Renesas R5F104JJDFA#V0
- Part No.:
- R5F104JJDFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F104JJDFA#V0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F104JJDFA#V0 from Renesas is a 52-pin LQFP-0.65mm industrial-grade RL78/G14 16-bit microcontroller with 256 KB flash, 20 KB RAM, 10-bit ADC (20 channels), and real-time clock-designed for low-power sensor nodes and motor control in factory automation systems.
For engineers reviewing the R5F104JJDFA#V0 datasheet, R5F104JJDFA#V0 pinout, R5F104JJDFA#V0 application, or R5F104JJDFA#V0 equivalent, key selection criteria include its 1.6–5.5 V operation range, 66 μA/MHz active current, 0.60 μA RTC+LVD stop mode, and integrated UART/LIN, I²C, and SPI interfaces for embedded control.
Technical Context
The R5F104JJDFA#V0 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), and includes multiply/divide/accumulate instructions. Its memory subsystem integrates 256 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), and 20 KB SRAM.
Peripheral integration includes Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, calendar RTC with alarm/correction, watchdog timer, and Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Operating Voltage | 1.6–5.5 V - enables direct interface with 1.8/2.5/3.3 V logic and battery-powered operation |
| Flash Memory | 256 KB code flash + 8 KB data flash - supports background rewriting and boot swap for robust firmware updates |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC + LVD - extends battery life in always-on sensing |
| Analog Peripherals | 10-bit ADC (20 ch, 1.45 V ref), 8-bit DAC (2 ch), 2-channel comparator - enables closed-loop analog signal conditioning |
| Communication Interfaces | 3× UART/LIN, 4–10× I²C, 3–8× CSI (SPI-compatible) - provides flexible multi-protocol connectivity for industrial buses |
| Package & Pin Count | 52-pin LQFP, 0.65 mm pitch - standard surface-mount footprint compatible with automated assembly |
Pinout & Package
Package: 52-pin plastic LQFP (10 × 10 mm, 0.65 mm pitch), industrial temperature grade (−40°C to +85°C), lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; input capture timer channel; debug trigger source |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; secondary debug trigger |
| P10–P17 | SPI/I²C/UART multiplexed pins | Configurable serial interfaces support concurrent LIN master/slave and sensor I²C busses |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM | Eight analog inputs with dedicated reference voltage terminals for precision ADC measurements |
| P30–P31 | INTP3 / RTC1HZ / TI03 / TO03 | Dedicated real-time clock interrupt and high-resolution timer I/O for time-critical control loops |
| P121–P124 | X1 / X2 / XT1 / XT2 | Crystal oscillator inputs supporting 32.768 kHz RTC and up to 32 MHz main clock |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external debounced pushbutton or supervisor IC |
| VDD / VSS | Power supply / ground | Single 1.6–5.5 V supply simplifies power design; separate analog/digital ground not required |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.60 μA with RTC and LVD active - enables decade-scale coin-cell operation in wireless sensors |
| Data flash background operation | Execute code from flash while rewriting 8 KB data flash - eliminates firmware update stalls |
| Event Link Controller (ELC) | Hardware-peripheral chaining without CPU - reduces interrupt latency and firmware overhead in motor control |
| On-chip debug with SWD | Full JTAG/SWD debug via P40/TOOL0 pins - no external debugger header needed on PCB |
| Integrated LIN transceiver support | UART with automatic LIN break detection and sync field generation - meets ISO 17987-4 for automotive body electronics |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed regulation of BLDC motors in HVAC blowers and conveyor drives. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, driving gate drivers via PWM, and monitoring current/voltage feedback. Use Value: TAU timers deliver precise 10 ns resolution PWM; 10-bit ADC samples dual shunt currents at 1 MS/s; STOP mode enables rapid fault shutdown with state retention. | Use Scenario: Battery-powered environmental monitor logging temperature, humidity, and CO₂ in warehouse zones. IC Role / Device Role / Timing Role: System-on-chip managing sensor I²C reads, RTC timestamping, low-power BLE wakeup, and flash logging. Use Value: 0.60 μA STOP mode extends 2000 mAh battery life to >10 years; data flash stores 100k+ timestamped records with wear leveling. |
| Factory Automation I/O Module | Home Appliance Control |
Use Scenario: DIN-rail mounted digital I/O module interfacing PLCs with solenoids, relays, and limit switches. IC Role / Device Role / Timing Role: Real-time I/O coordinator with deterministic response to Modbus RTU over UART and local GPIO scanning. Use Value: ELC links UART RX interrupts directly to GPIO toggle - achieves <10 μs I/O reaction time; 52-pin LQFP fits compact industrial enclosures. | Use Scenario: Washing machine main control board managing water valves, pump, heater, and user interface. IC Role / Device Role / Timing Role: Safety-certified MCU handling motor commutation, NTC temperature monitoring, and buzzer feedback. Use Value: On-chip LVD detects brown-out before EEPROM corruption; 8-bit DAC drives analog front-panel LED brightness; LIN interface controls display module. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104JHDFA#V0 | 128 KB flash, 16 KB RAM, same 52-pin LQFP package and peripheral set | Lower memory capacity suits simpler control tasks without data logging or complex UI | Select when firmware size <100 KB and BOM cost reduction is prioritized over future feature scalability |
| R5F104JJDFB#V0 | Same 256 KB/20 KB spec but in 48-pin LFQFP (7×7 mm, 0.5 mm pitch) package | Smaller footprint and lower pin count reduce PCB area and routing complexity | Choose for space-constrained designs where 4 fewer GPIOs and no VCOUT/SSI00 are acceptable |
Compared with R5F104JHDFA#V0 and R5F104JJDFB#V0, the R5F104JJDFA#V0 offers optimal balance of memory headroom, full peripheral access, and industrial LQFP manufacturability-making it ideal for next-generation programmable logic controllers requiring field-upgradable firmware and multi-sensor fusion.
