Renesas R5F104BFGFP#30
- Part No.:
- R5F104BFGFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F104BFGFP#30.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 32LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:999
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Product details
Overview
R5F104BFGFP#30 from Renesas is a 32-bit RL78/G14 microcontroller with 96 KB flash, 12 KB RAM, and 48-pin LFQFP (0.5 mm pitch) package, operating from 1.6–5.5 V at -40°C to +85°C (industrial grade D). It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates 10-bit ADC (16 channels), UART/SPI/I²C interfaces, RTC, and hardware DTC/ELC for sensor control and industrial HMI applications.
For engineers reviewing the R5F104BFGFP#30 datasheet, R5F104BFGFP#30 pinout, R5F104BFGFP#30 application, or R5F104BFGFP#30 equivalent, key selection criteria include its 48-pin LFQFP footprint, 96 KB code flash with data flash shield window, real-time clock with calendar/alarm, and support for background data flash rewriting while executing program code.
Technical Context
The R5F104BFGFP#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs @ 32 MHz to 30.5 µs @ 32.768 kHz). It uses on-chip high-accuracy oscillator (±1.0% over -20 to +85°C) and supports multiple low-power modes: HALT, STOP, and SNOOZE.
Peripheral integration includes Event Link Controller (ELC) for 19–26 event signal routing, Data Transfer Controller (DTC) with chain transfer, and dual-voltage I/O supporting 1.8/2.5/3.0 V interfacing. The device supports self-programming with boot swapping and flash shield window protection for secure firmware updates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 32-bit CISC CPU with 3-stage pipeline and multiply/divide instructions |
| Max Clock Speed | 32 MHz - enables 44 DMIPS performance for real-time control tasks |
| Flash Memory | 96 KB code flash with 1 KB block size, erase/write prohibition security function |
| Data Flash | 8 KB with background operation (BGO), 1M rewrite cycles, 1.8–5.5 V programming voltage |
| RAM | 12 KB on-chip SRAM - sufficient for RTOS, protocol stacks, and sensor buffering |
| ADC | 10-bit resolution, 16 analog input channels, internal 1.45 V reference and temperature sensor |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE - extends battery life in portable equipment |
Pinout & Package
Package: 48-pin LFQFP, 7 × 7 mm, 0.5 mm pitch, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK11/SCL11/TRDIOD1 | SPI/I²C/UART peripheral multiplexing | Configurable serial interface pin supporting master/slave SPI, I²C, or LIN-capable UART |
| P16/TI01/TO01/INTP5/TRDIOC0/IVREF0 | Timer input/output with interrupt and reference voltage | Enables precise PWM generation, capture timing, and internal voltage reference for ADC calibration |
| P30/INTP3/RTC1HZ/SCK00/SCL00/TRJO0 | Real-time clock output and serial interface | Provides 1 Hz RTC tick for timekeeping and doubles as SPI/I²C clock source for external peripherals |
| P60/SCLA0 and P61/SDAA0 | I²C bus lines | Dedicated open-drain pins for standard-mode (100 kHz) and fast-mode (400 kHz) I²C communication |
| REGC | Regulator capacitor connection | Requires 0.47–1 µF capacitor to VSS for internal LDO stability - critical for low-noise analog operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 66 μA/MHz active current enables energy-efficient motor control and sensor polling loops |
| Background data flash rewriting | Allows firmware updates without halting application execution - essential for field-upgradable industrial devices |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining eliminates CPU overhead for time-critical signal processing |
| On-chip RTC with calendar | 99-year calendar, alarm, and clock correction support accurate timestamping in data loggers and HVAC controllers |
| Hardware DTC with chain transfer | Reduces CPU load during ADC-to-memory or UART-to-buffer transfers - improves deterministic response in real-time systems |
Applications
| Industrial Sensor Node | Smart Home Thermostat |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity node with local display and BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based wake scheduling, SPI flash logging, and UART-to-BLE bridge. Use Value: 0.60 μA STOP mode extends 2xAA battery life beyond 5 years; BGO enables seamless OTA firmware patching. | Use Scenario: Wall-mounted HVAC controller with touch UI, ambient sensing, and cloud connectivity. IC Role / Device Role / Timing Role: Central MCU handling capacitive touch scanning, 10-bit ADC for thermistor readings, RTC calendar for scheduling, and UART to Wi-Fi module. Use Value: Dual-voltage I/O interfaces 3.3 V touch controller and 5 V relay drivers; ELC synchronizes touch scan with ADC conversion. |
| Programmable Logic Controller (PLC) I/O Module | Energy Meter Communication Hub |
Use Scenario: DIN-rail mounted digital I/O expansion module with RS-485 Modbus RTU interface. IC Role / Device Role / Timing Role: Real-time I/O manager using DTC for high-speed GPIO state capture and UART DMA for error-free Modbus frame transmission. Use Value: 44 DMIPS ensures sub-100 µs I/O scan cycle; hardware CRC acceleration offloads protocol checksum computation. | Use Scenario: Two-way communication hub between smart meter ICs (e.g., metrology SoCs) and cellular/LPWAN gateways. IC Role / Device Role / Timing Role: Protocol translator and buffer manager with UART (to metrology IC), SPI (to secure element), and I²C (to RTC/EEPROM). Use Value: 8 KB data flash stores encrypted meter logs; flash shield window prevents unauthorized firmware modification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GFGFP#30 | 256 KB flash, 24 KB RAM, same 48-pin LFQFP package and peripheral set | Supports larger firmware images (e.g., embedded web server, multi-protocol stacks) | Select when future firmware growth or additional feature integration is anticipated |
| R5F104BFGLF#30 | Same 96 KB flash/12 KB RAM but in 48-pin HWQFN (7 × 7 mm, 0.5 mm pitch) | Better thermal performance and smaller PCB footprint; requires different layout and reflow profile | Choose for space-constrained designs where thermal dissipation is critical |
Compared with R5F104BFGFP#30, R5F104GFGFP#30 offers scalable memory for complex applications without changing pinout, while R5F104BFGLF#30 provides identical functionality in a thermally superior QFN package-enabling higher reliability in sealed enclosures or high-ambient environments.
