Renesas R5F104GCANA#U0
- Part No.:
- R5F104GCANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F104GCANA#U0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48HWQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104GCANA#U0 from Renesas is a 48-pin HWQFN-packaged 16-bit RL78/G14 microcontroller with 16 KB flash, 2.5 KB RAM, and 4 KB data flash, operating from 1.6–5.5 V at -40 to +85°C (A-grade), delivering 44 DMIPS at 32 MHz for ultra-low-power embedded control in battery-powered sensors and industrial HMI.
For engineers reviewing the R5F104GCANA#U0 datasheet, R5F104GCANA#U0 pinout, R5F104GCANA#U0 application, or R5F104GCANA#U0 equivalent, this page provides verified electrical specs, validated package mapping, confirmed peripheral integration (10-channel I²C, 12-channel 16-bit timer, 8-channel ADC), and real-world use context for rapid schematic and firmware validation.
Technical Context
The R5F104GCANA#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), and includes on-chip debug, self-programming with boot swap, and background operation for data flash rewriting while executing code.
It integrates dual-clock domains: high-accuracy ±1.0% on-chip oscillator (selectable 1–64 MHz) and independent subsystem clock for RTC/LVD, enabling simultaneous low-power RTC+LVD operation at 0.60 µA, plus event-driven peripherals via Event Link Controller (ELC) and Data Transfer Controller (DTC) for deterministic ISR offloading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing control and low gate count for cost-sensitive designs. |
| Max Operating Frequency | 32 MHz (44 DMIPS); delivers sufficient throughput for real-time motor control loops and protocol stacks without external clocking. |
| Flash Memory | 16 KB code flash + 4 KB data flash; supports secure block erase prohibition and background rewriting during program execution. |
| RAM Size | 2.5 KB on-chip RAM; sufficient for RTOS task stacks, sensor fusion buffers, and LIN/UART protocol state machines. |
| Supply Voltage Range | 1.6 V to 5.5 V; allows direct interface with 1.8 V, 3.3 V, and 5 V peripherals without level shifters. |
| Low-Power Modes | HALT (66 µA/MHz), STOP (0.60 µA with RTC+LVD active); extends battery life in always-on monitoring applications. |
| Analog Peripherals | 8/10-bit ADC (8 channels), 8-bit DAC (2 channels), 2 comparators; enables closed-loop analog sensing and actuation without external ICs. |
| Serial Interfaces | Up to 10 I²C channels, 4 UART/LIN channels, 8 CSI/SPI channels; supports multi-sensor networks and automotive diagnostics. |
Pinout & Package
48-pin HWQFN (7 × 7 mm, 0.5 mm pitch) with exposed die pad recommended to be connected to VSS; RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit output and timer input; supports asynchronous serial communication and edge-triggered capture. |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive input and timer output; enables full-duplex UART and PWM generation with trigger synchronization. |
| P10–P17 | I²C/SPI/UART/Timer I/O group | Configurable multi-function pins supporting SCL/SDA, SCK/SI/SO, TxD/RxD, and timer I/O with peripheral I/O redirection. |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM | 8-channel analog input bank with dedicated reference voltage terminals; supports ratiometric sensor measurements and temperature sensing. |
| P30–P31 | INTP3 / RTC1HZ / TI03 / TO03 | Real-time clock interrupt output and general-purpose timer I/O; enables precise timekeeping and periodic wake-up from STOP mode. |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; compatible with external reset supervisors and manual reset buttons. |
| VDD / VSS | Power supply / ground | Dual power pins support clean analog/digital separation; VDD must be decoupled with 0.1 µF ceramic capacitor near package. |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF capacitor to VSS to stabilize internal LDO; omission causes unstable operation or brown-out resets. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP modes | 66 µA/MHz active current and 0.60 µA RTC+LVD retention enable >10-year coin-cell operation in wireless sensors. |
| On-chip debug & self-programming | Eliminates need for external debug probe; supports field firmware updates via UART using boot swap and flash shield window. |
| Event Link Controller (ELC) | Links 19–26 peripheral events (e.g., ADC EOC → DMA transfer) without CPU intervention, reducing ISR latency by >90%. |
| Background data flash rewrite | Permits logging sensor data to nonvolatile memory while running control algorithms-no CPU stall or code relocation required. |
| Multi-voltage I/O capability | Supports 1.8 V, 2.5 V, and 3 V logic interfaces directly; avoids external level shifters in mixed-voltage systems. |
| Integrated LIN bus support | UART peripheral includes LIN break detection and sync field generation per ISO 17987-4, enabling automotive body electronics integration. |
Applications
| Smart Thermostat Sensor Node | Industrial Panel HMI Controller |
|---|---|
|
Use Scenario: Battery-powered wall-mounted thermostat collecting ambient temperature/humidity and driving local LCD display and relay outputs. IC Role / Device Role / Timing Role: Main system controller managing sensor ADC reads, PID loop execution, LCD refresh via SPI, and relay timing via 16-bit timers. Use Value: 0.60 µA STOP mode with RTC maintains timekeeping for scheduling; 16 KB flash hosts full UI stack and calibration tables. |
Use Scenario: DIN-rail mounted HMI unit interfacing with PLCs via RS-485 and displaying status via 4.3" TFT with capacitive touch. IC Role / Device Role / Timing Role: Bridge controller handling UART-to-SPI translation, touch controller polling, and LED dimming via 8-bit DAC. Use Value: 10-channel I²C manages multiple touch ICs and EEPROMs; 4 KB data flash stores user configuration and calibration offsets. |
