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Renesas R5F104LJAFP#30
- Part No.:
- R5F104LJAFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LJAFP#30.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,404
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Product details
Overview
R5F104LJAFP#30 from Renesas is a 64-pin LQFP-0.65mm-pitch 16-bit RL78/G14 microcontroller with 192 KB flash, 8 KB data flash, and 20 KB RAM, operating from 1.6–5.5 V at -40°C to +85°C (industrial-grade D-temp), delivering 44 DMIPS at 32 MHz for low-power motor control and sensor interface applications.
For engineers reviewing the R5F104LJAFP#30 datasheet, R5F104LJAFP#30 pinout, R5F104LJAFP#30 application, or R5F104LJAFP#30 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternatives, and supply-ready availability details - all specific to the exact R5F104LJAFP#30 variant.
Technical Context
The R5F104LJAFP#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), and includes multiply/divide/accumulate instructions with 1 MB address space.
It integrates dual-clock domains: a high-accuracy ±1.0% on-chip oscillator (selectable 1–64 MHz) and independent subsystem clock (e.g., 32.768 kHz RTC), enabling simultaneous operation of real-time clock, low-voltage detector (14-level LVD), and background data flash rewriting (BGO) without halting code execution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing-critical firmware in motor commutation and sensor sampling loops. |
| Max Clock Speed | 32 MHz (44 DMIPS); sufficient for real-time PID control with ≤31.25 ns instruction resolution at full speed. |
| Flash Memory | 192 KB code flash + 8 KB data flash; supports secure block erase prohibition and self-programming with boot swapping. |
| RAM | 20 KB on-chip RAM; accommodates stack, heap, and real-time buffers for multi-channel ADC + UART + timer-driven tasks. |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC+LVD only; enables battery-powered operation >1 year on coin cell. |
| Analog Peripherals | 10-bit 20-channel ADC (VDD-referenced), two 8-bit DAC outputs (0–VDD), two comparators with window mode; supports closed-loop analog sensing. |
| Timers & Interfaces | 12× 16-bit timers (including TAU, RJ, RD, RG), 1× RTC with calendar/alarm, 3× UART (LIN-capable), 4× I²C, up to 8× CSI/SPI channels. |
Pinout & Package
Package: 64-pin LQFP, 12 × 12 mm, 0.65 mm pitch (Renesas code PLQP0064JA-A), industrial temperature grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit for debug or host communication; also serves as timer input and trace clock source. |
| P01 | RxD1 / TO00 / TRGCLKB | UART receive with hardware auto-baud detection; 16-bit timer output for PWM generation; trace clock backup. |
| P10–P17 | CSI/I²C/UART/SO/SI/SCL/SDA/TRDIOx | Multi-function serial interface pins supporting concurrent SPI slave/master, I²C master/slave, and LIN transceiver modes. |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM / ANO0 / ANO1 | Dedicated analog input bank with differential reference support; enables 8-channel simultaneous sampling for motor phase current sensing. |
| P30–P31 | INTP3 / RTC1HZ / SCK00 / TI03 / TO03 | RTC interrupt output (1 Hz) and dedicated timer I/O for encoder quadrature decoding or pulse-width measurement. |
| P60–P61 | SCLA0 / SDAA0 | Dedicated I²C bus pins with internal pull-ups; used for EEPROM or sensor communication without GPIO resource contention. |
| P121–P122 | X1 / X2 / EXCLK | Crystal oscillator inputs for precise 32.768 kHz RTC timing or external 1–20 MHz clock injection for system synchronization. |
| RESET / REGC / VDD / VSS | Reset / Regulator Cap / Power / Ground | REGC requires 0.47–1 µF capacitor to VSS for stable internal voltage regulation; RESET is Schmitt-triggered with POR/LVD integration. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Reduces active current to 66 μA/MHz and standby to 0.60 μA - critical for energy harvesting and battery-backed systems. |
| Background Data Flash Operation (BGO) | Enables firmware updates or parameter logging while executing application code from main flash - no runtime interruption required. |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 peripheral events (e.g., ADC EOC → DMA trigger → timer reload) eliminates CPU polling overhead. |
| On-chip Debug with Flash Shield Window | Secure debugging via single-wire SWD interface with configurable memory protection - prevents unauthorized flash readout during development. |
| Peripheral I/O Redirection (PIOR) | Runtime remapping of serial/ADC/timer functions to alternate pins - simplifies PCB layout and enables pin-compatible firmware reuse across variants. |
Applications
| Motor Control | Sensor Hub |
|---|---|
|
Use Scenario: Brushless DC motor drive in HVAC blowers with hall-effect feedback and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing 3-phase PWM via TAU timers, sampling current/voltage via 10-bit ADC, and communicating status via UART/LIN. Use Value: 44 DMIPS + 20 KB RAM enables real-time vector math; 0.60 μA STOP mode extends battery life during idle cycles. |
Use Scenario: Multi-sensor environmental node (temp/humidity/pressure/light) with local data fusion and wireless gateway interface. IC Role / Device Role / Timing Role: Central sensor aggregator using I²C/SPI to read sensors, 10-bit ADC for analog transducers, RTC for timestamping, and UART for BLE module handoff. Use Value: Integrated 8 KB data flash stores calibration coefficients; BGO allows over-the-air parameter updates without interrupting sensor reads. |
| Industrial HMI | Smart Metering |
|
Use Scenario: Touch-enabled panel with LED backlight control, button scanning, and RS-485 Modbus communication. IC Role / Device Role / Timing Role: UI processor handling capacitive touch scan via comparator + ADC, driving PWM dimming for LEDs, and managing Modbus RTU over UART with hardware parity. Use Value: Dual DAC outputs enable smooth analog backlight control; 14-level LVD ensures reliable brown-out reset during line fluctuations. |
