Renesas R5F104JGAFA#30
- Part No.:
- R5F104JGAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F104JGAFA#30.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:735
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Product details
Overview
R5F104JGAFA#30 from Renesas is a 52-pin LQFP-0.65mm industrial-grade RL78/G14 16-bit microcontroller with 96 KB flash, 12 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40°C to +105°C. It delivers 44 DMIPS at 32 MHz, integrates 16-bit TAU timers (8 channels), 10-bit ADC (16 channels), UART/SCI/LIN (4 channels), and ultra-low-power HALT/STOP/SNOOZE modes for battery-powered industrial sensing nodes.
For engineers reviewing the R5F104JGAFA#30 datasheet, R5F104JGAFA#30 pinout, R5F104JGAFA#30 application, or R5F104JGAFA#30 equivalent, key selection criteria include its G-grade temperature rating, 52-pin LQFP package with 0.65 mm pitch, integrated RTC with calendar/alarm, background data flash rewriting (BGO), and event-link controller (ELC) for deterministic peripheral triggering in real-time control systems.
Technical Context
The R5F104JGAFA#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). It features on-chip high-accuracy ±1.0% oscillator (1–64 MHz selectable) and dedicated low-speed oscillator for watchdog and RTC operation.
Peripheral integration includes Data Transfer Controller (DTC) with chain transfer, Event Link Controller (ELC) supporting up to 26 event sources, and simplified SPI (CSI), I²C, and UART interfaces-all configurable via peripheral I/O redirection registers (PIOR0/1) without hardware redesign.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and compact code footprint |
| Max Operating Frequency | 32 MHz (44 DMIPS); sufficient for motor control loops and protocol stacks without external clocking |
| Memory Configuration | 96 KB code flash (1 KB block size), 8 KB data flash (1M rewrite cycles), 12 KB RAM; supports secure boot swapping and BGO |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD active); enables multi-year battery life in metering applications |
| Analog Peripherals | 10-bit ADC (16 input channels, internal 1.45 V reference), 8-bit DAC (2 channels, 0–VDD output); suitable for closed-loop sensor signal conditioning |
| Timer Resources | 8× 16-bit Timer Array Unit (TAU) channels, 1× 12-bit interval timer, 1× RTC (99-year calendar, alarm, correction); eliminates need for external timing ICs |
| Serial Interfaces | 4× UART/SCI (LIN-compliant), 4× I²C/simplified I²C, 3–8× CSI (SPI-compatible); enables multi-protocol communication in industrial gateways |
Pinout & Package
Package: 52-pin LQFP, 10 × 10 mm body, 0.65 mm pitch, JEDEC MS-026 compliant (Renesas code PLQP0052JA-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; also serves as timer input and debug trigger clock - enables dual-role pin optimization |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; also timer output and secondary debug trigger - supports synchronous serial + timing in one pin |
| P10–P15 | SCI1/2/3, I²C, CSI, TRDIOx | Multiplexed serial interface pins with flexible assignment via PIOR registers; allows routing to minimize PCB layer count |
| P16/P17 | INTP5/INTP4, TRDIOC0/TRDIOA0 | Dedicated interrupt inputs with configurable edge sensitivity; used for fast fault detection in motor drives |
| P30/P31 | RTC1HZ / SCK00 / TI03 / TO03 | Real-time clock output + SPI clock + timer I/O; consolidates timekeeping and peripheral control functions |
| P121/P122 | X1 / X2 | Crystal oscillator inputs for 32.768 kHz RTC crystal; supports high-accuracy timekeeping without external oscillator |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF capacitor to VSS; critical for stable internal voltage regulation during low-power transitions |
| RESET | Active-low reset input | Accepts external reset assertion; internally tied to POR and LVD circuits for fail-safe startup and brownout recovery |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.60 μA in STOP mode with RTC + LVD active - extends battery life in wireless sensor nodes beyond 5 years |
| Background data flash rewriting (BGO) | Execute code from flash while rewriting data flash; enables firmware updates without system interruption |
| Event Link Controller (ELC) | Hardware-triggered peripheral activation (e.g., ADC start on timer match); removes CPU polling overhead and jitter |
| Peripheral I/O redirection (PIOR) | Dynamic remapping of serial/ADC/timer functions to alternate pins; simplifies layout and avoids signal congestion |
| On-chip security functions | Flash block erase/write prohibition and boot swapping; prevents unauthorized firmware modification in field-deployed devices |
| Integrated LIN physical layer support | UART channel with automatic sync-break detection and checksum generation; reduces external transceiver count in automotive body modules |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
Use Scenario: Brushless DC motor commutation with current sensing and thermal monitoring in HVAC blowers. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, sampling 10-bit ADC at 100 kSPS, generating PWM via TAU timers, and managing LIN diagnostics. Use Value: Integrated 16-bit timers with dead-time insertion and 10-bit ADC with internal reference eliminate external analog front-end components. |
Use Scenario: Residential electricity meter with metrology, tamper detection, and PLC/HPLC communication. IC Role / Device Role / Timing Role: System-on-chip handling pulse counting, RTC-based billing intervals, EEPROM emulation via data flash, and UART-based HPLC modem interface. Use Value: 8 KB data flash with 1M rewrite cycles replaces external EEPROM; RTC with calendar ensures accurate time-of-use tariff calculation. |
