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Renesas R5F104BFGNA#U0
- Part No.:
- R5F104BFGNA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F104BFGNA#U0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 32HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,586
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Product details
Overview
R5F104BFGNA#U0 from Renesas is a 32-pin HWQFN-packaged RL78/G14 16-bit microcontroller with 96 KB flash, 12 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40 to +105°C (industrial G-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low-power HALT/STOP/SNOOZE modes (0.60 μA RTC+LVD), and integrates UART, I²C, CSI, 16-bit timers, 10-bit ADC (20 ch), and RTC with calendar.
For engineers reviewing the R5F104BFGNA#U0 datasheet, R5F104BFGNA#U0 pinout, R5F104BFGNA#U0 application, or R5F104BFGNA#U0 equivalent, key selection criteria include industrial-temperature operation, integrated data flash with 1M rewrite cycles, background operation (BGO), and hardware event linking via ELC for deterministic real-time control in resource-constrained embedded systems.
Technical Context
The R5F104BFGNA#U0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and includes multiply/divide/accumulate instructions. Its memory subsystem comprises 96 KB code flash (1 KB blocks), 8 KB data flash with BGO, and 12 KB SRAM.
Peripheral integration centers on low-power system control: Event Link Controller (ELC) enables direct peripheral-to-peripheral triggering without CPU intervention; Data Transfer Controller (DTC) supports block/repeat transfers activated by 19–26 event sources; and dual-voltage I/O (1.8/2.5/3.0 V interface capability) simplifies mixed-supply design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz → 44 DMIPS performance for real-time control tasks |
| Flash Memory | 96 KB code flash with 1 KB erase blocks and security lock for IP protection |
| Data Flash | 8 KB with background operation (BGO) and 1,000,000 write cycles at 1.8–5.5 V |
| RAM | 12 KB on-chip SRAM for stack, variables, and firmware execution |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC + LVD enabled |
| Operating Temperature | -40 to +105°C (G-grade industrial qualification) |
| Supply Voltage | 1.6–5.5 V single supply enabling battery and wide-input applications |
Pinout & Package
Package: HWQFN-32 (5 × 5 mm, 0.5 mm pitch) with exposed die pad recommended to be connected to VSS for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; clock source for trace/debug |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; secondary trace clock |
| P10–P17 | CSI/I²C/UART/SCL/SDA/SI/SO pins | Configurable serial interfaces supporting LIN, SPI-like CSI, and I²C up to 10 channels |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM / ANO0 / ANO1 | 8-channel 10-bit ADC inputs with internal reference (1.45 V) and dual analog outputs |
| P30–P31 | INTP3 / RTC1HZ / INTP4 / PCLBUZ0 | Real-time clock interrupt output and programmable buzzer driver for HMI feedback |
| P50–P51 | RxD0/TxD0 / TOOLRxD/TOOLTxD / TRGIOA/TRGIOB | Dedicated debug UART and trace I/O for in-circuit programming and diagnostics |
| RESET | Active-low reset input | Asynchronous reset with internal POR and configurable LVD (14 levels) |
| VDD / VSS / REGC | Power / Ground / Regulator capacitor | Single-supply operation; REGC requires 0.47–1 μF capacitor to VSS for stable voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA retention with RTC and LVD active-enables multi-year battery life in metering |
| Data flash BGO | Execute code from flash while rewriting 8 KB data flash-no runtime interruption for logging or OTA updates |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 peripheral events eliminates CPU polling and ISR latency |
| Hardware DTC | Offloads memory transfers (block/repeat) triggered by peripherals-reduces CPU load by >30% in sensor acquisition |
| Dual-voltage I/O | Interface directly with 1.8 V, 2.5 V, or 3.0 V logic without level shifters-simplifies mixed-voltage PCB design |
| On-chip temperature sensor | Integrated calibrated sensor enables thermal monitoring without external components |
Applications
| Smart Energy Meters | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Electricity/water/gas meter with tamper detection, pulse counting, and secure data logging. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing secure flash writes, and driving RTC-based billing intervals. Use Value: 8 KB data flash with 1M rewrite cycles stores 10+ years of consumption logs; 0.60 μA STOP mode extends battery backup to >10 years. | Use Scenario: DIN-rail mounted digital input/output module with fieldbus communication and diagnostics. IC Role / Device Role / Timing Role: Real-time I/O scheduler using ELC-triggered GPIO/timer actions and UART/LIN for fieldbus protocol handling. Use Value: ELC eliminates CPU overhead in high-speed I/O sampling; -40 to +105°C rating ensures reliability in uncooled enclosures. |
| Home Appliance Control Panels | Medical Portable Devices |