Use Scenario: Electricity meter with metrology IC interface, tamper detection, and secure firmware update capability. IC Role / Device Role / Timing Role: Secure host MCU interfacing with isolated metrology chip via SPI, monitoring tamper switches via N-ch open-drain I/O, and validating firmware signatures in flash shield window. Use Value: Flash security features prevent unauthorized reprogramming; 192 KB code flash accommodates dual-bank OTA update logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LHAFP#30 | Same 64-pin LQFP package, but 128 KB flash / 16 KB RAM / 8 KB data flash; lower memory footprint. | Suitable for simpler control firmware without complex data logging or multi-protocol stacks. | Select when application code size remains under 128 KB and BGO usage is minimal. |
| R5F104LKAFP#30 | Same 64-pin LQFP, 256 KB flash / 24 KB RAM / 8 KB data flash; higher memory and SRAM capacity. | Required for applications needing larger OTA images, extended data buffering, or multiple concurrent communication stacks. | Choose when future firmware expansion headroom or real-time FFT-based analytics are needed. |
Compared with R5F104LHAFP#30, the R5F104LJAFP#30 provides 64 KB more flash and 4 KB more RAM for enhanced feature sets, while R5F104LKAFP#30 adds further headroom for complex field-upgradeable systems - all sharing identical pinout, peripheral set, and industrial temperature rating.
Availability
R5F104LJAFP#30 is available at Aetrix Electronics and suitable for industrial motor drives, smart sensor nodes, HMI panels, and utility metering systems requiring stable component supply across long production lifecycles.
Supply support for R5F104LJAFP#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 solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, energy-constrained applications requiring rich analog integration and robust real-time control - including appliance, building automation, and portable instrumentation.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104LJAFP#30?
The R5F104LJAFP#30 operates at up to 32 MHz, delivering 44 DMIPS of processing performance. Its RL78 CPU core achieves a minimum instruction execution time of 0.03125 µs in high-speed mode, enabling deterministic real-time response for motor control and sensor sampling loops. The core supports multiply/divide/accumulate instructions essential for digital signal processing tasks within the R5F104LJAFP#30's embedded applications.
Does the R5F104LJAFP#30 support in-system programming and secure firmware updates?
Yes, the R5F104LJAFP#30 supports full in-system programming via its on-chip debug interface and includes flash shield window functionality to restrict access to protected memory regions during programming. It enables secure firmware updates using boot swapping and background data flash rewriting (BGO), allowing the R5F104LJAFP#30 to maintain operational continuity while updating non-volatile parameters or application code.
What analog peripherals are integrated into the R5F104LJAFP#30 and how are they configured?
The R5F104LJAFP#30 integrates a 10-bit, 20-channel ADC with internal 1.45 V reference and temperature sensor, two 8-bit DACs with 0–VDD output range, and up to two comparators supporting high-speed, low-speed, and window modes. Analog inputs are mapped to P20–P27 pins with selectable AVREFP/AVREFM references, and DAC outputs are available on dedicated pins - all configurable via register settings without external components in the R5F104LJAFP#30.
How does the R5F104LJAFP#30 manage power in battery-operated applications?
The R5F104LJAFP#30 achieves ultra-low power operation with 66 μA/MHz active current and just 0.60 μA in STOP mode (RTC + LVD active). It supports three low-power modes - HALT, STOP, and SNOOZE - each with configurable peripheral retention. The on-chip voltage detector (14-level LVD) provides programmable brown-out reset, and the high-accuracy ±1.0% on-chip oscillator eliminates need for external crystals in many low-power use cases - extending battery life significantly in the R5F104LJAFP#30.
What communication interfaces does the R5F104LJAFP#30 provide and are they pin-multiplexed?
The R5F104LJAFP#30 provides up to 3 UART channels (one LIN-capable), 4–10 I²C channels, and 3–8 CSI/SPI channels - all implemented on shared pins with flexible peripheral I/O redirection (PIOR). This allows dynamic assignment of serial functions to alternate pins at runtime, avoiding conflicts in dense PCB layouts. Dedicated SCLA0/SDAA0 pins ensure reliable I²C bus operation without GPIO contention in the R5F104LJAFP#30.
R5F104LJAFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 48
- 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:
R5F104LJAFP#30 FAQ
1.How can I place an order for R5F104LJAFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LJAFP#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 R5F104LJAFP#30 reliable?
The price and inventory of R5F104LJAFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LJAFP#30 is usually 5 days.
3.What payment methods are accepted for R5F104LJAFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LJAFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LJAFP#30?
R5F104LJAFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LJAFP#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 R5F104LJAFP#30?
For technical support, including R5F104LJAFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LJAFP#30 requirements.
6.How does Aetrix verify that R5F104LJAFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F104LJAFP#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 R5F104LJAFP#30 meets industry standards.
7.What is the process for return or replacement of R5F104LJAFP#30?
All R5F104LJAFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LJAFP#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 R5F104LJAFP#30 part is unused and in its original packaging.
Return procedure for R5F104LJAFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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