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Renesas R5F100BFGNA#20
- Part No.:
- R5F100BFGNA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F100BFGNA#20.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:945
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Product details
Overview
R5F100BFGNA#20 from Renesas is a 32-pin RL78/G13 16-bit microcontroller with 128 KB flash, 8 KB data flash, and 12 KB RAM, operating at up to 32 MHz (41 DMIPS), featuring ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode), integrated 10-bit ADC (26 channels), real-time clock, and multiple serial interfaces (UART, I²C, CSI). It targets battery-powered industrial sensors and low-power HMI control units.
For engineers reviewing the R5F100BFGNA#20 datasheet, R5F100BFGNA#20 pinout, R5F100BFGNA#20 application, or R5F100BFGNA#20 equivalent, key selection considerations include its HWQFN-32 package, -40°C to +105°C industrial temperature grade (G suffix), on-chip debug support, self-programmable flash with boot swap, and background data flash rewrite capability.
Technical Context
The R5F100BFGNA#20 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 RTC with alarm and correction, and watchdog timer powered by dedicated low-speed oscillator.
Power management includes HALT, STOP, and SNOOZE modes, on-chip POR and 14-level LVD, and DMA controller with 4 channels enabling 2-clock transfers between SFR and RAM. The device supports background operation during data flash rewriting and uses internal RAM areas (e.g., F7F00H for R5F100xL variants) for flash library execution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 32 MHz (41 DMIPS), with selectable high-speed on-chip oscillator (±1.0% accuracy) |
| Memory Configuration | 128 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), 12 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and temperature sensor |
| Serial Interfaces | Up to 4 UART/LIN, 10 I²C/Simplified I²C, and 8 CSI (SPI-compatible) channels |
| Operating Temperature | -40°C to +105°C (industrial G-grade, confirmed by part number suffix 'G') |
Pinout & Package
Package: HWQFN-32 (5 × 5 mm, 0.5-mm pitch), lead-free, moisture sensitivity level 3, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 1.6–5.5 V supply pins supporting single-supply operation and noise immunity |
| P00–P07 | General-purpose I/O | 8-bit port with N-ch open-drain option, TTL input buffer, and on-chip pull-up resistors |
| P10–P17 | Multi-function I/O | Supports SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD, etc. |
| P20–P27 | Analog input / reference | ANI0–ANI7 inputs with AVREFP/AVREFM for ADC reference voltage routing |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to POR and LVD outputs |
| CLKP/CLKM | Crystal oscillator terminals | Supports external 32.768 kHz crystal for RTC or high-frequency crystals up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA current draw enables multi-year battery life in always-on sensor nodes |
| Background data flash rewrite | Enables firmware updates without halting application code execution |
| On-chip debug interface | Fully integrated with E1/E20 emulators; no external debug header required |
| Self-programming with boot swap | Supports dual-bank firmware update with atomic fail-safe rollback |
| Real-time clock with calendar | 99-year calendar, alarm, and automatic clock correction reduce host MCU overhead |
Applications
| Industrial Sensor Node | Smart Thermostat Control |
|---|---|
Use Scenario: Wireless temperature/humidity sensor node powered by coin cell or energy harvester. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-triggered wake-up, UART-to-LoRaWAN bridge, and low-power state transitions. Use Value: 0.57 μA STOP mode extends battery life beyond 5 years; integrated RTC eliminates external timing IC. | Use Scenario: Residential HVAC controller with display, keypad, and environmental sensing. IC Role / Device Role / Timing Role: Central MCU handling touch-key scanning, 10-bit ADC for thermistor readings, buzzer output, and I²C communication with display driver. Use Value: On-chip key interrupt and buzzer controller reduce BOM count; 12 KB RAM supports local UI rendering buffer. |
| Programmable Logic Controller (PLC) I/O Module | Energy Metering Subsystem |
Use Scenario: DIN-rail mounted digital I/O expansion module for small PLCs. IC Role / Device Role / Timing Role: Interface MCU translating Modbus RTU over RS-485 to local GPIO and PWM outputs. Use Value: 4 UART channels support dual-port Modbus master/slave; 26-channel ADC monitors supply rail health. | Use Scenario: Secondary microcontroller in smart electricity meter performing tamper detection and event logging. IC Role / Device Role / Timing Role: Dedicated data logger using RTC alarm to timestamp events and store them in data flash with 1M-cycle endurance. Use Value: Background data flash rewrite allows concurrent logging and communication; 8 KB data flash stores >10,000 timestamped events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101BFGNA#20 | No data flash memory (0 KB); identical core, peripherals, and package | Suitable where firmware updates occur only via external host or where EEPROM emulation is handled externally | Select when data logging or field firmware updates are not required - reduces cost and simplifies flash management |
| RL78/G14 R5F104BGGLF#30 | Enhanced RL78/G14 core; 128 KB flash, 16 KB RAM, 16 KB data flash, same 32-pin HWQFN package | Higher RAM and data flash capacity supports larger protocol stacks (e.g., MQTT over TLS) and extended data buffering | Choose for next-generation designs requiring more memory headroom while retaining pin compatibility and toolchain continuity |
Compared with R5F100BFGNA#20, R5F101BFGNA#20 removes data flash but retains full functional equivalence for program storage and peripheral control, whereas RL78/G14 R5F104BGGLF#30 adds 4 KB RAM and 8 KB data flash - enabling deeper event queues and cryptographic key storage without external components.
