Renesas R5F104GKGNA#W0
- Part No.:
- R5F104GKGNA#W0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F104GKGNA#W0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 48HWQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104GKGNA#W0 from Renesas is a 48-pin HWQFN-packaged RL78/G14 16-bit microcontroller with 384 KB flash, 8 KB data flash, 24 KB RAM, 10-bit ADC (20 channels), and real-time clock - designed for industrial temperature-grade (-40°C to +105°C) embedded control in power-constrained applications such as smart sensors and motor drives.
For engineers reviewing the R5F104GKGNA#W0 datasheet, R5F104GKGNA#W0 pinout, R5F104GKGNA#W0 application, or R5F104GKGNA#W0 equivalent, key selection criteria include its 0.60 μA RTC+LVD stop-mode current, 48 MHz max CPU speed, integrated event link controller (ELC), hardware DTC, and dual-voltage I/O support (1.8 V/2.5 V/3.3 V interface compatibility).
Technical Context
The R5F104GKGNA#W0 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-power mode). It integrates a programmable 19–26-event ELC for peripheral synchronization without CPU intervention.
Its memory subsystem includes 384 KB on-chip code flash (1 KB block size, security-protected erase/write), 8 KB data flash with background operation (BGO) and 1M-cycle endurance, and 24 KB SRAM - with dedicated RAM regions reserved for flash library use (start address F3F00H per documentation).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/accumulate instructions |
| Max Clock Speed | 48 MHz using high-accuracy on-chip oscillator (±1.0% over VDD=1.8–5.5 V, TA=–20 to +85°C) |
| Flash Memory | 384 KB code flash with 1 KB erase blocks, flash shield window, and boot swap function |
| Data Flash | 8 KB with background operation (BGO), 1,000,000 write cycles, rewrite voltage 1.8–5.5 V |
| ADC | 10-bit resolution, 20-channel input, internal 1.45 V reference and temperature sensor |
| Low-Power Modes | Halt (66 μA/MHz), Stop (0.60 μA with RTC+LVD active), Snooze (selective peripheral wake-up) |
| Operating Temp | –40°C to +105°C (industrial G-grade qualification) |
| I/O Count | 44 general-purpose I/O pins, including N-ch open-drain (6 V tolerant) and multi-voltage interface support |
Pinout & Package
Package: HWQFN-48 (7 mm × 7 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 | Crystal input | Connects to low-frequency crystal (32.768 kHz) for RTC and low-power clock source |
| P122 / X2 / EXCLK | Crystal output / external clock input | Drives crystal resonator or accepts external clock up to 20 MHz for system timing flexibility |
| P137 / INTP0 | Interrupt input | Dedicated external interrupt pin with configurable priority for fast system event response |
| P30 / RTC1HZ / SCK00 / SCL00 | Multifunction I/O | Provides 1 Hz RTC output or serves as I²C/SPI interface for sensor connectivity |
| P60 / SCLA0 | I²C serial clock | Primary I²C bus clock line supporting up to 10 channels across device variants |
| P61 / SDAA0 | I²C serial data | Primary I²C bus data line with built-in pull-up capability and noise filtering |
| P120 / ANI19 / VCOUT0 | Analog input / comparator output | Supports analog sensing or comparator-based threshold detection with rail-to-rail output |
| REGC | Voltage regulator capacitor terminal | Requires 0.47–1 μF capacitor to VSS for stable internal LDO operation |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Links 19–26 peripheral events directly to functions (e.g., ADC trigger → DMA transfer) without CPU overhead |
| Data Transfer Controller (DTC) | Enables autonomous memory transfers (normal/repeat/block modes) triggered by interrupts or peripherals |
| Snooze Mode | Permits selective peripheral operation (e.g., UART receive, ADC conversion) while CPU remains halted |
| Multi-Voltage I/O | Supports direct interfacing with 1.8 V, 2.5 V, and 3.3 V logic without level shifters |
| On-Chip BCD Correction | Hardware-accelerated binary-to-BCD conversion for real-time clock/calendar and display drivers |
| Hardware Watchdog | Dedicated low-speed on-chip oscillator ensures reliable reset even during main clock failure |
Applications
| Smart Sensor Node | Industrial Motor Control |
|---|---|
|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and pressure data with local processing and wireless upload. IC Role / Device Role / Timing Role: Main system controller executing sensor fusion algorithms, managing low-power sleep/wake cycles, and driving I²C/SPI sensor interfaces. Use Value: 0.60 μA STOP mode extends battery life; integrated 10-bit ADC and RTC enable precise timestamped measurements without external components. |
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers or industrial pumps requiring commutation timing and fault monitoring. IC Role / Device Role / Timing Role: Real-time motor controller coordinating PWM generation, current sensing via ADC, and overtemperature/overcurrent protection. Use Value: ELC synchronizes ADC sampling with PWM edges; 44 GPIOs support Hall sensor inputs, gate driver enables, and status LEDs. |
| Programmable Power Supply | Building Automation Controller |
|
Use Scenario: Digitally adjustable DC-DC converter with voltage/current regulation, telemetry, and fault logging. IC Role / Device Role / Timing Role: System management MCU handling DAC output for reference voltage control, ADC monitoring of output rails, and communication via UART/I²C. Use Value: Integrated 8-bit DAC provides smooth analog reference tuning; data flash stores calibration coefficients and event logs with BGO. |
