Renesas R5F104GCDFB#30
- Part No.:
- R5F104GCDFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F104GCDFB#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,288
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Product details
Overview
R5F104GCDFB#30 from Renesas is a 48-pin LFQFP, 0.5 mm pitch, industrial-grade (D) 16-bit RL78/G14 microcontroller with 96 KB flash, 12 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40 to +85°C. It integrates 16-bit TAU timers, 10-bit ADC (16 channels), UART/SPI/I²C interfaces, RTC, and ultra-low-power HALT/STOP modes for embedded control in metering and sensor nodes.
For engineers reviewing the R5F104GCDFB#30 datasheet, R5F104GCDFB#30 pinout, R5F104GCDFB#30 application, or R5F104GCDFB#30 equivalent, key selection criteria include its 96 KB code flash size, 48-pin LFQFP-0.5 mm package, industrial temperature rating (D), integrated 10-bit ADC with 16 inputs, and support for SNOOZE mode with background data flash rewriting.
Technical Context
The R5F104GCDFB#30 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). It features a configurable Event Link Controller (ELC) linking 19–26 event sources to peripherals, and a Data Transfer Controller (DTC) enabling chain transfers triggered by interrupts without CPU intervention.
Its power architecture includes HALT, STOP, and SNOOZE modes - the latter allowing CPU sleep while UART/SPI continue operation and data flash rewrites execute in background (BGO). The on-chip high-speed oscillator delivers ±1.0% accuracy across 1.8–5.5 V and -20 to +85°C, eliminating need for external crystals in many cost-sensitive designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and multiply/accumulate instructions |
| Flash Memory | 96 KB code flash + 8 KB data flash; supports self-programming with boot swapping and flash shield window |
| RAM | 12 KB on-chip RAM; includes dedicated areas for flash library use (start address FE900H) |
| ADC | 10-bit resolution, 16-channel analog input, internal 1.45 V reference and temperature sensor |
| Timers | 8× 16-bit Timer Array Unit (TAU) channels + 1× 12-bit interval timer + 1× RTC with calendar/alarm |
| Serial Interfaces | 3× UART/LIN, 3–8× CSI (SPI-compatible), 4–10× I²C/simplified I²C |
| Power Modes | 66 μA/MHz active; 0.60 μA in STOP mode with RTC + LVD active; SNOOZE enables peripheral operation during low-power sleep |
Pinout & Package
Package: 48-pin LFQFP, 7 × 7 mm, 0.5 mm pitch (Renesas code PLQP0048KF-A), industrial-grade (D) temperature range (-40 to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Multi-function serial I/O (CSI, UART, I²C, TRDI/O) | Configurable peripheral interface pins supporting simultaneous SPI/UART/I²C with flexible pin assignment via PIOR registers |
| P20–P27 | Analog inputs (ANI0–ANI7) + AVREFP/AVREFM | 16-channel ADC input group with dedicated analog reference voltage terminals for precision measurement |
| P30–P31 | RTC1HZ, INT, TI/TO, PCLBUZ | Real-time clock output and general-purpose timer I/O with buzzer drive capability for user feedback |
| P50–P51 | UART0 (RxD0/TxD0), TOOLRxD/TOOLTxD | Dedicated debug UART channel with on-chip tool interface for programming and trace without external adapters |
| P60–P62 | SCLA0/SDAA0/SSI00 | I²C master/slave and synchronous serial interface for sensor and EEPROM communication |
| P121–P124 | X1/X2/XT1/XT2/EXCLK | Crystal oscillator and external clock inputs supporting main system clock, sub-clock (32.768 kHz), and backup clock domains |
| REGC, VDD, VSS, RESET | Power regulation, supply, ground, reset | On-chip regulator capacitor (REGC) requires 0.47–1 µF to VSS; RESET is active-low with internal POR and LVD options |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA current draw with RTC and LVD active - enables decade-scale battery life in remote sensors |
| Background data flash rewrite (BGO) | Execute program code from flash while rewriting data flash - no interrupt latency or CPU stall during firmware updates |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion → DTC transfer → DMA to RAM) eliminates CPU polling overhead |
| On-chip debug interface | Fully integrated on-chip debug circuit with single-wire SWD support - no external JTAG emulator required |
| Flexible clock system | Selectable high-speed on-chip oscillator (1–64 MHz, ±1.0%) or external crystal - reduces BOM count and layout complexity |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Residential electricity meter with tariff switching, tamper detection, and wireless reporting. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, RTC-based billing intervals, and UART/RS-485 communication. Use Value: 10-bit ADC with internal reference enables accurate current/voltage measurement; STOP mode extends battery backup to >10 years. | Use Scenario: Wireless temperature/humidity node in factory HVAC monitoring with local logging. IC Role / Device Role / Timing Role: Sensor hub aggregating I²C sensor data, running RTC-scheduled reads, and storing logs in data flash. Use Value: Background data flash rewrite allows continuous logging during active sensing; SNOOZE mode maintains UART wake-up while CPU sleeps. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Washing machine main board controlling motor drivers, water valves, and user interface. IC Role / Device Role / Timing Role: Real-time motor timing via 16-bit TAU timers, touch-key scanning, and buzzer feedback generation. Use Value: Integrated PCLBUZ outputs drive piezo elements directly; multi-bank GPIO supports isolated I/O for safety-critical functions. | Use Scenario: DIN-rail mounted lighting controller with DALI and KNX interfaces. IC Role / Device Role / Timing Role: Protocol bridge between DALI slave devices and KNX TP1 bus using dual UART + CSI peripherals. Use Value: ELC links UART RX events to DTC transfers, enabling deterministic protocol parsing without CPU load spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GHDFB#30 | 128 KB flash, 16 KB RAM, same package and peripheral set | Requires larger firmware image; suitable when bootloader or field-upgrade space needed | Select when future firmware growth or secure boot requirements demand >96 KB flash |