Availability
R5F104JJDFA#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, factory I/O modules, and home appliance control requiring stable component supply across extended product lifecycles.
Supply support for R5F104JJDFA#V0 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 delivering 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 industrial and consumer equipment requiring long battery life, functional safety compliance, and rich analog/motor control peripherals.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F104JJDFA#V0?
The R5F104JJDFA#V0 operates up to 32 MHz with a typical active current of 66 μA per MHz at VDD = 3.3 V and TA = 25°C. At full speed, this yields ~2.1 mA total active current. Its ultra-low-power STOP mode draws only 0.60 μA with RTC and LVD enabled, verified per R01DS0053EJ0340 datasheet Section 1.1.
Does the R5F104JJDFA#V0 support hardware-based LIN communication without external transceivers?
Yes, the R5F104JJDFA#V0 integrates UART peripherals with built-in LIN protocol support-including automatic break detection, sync field generation, and checksum calculation-per ISO 17987-4. It requires only an external LIN transceiver (e.g., TJA1020) on the bus side; no additional protocol firmware is needed for basic LIN master/slave operation.
How many analog input channels does the R5F104JJDFA#V0 provide, and what is their resolution and reference configuration?
The R5F104JJDFA#V0 features a 10-bit successive-approximation ADC with up to 20 analog input channels (ANI0–ANI19). It supports internal 1.45 V reference voltage and external references via AVREFP/AVREFM pins. Input range is 0 to VDD, with sampling rates up to 1 MS/s under optimal conditions, as specified in Section 1.1 "A/D Converter" of the datasheet.
What debug interface does the R5F104JJDFA#V0 use, and which pins are required?
The R5F104JJDFA#V0 uses Renesas' on-chip debug interface accessible via Serial Wire Debug (SWD) using pins P40 (TOOL0) and P31 (TRJIO0), plus VDD and VSS. No external debug header is required-debugging and programming are supported through these two dedicated pins, enabling minimal PCB footprint for development and field firmware updates.
Is the R5F104JJDFA#V0 pin-compatible with other RL78/G14 variants in the same 52-pin LQFP package?
Yes, all RL78/G14 devices in the 52-pin LQFP-0.65mm package-including R5F104JCAFA#V0 through R5F104JJDFA#V0-share identical pinouts and electrical characteristics. Memory size (16–256 KB flash) and peripheral enablement (e.g., VCOUT, SSI) vary by part number, but PCB layout and signal routing remain fully interchangeable across the family.
R5F104JJDFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- 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:
- 38
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 24K 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:
R5F104JJDFA#V0 FAQ
1.How can I place an order for R5F104JJDFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104JJDFA#V0 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 R5F104JJDFA#V0 reliable?
The price and inventory of R5F104JJDFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104JJDFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F104JJDFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104JJDFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104JJDFA#V0?
R5F104JJDFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104JJDFA#V0 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 R5F104JJDFA#V0?
For technical support, including R5F104JJDFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104JJDFA#V0 requirements.
6.How does Aetrix verify that R5F104JJDFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104JJDFA#V0 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 R5F104JJDFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F104JJDFA#V0?
All R5F104JJDFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104JJDFA#V0, 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 R5F104JJDFA#V0 part is unused and in its original packaging.
Return procedure for R5F104JJDFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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