| Wireless HVAC Actuator | Medical Infusion Pump Monitor |
|
Use Scenario: BLE-enabled damper actuator receiving commands over wireless link and controlling stepper motor position via PWM. IC Role / Device Role / Timing Role: Real-time motion controller generating precise 40 kHz PWM for motor drivers and decoding BLE UART packets. Use Value: 44 DMIPS at 32 MHz ensures sub-millisecond loop response; integrated comparators monitor motor current for stall detection. |
Use Scenario: Safety-critical infusion pump subsystem monitoring flow rate, occlusion pressure, and battery voltage with audible alerts. IC Role / Device Role / Timing Role: Dedicated safety monitor performing independent ADC sampling, LVD threshold checking, and buzzer tone generation. Use Value: Dual LVD levels (14 selectable) enable tiered battery warnings; 0.60 µA STOP mode preserves alert readiness during standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104BCANA#U0 | Same 48-pin HWQFN package, 32 KB flash, 5.5 KB RAM, identical peripheral set and pinout. | Higher flash/RAM supports larger protocol stacks (e.g., Modbus TCP over Ethernet PHY) and extended data logging. | Select when firmware size exceeds 16 KB or additional RAM is needed for multi-threaded operation. |
| R5F105GCGNA#U0 | RL78/G15 family; adds USB 2.0 FS device, 64 KB flash, 6 KB RAM, same 48-pin HWQFN footprint. | Enables direct PC connectivity for configuration and diagnostics; not suitable for cost-sensitive non-USB applications. | Choose only if native USB device functionality is required; otherwise, R5F104GCANA#U0 offers lower BOM cost and power. |
Compared with R5F104BCANA#U0, the R5F104GCANA#U0 trades flash/RAM headroom for lower unit cost and reduced static power, while R5F105GCGNA#U0 introduces USB at the expense of higher active current and licensing complexity-making R5F104GCANA#U0 optimal for pure embedded control without connectivity overhead.
Availability
R5F104GCANA#U0 is available at Aetrix Electronics and suitable for smart building sensors, industrial HMI controllers, and medical monitoring devices requiring stable component supply across long production lifecycles.
Supply support for R5F104GCANA#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 targets cost-sensitive, ultra-low-power embedded control applications-designed to replace legacy 8-bit MCUs while delivering 16-bit performance with integrated analog and communication peripherals.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104GCANA#U0?
The R5F104GCANA#U0 operates up to 32 MHz with a measured performance of 44 DMIPS. This value is derived from the RL78 CPU core's 3-stage pipeline and instruction mix benchmarking per Renesas documentation, and it reflects real-world throughput for compiled C code in typical control applications-not theoretical peak.
Does the R5F104GCANA#U0 support LIN bus communication, and how is it implemented?
Yes, the R5F104GCANA#U0 supports LIN 2.2/ISO 17987-4 via its UART peripheral, which includes dedicated LIN break detection, sync field generation, and checksum calculation. No external transceiver is required for basic node functionality, though a LIN physical layer IC (e.g., TJA1020) is needed for bus termination and ESD protection.
What are the exact flash and RAM capacities of the R5F104GCANA#U0?
The R5F104GCANA#U0 contains 16 KB of code flash memory, 4 KB of data flash memory, and 2.5 KB of on-chip RAM. These values are fixed for this specific part number and confirmed in Renesas' RL78/G14 datasheet revision 3.40, Table 1-1 and Section 1.2.
Is the R5F104GCANA#U0 pin-compatible with other RL78/G14 variants in the same 48-pin HWQFN package?
Yes-the R5F104GCANA#U0 shares identical pinout, electrical characteristics, and peripheral mapping with all other 48-pin HWQFN RL78/G14 devices (e.g., R5F104BCANA#U0, R5F104ECANA#U0), enabling drop-in replacement within the same memory/feature tier without PCB changes.
What low-power modes does the R5F104GCANA#U0 support, and what is the minimum current consumption?
The R5F104GCANA#U0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it consumes 0.60 µA (typical) at VDD = 1.8–5.5 V and TA = –40 to +85°C-verified in Renesas' datasheet Section 1.1 under "Ultra-Low Power Consumption Technology."
R5F104GCANA#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:
- 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:
R5F104GCANA#U0 FAQ
1.How can I place an order for R5F104GCANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104GCANA#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 R5F104GCANA#U0 reliable?
The price and inventory of R5F104GCANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104GCANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F104GCANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104GCANA#U0 transactions.
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4.How is shipping managed for R5F104GCANA#U0?
R5F104GCANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104GCANA#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 R5F104GCANA#U0?
For technical support, including R5F104GCANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104GCANA#U0 requirements.
6.How does Aetrix verify that R5F104GCANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F104GCANA#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 R5F104GCANA#U0 meets industry standards.
7.What is the process for return or replacement of R5F104GCANA#U0?
All R5F104GCANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104GCANA#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 R5F104GCANA#U0 part is unused and in its original packaging.
Return procedure for R5F104GCANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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