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Renesas R5F104JFAFA#V0
- Part No.:
- R5F104JFAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F104JFAFA#V0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,599
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Product details
Overview
R5F104JFAFA#V0 from Renesas is a 52-pin LQFP-0.65 mm pitch, industrial-grade (G) RL78/G14 16-bit MCU with 256 KB flash, 8 KB data flash, 20 KB RAM, and operation up to 32 MHz delivering 44 DMIPS. It integrates RTC, 10-bit ADC (16 channels), UART/LIN, I²C, SPI, 16-bit timers, and ultra-low-power modes (0.60 μA in STOP with RTC+LVD).
For engineers reviewing the R5F104JFAFA#V0 datasheet, R5F104JFAFA#V0 pinout, R5F104JFAFA#V0 application, or R5F104JFAFA#V0 equivalent, key selection criteria include its -40°C to +105°C industrial temperature rating, integrated LIN-capable UARTs for automotive body electronics, hardware DTC/ELC for deterministic peripheral chaining, and flash self-programming with boot swapping.
Technical Context
The R5F104JFAFA#V0 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 timer.
Peripheral integration includes Event Link Controller (ELC) enabling direct hardware-triggered peripheral activation without CPU intervention, and Data Transfer Controller (DTC) supporting block, repeat, and chain transfers-critical for real-time sensor data acquisition and motor control loop timing determinism.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Max Clock | 32 MHz (44 DMIPS); supports 1–64 MHz on-chip oscillator with ±1.0% accuracy over -40°C to +85°C |
| Memory | 256 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), 20 KB SRAM |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD active), SNOOZE for low-latency wake-up |
| Analog Peripherals | 10-bit ADC (16 input channels, internal 1.45 V reference, temperature sensor), 8-bit DAC (2 channels, 0–VDD output) |
| Serial Interfaces | 3× UART/LIN, 4–10× I²C/simplified I²C, 3–8× CSI (SPI-compatible), all configurable via ELC |
| Timers & RTC | 8–12× 16-bit timers (TAU, RJ, RD, RG), 12-bit interval timer, calendar RTC (99-year range, alarm, correction) |
Pinout & Package
Package: 52-pin LQFP, 10 × 10 mm, 0.65 mm pitch, lead-free, RoHS-compliant. Thermal pad not present. Compatible with standard reflow profiles for industrial applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121/X1 | Crystal input | Connects to 32.768 kHz crystal for RTC; requires external load capacitors |
| P122/X2/EXCLK | Crystal output / external clock input | Drives crystal; alternatively accepts external clock up to 20 MHz for precise timing source |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; debounced externally recommended for noise immunity |
| VDD / VSS | Power supply / ground | Single 1.6–5.5 V supply; separate analog/digital ground pins not provided-requires PCB star grounding |
| P14/RxD2/SI20/SDA20/TRDIOD0/(SCLA0) | Multi-function I/O | Configurable as UART2 RX, SPI2 MISO, I²C2 data, or slave address line-selected via PIOR register |
| P13/TxD2/SO20/TRDIOA1/IVCMP1 | Multi-function I/O | Configurable as UART2 TX, SPI2 MOSI, or comparator input-enables shared peripheral routing |
| P30/INTP3/RTC1HZ/SCK00/SCL00/TRJO0 | Multi-function I/O | Provides 1 Hz RTC output, I²C0 clock, or JTAG trace clock-supports debug and timekeeping on one pin |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA current draw while maintaining RTC operation and LVD monitoring-enables multi-year battery life in metering |
| Hardware DTC with chain transfer | Enables autonomous memory-to-peripheral data movement without CPU involvement-reduces interrupt latency in sensor fusion |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 event sources to peripherals-eliminates software overhead in real-time control loops |
| Flash self-programming with boot swap | Supports safe firmware updates by validating new image in alternate bank before atomic swap-prevents bricking during field upgrades |
| LIN-capable UART | UART modules support LIN 2.2 protocol including sync-break detection and checksum generation-meets automotive body control requirements |
Applications
| Automotive Body Control | Industrial Sensor Node |
|---|---|
Use Scenario: Central body controller managing door locks, window lifts, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing LIN communication stack, PWM motor control, and secure EEPROM emulation via data flash. Use Value: Integrated LIN UARTs reduce BOM cost vs. external transceivers; STOP mode enables <1 µA sleep current for always-on security monitoring. | Use Scenario: Wireless environmental sensor node measuring temperature, humidity, and CO₂ in HVAC ducts. IC Role / Device Role / Timing Role: Sensor aggregator with 10-bit ADC sampling multiple analog sensors, storing calibrated data in data flash, and transmitting via UART to gateway. Use Value: 0.60 μA STOP mode extends 2xAA battery life beyond 5 years; internal temperature sensor enables on-chip calibration compensation. |
| Smart Metering | Home Appliance Control |
Use Scenario: Electricity meter with tamper detection, pulse counting, and secure metrology data logging. IC Role / Device Role / Timing Role: Real-time metrology processor running anti-tamper algorithms, RTC-based billing intervals, and encrypted flash storage. Use Value: Calendar RTC with 99-year range ensures accurate time-of-use billing; flash shield window prevents unauthorized firmware access. | Use Scenario: Washing machine main control board managing motor drive, water valves, and user interface. IC Role / Device Role / Timing Role: System orchestrator coordinating PWM motor control, relay drivers, touch sensing, and buzzer feedback via PCLBUZ. Use Value: Hardware DTC offloads ADC sampling and PWM update tasks from CPU-ensures deterministic 10 ms motor commutation timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104JGAFA#V0 | Same package and pinout; 192 KB flash, 20 KB RAM, identical peripherals and power specs | Suitable where firmware size <192 KB and cost sensitivity outweighs future scalability | Select when flash headroom is not required and BOM cost optimization is critical |
| R5F104JHAFA#V0 | Same package and pinout; 128 KB flash, 16 KB RAM, otherwise identical feature set and electrical specs | Targeted at cost-constrained consumer appliances with simpler firmware and no RTC/data logging needs | Choose for high-volume production where reduced memory meets functional requirements and lowers unit cost |
Compared with R5F104JGAFA#V0 and R5F104JHAFA#V0, the R5F104JFAFA#V0 provides 64 KB more flash and 4 KB more RAM-enabling larger RTOS deployments, secure boot partitions, and extended data logging buffers without changing PCB layout or firmware driver abstraction layer.
