Renesas R5F104PJAFA#30
- Part No.:
- R5F104PJAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F104PJAFA#30.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:4,966
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Product details
Overview
R5F104PJAFA#30 from Renesas is a 100-pin LQFP-0.65 mm pitch, industrial-grade (G: −40 to +105°C) RL78/G14 16-bit MCU with 256 KB flash, 8 KB data flash, 24 KB RAM, 12-bit ADC (16 ch), and integrated RTC, LVD, and low-power STOP/HALT/SNOOZE modes - deployed in motor control, sensor hubs, and industrial HMI systems.
For engineers reviewing the R5F104PJAFA#30 datasheet, R5F104PJAFA#30 pinout, R5F104PJAFA#30 application, or R5F104PJAFA#30 equivalent, key selection criteria include its 256 KB code flash density, 100-pin LQFP package with 0.65 mm pitch, 24 KB RAM allocation for real-time task stacks, and support for LIN-bus UART channels in industrial temperature environments.
Technical Context
The R5F104PJAFA#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs min @ 32 MHz). It integrates a Data Transfer Controller (DTC) supporting chain transfer and background operation during data flash rewriting.
Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, Real-Time Clock with calendar and alarm, and dual UART/LIN interfaces - all managed via Event Link Controller (ELC) for hardware-triggered event routing without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/accumulate instructions |
| Flash Memory | 256 KB code flash (block size 1 KB); supports self-programming with boot swapping |
| Data Flash | 8 KB data flash with background operation (BGO) and 1M rewrite cycles (TYP.) |
| RAM | 24 KB on-chip RAM; includes dedicated areas for flash library use (start address F9F00H) |
| ADC | 12-bit A/D converter with 16 analog input channels and internal 1.45 V reference |
| Operating Temp | −40°C to +105°C (industrial G-grade), enabling deployment in extended-temperature industrial controls |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE - optimized for battery-backed sensor nodes |
Pinout & Package
Package: 100-pin LQFP, 14 × 20 mm, 0.65 mm pitch, plastic body (Renesas code PLQP0100JC-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P01 | ANI17/TI00/TxD1 & ANI16/TO00/RxD1 | Dual-function pins supporting analog input, timer input, and UART channel 1 I/O |
| P10–P15 | SCK11/SI11/SO11 & SCK20/SCL20/TRDIOB0 | Configurable serial interface group: CSI (SPI-like), I²C, and simplified I²C with bus arbitration |
| P121–P122 | X1/X2 crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC accuracy and low-power timekeeping |
| P137 | INTP0 | Primary external interrupt pin with programmable edge sensitivity for wake-up or event capture |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to POR and LVD reset sources |
| VDD / VSS | Power supply / ground | Single 1.6–5.5 V supply; requires decoupling per Renesas layout guidelines (e.g., REGC capacitor) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.60 μA typical current draw enables >10-year battery life in RTC-only monitoring applications |
| Background data flash rewrite | Enables firmware updates or parameter storage without halting program execution (BGO) |
| Event Link Controller (ELC) | Hardware-based peripheral linking eliminates CPU overhead for time-critical signal chaining (e.g., ADC→DMA→UART) |
| LIN-bus compatible UART | Integrated LIN protocol support simplifies automotive body electronics integration without external transceivers |
| On-chip voltage detector (LVD) | 14-level selectable reset/interrupt threshold ensures reliable brown-out detection across varying supply conditions |
Applications
| Industrial Motor Control | Smart Sensor Hub |
|---|---|
|
Use Scenario: Closed-loop BLDC motor control in HVAC blowers with thermal protection and speed feedback. IC Role / Device Role / Timing Role: Main controller executing FOC algorithms, managing PWM outputs, reading hall sensors/ADC, and communicating via LIN. Use Value: 24 KB RAM accommodates real-time control stacks; 256 KB flash stores multiple motor profiles and safety firmware. |
Use Scenario: Multi-sensor environmental node (temp/humidity/pressure) with local processing and RS-485 gateway. IC Role / Device Role / Timing Role: Central aggregator with 16-channel ADC, RTC timestamping, and dual UART for sensor and host communication. Use Value: BGO data flash allows over-the-air calibration updates while maintaining continuous sensor logging. |
| Industrial HMI Panel | Energy Metering Interface |
|
Use Scenario: Touch-enabled front panel with LED indicators, buzzer alerts, and button scanning for PLC operator stations. IC Role / Device Role / Timing Role: UI processor handling capacitive touch, driving buzzer/PCLBUZ, managing display SPI interface, and responding to interrupts. Use Value: On-chip key interrupt and PCLBUZ peripherals reduce external component count and PCB footprint. |
