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Renesas R5F104LJGFB#V0
- Part No.:
- R5F104LJGFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LJGFB#V0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,738
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Product details
Overview
R5F104LJGFB#V0 from Renesas is a 64-pin LFQFP-packaged RL78/G14 16-bit microcontroller with 192 KB flash, 8 KB data flash, 20 KB RAM, 20-channel 10-bit ADC, and real-time clock-designed for industrial sensor nodes and low-power HMI control requiring -40°C to +105°C operation.
For engineers reviewing the R5F104LJGFB#V0 datasheet, R5F104LJGFB#V0 pinout, R5F104LJGFB#V0 application, or R5F104LJGFB#V0 equivalent, key selection criteria include its 0.60 μA RTC+LVD stop-mode current, 44 DMIPS @ 32 MHz performance, integrated event link controller (ELC), and dual UART/LIN support for deterministic serial communication in resource-constrained embedded systems.
Technical Context
The R5F104LJGFB#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It integrates a Data Transfer Controller (DTC) for autonomous memory transfers triggered by 19–26 peripheral events via the Event Link Controller (ELC).
Its mixed-signal subsystem includes an 8/10-bit ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DACs with real-time output, and two comparators configurable in high-speed, low-speed, or window mode-enabling closed-loop analog control without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and multiply/divide instructions |
| Max Clock | 32 MHz (44 DMIPS); high-accuracy on-chip oscillator ±1.0% over -20 to +85°C |
| Memory | 192 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), 20 KB RAM |
| ADC | 10-bit resolution, 20 input channels, internal 1.45 V reference, and on-chip temperature sensor |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD active), SNOOZE for background flash programming |
| Peripherals | 4× I²C, 3× UART/LIN, 3× CSI/SPI, 12× 16-bit timers including RTC with calendar and alarm |
| Operating Range | 1.6 V to 5.5 V supply; -40°C to +105°C ambient (G-grade industrial) |
Pinout & Package
Package: 64-pin LFQFP, 10 × 10 mm, 0.5 mm pitch, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121/X1 | Crystal input | Connects to 32.768 kHz tuning-fork crystal for RTC accuracy and low-power timekeeping |
| P122/X2/EXCLK | Crystal output / external clock input | Completes RTC oscillator circuit or accepts external clock source for synchronous timing |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; supports brown-out detection via LVD |
| VDD / VSS | Power supply / ground | Dual power domains: analog (AVREFP/AVREFM) and digital; REGC capacitor required for regulator stability |
| P14/RxD2/SI20/SDA20/TRDIOD0/(SCLA0) | Multi-function I/O | Configurable as UART2 RX, SPI2 MISO, I²C2 data, or ELC-linked peripheral trigger input |
| P15/PCLBUZ1/SCK20/SCL20/TRDIOB0/(SDAA0) | Multi-function I/O | Supports buzzer drive, SPI2 clock, I²C2 clock, or ELC-triggered DMA transfer initiation |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Links 19–26 peripheral events directly to functions like timer start, ADC trigger, or DTC activation-eliminating CPU polling overhead |
| Data Transfer Controller (DTC) | Performs memory-to-peripheral and memory-to-memory transfers autonomously using interrupt sources as triggers |
| SNOOZE mode | Enables background rewriting of data flash while CPU executes code from main flash-no runtime interruption |
| On-chip debug interface | Fully integrated with Renesas E2 emulator; supports real-time trace, flash breakpoints, and secure boot swap functionality |
| Peripheral I/O redirection | Allows dynamic remapping of up to 8 peripheral functions across multiple pins via PIOR0/PIOR1 registers-simplifying PCB layout reuse |
Applications
| Industrial Sensor Node | Smart Thermostat HMI |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor with wireless telemetry in HVAC ducts. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, RTC-based wake-up scheduling, LIN bus diagnostics, and ultra-low-power STOP mode between readings. Use Value: 0.60 μA STOP current extends battery life to >5 years; ELC-triggered ADC conversions reduce active time by 40% versus polling. | Use Scenario: Touch-enabled residential thermostat with local display, relay control, and cloud connectivity. IC Role / Device Role / Timing Role: System-on-chip handling capacitive touch sensing, 7-segment LED driver, relay PWM, and UART-to-WiFi bridge firmware. Use Value: Integrated 8-bit DAC drives buzzer feedback; 20 KB RAM supports local UI state buffering without external memory. |
| Programmable Logic Controller I/O Module | Energy Meter Front-End |
Use Scenario: DIN-rail mounted I/O expansion module with digital inputs, relay outputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol processor and GPIO manager interfacing with isolated inputs/outputs via UART and timer-driven pulse generation. Use Value: Dual UART with LIN support enables native Modbus ASCII/RTU framing; 12× 16-bit timers provide precise 1 ms task scheduling. | Use Scenario: Residential electricity meter measuring voltage/current via shunt/sensor and calculating kWh with tamper detection. IC Role / Device Role / Timing Role: Metrology co-processor acquiring synchronized ADC samples, computing RMS values, and updating RTC-corrected billing counters. Use Value: On-chip temperature sensor compensates ADC gain drift; 8 KB data flash stores calibration coefficients with 1M-cycle endurance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGFB#V0 | Same package and pinout; reduced flash (96 KB) and RAM (12 KB); identical peripherals and low-power specs | Suitable for cost-sensitive designs with smaller firmware footprint and fewer data logging requirements | Select when application code size stays under 80 KB and data buffer needs are ≤8 KB |
| R5F104LJGFP#V0 | Same flash/RAM/peripherals; different package: 64-pin LQFP (14×14 mm, 0.8 mm pitch) instead of LFQFP (10×10 mm, 0.5 mm pitch) | Preferred for legacy board designs using standard LQFP footprints or where thermal dissipation favors larger pad area | Choose for compatibility with existing LQFP-64 layouts or enhanced thermal performance at same pin count |
Compared with R5F104LGFB#V0, the R5F104LJGFB#V0 provides 100 KB more flash and 8 KB more RAM for complex control algorithms and extended data logging; versus R5F104LJGFP#V0, it offers 36% smaller PCB footprint and tighter pitch routing-critical for space-constrained industrial modules.