Availability
R5F104JFAFA#V0 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart metering, and home appliance control requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R5F104JFAFA#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G14 family delivers true low-power performance (66 μA/MHz, 0.60 μA STOP) for general-purpose embedded applications demanding high integration, robustness, and long-term supply assurance in industrial and automotive environments.
FAQ
What is the operating temperature range for the R5F104JFAFA#V0?
The R5F104JFAFA#V0 is rated for industrial applications with an operating ambient temperature range of -40°C to +105°C (G-grade). This specification is validated per Renesas' qualification standards and applies across full voltage (1.6–5.5 V) and frequency (up to 32 MHz) operation-making it suitable for under-hood automotive and factory-floor industrial use cases where thermal resilience is critical. The R5F104JFAFA#V0 maintains all specified timing, analog accuracy, and flash endurance parameters within this range.
Does the R5F104JFAFA#V0 support LIN bus communication?
Yes, the R5F104JFAFA#V0 supports LIN 2.2 communication through its integrated UART modules. Each UART channel can be configured for LIN operation-including automatic sync-break detection, checksum generation (classic and enhanced), and slave node response handling-without external transceivers. The R5F104JFAFA#V0's hardware LIN support reduces firmware complexity and improves timing determinism compared to bit-banged implementations, and is validated in Renesas' RL78/G14 LIN software libraries.
How much data flash memory does the R5F104JFAFA#V0 include, and what is its endurance?
The R5F104JFAFA#V0 includes 8 KB of on-chip data flash memory with a typical endurance of 1,000,000 write/erase cycles at VDD = 1.8–5.5 V. This data flash supports background operation (BGO), allowing program execution from code flash while rewriting data flash-enabling seamless firmware parameter updates or data logging without system interruption. The R5F104JFAFA#V0 also provides flash shield window protection to prevent unauthorized access to sensitive configuration data.
What debug interfaces are supported by the R5F104JFAFA#V0?
The R5F104JFAFA#V0 supports on-chip debugging via the single-wire debug interface using the TOOL0 (pin P40) and TRJIO0 (pin P01/P17/P31) signals, compatible with Renesas E2 emulator and CS+ IDE. It includes full breakpoint, watchpoint, and trace capabilities, plus flash programming and verification functions. The R5F104JFAFA#V0 does not support JTAG; its debug architecture is optimized for minimal pin count and low-cost production programming-making it ideal for space-constrained industrial and consumer designs.
Can the R5F104JFAFA#V0 operate from a single 1.8 V supply?
Yes, the R5F104JFAFA#V0 operates from a single supply voltage ranging from 1.6 V to 5.5 V, fully supporting 1.8 V operation across all specified peripherals, clock speeds (up to 16 MHz at 1.8 V), and temperature ranges. At 1.8 V, the R5F104JFAFA#V0 maintains full functionality of its 10-bit ADC (with internal 1.45 V reference), RTC, UART, I²C, and timers-enabling compatibility with 1.8 V logic families and energy-harvesting power sources without level-shifting circuitry.
R5F104JFAFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 12K 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:
R5F104JFAFA#V0 FAQ
1.How can I place an order for R5F104JFAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104JFAFA#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 R5F104JFAFA#V0 reliable?
The price and inventory of R5F104JFAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104JFAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F104JFAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104JFAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104JFAFA#V0?
R5F104JFAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104JFAFA#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 R5F104JFAFA#V0?
For technical support, including R5F104JFAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104JFAFA#V0 requirements.
6.How does Aetrix verify that R5F104JFAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104JFAFA#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 R5F104JFAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F104JFAFA#V0?
All R5F104JFAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104JFAFA#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 R5F104JFAFA#V0 part is unused and in its original packaging.
Return procedure for R5F104JFAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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