Availability
R5F100BFGNA#20 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, PLC I/O modules, and energy metering subsystems requiring stable component supply across extended product lifecycles.
Supply support for R5F100BFGNA#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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G13 family is designed for ultra-low-power general-purpose embedded control, targeting cost-sensitive industrial and consumer devices requiring long battery life, robust peripheral integration, and seamless toolchain support.
FAQ
What is the operating temperature range of the R5F100BFGNA#20?
The R5F100BFGNA#20 is rated for industrial operation from -40°C to +105°C, confirmed by the 'G' suffix in its part number per Renesas RL78/G13 documentation. This rating applies across all specified voltage ranges (1.6–5.5 V) and functional modes including STOP and SNOOZE, making it suitable for harsh environments such as factory automation and outdoor metering equipment.
Does the R5F100BFGNA#20 include data flash memory?
Yes, the R5F100BFGNA#20 includes 8 KB of on-chip data flash memory, verified in the RL78/G13 datasheet (R01DS0131EJ0380, Page 2). This memory supports background operation (BGO), 1,000,000 write cycles (typical), and rewrites at VDD = 1.8–5.5 V - enabling reliable non-volatile parameter storage and firmware update staging without halting application execution.
What package type does the R5F100BFGNA#20 use?
The R5F100BFGNA#20 uses a 32-pin HWQFN package (5 × 5 mm, 0.5-mm pitch), identified by the 'NA' suffix and confirmed in Table 1-1 of the RL78/G13 datasheet (Page 5). It features an exposed thermal pad, RoHS-compliant finish, and moisture sensitivity level 3 - requiring bake-before-rework per J-STD-020.
Can the R5F100BFGNA#20 operate from a single 1.8 V supply?
Yes, the R5F100BFGNA#20 supports single-supply operation from 1.6 V to 5.5 V, including 1.8 V, as specified in Section 1.1 Features of the RL78/G13 datasheet. At 1.8 V, it delivers full functionality including 10-bit ADC operation, RTC, and all serial interfaces - though maximum frequency is reduced per voltage/frequency curve (typically ≤ 8 MHz at 1.8 V).
How many ADC input channels does the R5F100BFGNA#20 support?
The R5F100BFGNA#20 supports up to 26 analog input channels (ANI0–ANI25), as documented in the RL78/G13 datasheet Section 1.1 under "A/D converter". These channels are distributed across ports P0–P2 and P14, with selectable resolution (8/10-bit), internal reference (1.45 V), and temperature sensor integration - all accessible without external components.
R5F100BFGNA#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):
- 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:
R5F100BFGNA#20 FAQ
1.How can I place an order for R5F100BFGNA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100BFGNA#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 R5F100BFGNA#20 reliable?
The price and inventory of R5F100BFGNA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100BFGNA#20 is usually 5 days.
3.What payment methods are accepted for R5F100BFGNA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100BFGNA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100BFGNA#20?
R5F100BFGNA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100BFGNA#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 R5F100BFGNA#20?
For technical support, including R5F100BFGNA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100BFGNA#20 requirements.
6.How does Aetrix verify that R5F100BFGNA#20 is sourced from the original manufacturer or authorized distributors?
All R5F100BFGNA#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 R5F100BFGNA#20 meets industry standards.
7.What is the process for return or replacement of R5F100BFGNA#20?
All R5F100BFGNA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100BFGNA#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 R5F100BFGNA#20 part is unused and in its original packaging.
Return procedure for R5F100BFGNA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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