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Renesas R5F104GKGNA#U0
- Part No.:
- R5F104GKGNA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F104GKGNA#U0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,910
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Product details
Overview
R5F104GKGNA#U0 from Renesas is a 48-pin LFQFP-packaged 16-bit RL78/G14 microcontroller with 384 KB flash, 8 KB data flash, 24 KB RAM, and industrial-grade temperature support (−40°C to +105°C). It integrates a 32 MHz CPU delivering 44 DMIPS, ultra-low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD), and peripherals including 12-channel 10-bit ADC, dual DAC, RTC, and multiple serial interfaces for embedded control in HVAC, motor drives, and smart sensors.
For engineers reviewing the R5F104GKGNA#U0 datasheet, R5F104GKGNA#U0 pinout, R5F104GKGNA#U0 application, or R5F104GKGNA#U0 equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options - all aligned to the official RL78/G14 Rev. 3.40 specification.
Technical Context
The R5F104GKGNA#U0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It features on-chip high-accuracy oscillator (±1.0% over −20°C to +85°C, VDD = 1.8–5.5 V) and supports HALT/STOP/SNOOZE low-power modes.
Peripheral integration includes Event Link Controller (ELC) for hardware-triggered peripheral chaining, Data Transfer Controller (DTC) with block/repeat transfer and chain function, and background operation (BGO) for data flash rewriting while executing code from program memory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and low-energy per instruction. |
| Max Operating Frequency | 32 MHz; delivers 44 DMIPS performance suitable for closed-loop motor control and sensor fusion. |
| Flash Memory | 384 KB code flash (block size 1 KB); supports secure erase prohibition and boot swap for robust firmware updates. |
| Data Flash | 8 KB with 1,000,000 write cycles (typ.), BGO enabled; allows non-volatile parameter storage without halting application code. |
| RAM | 24 KB on-chip SRAM; sufficient for RTOS stacks, communication buffers, and control algorithm variables. |
| ADC | 10-bit resolution, up to 20 channels, internal 1.45 V reference and temperature sensor; enables precision analog monitoring in industrial environments. |
| Operating Voltage | 1.6 V to 5.5 V single supply; supports direct battery operation (e.g., 3×AA, LiSOCl₂) and mixed-voltage system interfacing. |
| Temperature Range | −40°C to +105°C (G-grade); qualified for under-hood automotive subsystems and industrial PLC I/O modules. |
Pinout & Package
Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 | Crystal input | Connects to low-frequency crystal (32.768 kHz) for RTC and ultra-low-power clock source. |
| P122 / X2 / EXCLK | Crystal output / external clock input | Drives external crystal; also accepts external clock signal for bypass mode or precise timing synchronization. |
| P137 / INTP0 | Interrupt input 0 | Dedicated wake-up/interrupt source with configurable edge sensitivity; used for emergency stop or sensor event detection. |
| P60 / SCLA0 | I²C bus clock line | Primary I²C interface clock for communication with EEPROM, temperature sensors, or PMICs. |
| P61 / SDAA0 | I²C bus data line | Open-drain bidirectional I²C data line supporting standard/fast-mode (100/400 kHz) protocols. |
| P20 / ANI0 / AVREFP | Analog input 0 / ADC reference positive | Configurable as ADC channel or positive reference voltage input; enables ratiometric sensing with external references. |
| P21 / ANI1 / AVREFM | Analog input 1 / ADC reference negative | Supports differential ADC measurements or negative reference for offset calibration in precision analog front-ends. |
| REGC | Regulator capacitor terminal | Requires 0.47–1 μF capacitor to VSS for internal LDO stability; critical for consistent low-power mode behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables <0.60 μA RTC+LVD retention current; extends battery life to years in metering and remote sensor nodes. |
| Self-programming with flash shield window | Allows secure field firmware updates by protecting designated flash regions from accidental overwrite during runtime. |
| Event Link Controller (ELC) | Eliminates CPU overhead by directly linking 19–26 peripheral events (e.g., timer overflow → ADC trigger → DMA transfer). |
| Background operation (BGO) for data flash | Permits concurrent code execution and 8 KB data flash rewrite-critical for logging or adaptive calibration without system freeze. |
| On-chip key interrupt and buzzer controller | Reduces external component count in HMI designs; supports capacitive touch wake-up and audible feedback generation. |
| Dual 8-bit DAC outputs | Provides real-time analog output (0–VDD) for actuator control (e.g., valve positioning, LED dimming) without external DACs. |
Applications
| Smart Thermostats | Industrial Motor Drives |
|---|---|
|
Use Scenario: Residential and commercial HVAC controllers requiring precise temperature/humidity sensing, user interface, and relay/valve actuation. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition (ADC), display (LCD/LED), communication (UART/I²C), and real-time scheduling via RTC and 16-bit timers. Use Value: Integrated 10-bit ADC (20 ch), dual DAC, and ultra-low-power STOP mode enable battery-backed operation and responsive UI with minimal BOM cost. |
Use Scenario: Low-voltage BLDC/PMSM drives in pumps, fans, and compressors with integrated current sensing and commutation logic. IC Role / Device Role / Timing Role: Real-time motor control unit executing FOC algorithms using timer array unit (TAU) for PWM generation and ADC sampling synchronization. Use Value: ELC-triggered ADC→DMA→CPU chain ensures sub-microsecond timing consistency between current sampling and PWM update, improving torque ripple suppression. |
| Wireless Sensor Nodes | Programmable Logic Controllers (PLC) I/O Modules |
|
Use Scenario: Battery-powered environmental monitors (CO₂, VOC, particulate) transmitting data via BLE or Sub-GHz RF transceivers. IC Role / Device Role / Timing Role: Host MCU handling sensor fusion, low-power scheduling (RTC alarm wake-up), and SPI/I²C interface to RF IC and flash memory. Use Value: 66 μA/MHz active current and SNOOZE mode reduce average system power to <10 μA, enabling >5-year battery life with coin-cell power. |
