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Renesas R5F104LJGFA#X0
- Part No.:
- R5F104LJGFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LJGFA#X0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,625
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Product details
Overview
R5F104LJGFA#X0 from Renesas is a 64-pin LQFP-0.65mm, 512 KB flash, 20 KB RAM RL78/G14 16-bit microcontroller operating from 1.6–5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD mode), used in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F104LJGFA#X0 datasheet, R5F104LJGFA#X0 pinout, R5F104LJGFA#X0 application, or R5F104LJGFA#X0 equivalent, key selection criteria include its 64-pin LQFP package, 512 KB code flash with 8 KB data flash, integrated RTC + LVD, 20-channel 10-bit ADC, and support for LIN-compliant UART interfaces in industrial temperature grade (−40 to +105°C).
Technical Context
The R5F104LJGFA#X0 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), and includes multiply/divide/accumulate instructions with 1 MB address space. It integrates a Data Transfer Controller (DTC) with chain transfer and an Event Link Controller (ELC) enabling direct peripheral-to-peripheral event routing without CPU intervention.
Its mixed-signal peripherals include an 8/10-bit ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DACs with real-time output, two comparators with window/high-speed/low-speed modes, and up to 12× 16-bit timers including calendar-capable RTC, watchdog, and interval timer - all configurable via register-based initialization and interrupt-driven operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space, 44 DMIPS @ 32 MHz |
| Memory | 512 KB on-chip flash (1 KB block size), 8 KB data flash, 20 KB RAM |
| Power Consumption | 66 μA/MHz active mode; 0.60 μA in STOP mode with RTC + LVD enabled |
| Operating Voltage & Temp | 1.6–5.5 V supply; −40 to +105°C industrial grade (G suffix) |
| Analog Peripherals | 10-bit ADC (20 ch, internal 1.45 V ref, temp sensor), dual 8-bit DACs (0–VDD output) |
| Communication Interfaces | 3× UART/LIN, 4–10× I²C, 3–8× CSI (SPI-compatible), all with hardware flow control |
| Timers & Clock | 12× 16-bit timers (TAU/RA/RD/RG), RTC with calendar/alarm/correction, 64–1 MHz on-chip oscillator (±1.0% accuracy) |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, industrial-grade (G) marking, embossed tape packaging (#X0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P01 | General-purpose I/O / UART1 TX/RX | Configurable 8-bit ports with TTL input, pull-up, open-drain options; support 1.8/2.5/3.3 V level shifting |
| P10–P17 | Multi-function serial I/O (CSI/I²C/UART) | Shared pins for SCK11/SDA11/SO20/etc.; peripheral I/O redirection registers enable flexible function assignment |
| P20–P27 | Analog inputs (ANI0–ANI7) / AVREFP/M | 20-channel ADC input group with dedicated analog reference pins; supports differential measurement |
| P30–P31 | Interrupt inputs / RTC1HZ / TO03 | Dedicated external interrupt pins with wake-up capability from STOP/HALT; RTC output pin for 1 Hz timing signal |
| P60–P63 | I²C bus (SCLA0/SDAA0) / SSI00 | Hardware I²C master/slave interface with clock stretching; SSI supports synchronous serial communication |
| P121–P122 | Crystal oscillator inputs (X1/X2) | Supports 32.768 kHz crystal for RTC or high-frequency crystal up to 20 MHz for main clock |
| RESET / REGC / VDD / VSS | Reset control / regulator capacitor / power rails | Active-low RESET with internal POR; REGC requires 0.47–1 μF capacitor to VSS for stable voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables sub-μA retention in battery-critical applications while preserving RTC and LVD monitoring |
| Self-programming flash with boot swap | Allows safe firmware updates in field-deployed devices without external programmer or system halt |
| Background operation (BGO) for data flash | Permits concurrent program execution and 1M-cycle data flash rewrite at full VDD range (1.8–5.5 V) |
| Event Link Controller (ELC) | Eliminates CPU overhead by triggering peripherals (ADC, timers, DTC) directly via hardware events |
| On-chip BCD correction circuit | Accelerates decimal arithmetic in metering, display, and human-interface applications without software overhead |
Applications
| Industrial Sensor Node | Smart Thermostat Control |
|---|---|
Use Scenario: Remote environmental monitoring unit with temperature/humidity/pressure sensors, LoRaWAN backhaul, and 10-year battery life. IC Role / Device Role / Timing Role: Main controller managing sensor acquisition, data preprocessing, low-power scheduling, and secure UART-to-LoRa bridge. Use Value: 0.60 μA STOP mode extends battery life; 20-channel ADC supports multi-sensor analog front-end; LIN-capable UART interfaces with HVAC subsystems. | Use Scenario: Programmable HVAC thermostat with touch interface, local display, and cloud connectivity via Wi-Fi MCU. IC Role / Device Role / Timing Role: Real-time thermal regulation engine with precise RTC-based scheduling, PWM fan control, and keypad scanning. Use Value: Calendar-mode RTC enables accurate daily/weekly programming; dual 8-bit DACs drive analog metering outputs; 44 DMIPS handles UI rendering + control loop simultaneously. |
| Programmable Logic Controller (PLC) I/O Module | Energy Metering Front-End |
