Renesas R5F104GLGFB#30
- Part No.:
- R5F104GLGFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F104GLGFB#30.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:498
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Product details
Overview
R5F104GLGFB#30 from Renesas is a 48-pin LFQFP, 128 KB flash, 12 KB RAM, 8-bit RL78/G14 microcontroller operating from 1.6 V to 5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low-power HALT/STOP/SNOOZE modes (66 μA/MHz active, 0.60 μA RTC+LVD), used in industrial sensor nodes and battery-powered HMI control.
For engineers reviewing the R5F104GLGFB#30 datasheet, R5F104GLGFB#30 pinout, R5F104GLGFB#30 application, or R5F104GLGFB#30 equivalent, key selection criteria include its -40°C to +105°C industrial temperature grade (G), 48-pin 0.5 mm pitch LFQFP package, integrated 10-bit 20-channel ADC, dual UART/LIN support, and on-chip RTC with calendar function.
Technical Context
The R5F104GLGFB#30 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 ultra-low-speed mode), plus multiply/divide/accumulate instructions and 1 MB address space.
It integrates configurable peripherals including Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, real-time clock with alarm/calendar, watchdog timer, and Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 8-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz (44 DMIPS); high-speed on-chip oscillator ±1.0% accuracy over -20 to +85°C |
| Flash Memory | 128 KB code flash (1 KB block size) with security lock and self-programming capability |
| Data Flash | 8 KB data flash with background operation (BGO) and 1,000,000 write cycles (typ.) |
| RAM | 12 KB on-chip RAM for variables, stack, and flash library execution |
| ADC | 10-bit resolution, 20 analog input channels, internal 1.45 V reference and temperature sensor |
| Operating Temp | -40°C to +105°C (industrial G-grade), enabling deployment in harsh environments without derating |
Pinout & Package
Package: 48-pin LFQFP (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121/X1 | Crystal Oscillator Input | Connects to 32.768 kHz crystal for RTC and low-power subsystem clock |
| P122/X2/EXCLK | Crystal Oscillator Output / External Clock Input | Drives external crystal; also accepts external clock source up to 20 MHz |
| RESET | Active-Low Reset Input | Asynchronous reset with internal pull-up; compatible with external reset ICs |
| VDD | Main Power Supply | 1.6–5.5 V single supply; powers core, flash, and most peripherals |
| VSS | Ground Reference | Digital ground plane connection; requires low-impedance PCB routing |
| REGC | Regulator Decoupling | Must connect 0.47–1 µF capacitor to VSS for internal voltage regulator stability |
| P10–P17 | Multi-function Serial I/O | Configurable CSI, UART, I²C, and TRDIO interfaces supporting LIN bus protocol |
| P00/P01 | UART1 TX/RX | Dedicated full-duplex UART channel with TRGCLKA/B for synchronized timing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE (fast wake-up with peripheral operation) |
| On-chip debug & programming | Fully supported via single-wire debug interface; no external debugger required for flash updates |
| Peripheral event linking | Event Link Controller (ELC) enables 19–26 hardware-triggered peripheral chains without CPU overhead |
| Real-time clock | Calendar function (99-year range), alarm interrupt, and automatic clock correction for long-term accuracy |
| Hardware safety features | On-chip LVD with 14 selectable voltage thresholds and POR circuit for robust power sequencing |
Applications
| Industrial Sensor Node | Smart Thermostat Control |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity sensor with local display and BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based wake scheduling, UART-to-BLE bridge, and low-power state transitions. Use Value: 0.60 μA STOP mode extends 2xAA battery life to >5 years; integrated 10-bit ADC eliminates external signal conditioning. |
Use Scenario: Residential HVAC controller with touch interface, ambient sensing, and cloud connectivity. IC Role / Device Role / Timing Role: Central MCU handling UI polling, PID loop execution, relay driving, and time-stamped log storage. Use Value: Calendar RTC enables precise scheduling of heating/cooling cycles; 128 KB flash accommodates firmware + OTA update partition. |
| Motorized Valve Actuator | Industrial Panel Meter |
Use Scenario: 24 V DC actuator with position feedback, fault reporting, and Modbus RTU communication. IC Role / Device Role / Timing Role: Real-time motion controller interfacing with H-bridge drivers, potentiometer ADC, and RS-485 transceiver. Use Value: TAU timers provide precise PWM generation for motor control; dual UART supports simultaneous Modbus and debug port. |
Use Scenario: DIN-rail mounted meter reading analog process signals (4–20 mA, 0–10 V) and displaying values locally. IC Role / Device Role / Timing Role: Signal acquisition engine with calibrated ADC, digital filtering, LCD driver, and serial diagnostics. Use Value: Internal 1.45 V reference ensures stable ADC accuracy across temperature; -40°C to +105°C rating guarantees operation in enclosure heat buildup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GHGFB#30 | Same 48-pin LFQFP package, 192 KB flash, 16 KB RAM, identical peripheral set and pinout | Higher flash/RAM supports larger protocol stacks (e.g., full Modbus TCP) and extended logging | Select when firmware growth headroom or future feature expansion is required |
| R5F104GLAFB#30 | Same 48-pin LFQFP package, 128 KB flash, 12 KB RAM, but rated for -40°C to +85°C (A-grade) | Limited to commercial/indoor environments; lacks extended temperature qualification | Choose only for cost-sensitive non-industrial applications where ambient stays below 85°C |
Compared with R5F104GLGFB#30, R5F104GHGFB#30 provides scalable memory for complex firmware while maintaining identical footprint and timing behavior, whereas R5F104GLAFB#30 reduces thermal margin to lower cost-neither is pin-compatible replacement without validation of temperature and memory requirements.