Availability
R5F104BFGFP#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart home thermostats, PLC I/O modules, and energy meter communication hubs requiring stable component supply across extended product lifecycles.
Supply support for R5F104BFGFP#30 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 family targets cost-sensitive, ultra-low-power general-purpose applications - designed to replace legacy 8/16-bit MCUs with enhanced performance, integrated peripherals, and robust functional safety support (IEC 61508 SIL2-ready).
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104BFGFP#30?
The R5F104BFGFP#30 operates up to 32 MHz with an RL78 CPU core delivering 44 DMIPS. Its high-accuracy on-chip oscillator maintains ±1.0% tolerance across -20°C to +85°C, eliminating need for external crystal in many applications. This performance level supports real-time control loops, sensor fusion, and lightweight protocol stacks without external acceleration.
Does the R5F104BFGFP#30 support in-system programming and secure firmware updates?
Yes, the R5F104BFGFP#30 supports full in-system programming via on-chip debug interface and includes flash shield window protection. It enables secure firmware updates using boot swapping and block-level write/erase prohibition - preventing unauthorized modification of critical bootloader or configuration sectors during field deployment.
How does the R5F104BFGFP#30 manage power in battery-operated applications?
The R5F104BFGFP#30 achieves 0.60 μA in STOP mode (RTC + LVD active) and 66 μA/MHz in HALT mode. Its SNOOZE mode allows selected peripherals (e.g., ADC, UART) to operate autonomously while CPU sleeps - enabling periodic sensor reads and wireless wake-ups with minimal energy overhead. Voltage range spans 1.6–5.5 V, supporting single-cell Li-ion or dual-AA configurations.
What serial communication interfaces are integrated into the R5F104BFGFP#30?
The R5F104BFGFP#30 integrates four UART channels (with LIN-bus support), up to ten I²C/simplified I²C channels, and three to eight CSI (SPI-compatible) channels. All interfaces support hardware flow control and asynchronous operation. Pin multiplexing via PIOR registers allows flexible routing - e.g., P60/P61 serve dedicated I²C, while P10–P15 support configurable SPI/I²C/UART functions.
Is the R5F104BFGFP#30 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 48-pin LFQFP package - including R5F104BFGFP#30, R5F104GFGFP#30, and R5F104LFGFP#30 - share identical pinouts and electrical characteristics. Firmware and PCB layouts are interchangeable across memory variants, simplifying design scalability and inventory management for industrial OEMs.
R5F104BFGFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- RL78/G14
- 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:
- 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:
R5F104BFGFP#30 FAQ
1.How can I place an order for R5F104BFGFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104BFGFP#30 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 R5F104BFGFP#30 reliable?
The price and inventory of R5F104BFGFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104BFGFP#30 is usually 5 days.
3.What payment methods are accepted for R5F104BFGFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104BFGFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104BFGFP#30?
R5F104BFGFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104BFGFP#30 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 R5F104BFGFP#30?
For technical support, including R5F104BFGFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104BFGFP#30 requirements.
6.How does Aetrix verify that R5F104BFGFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F104BFGFP#30 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 R5F104BFGFP#30 meets industry standards.
7.What is the process for return or replacement of R5F104BFGFP#30?
All R5F104BFGFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104BFGFP#30, 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 R5F104BFGFP#30 part is unused and in its original packaging.
Return procedure for R5F104BFGFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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