| Automotive Body Electronics | Industrial IoT Sensor Node |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN slave functionality. IC Role / Device Role / Timing Role: LIN-compliant UART node with wake-on-LIN, GPIO-controlled drivers, and ADC-based potentiometer feedback. Use Value: On-chip LIN protocol support and 0.60 μA STOP mode enable always-on LIN listening with minimal quiescent current. |
Use Scenario: Battery-powered vibration/temperature node transmitting data via LoRaWAN gateway using UART-to-modem bridge. IC Role / Device Role / Timing Role: Low-power host MCU acquiring sensor data via I²C, timestamping with RTC, buffering in RAM, and driving UART to modem. Use Value: HALT mode (66 μA/MHz) and BGO allow concurrent sensor logging and radio transmission without data loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104JHAFA#30 | Same package and pinout; 128 KB flash, 16 KB RAM, 8 KB data flash - +32 KB code memory, +4 KB RAM | Required for larger protocol stacks (e.g., full TCP/IP + OTA) or complex state machines | Select when firmware size exceeds 96 KB or additional RAM is needed for dynamic buffers |
| R5F104JGAFA#50 | Identical electrical specs and pinout; differs only in packaging - embossed tape (#50) vs. tray (#30) | No functional difference; selected based on SMT line feeder compatibility and volume procurement requirements | Choose #50 for automated high-volume production; #30 for prototyping or low-volume assembly |
Compared with R5F104JGAFA#30, R5F104JHAFA#30 provides headroom for future firmware expansion without PCB change, while R5F104JGAFA#50 offers identical performance in tape-and-reel format for optimized manufacturing throughput.
Availability
R5F104JGAFA#30 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, and automotive body electronics requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R5F104JGAFA#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 industrial, automotive, and enterprise applications.
The RL78/G14 family targets cost-sensitive, ultra-low-power general-purpose embedded systems - balancing performance, integration, and energy efficiency for industrial sensing, metering, and control.
FAQ
What is the maximum operating temperature range for the R5F104JGAFA#30?
The R5F104JGAFA#30 is rated for industrial operation from -40°C to +105°C (G-grade). This specification is validated per Renesas' qualification standards and applies across all operating voltages (1.6–5.5 V) and functional modes, including STOP mode with RTC active.
Does the R5F104JGAFA#30 support in-system programming via its UART interface?
Yes, the R5F104JGAFA#30 supports bootloader-based in-system programming via UART using Renesas' Flash Development Toolkit (FDT) and standard SCI protocol. The on-chip debug function and flash shield window enable secure firmware updates without external programmers.
How many analog input channels does the R5F104JGAFA#30's 10-bit ADC support?
The R5F104JGAFA#30 integrates a 10-bit successive-approximation ADC with 16 analog input channels (ANI0–ANI18, excluding reserved pins). Input voltage range is 0–VDD, and internal 1.45 V reference is available for ratiometric measurements independent of supply variation.
Can the R5F104JGAFA#30 generate PWM signals with complementary outputs and dead-time control?
Yes, the R5F104JGAFA#30's Timer Array Unit (TAU) supports complementary PWM generation with programmable dead-time insertion on designated channels. This capability is implemented in hardware and requires no CPU intervention, ensuring precise timing for motor gate drivers.
Is an external crystal required for the RTC function of the R5F104JGAFA#30?
Yes, the R5F104JGAFA#30 requires a 32.768 kHz crystal connected between pins P121 (X1) and P122 (X2) to operate the RTC in calendar mode with alarm and correction functions. The internal low-speed oscillator is not accurate enough for calendar-grade timekeeping.
R5F104JGAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-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:
- 38
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104JGAFA#30 FAQ
1.How can I place an order for R5F104JGAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104JGAFA#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 R5F104JGAFA#30 reliable?
The price and inventory of R5F104JGAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104JGAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F104JGAFA#30?
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R5F104JGAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104JGAFA#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 R5F104JGAFA#30?
For technical support, including R5F104JGAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104JGAFA#30 requirements.
6.How does Aetrix verify that R5F104JGAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F104JGAFA#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 R5F104JGAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F104JGAFA#30?
All R5F104JGAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104JGAFA#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 R5F104JGAFA#30 part is unused and in its original packaging.
Return procedure for R5F104JGAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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