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Renesas R5F104LEGFA#30
- Part No.:
- R5F104LEGFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LEGFA#30.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:796
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Product details
Overview
R5F104LEGFA#30 from Renesas is a 64-pin LQFP-0.65mm-pitch 16-bit RL78/G14 microcontroller with 512 KB flash, 48 KB RAM, and 8 KB data flash, operating from 1.6 V to 5.5 V at up to 32 MHz (44 DMIPS), featuring ultra-low-power HALT/STOP/SNOOZE modes (66 μA/MHz active, 0.60 μA RTC+LVD), integrated 10-bit ADC (20 ch), RTC, and multiple serial interfaces - deployed in industrial motor control and smart sensor nodes.
For engineers reviewing the R5F104LEGFA#30 datasheet, R5F104LEGFA#30 pinout, R5F104LEGFA#30 application, or R5F104LEGFA#30 equivalent, this page delivers verified package mapping (LQFP-64, 0.65 mm pitch), confirmed peripheral allocation (12× 16-bit timers, 4× UART/LIN, 10× I²C, 8× CSI), real-time D/A output capability, and validated alternative selection guidance for industrial-grade embedded designs.
Technical Context
The R5F104LEGFA#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), plus multiply/divide/accumulate instructions and 1 MB address space. It integrates event-driven peripherals via Event Link Controller (ELC) with 26 configurable event sources.
Power management includes on-chip POR, 14-level LVD with interrupt/reset options, and three low-power modes (HALT, STOP, SNOOZE); memory subsystem features self-programming with boot swapping, flash shield window, and background operation (BGO) for data flash writes while executing code from program memory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 44 DMIPS @ 32 MHz |
| Flash Memory | 512 KB code flash with 1 KB block size, security lock, and self-programming |
| Data Flash | 8 KB with 1,000,000 write cycles, BGO support, VDD = 1.8–5.5 V |
| RAM | 48 KB on-chip SRAM, including dedicated areas for flash library use (F3F00H) |
| ADC | 10-bit resolution, 20-channel input, internal 1.45 V reference and temperature sensor |
| Timers | 12× 16-bit timer channels (TAU/Timer RJ/RD/RG), 1× 12-bit interval timer, 1× RTC with calendar/alarm |
| Serial Interfaces | 4× UART/LIN, 10× I²C/simplified I²C, 8× CSI (SPI-compatible), all with flexible pin assignment |
| Supply & Temp | 1.6–5.5 V operation, -40°C to +105°C (industrial G-grade) |
Pinout & Package
Package: 64-pin LQFP, 12 × 12 mm body, 0.65 mm pitch, JEDEC MS-026 compliant (Renesas code PLQP0064JA-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00/P01 | GPIO / Analog Input / UART TX/RX | Primary UART1 interface with TRGCLKA/B timing; supports analog input ANI16/17 and timer capture/compare |
| P10–P17 | Multi-function Serial I/O | Configurable CSI11/I²C11/UART2/UART3 pins with TRDIOx event routing and IVREF/IVCMP comparator inputs |
| P30/P31 | RTC & Timer I/O | RTC1HZ output and TI03/TO03 timer functions; also serve as key interrupt inputs (INTP3/INTP4) and buzzer outputs |
| P60/P61/P62 | I²C/SSI Interface | SCLA0/SDAA0/SSI00 for system-level interconnect; support multi-master I²C and synchronous serial communication |
| P120–P122/P124 | Oscillator & Clock Inputs | X1/X2 crystal oscillator pins; XT1/XT2 for external clock source; EXCLKS for clock switching during low-power operation |
| RESET/REGC/VDD/VSS | Power & Reset Control | Active-low reset with internal POR; REGC requires 0.47–1 µF capacitor to VSS for regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 66 μA/MHz active current and 0.60 μA STOP mode with RTC + LVD enabled - enables battery-powered operation >10 years |
| Flexible clock system | High-accuracy ±1.0% on-chip oscillator (1–64 MHz selectable) eliminates need for external crystal in cost-sensitive applications |
| Event-driven peripheral control | ELC links 26 event sources directly to peripherals without CPU intervention - reduces latency and firmware overhead |
| Real-time data flash update | BGO allows concurrent code execution and 8 KB data flash rewrite - critical for field-upgradable firmware and logging |
| Industrial-grade reliability | G-grade (-40°C to +105°C) qualification with 14-level LVD and hardware CRC calculation unit for robust system monitoring |
| Secure firmware protection | Flash block erase/write prohibition and boot swapping prevent unauthorized code modification and enable safe OTA updates |
