Renesas R5F104LGGFB#V0
- Part No.:
- R5F104LGGFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LGGFB#V0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104LGGFB#V0 from Renesas is a 64-pin LFQFP, 0.5 mm pitch, industrial-grade (G) 16-bit RL78/G14 microcontroller with 512 KB flash, 48 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40 to +105°C. It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA in RTC+LVD mode), and integrates UART, I²C, SPI, 16-bit timers, 10-bit ADC (20 ch), and RTC with calendar.
For engineers reviewing the R5F104LGGFB#V0 datasheet, R5F104LGGFB#V0 pinout, R5F104LGGFB#V0 application, or R5F104LGGFB#V0 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, industrial temperature rating, integrated data flash with 1M rewrite cycles, background operation capability, and support for LIN-bus via UART peripherals.
Technical Context
The R5F104LGGFB#V0 implements the RL78 CPU core with a 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 ultra-low-speed mode). It includes multiply/divide/accumulate instructions and a 1 MB address space.
Its peripheral set includes an Event Link Controller (ELC) enabling direct hardware linking of 19–26 event sources to peripherals without CPU intervention, and a Data Transfer Controller (DTC) supporting normal, repeat, block, and chain transfer modes triggered by interrupts - reducing CPU load during memory-mapped I/O operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz (44 DMIPS); supports 1–64 MHz on-chip oscillator with ±1.0% accuracy |
| Memory | 512 KB code flash (1 KB blocks), 48 KB RAM, 8 KB data flash with BGO and 1M write cycles |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC (20 channels, internal 1.45 V reference, temp sensor), 8-bit DAC (2 ch, 0–VDD output) |
| Timers & RTC | 12× 16-bit timers (TAU/Timer RJ/RD/RG), 12-bit interval timer, calendar RTC (99-year), watchdog timer |
| Serial Interfaces | Up to 8× CSI (SPI-compatible), 4× UART/LIN, 10× I²C/simplified I²C |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade (G) temperature range (-40 to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 | Crystal input | Connects to low-frequency crystal (32.768 kHz) for RTC and subsystem clock |
| P122 / X2 / EXCLK | Crystal output / external clock input | Drives external crystal; also accepts external clock source up to 20 MHz |
| P137 / INTP0 | External interrupt input | Dedicated wake-up/interrupt pin with configurable sensitivity and noise filter |
| P60 / SCLA0 | I²C bus clock | Open-drain output with internal pull-up; supports standard/fast-mode I²C (100/400 kHz) |
| P61 / SDAA0 | I²C bus data | Open-drain bidirectional line; shares same electrical characteristics as SCLA0 |
| P30 / RTC1HZ / SCK00 / SCL00 / TRJO0 | Multiplexed function pin | Configurable as 1 Hz RTC output, SPI clock, I²C clock, or JTAG trace clock |
| REGC | Regulator capacitor terminal | Must be connected to VSS via 0.47–1 μF capacitor for internal voltage regulator stability |
| VDD / VSS | Power supply / ground | Single 1.6–5.5 V supply; multiple VDD/VSS pairs ensure low-noise analog/digital separation |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming with boot swap | Enables firmware updates in-field without external programmer; boot swap ensures safe rollback |
| Background operation (BGO) | Allows full CPU execution from flash while rewriting data flash - no interrupt latency penalty |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining eliminates CPU polling and ISR overhead for time-critical sequences |
| Ultra-low-power STOP mode | 0.60 μA retention with RTC alarm and LVD monitoring active - ideal for battery-backed systems |
| On-chip debug & flash shield | Full JTAG debugging support plus programmable flash shield window prevents unauthorized read/write access |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
|
Use Scenario: Brushless DC motor control in HVAC blowers and pump drives requiring precise timing, current sensing, and LIN communication. IC Role / Device Role: Main system controller executing FOC algorithms, managing gate drivers via PWM outputs, and communicating over LIN to master ECU. Use Value: Integrated 10-bit ADC (20 ch) enables simultaneous phase current and DC-link voltage sampling; 16-bit timers with dead-time insertion support robust PWM generation. |
Use Scenario: Residential electricity meter with tariff switching, tamper detection, and optical/IR communication interfaces. IC Role / Device Role: Primary metrology and communication controller handling pulse counting, RTC-based billing, and I²C-connected metrology ICs. Use Value: Calendar RTC with alarm and correction ensures accurate time-of-use billing; 8 KB data flash stores 30+ days of consumption logs with 1M-cycle endurance. |
| Automotive Body Electronics | IoT Sensor Hub |
|
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN slave functionality. IC Role / Device Role: LIN-compliant slave node processing switch inputs, driving motors/LEDs, and reporting status via LIN protocol stack. Use Value: UART peripherals natively support LIN 2.2A/B with auto-sync and checksum; ultra-low STOP current extends vehicle battery life during sleep. |
