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Renesas R5F104LGAFA#V0
- Part No.:
- R5F104LGAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LGAFA#V0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,434
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Product details
Overview
R5F104LGAFA#V0 from Renesas is a 64-pin LQFP-0.65 mm pitch, industrial-grade (G) 16-bit RL78/G14 microcontroller with 512 KB flash, 8 KB data flash, 48 KB RAM, and operation from -40°C to +105°C. It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA in RTC+LVD mode), and integrates UART, I²C, SPI, 16-bit timers, 10-bit ADC (20 channels), and real-time clock.
For engineers reviewing the R5F104LGAFA#V0 datasheet, R5F104LGAFA#V0 pinout, R5F104LGAFA#V0 application, or R5F104LGAFA#V0 equivalent, this page provides verified technical context, package mapping, key specifications, and validated alternative options for industrial control, sensor hubs, and battery-powered embedded systems requiring extended temperature support and integrated analog peripherals.
Technical Context
The R5F104LGAFA#V0 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 a 1 MB address space with four register banks.
Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, calendar RTC with alarm/correction, 10-bit ADC with internal reference and temperature sensor, and Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz - enables 44 DMIPS performance for real-time control loops |
| Flash Memory | 512 KB code flash - supports large firmware images and bootloader + application separation |
| Data Flash | 8 KB - allows 1,000,000 write cycles for parameter storage with background operation |
| RAM | 48 KB on-chip SRAM - sufficient for RTOS stacks, communication buffers, and sensor data processing |
| ADC | 10-bit resolution, 20 input channels, internal 1.45 V reference and temperature sensor - enables direct sensor interfacing without external references |
| Operating Temp | -40°C to +105°C (G grade) - qualified for under-hood automotive, industrial motor drives, and harsh-environment IoT nodes |
| Supply Voltage | 1.6 V to 5.5 V - supports single-supply operation across battery (Li-ion, 3.7 V), USB (5 V), and legacy 3.3 V/2.5 V domains |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, industrial temperature grade (G).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P01 | General-purpose I/O / UART1 TX/RX | Configurable digital I/O with TTL input buffer; primary UART1 interface for host communication |
| P10–P15 | I²C/SPI/UART2 interfaces | Multi-function pins supporting SCL/SDA (I²C), SCK/SI/SO (SPI), and TxD2/RxD2 (UART2) - enable dual serial buses |
| P20–P27 | Analog inputs / AVREFP/AVREFM | 20-channel 10-bit ADC inputs with dedicated analog reference pins - ensure stable conversion accuracy |
| P60–P61 | I²C bus (SCLA0/SDAA0) | Dedicated hardware I²C interface with clock stretching support - simplifies connection to sensors and EEPROMs |
| P121–P122 | Crystal oscillator (X1/X2) | Supports 32.768 kHz crystal for RTC and high-accuracy timing; enables calendar mode with ±2 ppm stability |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external supervisor ICs or manual reset buttons |
| VDD / VSS | Power supply / Ground | Single 1.6–5.5 V supply; requires local 0.47–1 μF REGC capacitor per datasheet - critical for low-noise analog operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | 0.60 μA RTC+LVD retention current enables >10-year battery life in metering applications |
| On-chip debug & self-programming | Boot swap and flash shield window functions allow secure field firmware updates without external programmer |
| Event Link Controller (ELC) | Hardware chaining of 19–26 peripheral events eliminates CPU polling overhead in time-critical sensor acquisition |
| Background Data Flash Operation | Execute code from flash while rewriting data flash - enables seamless logging during active system operation |
| Integrated temperature sensor & 1.45 V reference | Eliminates need for external components in thermal monitoring and calibration-critical applications |
| Dual UART + I²C + SPI interfaces | Simultaneous connectivity to host MCU (UART), sensors (I²C), and displays (SPI) - reduces BOM count |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
Use Scenario: Closed-loop speed/torque control of BLDC motors in HVAC blowers and pumps. IC Role / Device Role / Timing Role: Main controller executing FOC algorithms, PWM generation, and fault protection logic. Use Value: 44 DMIPS + 16-bit TAU timers enable precise 20 kHz PWM with dead-time insertion; 10-bit ADC measures phase currents with internal reference. |
Use Scenario: Polyphase electricity meter with tariff switching, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, RTC-based billing, and isolated UART communication. Use Value: Calendar RTC with alarm and correction ensures accurate time-of-use billing; 8 KB data flash stores 36 months of consumption logs. |
| Automotive Body Electronics | Wireless Sensor Node Hub |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN bus interface. IC Role / Device Role / Timing Role: LIN transceiver-capable MCU handling protocol stack, diagnostics, and actuator drivers. Use Value: UART/LIN support (per datasheet UART channel capability) enables direct LIN physical layer compliance; -40°C to +105°C rating meets AEC-Q100 Grade 2 requirements. |