Availability
R5F104LJGFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, PLC I/O modules, and energy meter front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F104LJGFB#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 product line delivers true low-power operation (66 μA/MHz, 0.60 μA STOP) with rich analog integration and event-driven peripherals-targeting cost-sensitive, battery-operated, and thermally constrained industrial control applications.
FAQ
What is the maximum operating frequency and associated performance of the R5F104LJGFB#V0?
The R5F104LJGFB#V0 operates at up to 32 MHz with a measured performance of 44 DMIPS. Its high-accuracy on-chip oscillator maintains ±1.0% tolerance across -20°C to +85°C and full VDD range (1.6 V to 5.5 V), eliminating need for external crystals in many timing-critical applications. This frequency enables real-time response in motor control loops and fast ADC sampling rates.
Does the R5F104LJGFB#V0 support in-system programming and secure firmware updates?
Yes, the R5F104LJGFB#V0 supports full in-system programming via its on-chip debug interface and includes flash shield window and boot swap functions. These features allow secure field updates by protecting designated memory regions from overwrite and enabling atomic firmware replacement-critical for maintaining reliability in deployed R5F104LJGFB#V0-based industrial controllers.
How does the Event Link Controller (ELC) improve real-time responsiveness in the R5F104LJGFB#V0?
The ELC in the R5F104LJGFB#V0 enables direct hardware-level linking of 19–26 peripheral events (e.g., timer overflow, ADC end-of-conversion) to target functions like DTC activation or another timer start-without CPU intervention. This reduces interrupt latency to sub-microsecond levels and frees the RL78 core for higher-layer tasks, making the R5F104LJGFB#V0 ideal for deterministic control in servo drives and power converters.
What analog features are integrated into the R5F104LJGFB#V0 for sensor interfacing?
The R5F104LJGFB#V0 integrates a 10-bit ADC with 20 input channels, internal 1.45 V reference voltage, and on-chip temperature sensor; two 8-bit DACs with 0–VDD output range and real-time update capability; and up to two comparators with selectable internal/external reference and window mode. These features enable direct connection of thermistors, strain gauges, and analog sensors without external signal conditioning in R5F104LJGFB#V0-based measurement systems.
Is the R5F104LJGFB#V0 qualified for industrial temperature operation?
Yes, the R5F104LJGFB#V0 carries the 'G' grade designation, specifying guaranteed operation from -40°C to +105°C ambient temperature. It meets industrial reliability standards including AEC-Q100 stress testing and supports robust power management features-such as LVD with 14 selectable threshold levels and POR circuitry-making it suitable for deployment in harsh environments like factory automation and outdoor energy infrastructure where the R5F104LJGFB#V0 serves as primary controller.
R5F104LJGFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LJGFB#V0 FAQ
1.How can I place an order for R5F104LJGFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LJGFB#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 R5F104LJGFB#V0 reliable?
The price and inventory of R5F104LJGFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LJGFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F104LJGFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LJGFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LJGFB#V0?
R5F104LJGFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LJGFB#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 R5F104LJGFB#V0?
For technical support, including R5F104LJGFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LJGFB#V0 requirements.
6.How does Aetrix verify that R5F104LJGFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104LJGFB#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 R5F104LJGFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F104LJGFB#V0?
All R5F104LJGFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LJGFB#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 R5F104LJGFB#V0 part is unused and in its original packaging.
Return procedure for R5F104LJGFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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