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Renesas R5F100BADNA#U0
- Part No.:
- R5F100BADNA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F100BADNA#U0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,560
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Product details
Overview
R5F100BADNA#U0 from Renesas is a 32-pin HWQFN-packaged 16-bit RL78/G13 microcontroller with 32 KB flash, 2 KB RAM, and 4 KB data flash, operating from 1.6 V to 5.5 V across –40°C to +85°C industrial temperature range. It delivers 41 DMIPS at 32 MHz, integrates RTC, 10-bit ADC (12 channels), UART/SPI/I²C interfaces, and ultra-low-power HALT/STOP/SNOOZE modes for battery-powered sensor nodes and industrial control units.
For engineers reviewing the R5F100BADNA#U0 datasheet, R5F100BADNA#U0 pinout, R5F100BADNA#U0 application, or R5F100BADNA#U0 equivalent, key selection criteria include its 32-pin HWQFN (5 × 5 mm, 0.5-mm pitch) footprint, integrated data flash with background operation, real-time clock with calendar/alarm, and support for LIN-bus via UART - all critical for space-constrained, low-power embedded designs requiring firmware updates and time-stamped event logging.
Technical Context
The R5F100BADNA#U0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory subsystem includes 32 KB code flash (1 KB block size), 4 KB data flash with 1M rewrite cycles, and 2 KB on-chip RAM - enabling secure self-programming with boot swap and flash shield window functions.
Peripherals include eight 16-bit timers, one 12-bit interval timer, one real-time clock with calendar and alarm, one watchdog timer, 10-bit ADC with 12 input channels and internal reference voltage, and serial interfaces: up to four UART/LIN channels, up to eight CSI (SPI-compatible) channels, and up to ten I²C/Simplified I²C channels - all configurable under single-voltage 1.6–5.5 V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low interrupt latency in real-time control loops. |
| Max Operating Frequency | 32 MHz; delivers 41 DMIPS performance while maintaining 66 μA/MHz active current for energy-sensitive applications. |
| Memory Configuration | 32 KB code flash + 4 KB data flash + 2 KB RAM; supports background data flash rewriting during program execution for seamless firmware updates. |
| ADC Resolution & Channels | 10-bit resolution with 12 analog inputs and internal 1.45 V reference; eliminates need for external reference in precision sensor signal conditioning. |
| Real-Time Clock | Calendar function (99-year range), alarm, and clock correction; enables accurate timestamping and scheduled wake-up without external RTC IC. |
| Low-Power Modes | HALT (0.57 μA), STOP, and SNOOZE modes; allows sub-1 μA system sleep with RTC/LVD active for multi-year battery life in IoT endpoints. |
| Operating Voltage & Temp | 1.6 V to 5.5 V supply; –40°C to +85°C industrial grade; supports direct interface with 1.8/2.5/3.0 V peripherals without level shifters. |
Pinout & Package
Package: HWQFN-32 (5 × 5 mm, 0.5-mm pitch), wettable flank, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains enable independent noise filtering; VDD supports 1.6–5.5 V operation with internal POR and LVD. |
| 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 to 1.8/2.5/3.0 V devices. |
| P10–P17 | Multiplexed peripheral I/O | Supports SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD, etc.; enables hardware UART, SPI, and I²C sharing on same pins. |
| P20–P27 | Analog input / reference | ANI0–ANI7 with AVREFP/AVREFM; connects directly to 10-bit ADC and internal temperature sensor (enabled only in HS mode). |
| RESET | Active-low reset input | Accepts external reset pulse; internally tied to on-chip POR and LVD for robust power-on and brown-out recovery. |
| CLKP/CLKM | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC accuracy; also accepts external clock source up to 20 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT mode | 0.57 μA typical current draw with RTC and LVD active - extends battery life in always-on monitoring systems. |
| Data flash background operation (BGO) | Allows full CPU execution from program memory while rewriting data flash - enables zero-downtime field firmware updates. |
| On-chip debug interface | Fully integrated with E1/E20 emulators; eliminates need for external debug headers and simplifies production programming. |
| LIN-bus compatible UART | Hardware UART with LIN break detection and sync field generation - reduces software overhead in automotive body electronics. |
| Internal temperature sensor | Calibrated sensor with ±2°C accuracy over –40°C to +85°C; provides thermal monitoring without external components. |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and occupancy data every 10 seconds for cloud transmission. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based scheduling, low-power state transitions, and UART-to-Bluetooth bridge communication. Use Value: 0.57 μA HALT mode with RTC active enables >5-year coin-cell operation; integrated data flash stores calibration coefficients and event logs without external EEPROM. |
Use Scenario: Residential HVAC controller with local display, push-button UI, and wireless connectivity for remote setpoint adjustment. IC Role / Device Role / Timing Role: Central MCU handling button debouncing, display refresh, PID loop execution, and scheduled heating/cooling cycles via RTC alarm. Use Value: 12-channel 10-bit ADC reads thermistor and ambient sensors directly; on-chip BCD correction simplifies decimal temperature display formatting. |
| Programmable Logic Relay | Industrial Motor Monitor |
Use Scenario: DIN-rail mounted relay module executing user-defined logic (AND/OR/timers) to control pumps, valves, and alarms in water treatment systems. IC Role / Device Role / Timing Role: Real-time programmable controller with deterministic interrupt response, GPIO expansion, and nonvolatile logic configuration storage. Use Value: 32 KB flash holds ladder logic interpreter and user programs; data flash retains runtime counters and fault history across power cycles. |