Use Scenario: DIN-rail mounted digital I/O expansion modules for industrial automation, supporting discrete input debouncing and output drive control. IC Role / Device Role / Timing Role: Dedicated I/O manager with programmable N-ch open-drain outputs (6 V tolerant), key interrupt for status change detection, and LVD reset supervision. Use Value: −40°C to +105°C rating and on-chip LVD (14-level selectable) ensure reliable operation in uncontrolled cabinet environments with wide supply fluctuations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GLGFB#V0 | Same 48-pin LFQFP package, 512 KB flash, 32 KB RAM, identical peripheral set and pinout. | Higher memory capacity supports larger protocol stacks (e.g., Modbus TCP, CAN FD firmware) and extended data logging. | Select when firmware size exceeds 384 KB or additional RAM is needed for multi-threaded RTOS tasks. |
| R5F104GKAFB#V0 | Same 48-pin LFQFP, 384 KB flash, 24 KB RAM, but rated for −40°C to +85°C (A/D grade), not G-grade. | Limited to consumer or controlled-environment industrial use; lacks extended temperature qualification. | Choose only if operating ambient stays ≤+85°C and cost optimization is prioritized over thermal margin. |
Compared with R5F104GKGNA#U0, R5F104GLGFB#V0 offers headroom for future firmware growth without layout changes, while R5F104GKAFB#V0 trades industrial temperature resilience for lower procurement cost in thermally benign deployments.
Availability
R5F104GKGNA#U0 is available at Aetrix Electronics and suitable for HVAC controllers, industrial motor drives, and wireless sensor nodes requiring stable component supply across long-lifecycle embedded programs.
Supply support for R5F104GKGNA#U0 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 16-bit MCUs optimized for cost-sensitive, energy-constrained applications demanding rich peripheral integration and industrial reliability.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104GKGNA#U0?
The R5F104GKGNA#U0 operates at up to 32 MHz with its on-chip high-speed oscillator, delivering 44 DMIPS of processing performance. This speed is achieved with ±1.0% accuracy across VDD = 1.8–5.5 V and TA = −20°C to +85°C, making it suitable for time-critical control loops in motor drives and sensor fusion applications where deterministic timing is essential. The R5F104GKGNA#U0 maintains full peripheral functionality at this frequency.
Does the R5F104GKGNA#U0 support in-system programming and secure firmware updates?
Yes, the R5F104GKGNA#U0 supports full in-system programming via on-chip debug interface and includes flash shield window functionality to protect designated memory regions from accidental overwrite. It also implements block-erase prohibition and boot swap capability, enabling robust dual-bank firmware updates without external programmers. These features are documented in the RL78/G14 hardware manual and supported by Renesas' Flash Self-Programming Library.
What are the analog capabilities of the R5F104GKGNA#U0, and how are they applied in sensor systems?
The R5F104GKGNA#U0 integrates a 10-bit ADC with up to 20 input channels, internal 1.45 V reference, and on-die temperature sensor - enabling direct ratiometric measurement of resistive sensors (e.g., RTDs, thermistors) and voltage-based transducers. It also includes two 8-bit DACs for analog output generation (0–VDD), supporting closed-loop control of actuators like valves or dimmable LEDs without external components. These capabilities are confirmed in the RL78/G14 datasheet Rev. 3.40, Section 1.1.
How does the R5F104GKGNA#U0 achieve ultra-low power consumption in battery-operated devices?
The R5F104GKGNA#U0 achieves ultra-low power via multiple dedicated modes: HALT (66 μA/MHz active), STOP (0.60 μA with RTC + LVD only), and SNOOZE (selective peripheral wake-up). Its 1.6–5.5 V operating range allows direct connection to primary batteries, and the on-chip LVD with 14 selectable thresholds enables precise brown-out detection. These features are validated in the RL78/G14 datasheet's power consumption tables and are integral to its design for multi-year battery life in wireless sensors.
Is the R5F104GKGNA#U0 pin-compatible with other RL78/G14 variants in the same package?
Yes, the R5F104GKGNA#U0 is pin-compatible with all 48-pin LFQFP variants in the RL78/G14 family, including R5F104GLGFB#V0 and R5F104GKAFB#V0. Pin functions, power/ground locations, and peripheral mappings match exactly across these parts - verified in the RL78/G14 pin configuration diagrams (Section 1.3.6, Rev. 3.40). This enables drop-in replacement for memory or temperature grade upgrades without PCB revision.
R5F104GKGNA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- 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:
- 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#U0 FAQ
1.How can I place an order for R5F104GKGNA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GKGNA#U0 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#U0 reliable?
The price and inventory of R5F104GKGNA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GKGNA#U0 is usually 5 days.
3.What payment methods are accepted for R5F104GKGNA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104GKGNA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104GKGNA#U0?
R5F104GKGNA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GKGNA#U0 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#U0?
For technical support, including R5F104GKGNA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GKGNA#U0 requirements.
6.How does Aetrix verify that R5F104GKGNA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F104GKGNA#U0 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#U0 meets industry standards.
7.What is the process for return or replacement of R5F104GKGNA#U0?
All R5F104GKGNA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GKGNA#U0, 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#U0 part is unused and in its original packaging.
Return procedure for R5F104GKGNA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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