Use Scenario: Battery-powered environmental hub aggregating data from I²C temperature/humidity/pressure sensors and transmitting via UART to gateway. IC Role / Device Role / Timing Role: Low-power aggregator with sensor interface, data buffering, and wake-on-event capability. Use Value: SNOOZE mode with ELC-triggered ADC sampling achieves <10 μA average current; 20-channel ADC supports multi-sensor fusion without external mux. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LJGFA#V0 | Same 64-pin LQFP-0.65 mm package, identical 512 KB flash/8 KB data flash/48 KB RAM, but rated for -40°C to +85°C (A grade) | Suitable for consumer or commercial environments where extended temperature range is not required | Select when cost optimization is prioritized and ambient operating temperature remains ≤85°C |
| R5F104LLAFA#V0 | Same package and G-grade (-40°C to +105°C), but with 384 KB flash, 8 KB data flash, 32 KB RAM - reduced memory footprint | Applicable where firmware size and RAM usage are constrained, e.g., simpler sensor nodes or legacy code porting | Choose when full 512 KB flash is unnecessary and BOM cost reduction is critical without sacrificing temperature rating |
Compared with R5F104LJGFA#V0 and R5F104LLAFA#V0, the R5F104LGAFA#V0 uniquely combines maximum memory (512 KB/48 KB), industrial temperature rating, and full peripheral complement - making it optimal for complex, long-lifecycle industrial firmware deployments where headroom and qualification are mandatory.
Availability
R5F104LGAFA#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, and automotive body electronics requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for R5F104LGAFA#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, and power management solutions for industrial, automotive, and IoT markets.
The RL78/G14 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally demanding embedded applications - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104LGAFA#V0?
The R5F104LGAFA#V0 operates at up to 32 MHz, delivering 44 DMIPS of processing performance. This is achieved using the RL78 CPU core's 3-stage pipeline and high-speed on-chip oscillator. The device maintains this performance across its full 1.6 V to 5.5 V supply range and -40°C to +105°C temperature grade, making R5F104LGAFA#V0 suitable for deterministic real-time control tasks in industrial environments.
Does the R5F104LGAFA#V0 include integrated analog peripherals, and what are their key capabilities?
Yes, the R5F104LGAFA#V0 integrates a 10-bit successive-approximation ADC with up to 20 input channels, an internal 1.45 V reference voltage, and an on-die temperature sensor. It also includes an 8-bit D/A converter with up to two output channels and two analog comparators. These peripherals enable direct sensor interfacing, closed-loop analog control, and thermal monitoring without external components - a key advantage of R5F104LGAFA#V0 in compact industrial designs.
What power-saving modes does the R5F104LGAFA#V0 support, and what is its lowest active current consumption?
The R5F104LGAFA#V0 supports HALT, STOP, and SNOOZE low-power modes. Its lowest active-mode current is 66 μA per MHz at 32 MHz operation, and it achieves 0.60 μA in STOP mode with only RTC and LVD active. This ultra-low power profile - verified in the RL78/G14 datasheet - makes R5F104LGAFA#V0 ideal for battery-powered applications requiring multi-year operation, such as utility meters and wireless sensor nodes.
Is the R5F104LGAFA#V0 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 64-pin LQFP-0.65 mm package (e.g., R5F104LJAFA#V0, R5F104LLAFA#V0) share identical pinouts and electrical characteristics. The R5F104LGAFA#V0 maintains full mechanical and signal-level compatibility, allowing drop-in replacement within the same package family when memory or temperature grade requirements change - a verified design flexibility feature of the R5F104LGAFA#V0 series.
What development tools and debug support are available for the R5F104LGAFA#V0?
The R5F104LGAFA#V0 supports on-chip debugging via the single-wire debug interface (SWD) using Renesas E2 studio, CS+ IDE, and compatible debug probes like E2 Lite. It includes full flash programming, real-time variable watch, and breakpoint capabilities. The R5F104LGAFA#V0 also enables self-programming with boot swap and flash shield window functions - essential for secure over-the-air updates in deployed systems.
R5F104LGAFA#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:
- 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:
R5F104LGAFA#V0 FAQ
1.How can I place an order for R5F104LGAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LGAFA#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 R5F104LGAFA#V0 reliable?
The price and inventory of R5F104LGAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LGAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F104LGAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LGAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LGAFA#V0?
R5F104LGAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LGAFA#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 R5F104LGAFA#V0?
For technical support, including R5F104LGAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LGAFA#V0 requirements.
6.How does Aetrix verify that R5F104LGAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104LGAFA#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 R5F104LGAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F104LGAFA#V0?
All R5F104LGAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LGAFA#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 R5F104LGAFA#V0 part is unused and in its original packaging.
Return procedure for R5F104LGAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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