Use Scenario: Compact motor protection unit measuring current, voltage, and temperature to detect overload, phase loss, and overheating in 3-phase AC motors. IC Role / Device Role / Timing Role: Signal acquisition and protection decision engine using ADC, timers, and watchdog for fail-safe shutdown within 10 ms. Use Value: 41 DMIPS at 32 MHz ensures fast RMS calculation and trip logic; 16-bit timer channels support precise PWM-based current sampling synchronization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100BCDNA#U0 | Same package and pinout; 48 KB flash, 4 KB RAM, 4 KB data flash - higher memory capacity for larger firmware or data buffers. | Better suited for applications requiring extended protocol stacks (e.g., Modbus RTU + OTA update handler) or larger GUI assets. | Select when firmware size exceeds 32 KB or additional RAM is needed for complex state machines or buffering. |
| R5F101BADNA#U0 | Identical package, pinout, and memory map; lacks data flash (0 KB) - reduces cost and simplifies flash management but removes background rewrite capability. | Ideal for fixed-function controllers where field updates are handled externally or not required, such as simple appliance timers. | Choose when data retention requirements are met by external EEPROM or when cost sensitivity outweighs in-field update flexibility. |
Compared with R5F100BADNA#U0, R5F100BCDNA#U0 offers scalable memory headroom for evolving firmware, while R5F101BADNA#U0 trades data flash functionality for lower BOM cost and simplified qualification - making the original part optimal for balanced cost, feature, and upgradeability in mid-tier industrial edge nodes.
Availability
R5F100BADNA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, programmable logic relays, and motor monitoring systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for R5F100BADNA#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 targets cost-sensitive, ultra-low-power general-purpose embedded applications - delivering optimized balance of performance, integration, and energy efficiency for battery-operated and mains-powered industrial controls.
FAQ
What is the maximum operating frequency and associated power consumption of the R5F100BADNA#U0?
The R5F100BADNA#U0 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. In HALT mode with only RTC and LVD enabled, it draws just 0.57 μA - verified per R01DS0131EJ0380 Rev.3.80 datasheet Section 1.1.
Does the R5F100BADNA#U0 support LIN bus communication, and how is it implemented?
Yes, the R5F100BADNA#U0 supports LIN bus communication through its UART peripheral, which includes dedicated LIN break detection, sync field generation, and identifier verification logic. This hardware-assisted LIN capability is confirmed in the "Serial interface" section of the R01DS0131EJ0380 datasheet and requires no bit-banging or external transceiver for basic node functionality.
What are the data flash endurance and voltage requirements for rewriting the R5F100BADNA#U0?
The R5F100BADNA#U0 features 4 KB of data flash rated for 1,000,000 write/erase cycles (typical) with operation supported across the full VDD range of 1.8 V to 5.5 V. Background operation (BGO) allows concurrent code execution during rewrites, and the flash library reserves RAM starting at address FEF00H - details specified in Section 1.1 and memory mapping tables of R01DS0131EJ0380.
Can the R5F100BADNA#U0 operate from a 1.8 V supply, and what peripherals remain functional?
Yes, the R5F100BADNA#U0 supports 1.6 V to 5.5 V operation, including stable 1.8 V supply. At 1.8 V, all core functions - CPU, 32 KB flash, 2 KB RAM, 10-bit ADC (with internal 1.45 V reference), RTC, timers, and UART/SPI/I²C - remain fully operational per datasheet Absolute Maximum Ratings and DC Characteristics tables.
What package type and pin count does the R5F100BADNA#U0 use, and is it RoHS compliant?
The R5F100BADNA#U0 uses a 32-pin HWQFN package (5 × 5 mm, 0.5-mm pitch) with wettable flanks, designated by the "NA" suffix in the part number and confirmed in Table 1-1 of R01DS0131EJ0380. It is RoHS-compliant, lead-free, and supplied in tray packaging (#U0), meeting JEDEC standard MS-012AC for automated assembly.
R5F100BADNA#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:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- 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:
R5F100BADNA#U0 FAQ
1.How can I place an order for R5F100BADNA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100BADNA#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 R5F100BADNA#U0 reliable?
The price and inventory of R5F100BADNA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100BADNA#U0 is usually 5 days.
3.What payment methods are accepted for R5F100BADNA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100BADNA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100BADNA#U0?
R5F100BADNA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100BADNA#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 R5F100BADNA#U0?
For technical support, including R5F100BADNA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100BADNA#U0 requirements.
6.How does Aetrix verify that R5F100BADNA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F100BADNA#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 R5F100BADNA#U0 meets industry standards.
7.What is the process for return or replacement of R5F100BADNA#U0?
All R5F100BADNA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100BADNA#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 R5F100BADNA#U0 part is unused and in its original packaging.
Return procedure for R5F100BADNA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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