peripheral feature set - making it the only option for time-stamped logging and robust field firmware updates.
Availability
R5F100BAGNA#20 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering endpoints, and building automation controllers requiring stable component supply across extended product lifecycles.
Supply support for R5F100BAGNA#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 industrial, automotive, and infrastructure markets.
The RL78/G13 family is designed for ultra-low-power general-purpose embedded control - balancing performance, integration, and energy efficiency in cost-sensitive industrial and consumer applications.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100BAGNA#20?
The R5F100BAGNA#20 operates at up to 32 MHz using its internal high-speed oscillator (±1.0% accuracy), delivering 41 DMIPS. This performance level supports real-time control algorithms, communication stack processing (e.g., Modbus, LIN), and sensor fusion - verified under full industrial temperature range (-40°C to +105°C) with 1.6–5.5 V supply.
Does the R5F100BAGNA#20 include an integrated real-time clock (RTC), and what calendar functionality does it support?
Yes, the R5F100BAGNA#20 includes a dedicated RTC module with full calendar support covering years 2000–2099, alarm interrupt capability, and automatic clock correction. It remains operational in STOP mode with only RTC and LVD enabled, consuming just 0.57 μA - enabling precise timekeeping in battery-backed applications without external RTC chips.
How much data flash is available on the R5F100BAGNA#20, and what are its key reliability specifications?
The R5F100BAGNA#20 integrates 8 KB of 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 program execution from code flash while rewriting data flash - essential for reliable firmware updates and event logging in mission-critical systems.
What package type and thermal characteristics does the R5F100BAGNA#20 use?
The R5F100BAGNA#20 uses a 32-pin HWQFN package (5 × 5 mm, 0.5 mm pitch) with an exposed thermal pad. Its industrial temperature rating is -40°C to +105°C (G-grade), and the package supports reflow soldering per JEDEC J-STD-020. Thermal resistance (θJA) is 40°C/W, enabling reliable operation in enclosed industrial enclosures without forced airflow.
Can the R5F100BAGNA#20 operate from a single 1.8 V supply, and what I/O voltage compatibility does it offer?
Yes, the R5F100BAGNA#20 operates from 1.6 V to 5.5 V, fully supporting 1.8 V nominal supply. Its I/O ports support different-potential interface - meaning GPIOs can safely interface with 1.8 V, 2.5 V, or 3 V external devices without level shifters. N-ch open-drain pins tolerate up to 6 V, enabling direct connection to higher-voltage peripherals.
R5F100BAGNA#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:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100BAGNA#20 FAQ
1.How can I place an order for R5F100BAGNA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100BAGNA#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 R5F100BAGNA#20 reliable?
The price and inventory of R5F100BAGNA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100BAGNA#20 is usually 5 days.
3.What payment methods are accepted for R5F100BAGNA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100BAGNA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100BAGNA#20?
R5F100BAGNA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100BAGNA#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 R5F100BAGNA#20?
For technical support, including R5F100BAGNA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100BAGNA#20 requirements.
6.How does Aetrix verify that R5F100BAGNA#20 is sourced from the original manufacturer or authorized distributors?
All R5F100BAGNA#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 R5F100BAGNA#20 meets industry standards.
7.What is the process for return or replacement of R5F100BAGNA#20?
All R5F100BAGNA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100BAGNA#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 R5F100BAGNA#20 part is unused and in its original packaging.
Return procedure for R5F100BAGNA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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