Renesas R5F104LCGFA#30
- Part No.:
- R5F104LCGFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LCGFA#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104LCGFA#30 from Renesas is a 64-pin LQFP-0.65mm-pitch, industrial-grade (−40°C to +105°C) RL78/G14 16-bit MCU with 192 KB code flash, 8 KB data flash, 20 KB RAM, and integrated peripherals including 12-channel 10-bit ADC, dual UART/LIN, I²C, SPI, RTC, and ultra-low-power HALT/STOP/SNOOZE modes - deployed in motor control and sensor interface modules.
For engineers reviewing the R5F104LCGFA#30 datasheet, R5F104LCGFA#30 pinout, R5F104LCGFA#30 application, or R5F104LCGFA#30 equivalent, key selection criteria include its 192 KB flash / 20 KB RAM configuration, LFQFP-64 package with 0.65 mm pitch, −40°C to +105°C industrial temperature rating, and support for background data flash rewriting and real-time clock calendar functionality.
Technical Context
The R5F104LCGFA#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs min @ 32 MHz to 30.5 µs @ 32.768 kHz). It integrates a 12-bit interval timer, RTC with calendar/alarm/correction, and Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Its power management includes on-chip POR, 14-level LVD with interrupt/reset options, and true low-power operation: 66 µA/MHz active current and 0.60 µA in RTC+LVD-only STOP mode. The DTC supports normal/repeat/block transfer modes activated by 19–26 event sources, reducing CPU load during data movement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and multiply/divide/accumulate instructions |
| Max Operating Frequency | 32 MHz - delivers 44 DMIPS performance for deterministic real-time control loops |
| Flash Memory | 192 KB code flash + 8 KB data flash - supports background rewriting (BGO) and 1M-cycle endurance |
| RAM | 20 KB on-chip RAM - sufficient for RTOS stacks, communication buffers, and sensor fusion variables |
| ADC | 10-bit resolution, 12-channel SAR ADC - operates across full 1.6–5.5 V supply range with internal 1.45 V reference |
| Temperature Range | −40°C to +105°C (G-grade) - qualified for industrial motor drives and HVAC control environments |
| Low-Power Modes | HALT (66 µA/MHz), STOP (0.60 µA), SNOOZE - enables battery-powered operation with sub-second wake-up latency |
Pinout & Package
Package: 64-pin LQFP, 12 × 12 mm body, 0.65 mm pitch, plastic, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; 16-bit timer input; trace clock A - enables debug synchronization and serial comms on same pin |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; trace clock B - supports full-duplex UART with hardware timing capture |
| P10–P17 | SPI/I²C/UART/ADC/Comparator I/O | Multiplexed serial interfaces and analog inputs - configurable via PIOR registers for flexible peripheral routing |
| P30 | INTP3 / SCK00 / SCL00 / TRJO0 | Interrupt input / I²C clock / JTAG reset - provides dual-role debug and communication capability |
| P60–P61 | SCLA0 / SDAA0 | Dedicated I²C bus pins - support standard/fast-mode (100/400 kHz) with internal pull-ups enabled |
| P121–P122 | X1 / X2 / EXCLK | Crystal oscillator inputs - supports 32.768 kHz RTC crystal and up to 20 MHz main system crystal |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up - compatible with external RC or supervisor IC reset signals |
| VDD / VSS | Power supply / ground | Single 1.6–5.5 V supply - eliminates need for external voltage regulators in wide-input designs |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming with boot swapping | Enables field firmware updates without external programmer - secure flash shield window prevents unauthorized access |
| Background data flash rewriting (BGO) | Allows concurrent program execution and nonvolatile parameter storage - critical for logging and calibration retention |
| Event Link Controller (ELC) | Hardware-peripheral linking eliminates CPU polling - reduces ISR overhead and improves deterministic response |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - supports time-stamped sensor data and scheduled wake-up events |
| On-chip voltage detector (LVD) | 14 programmable threshold levels - enables graceful shutdown or brown-out recovery at precise supply voltages |
| Dual UART with LIN support | Two independent UART channels with LIN bus physical layer compliance - simplifies automotive body electronics integration |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Brushless DC motor commutation with current sensing and thermal monitoring in HVAC blowers. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing PWM generation, ADC sampling, and fault protection logic. Use Value: 12-channel 10-bit ADC with internal reference enables simultaneous phase current and temperature acquisition; STOP mode extends battery life in portable service tools. |
Use Scenario: Battery-powered environmental sensor hub aggregating temperature, humidity, and CO₂ readings. IC Role / Device Role / Timing Role: System-on-chip host managing sensor I²C reads, data preprocessing, and BLE/Wi-Fi module wakeup signaling. Use Value: 0.60 µA STOP mode with RTC alarm allows hourly wake-up for measurement; 192 KB flash accommodates sensor fusion firmware and OTA update image. |
| Home Appliance UI Controller | Industrial PLC I/O Module |