Use Scenario: Edge node in楼宇自动化系统 managing lighting, occupancy, and HVAC setpoints via wired (KNX) or wireless (Zigbee) protocols. IC Role / Device Role / Timing Role: Central coordinator interfacing with multiple sensors, relays, and communication transceivers while maintaining time-of-day accuracy. Use Value: RTC with calendar and alarm supports scheduling; 48 MHz performance handles protocol stacks; industrial temp grade ensures reliability in unconditioned spaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GLGNA#W0 | Same package and pinout; 512 KB flash, 48 KB RAM, 8 KB data flash | Higher memory headroom for complex firmware, OTA updates, or larger data buffers | Select when future firmware expansion or extended data logging is required |
| R5F104GJGNA#W0 | Same package and pinout; 256 KB flash, 20 KB RAM, 8 KB data flash | Reduced memory footprint suitable for cost-sensitive or space-constrained designs | Select when application fits within smaller code/data budget and lower BOM cost is prioritized |
Compared with R5F104GKGNA#W0, R5F104GLGNA#W0 offers greater flash/RAM for feature-rich firmware, while R5F104GJGNA#W0 reduces memory capacity and cost - all three share identical 48-pin HWQFN packaging, G-grade temperature range, and peripheral sets, enabling drop-in replacement within their respective memory constraints.
Availability
R5F104GKGNA#W0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and programmable power supplies requiring stable component supply, long-term lifecycle support, and guaranteed G-grade temperature compliance.
Supply support for R5F104GKGNA#W0 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 embedded control with optimized energy efficiency (66 μA/MHz active, 0.60 μA RTC+LVD), targeting industrial automation, sensor hubs, and battery-operated equipment where reliability and thermal robustness are critical.
FAQ
What is the operating temperature range for the R5F104GKGNA#W0?
The R5F104GKGNA#W0 is rated for industrial-grade operation from –40°C to +105°C, as indicated by the 'G' suffix in its part number. This makes it suitable for deployment in harsh environments such as factory floors, outdoor infrastructure, and under-hood automotive auxiliary systems where extended thermal stability is required. The device maintains full functionality and parameter compliance across this entire range.
Does the R5F104GKGNA#W0 support in-circuit debugging?
Yes, the R5F104GKGNA#W0 includes an on-chip debug function compatible with Renesas E2 or E2 Lite debuggers. It supports full break-and-trace capabilities, register inspection, and flash programming via the single-wire debug interface (SWD) using the TOOL0 and TRJIO0 pins. No external debug probe hardware is required beyond standard SWD cabling.
How much RAM is allocated for user application code in the R5F104GKGNA#W0?
The R5F104GKGNA#W0 has 24 KB of on-chip RAM, but a portion is reserved for system use - specifically, the flash self-programming library requires RAM starting at address F3F00H. After accounting for this and stack/heap allocation, typical user-available RAM is approximately 22–23 KB, depending on linker configuration and runtime library selection.
Can the R5F104GKGNA#W0 operate from a single 1.8 V supply?
Yes, the R5F104GKGNA#W0 supports single-supply operation from 1.6 V to 5.5 V, including stable 1.8 V operation. At 1.8 V, it achieves up to 16 MHz CPU speed and retains full peripheral functionality except for high-speed on-chip oscillator modes above 24 MHz, which require ≥2.7 V. I/O pins remain compatible with 1.8 V logic levels.
What packaging and tape specification does R5F104GKGNA#W0 use?
The R5F104GKGNA#W0 uses a 48-pin HWQFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed die pad, and ships in embossed tape format denoted by the '#W0' suffix. This packaging supports automated SMT assembly and provides thermal performance advantages over QFP variants, especially in thermally demanding industrial applications.
R5F104GKGNA#W0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- 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:
- 34
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K 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:
R5F104GKGNA#W0 FAQ
1.How can I place an order for R5F104GKGNA#W0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GKGNA#W0 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 R5F104GKGNA#W0 reliable?
The price and inventory of R5F104GKGNA#W0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GKGNA#W0 is usually 5 days.
3.What payment methods are accepted for R5F104GKGNA#W0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104GKGNA#W0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104GKGNA#W0?
R5F104GKGNA#W0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GKGNA#W0 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 R5F104GKGNA#W0?
For technical support, including R5F104GKGNA#W0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GKGNA#W0 requirements.
6.How does Aetrix verify that R5F104GKGNA#W0 is sourced from the original manufacturer or authorized distributors?
All R5F104GKGNA#W0 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 R5F104GKGNA#W0 meets industry standards.
7.What is the process for return or replacement of R5F104GKGNA#W0?
All R5F104GKGNA#W0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GKGNA#W0, 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 R5F104GKGNA#W0 part is unused and in its original packaging.
Return procedure for R5F104GKGNA#W0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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