Use Scenario: Pulse-counting and tariff-switching interface between utility meter and building management system. IC Role / Device Role / Timing Role: Time-critical pulse capture via TI00/TI01, RTC calendar tracking, and isolated UART communication. Use Value: −40°C to +105°C rating ensures reliability in outdoor meter enclosures exposed to solar heating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104PJGFA#30 | G-grade (−40 to +105°C) same flash/RAM/peripherals, but LQFP-0.65 mm pitch with different packaging spec (#30 → #30 same tray) | Identical functional scope; differs only in Renesas internal traceability marking | Select when full industrial temp compliance and identical pinout are required with alternate lot traceability |
| R5F104PLAFA#30 | Same 100-pin LQFP-0.65 mm package, but 384 KB flash and 32 KB RAM - higher memory variant in same family | Required where larger firmware image or deeper data buffering is needed (e.g., OTA update staging) | Choose for future-proofing or applications needing >256 KB code space without PCB redesign |
Compared with R5F104PJAFA#30, R5F104PJGFA#30 offers identical electrical and thermal specs with minor manufacturing traceability variation, while R5F104PLAFA#30 provides scalable memory headroom at no pinout or layout cost - enabling seamless migration paths within the RL78/G14 platform.
Availability
R5F104PJAFA#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor hubs, energy metering interfaces, and HMI panels requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F104PJAFA#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, and power management solutions for industrial, automotive, and IoT markets.
The RL78/G14 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, thermally demanding industrial applications - balancing performance, peripheral richness, and energy efficiency.
FAQ
What is the maximum operating frequency and core architecture of the R5F104PJAFA#30?
The R5F104PJAFA#30 features the RL78 16-bit CISC core with a 3-stage pipeline and supports up to 32 MHz operation. Its minimum instruction execution time is 0.03125 µs at 32 MHz using the high-speed on-chip oscillator, enabling deterministic real-time response in control loops.
Does the R5F104PJAFA#30 support LIN bus communication, and how is it implemented?
Yes, the R5F104PJAFA#30 supports LIN bus communication through its UART peripherals, which include LIN-mode functionality per ISO 9141-2 and SAE J2602 standards. This is implemented in hardware without external transceivers, using dedicated LIN break-detection and sync-field generation logic.
What is the data flash endurance and voltage range for reprogramming the R5F104PJAFA#30?
The R5F104PJAFA#30 includes 8 KB of data flash rated for 1,000,000 write/erase cycles (typical) and supports reprogramming across the full VDD range of 1.8 V to 5.5 V - enabling robust field updates even under brown-out conditions.
How does the R5F104PJAFA#30 manage ultra-low-power operation in STOP mode?
In STOP mode, the R5F104PJAFA#30 draws just 0.60 µA (typical) while retaining RTC operation and LVD monitoring. The core and most peripherals are halted, but wakeup is supported via INT0–INTP9, RTC alarm, or LVD interrupt - critical for battery-powered industrial monitors.
Is the R5F104PJAFA#30 pin-compatible with other RL78/G14 variants in the same package?
Yes, the R5F104PJAFA#30 is fully pin-compatible with all other RL78/G14 devices in the 100-pin LQFP-0.65 mm package (e.g., R5F104PLAFA#30, R5F104PJAFA#30, R5F104PJGFA#30), sharing identical pin functions, power domains, and layout requirements - enabling drop-in memory upgrades.
R5F104PJAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-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:
- 82
- 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 20x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104PJAFA#30 FAQ
1.How can I place an order for R5F104PJAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104PJAFA#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 R5F104PJAFA#30 reliable?
The price and inventory of R5F104PJAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104PJAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F104PJAFA#30?
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R5F104PJAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104PJAFA#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 R5F104PJAFA#30?
For technical support, including R5F104PJAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104PJAFA#30 requirements.
6.How does Aetrix verify that R5F104PJAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F104PJAFA#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 R5F104PJAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F104PJAFA#30?
All R5F104PJAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104PJAFA#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 R5F104PJAFA#30 part is unused and in its original packaging.
Return procedure for R5F104PJAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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