Use Scenario: Touchless UI and motor control in refrigerators, washing machines, or HVAC systems. IC Role / Device Role / Timing Role: Coordinating capacitive touch sensing, buzzer feedback, PWM motor drives, and display updates. Use Value: Integrated PCLBUZ0 and 10-bit ADC enable direct piezo/buzzer drive and analog sensor reading-reducing BOM count by 2–3 components. | Use Scenario: Battery-powered glucose monitors or portable diagnostic tools requiring long shelf life and precise analog measurement. IC Role / Device Role / Timing Role: Signal acquisition (10-bit ADC, temp sensor), secure data storage, and low-power BLE interface coordination. Use Value: 1.6 V minimum supply and 66 μA/MHz efficiency allow operation down to near-dead battery; on-chip temp sensor calibrates ADC readings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BGANA#U0 | Same 32-pin HWQFN package, but 128 KB flash / 16 KB RAM / 8 KB data flash | Higher code/data capacity for complex protocol stacks or larger GUI assets | Select when firmware size exceeds 96 KB or additional RAM is needed for buffering |
| R5F104BEANA#U0 | Same 32-pin HWQFN, but 64 KB flash / 5.5 KB RAM / 4 KB data flash | Reduced memory and lower cost for simpler control-only functions | Select for cost-sensitive, low-complexity applications where 96 KB flash is over-provisioned |
Compared with R5F104BFGNA#U0, R5F104BGANA#U0 provides headroom for future firmware expansion and larger data buffers, while R5F104BEANA#U0 reduces bill-of-materials cost and power in minimal-feature implementations-both share identical pinout, peripheral set, and industrial temperature rating.
Availability
R5F104BFGNA#U0 is available at Aetrix Electronics and suitable for smart energy meters, industrial I/O modules, and portable medical devices requiring stable component supply across extended product lifecycles.
Supply support for R5F104BFGNA#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/G14 product line targets cost-sensitive, ultra-low-power general-purpose embedded applications-designed to replace legacy 8/16-bit MCUs with enhanced integration, security, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104BFGNA#U0?
The R5F104BFGNA#U0 operates up to 32 MHz, delivering 44 DMIPS of processing performance. This is achieved using the RL78 CPU core's 3-stage pipeline and optimized instruction set, enabling deterministic real-time response in motor control, sensor fusion, and communication protocol stacks without requiring external clock sources beyond the integrated high-speed oscillator.
Does the R5F104BFGNA#U0 support in-system programming and secure firmware updates?
Yes, the R5F104BFGNA#U0 supports full in-system programming via its on-chip debug interface and boot swap function. It includes flash shield window protection and block-level erase/write prohibition to prevent unauthorized access or corruption during field updates-critical for certified industrial and medical firmware deployments.
What analog peripherals are integrated into the R5F104BFGNA#U0?
The R5F104BFGNA#U0 integrates a 10-bit ADC with up to 20 input channels, internal 1.45 V reference voltage, and on-chip temperature sensor. It also includes an 8-bit DAC with up to two output channels (0–VDD range) and two comparator channels with selectable internal/external references-supporting closed-loop control and sensor calibration without external components.
How does the R5F104BFGNA#U0 manage power in battery-operated applications?
The R5F104BFGNA#U0 achieves ultra-low power via multiple modes: 66 μA/MHz active current, 0.60 μA STOP mode with RTC + LVD active, and SNOOZE mode for selective peripheral wake-up. Its 1.6–5.5 V supply range allows direct use with primary lithium or coin cells, and the on-chip LVD offers 14 programmable threshold levels for precise brown-out management.
Is the R5F104BFGNA#U0 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 32-pin HWQFN package-including R5F104BFGNA#U0, R5F104BGANA#U0, and R5F104BEANA#U0-share identical pinout, electrical characteristics, and peripheral mapping. Firmware and PCB designs are interchangeable across these variants, enabling scalable memory selection without layout changes.
R5F104BFGNA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-WFQFN Exposed Pad
- Series:
- RL78/G14
- 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:
- 96KB (96K 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; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104BFGNA#U0 FAQ
1.How can I place an order for R5F104BFGNA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104BFGNA#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 R5F104BFGNA#U0 reliable?
The price and inventory of R5F104BFGNA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104BFGNA#U0 is usually 5 days.
3.What payment methods are accepted for R5F104BFGNA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104BFGNA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104BFGNA#U0?
R5F104BFGNA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104BFGNA#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 R5F104BFGNA#U0?
For technical support, including R5F104BFGNA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104BFGNA#U0 requirements.
6.How does Aetrix verify that R5F104BFGNA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F104BFGNA#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 R5F104BFGNA#U0 meets industry standards.
7.What is the process for return or replacement of R5F104BFGNA#U0?
All R5F104BFGNA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104BFGNA#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 R5F104BFGNA#U0 part is unused and in its original packaging.
Return procedure for R5F104BFGNA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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