| R5F104GDDFB#30 | 64 KB flash, 5.5 KB RAM, identical pinout and peripheral configuration | Limited memory for complex protocols or large buffers; lower cost for simpler control tasks | Choose for cost-optimized designs where 96 KB flash is unnecessary and BOM reduction is critical |
Compared with R5F104GCDFB#30, R5F104GHDFB#30 provides headroom for feature-rich firmware and secure boot, while R5F104GDDFB#30 reduces unit cost and power in resource-constrained applications - both retain identical timing, I/O, and industrial temperature compliance.
Availability
R5F104GCDFB#30 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across extended production lifecycles.
Supply support for R5F104GCDFB#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 true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications requiring robust peripheral integration and long-term supply stability.
FAQ
What is the maximum operating frequency and core type of the R5F104GCDFB#30?
The R5F104GCDFB#30 uses the RL78 16-bit CISC core with a 3-stage pipeline and achieves up to 32 MHz operation. Its minimum instruction execution time is 0.03125 µs at 32 MHz using the high-speed on-chip oscillator, and it supports ultra-low-speed operation down to 32.768 kHz for RTC and low-power sensing - all within the same R5F104GCDFB#30 device.
Does the R5F104GCDFB#30 support in-system programming and data retention during power loss?
Yes, the R5F104GCDFB#30 supports full in-system programming via its on-chip debug interface and includes a dedicated data flash memory (8 KB) rated for 1,000,000 write cycles. It operates across VDD = 1.8–5.5 V, enabling reliable data logging and parameter storage even during brown-out conditions - a key capability confirmed for the R5F104GCDFB#30 in Renesas documentation.
What are the analog capabilities of the R5F104GCDFB#30, including ADC resolution and channel count?
The R5F104GCDFB#30 integrates a 10-bit successive-approximation ADC with 16 analog input channels (ANI0–ANI15), internal 1.45 V reference voltage, and an on-chip temperature sensor. It supports VDD-referenced or internal reference operation, and its analog input range spans 0 to VDD (1.6–5.5 V), making it suitable for direct sensor interfacing without external signal conditioning in the R5F104GCDFB#30.
How does the R5F104GCDFB#30 manage low-power operation in battery-powered applications?
The R5F104GCDFB#30 achieves industry-leading low-power performance with 66 μA/MHz active current, 0.60 μA in STOP mode (RTC + LVD active), and SNOOZE mode enabling peripheral operation (e.g., UART receive, ADC trigger) while CPU sleeps. These modes are hardware-controlled and require no external components - a verified characteristic of the R5F104GCDFB#30 across its industrial temperature range.
Is the R5F104GCDFB#30 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 48-pin LFQFP-0.5 mm package (e.g., R5F104GCDFB#30, R5F104GHDFB#30, R5F104GDDFB#30) share identical pinouts, electrical characteristics, and peripheral mapping. This allows direct substitution within the same footprint for memory scaling - a documented mechanical and functional compatibility specific to the R5F104GCDFB#30 family.
R5F104GCDFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104GCDFB#30 FAQ
1.How can I place an order for R5F104GCDFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GCDFB#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 R5F104GCDFB#30 reliable?
The price and inventory of R5F104GCDFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GCDFB#30 is usually 5 days.
3.What payment methods are accepted for R5F104GCDFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104GCDFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104GCDFB#30?
R5F104GCDFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GCDFB#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 R5F104GCDFB#30?
For technical support, including R5F104GCDFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GCDFB#30 requirements.
6.How does Aetrix verify that R5F104GCDFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F104GCDFB#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 R5F104GCDFB#30 meets industry standards.
7.What is the process for return or replacement of R5F104GCDFB#30?
All R5F104GCDFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GCDFB#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 R5F104GCDFB#30 part is unused and in its original packaging.
Return procedure for R5F104GCDFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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