Availability
R5F104GLGFB#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat control, motorized valve actuators, and panel meters requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for R5F104GLGFB#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line delivers true low-power 8-bit MCUs optimized for cost-sensitive industrial and consumer devices requiring extended battery life, robust operation from -40°C to +105°C, and integrated analog peripherals.
FAQ
What is the maximum operating frequency and power consumption of the R5F104GLGFB#30?
The R5F104GLGFB#30 operates at up to 32 MHz with 44 DMIPS performance and consumes 66 μA per MHz during active operation. In STOP mode with only RTC and LVD enabled, it draws just 0.60 μA - a critical specification for battery-powered systems. Its 1.6 V to 5.5 V supply range allows direct integration with diverse power architectures without level-shifting.
Does the R5F104GLGFB#30 support LIN bus communication?
Yes, the R5F104GLGFB#30 supports LIN bus communication through its UART peripherals, which are explicitly documented as LIN-bus capable in the RL78/G14 datasheet. UART channels can be configured for LIN 2.2A compliance, including break detection, sync field handling, and checksum calculation - all implemented in hardware to reduce CPU load during frame transmission and reception.
What is the flash memory endurance and data retention for R5F104GLGFB#30?
The R5F104GLGFB#30 features 128 KB of code flash memory with 100,000 erase/write cycles (min.) and 20-year data retention at 85°C. Its 8 KB data flash supports 1,000,000 write cycles (typ.) with background operation (BGO), allowing program execution from main flash while rewriting data flash - essential for reliable parameter storage and firmware updates.
How many analog input channels does the R5F104GLGFB#30 ADC support?
The R5F104GLGFB#30 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels (ANI0–ANI19), including dedicated inputs for internal temperature sensor and reference voltage monitoring. It supports programmable sampling time, scan mode, and conversion triggers from timers or external events - enabling precise, deterministic analog acquisition in real-time control loops.
Is the R5F104GLGFB#30 pin-compatible with other RL78/G14 variants in 48-pin LFQFP?
Yes, the R5F104GLGFB#30 shares identical pinout and electrical characteristics with all other RL78/G14 48-pin LFQFP variants (e.g., R5F104GHGFB#30, R5F104GLAFB#30), including identical power, reset, oscillator, and I/O pin assignments. This enables drop-in replacement within the same package family when memory or temperature grade requirements change - provided firmware and thermal design accommodate the variant's specifications.
R5F104GLGFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 34
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 10x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104GLGFB#30 FAQ
1.How can I place an order for R5F104GLGFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GLGFB#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 R5F104GLGFB#30 reliable?
The price and inventory of R5F104GLGFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GLGFB#30 is usually 5 days.
3.What payment methods are accepted for R5F104GLGFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104GLGFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104GLGFB#30?
R5F104GLGFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GLGFB#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 R5F104GLGFB#30?
For technical support, including R5F104GLGFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GLGFB#30 requirements.
6.How does Aetrix verify that R5F104GLGFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F104GLGFB#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 R5F104GLGFB#30 meets industry standards.
7.What is the process for return or replacement of R5F104GLGFB#30?
All R5F104GLGFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GLGFB#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 R5F104GLGFB#30 part is unused and in its original packaging.
Return procedure for R5F104GLGFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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