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Renesas R5F104LGALA#U0
- Part No.:
- R5F104LGALA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-WFLGA
- Datasheet:
-
R5F104LGALA#U0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64FLGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,935
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Product details
Overview
R5F104LGALA#U0 from Renesas is a 64-pin FLGA-packaged RL78/G14 16-bit microcontroller with 512 KB flash, 48 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40 to +105°C (industrial G-grade). It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates UART, I²C, SPI, 16-bit timers, 10-bit ADC (20 ch), RTC, and on-chip oscillators for embedded control in industrial sensors and motor drives.
For engineers reviewing the R5F104LGALA#U0 datasheet, R5F104LGALA#U0 pinout, R5F104LGALA#U0 application, or R5F104LGALA#U0 equivalent, key selection criteria include its FLGA-64 package compatibility, industrial temperature rating, integrated data flash rewrite capability (1M cycles), and support for background operation during flash programming - critical for firmware-over-the-air updates and real-time logging.
Technical Context
The R5F104LGALA#U0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs @ 32 MHz to 30.5 µs @ 32.768 kHz). It supports multiply/divide/accumulate instructions and 1 MB address space, enabling deterministic real-time execution in resource-constrained systems.
Its peripheral set includes Event Link Controller (ELC) for hardware-triggered peripheral chaining, Data Transfer Controller (DTC) with block/repeat/chain transfer modes, and simplified SPI (CSI), UART/LIN, and I²C interfaces - all configurable via register settings without CPU intervention, reducing interrupt latency and firmware overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz (44 DMIPS); high-speed on-chip oscillator selectable from 1–64 MHz |
| Memory | 512 KB code flash (1 KB blocks), 48 KB RAM, 8 KB data flash with BGO support |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC (20 channels, internal 1.45 V reference), 8-bit DAC (2 channels), 2 comparators |
| Timers & RTC | 12× 16-bit timers (TAU/RA/RG/RD), 12-bit interval timer, calendar RTC (99-year), watchdog |
| Serial Interfaces | Up to 10× I²C/simplified I²C, 4× UART/LIN, 8× CSI (SPI-compatible) |
Pinout & Package
Package: FLGA-64 (5 × 5 mm, 0.5 mm pitch), lead-free, moisture-sensitive level 3, suitable for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; input capture timer channel; trace clock A for debug |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; trace clock B for synchronized debugging |
| P10–P17 | CSI/UART/I²C/SPI peripherals | Multi-function serial interface pins supporting hardware-reconfigurable protocols |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM | 8-channel analog input with dedicated voltage reference inputs for precision ADC |
| P30–P31 | INTP3 / RTC1HZ / TI03 / TO03 | Real-time clock output and external interrupt/timer I/O for event synchronization |
| P60–P62 | SCLA0 / SDAA0 / SSI00 | I²C master/slave interface and synchronous serial interface for sensor/EEPROM comms |
| P120–P124 | VCOUT0 / X1 / X2 / XT1 / XT2 | Crystal oscillator connections (32.768 kHz RTC + 1–20 MHz main) and voltage-controlled output |
| RESET / REGC / VDD / VSS | Reset control / regulator capacitor / supply rails | Dedicated low-noise regulator bypass (REGC) and robust reset circuitry for stable startup |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.60 μA current draw with RTC and LVD active - enables multi-year battery life in remote sensors |
| Data flash background operation | 1,000,000 write cycles with BGO allows concurrent program execution and nonvolatile logging |
| Hardware peripheral linking (ELC) | 19–26 event sources directly trigger peripherals without CPU involvement - reduces ISR latency by >90% |
| On-chip debug & self-programming | Full on-chip debug interface and boot-swapping flash shield window enable secure field firmware updates |
| Multi-voltage I/O | Supports 1.8/2.5/3.0 V logic interfacing - simplifies integration with mixed-voltage sensor subsystems |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
Use Scenario: Closed-loop BLDC motor control in HVAC blowers and pump drivers requiring precise timing and analog feedback. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, sampling current/voltage via 10-bit ADC, generating PWM via TAU timers, and communicating via UART/LIN. Use Value: 44 DMIPS compute headroom and deterministic 32.768 kHz RTC enable accurate energy accumulation over 99-year calendar intervals. | Use Scenario: DIN-rail mounted electricity meters needing tamper-resistant firmware, long-term data retention, and metrology-grade analog acquisition. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC, RTC-based billing intervals, secure flash updates, and RS-485/I²C communications. Use Value: 8 KB data flash with 1M-cycle endurance stores tariff schedules and usage logs; 0.60 μA STOP mode extends backup battery life beyond 10 years. |
| Factory Automation I/O Module | Medical Diagnostic Sensor Hub |