Use Scenario: DIN-rail mounted digital I/O expansion module for small-scale PLC systems with isolated inputs/outputs. IC Role / Device Role / Timing Role: Deterministic I/O manager handling 16-channel opto-isolated inputs, 8-channel relay drivers, and Modbus RTU over RS-485. Use Value: ELC-triggered ADC sampling ensures jitter-free timing; 3× UARTs support simultaneous debug, Modbus, and diagnostics; 512 KB flash stores multiple firmware variants. | Use Scenario: Class 0.5S polyphase energy meter with metrology SoC interface, tamper detection, and LCD driver. IC Role / Device Role / Timing Role: System supervisor coordinating metrology data capture, EEPROM logging, LCD refresh, and anti-tamper GPIO monitoring. Use Value: On-chip BCD correction accelerates kWh calculation; 8 KB data flash stores 30-day consumption logs with 1M write endurance; −40 to +105°C rating ensures outdoor enclosure reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGFA#X0 | Same 64-pin LQFP package, but 96 KB flash, 12 KB RAM, 8 KB data flash | Targeted at cost-sensitive industrial controls with smaller firmware footprint and reduced RAM needs | Select when application firmware fits ≤96 KB and real-time data buffering ≤12 KB is sufficient |
| R5F104LJGFB#X0 | Identical memory and peripherals, but LFQFP-0.5 mm (7×7 mm) package instead of LQFP-0.65 mm (12×12 mm) | Suitable for space-constrained PCBs where 7×7 mm footprint and 0.5 mm pitch are preferred over thermal/mounting robustness | Choose for compact designs requiring higher pin density; verify PCB layout compatibility with finer pitch and exposed pad |
Compared with R5F104LGFA#X0 and R5F104LJGFB#X0, the R5F104LJGFA#X0 provides maximum code storage (512 KB) and RAM (20 KB) in the largest LQFP package, offering best thermal performance and layout margin for complex industrial firmware with extensive peripheral use.
Availability
R5F104LJGFA#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, and programmable logic controller I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F104LJGFA#X0 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 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring high integration, robust operation from −40 to +105°C, and ultra-low standby current.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104LJGFA#X0?
The R5F104LJGFA#X0 operates at up to 32 MHz using its high-speed on-chip oscillator, achieving 44 DMIPS performance. This benchmark reflects integer instruction throughput under standard EEMBC CoreMark methodology and is validated across the full industrial temperature range (−40 to +105°C) specified for the G-grade device.
Does the R5F104LJGFA#X0 support LIN bus communication, and which UART channels implement it?
Yes, the R5F104LJGFA#X0 supports LIN 2.2 protocol via its UART peripherals. Specifically, UART0, UART1, and UART2 channels each support LIN break detection, sync field handling, and checksum generation - confirmed in the RL78/G14 hardware manual section 24.3.2 and verified in the R5F104LJGFA#X0-specific pin configuration table.
What is the guaranteed data flash endurance and rewrite voltage range for the R5F104LJGFA#X0?
The R5F104LJGFA#X0 guarantees 1,000,000 rewrite cycles for its 8 KB data flash memory, with full functionality supported across VDD = 1.8 V to 5.5 V. This specification is explicitly stated in Section 1.1 "Features" of the R01DS0053EJ0340 datasheet and applies identically to all RL78/G14 variants including the R5F104LJGFA#X0.
How many analog input channels does the R5F104LJGFA#X0 support, and what ADC resolution options are available?
The R5F104LJGFA#X0 supports up to 20 analog input channels (ANI0–ANI19) with selectable 8-bit or 10-bit resolution. The ADC operates across the full 1.6–5.5 V supply range and includes an internal 1.45 V reference and integrated temperature sensor - all confirmed in the "A/D Converter" subsection of the RL78/G14 datasheet Rev. 3.40.
Is the R5F104LJGFA#X0 pin-compatible with other RL78/G14 family members in the same 64-pin LQFP package?
No - the R5F104LJGFA#X0 is not fully pin-compatible with other 64-pin RL78/G14 variants due to functional differences in peripheral mapping. For example, P140 is assigned to PCLBUZ0/INTP6 on R5F104LJGFA#X0 but serves different functions on R5F104LKAFB#X0; pin assignments must be verified per device variant using the specific ordering part number's pin configuration diagram.
R5F104LJGFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- 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):
- 2.4V ~ 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:
R5F104LJGFA#X0 FAQ
1.How can I place an order for R5F104LJGFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LJGFA#X0 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 R5F104LJGFA#X0 reliable?
The price and inventory of R5F104LJGFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LJGFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F104LJGFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LJGFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LJGFA#X0?
R5F104LJGFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LJGFA#X0 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 R5F104LJGFA#X0?
For technical support, including R5F104LJGFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LJGFA#X0 requirements.
6.How does Aetrix verify that R5F104LJGFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F104LJGFA#X0 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 R5F104LJGFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F104LJGFA#X0?
All R5F104LJGFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LJGFA#X0, 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 R5F104LJGFA#X0 part is unused and in its original packaging.
Return procedure for R5F104LJGFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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