Use Scenario: Touch-enabled front panel for washing machine with LED indicators, buzzer feedback, and safety interlocks. IC Role / Device Role / Timing Role: Dedicated UI processor handling capacitive touch scanning, display refresh, audio tone generation, and watchdog supervision. Use Value: Integrated PCLBUZ0/1 timers drive piezo buzzers directly; N-ch open-drain I/Os interface safely with 3.3 V/5 V displays and optocouplers. |
Use Scenario: DIN-rail mounted digital input module converting 24 V industrial signals to isolated CAN messages. IC Role / Device Role / Timing Role: Signal conditioning and protocol translation engine performing level-shifting, debounce filtering, and CAN message framing. Use Value: 14-level LVD detects supply dips before brown-out; ELC links GPIO interrupts to DTC transfers, enabling zero-CPU-cycle input capture for fast edge detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGFA#30 | Same 64-pin LQFP-0.65mm package, but 128 KB flash / 16 KB RAM / 12 KB data flash | Lower memory capacity suits simpler control tasks without complex data logging or multi-protocol stacks | Select when firmware size < 128 KB and cost sensitivity outweighs need for future feature expansion |
| R5F104LLGFA#30 | Same 64-pin LQFP-0.65mm package, with 384 KB flash / 32 KB RAM / 8 KB data flash | Higher memory enables dual-application partitioning (e.g., safety + functional firmware) and larger crypto libraries | Choose for ASIL-B capable systems requiring memory redundancy or advanced security features |
Compared with R5F104LCGFA#30, R5F104LGFA#30 offers reduced memory headroom but lower unit cost for fixed-function controllers, while R5F104LLGFA#30 provides scalable memory for evolving firmware requirements and safety-critical partitioning - all sharing identical pinout, peripheral set, and industrial temperature rating.
Availability
R5F104LCGFA#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance UIs, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F104LCGFA#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 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust peripheral integration, extended temperature operation, and energy-efficient real-time control.
FAQ
What is the maximum operating frequency and core type of the R5F104LCGFA#30?
The R5F104LCGFA#30 features a 16-bit RL78 CPU core with CISC architecture and operates at up to 32 MHz, delivering 44 DMIPS performance. Its 3-stage pipeline and configurable instruction timing (0.03125 µs minimum at 32 MHz) enable deterministic execution for real-time control tasks in the R5F104LCGFA#30.
Does the R5F104LCGFA#30 support background data flash rewriting?
Yes, the R5F104LCGFA#30 supports Background Operation (BGO) for data flash rewriting, allowing program execution from code flash while simultaneously updating nonvolatile parameters. This capability is essential for runtime calibration storage and firmware update staging in the R5F104LCGFA#30.
What is the temperature grade and package type of the R5F104LCGFA#30?
The R5F104LCGFA#30 is rated for industrial operation from −40°C to +105°C (G-grade) and housed in a 64-pin LQFP package with 0.65 mm pitch, 12 × 12 mm body, and RoHS-compliant lead-free finish - matching the mechanical and thermal requirements of demanding industrial deployments using the R5F104LCGFA#30.
How much flash and RAM does the R5F104LCGFA#30 integrate?
The R5F104LCGFA#30 integrates 192 KB of code flash memory, 8 KB of data flash memory, and 20 KB of on-chip RAM. This memory configuration supports complex control algorithms, communication protocol stacks, and buffered sensor data processing within the R5F104LCGFA#30.
Which serial interfaces are available on the R5F104LCGFA#30?
The R5F104LCGFA#30 provides three UART channels (with LIN support), up to ten I²C channels, and up to eight CSI (SPI-compatible) channels. These interfaces enable flexible connectivity to sensors, displays, transceivers, and other peripherals in designs based on the R5F104LCGFA#30.
R5F104LCGFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 48
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LCGFA#30 FAQ
1.How can I place an order for R5F104LCGFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LCGFA#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 R5F104LCGFA#30 reliable?
The price and inventory of R5F104LCGFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LCGFA#30 is usually 5 days.
3.What payment methods are accepted for R5F104LCGFA#30?
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R5F104LCGFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LCGFA#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 R5F104LCGFA#30?
For technical support, including R5F104LCGFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LCGFA#30 requirements.
6.How does Aetrix verify that R5F104LCGFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F104LCGFA#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 R5F104LCGFA#30 meets industry standards.
7.What is the process for return or replacement of R5F104LCGFA#30?
All R5F104LCGFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LCGFA#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 R5F104LCGFA#30 part is unused and in its original packaging.
Return procedure for R5F104LCGFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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