Use Scenario: Distributed digital I/O node collecting discrete signals and driving relays/LEDs in PLC-adjacent equipment. IC Role / Device Role / Timing Role: Real-time I/O coordinator using ELC to chain GPIO interrupts to DTC transfers and UART transmission without CPU load. Use Value: Hardware-peripheral linking eliminates software polling, achieving sub-10 µs response to input edge events under full load. | Use Scenario: Portable diagnostic device aggregating temperature, ECG, and SpO₂ sensor data with local preprocessing before Bluetooth transmission. IC Role / Device Role / Timing Role: Low-power sensor fusion hub performing ADC oversampling, FIR filtering, and RTC-synchronized data tagging. Use Value: 66 μA/MHz active current and 1.6 V minimum supply allow operation from single-cell Li-ion batteries across clinical use cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LLAFA | LQFP-64 package (12×12 mm, 0.65 mm pitch); identical memory/peripherals; same G-grade temp range | Requires PCB layout change due to larger footprint and different thermal pad; better heat dissipation for sustained 32 MHz operation | Select when board space permits larger package and thermal management is prioritized over miniaturization |
| R5F104LGAFB | LFQFP-64 package (10×10 mm, 0.5 mm pitch); same flash/RAM/data flash specs; identical G-grade rating | Compatible pinout but different mechanical mounting and solder reflow profile; no exposed die pad | Choose for legacy LQFP assembly lines or where FLGA rework complexity is prohibitive |
Compared with R5F104LLAFA and R5F104LGAFB, the R5F104LGALA#U0 offers the smallest PCB footprint (5×5 mm FLGA) and highest I/O density per mm² - critical for space-constrained industrial edge nodes where thermal performance is managed via enclosure airflow rather than package conduction.
Availability
R5F104LGALA#U0 is available at Aetrix Electronics and suitable for industrial motor control, smart metering, factory automation I/O modules, and medical sensor hubs requiring stable component supply across extended product lifecycles.
Supply support for R5F104LGALA#U0 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 targets cost-sensitive, ultra-low-power general-purpose embedded applications - delivering high integration, robust industrial qualification, and toolchain continuity within the RL78 ecosystem.
FAQ
What is the operating temperature range for the R5F104LGALA#U0?
The R5F104LGALA#U0 is rated for industrial applications with an operating ambient temperature range of -40°C to +105°C (G-grade), validated per JEDEC JESD22-A108. This specification applies to the full functional operation of all peripherals including ADC, RTC, and flash programming - confirmed in the R01DS0053EJ0370 datasheet Section 1.1.
Does the R5F104LGALA#U0 support background data flash rewriting?
Yes, the R5F104LGALA#U0 supports background operation (BGO) for data flash rewriting: instructions can execute from program memory while data flash is being rewritten. Its 8 KB data flash is rated for 1,000,000 write cycles at VDD = 1.8–5.5 V, enabling reliable firmware parameter storage and field-updatable calibration tables without halting application code.
What package type and dimensions does the R5F104LGALA#U0 use?
The R5F104LGALA#U0 uses a 64-pin FLGA (Fine Pitch Land Grid Array) package measuring 5 mm × 5 mm with 0.5 mm pitch. It is RoHS-compliant, moisture-sensitive level 3, and features a bottom-side thermal pad recommended to be connected to VSS for optimal thermal performance - detailed in Renesas Package Code PWLG0064KA-A.
How many analog input channels does the R5F104LGALA#U0 support?
The R5F104LGALA#U0 supports up to 20 analog input channels (ANI0–ANI19) with 10-bit resolution, operating across the full 1.6–5.5 V supply range. Dedicated AVREFP/AVREFM pins enable ratiometric or absolute voltage measurements, and an internal 1.45 V reference is available - all confirmed in the "A/D Converter" section of the R01DS0053EJ0370 datasheet.
Is the R5F104LGALA#U0 pin-compatible with other RL78/G14 variants?
No - the R5F104LGALA#U0 is not pin-compatible with other RL78/G14 variants due to its FLGA-64 package, which differs mechanically and electrically from LQFP, LFQFP, and HWQFN packages used by other members of the family. Pin assignments, power/ground distribution, and thermal pad requirements are unique to the FLGA variant, requiring dedicated PCB layout.
R5F104LGALA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-WFLGA
- 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:
- 48
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K 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:
R5F104LGALA#U0 FAQ
1.How can I place an order for R5F104LGALA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LGALA#U0 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 R5F104LGALA#U0 reliable?
The price and inventory of R5F104LGALA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LGALA#U0 is usually 5 days.
3.What payment methods are accepted for R5F104LGALA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LGALA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LGALA#U0?
R5F104LGALA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LGALA#U0 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 R5F104LGALA#U0?
For technical support, including R5F104LGALA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LGALA#U0 requirements.
6.How does Aetrix verify that R5F104LGALA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F104LGALA#U0 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 R5F104LGALA#U0 meets industry standards.
7.What is the process for return or replacement of R5F104LGALA#U0?
All R5F104LGALA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LGALA#U0, 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 R5F104LGALA#U0 part is unused and in its original packaging.
Return procedure for R5F104LGALA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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