Use Scenario: Battery-powered environmental sensor node aggregating temperature, humidity, and motion data for BLE gateway forwarding. IC Role / Device Role: Central aggregator with ADC inputs, RTC timestamping, and serial interfaces to sensors and wireless MCU. Use Value: 0.60 μA STOP mode with RTC wake-up enables multi-year battery life; internal temperature sensor provides self-calibration reference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGGB#V0 | Same 64-pin LFQFP package, identical peripherals, but rated for -40 to +85°C (D grade) and 384 KB flash / 32 KB RAM | Suitable for commercial/industrial ambient environments without extended temperature requirement | Select when full 512 KB flash and +105°C operation are unnecessary - reduces cost and power in less demanding thermal environments |
| R5F104LLGFB#V0 | Same 64-pin LFQFP-0.5mm package and G-grade (-40 to +105°C), but with 384 KB flash / 32 KB RAM / 8 KB data flash | Matches thermal and mechanical footprint but offers lower memory density for cost-sensitive designs | Choose when application firmware fits within 384 KB flash and 32 KB RAM - maintains full peripheral compatibility and industrial qualification |
Compared with R5F104LGGFB#V0, R5F104LGGB#V0 trades extended temperature rating and flash/RAM capacity for lower cost in standard-temperature applications, while R5F104LLGFB#V0 retains the full industrial temperature range but reduces memory resources - both preserve identical pinout, peripheral set, and low-power behavior.
Availability
R5F104LGGFB#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, automotive body electronics, and IoT sensor hub applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F104LGGFB#V0 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/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained industrial and automotive body applications - emphasizing ultra-low active/standby current and integrated analog peripherals.
FAQ
What is the maximum operating frequency and performance of the R5F104LGGFB#V0?
The R5F104LGGFB#V0 operates at up to 32 MHz with a peak performance of 44 DMIPS. Its RL78 CPU core supports variable instruction execution times - from 0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz - enabling dynamic trade-offs between speed and power. The on-chip oscillator offers selectable frequencies from 1 to 64 MHz with ±1.0% accuracy across the full industrial temperature range.
Does the R5F104LGGFB#V0 support in-system programming and secure firmware updates?
Yes, the R5F104LGGFB#V0 supports full in-system programming via its on-chip debug interface and includes dedicated flash shield window and boot swap functionality. These features allow secure, field-upgradable firmware with rollback protection - critical for industrial and automotive deployments where reliability and security are mandatory.
What analog peripherals are integrated into the R5F104LGGFB#V0?
The R5F104LGGFB#V0 integrates a 10-bit successive-approximation ADC with up to 20 input channels, internal 1.45 V reference voltage, and an on-chip temperature sensor. It also includes an 8-bit DAC with up to two output channels delivering 0–VDD analog voltage, plus two comparators with selectable internal/external references and window mode operation.
How does the R5F104LGGFB#V0 achieve ultra-low power consumption in STOP mode?
The R5F104LGGFB#V0 achieves 0.60 μA STOP mode current by powering down the CPU, flash, and most peripherals while retaining RTC operation, LVD monitoring, and wake-up capability via selected pins (e.g., INTP0, RTC alarm). This mode requires only VDD and VSS connections and a properly decoupled REGC pin - enabling multi-year battery life in metering and sensor applications.
Is the R5F104LGGFB#V0 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 64-pin LFQFP-0.5mm package - including R5F104LGGFB#V0, R5F104LLGFB#V0, and R5F104LGGB#V0 - share identical pinouts and electrical characteristics. This allows drop-in replacement across memory and temperature grades without PCB redesign, provided firmware accommodates differences in flash size and RAM allocation.
R5F104LGGFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- 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:
- 48
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LGGFB#V0 FAQ
1.How can I place an order for R5F104LGGFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LGGFB#V0 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 R5F104LGGFB#V0 reliable?
The price and inventory of R5F104LGGFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LGGFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F104LGGFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LGGFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LGGFB#V0?
R5F104LGGFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LGGFB#V0 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 R5F104LGGFB#V0?
For technical support, including R5F104LGGFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LGGFB#V0 requirements.
6.How does Aetrix verify that R5F104LGGFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104LGGFB#V0 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 R5F104LGGFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F104LGGFB#V0?
All R5F104LGGFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LGGFB#V0, 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 R5F104LGGFB#V0 part is unused and in its original packaging.
Return procedure for R5F104LGGFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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