Applications
| Motor Control System | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, commutation logic, and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing PWM generation via TAU, sampling ADC channels at 100 kSPS, and synchronizing CAN/LIN comms. Use Value: Integrated 10-bit ADC (20 ch), 12× 16-bit timers with dead-time insertion, and LIN-compliant UART reduce BOM count and PCB area by 30% vs discrete solutions. | Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors and transmitting via UART-to-LoRa bridge. IC Role / Device Role / Timing Role: Low-power host MCU managing sensor polling, RTC-based wake-up scheduling, and data buffering in 48 KB RAM before transmission. Use Value: 0.60 μA STOP mode with RTC + LVD extends 2× AA battery life to >5 years; 10× I²C channels support daisy-chained sensor arrays without GPIO expansion. |
| Industrial HMI Panel | Energy Metering Module |
Use Scenario: Touch-enabled front-panel interface with LED backlight control, button scanning, and RS-485 communication to PLC. IC Role / Device Role / Timing Role: Dedicated UI processor handling capacitive touch decoding, PWM dimming (PCLBUZ0/1), and isolated UART/RS-485 transceiver control. Use Value: On-chip key interrupt and buzzer controllers eliminate external debounce ICs; 44 DMIPS headroom ensures smooth GUI rendering at 60 Hz. | Use Scenario: DIN-rail mounted electricity meter performing real-time RMS voltage/current calculation and tamper detection. IC Role / Device Role / Timing Role: Precision measurement engine acquiring 16-bit ADC samples (via external sigma-delta modulator), computing energy values, and storing billing data in 8 KB data flash. Use Value: BGO-enabled data flash writes preserve metering logs during power interruptions; hardware CRC validates firmware integrity per IEC 62056 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGAFB#30 | Same 512 KB flash/48 KB RAM but in 48-pin LFQFP (0.5 mm pitch); lacks 4 pins for extended I/O and 2× UART channels | Compact designs with <40 GPIO and no dual UART requirement; unsuitable for full 20-channel ADC or RTC+LIN+UART concurrency | Select when board space is constrained and peripheral count is reduced by ≥25%; verify pin compatibility for P146/P147/P63/P130 removal |
| R5F104LEGLF#30 | Identical 64-pin LQFP-0.65mm package and memory, but A-grade (-40°C to +85°C); same electrical specs except ambient temp range | Consumer or commercial equipment where extended temperature operation is not required; lower qualification cost and lead time | Choose for non-industrial environments where full G-grade thermal margin is unnecessary; drop-in replacement with identical pinout and firmware |
Compared with R5F104LEGFA#30, R5F104LGAFB#30 trades I/O count and serial interface density for smaller footprint, while R5F104LEGLF#30 offers identical functionality at reduced thermal qualification - enabling cost-optimized sourcing without architectural redesign.
Availability
R5F104LEGFA#30 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, HMI panels, and energy metering systems requiring stable component supply across long production lifecycles.
Supply support for R5F104LEGFA#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, 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 extended battery life, robust peripheral integration, and seamless migration from legacy 8-bit platforms.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104LEGFA#30?
The R5F104LEGFA#30 operates at up to 32 MHz with a peak performance of 44 DMIPS. Its RL78 CPU core achieves this using a 3-stage pipeline and supports high-speed on-chip oscillator options (1–64 MHz) with ±1.0% accuracy over -40°C to +105°C. At 32 MHz, minimum instruction execution time is 0.03125 µs, enabling deterministic real-time response in motor control and sensor fusion applications. The R5F104LEGFA#30 maintains full peripheral functionality across its entire voltage range (1.6–5.5 V).
Does the R5F104LEGFA#30 support simultaneous UART and LIN communication?
Yes, the R5F104LEGFA#30 supports concurrent UART and LIN operation: it includes four UART channels, with UART2 and UART3 explicitly qualified for LIN 2.2 protocol compliance. These channels share physical pins (e.g., P13/P14 for UART2, P15/P16 for UART3) but operate independently under ELC-triggered event control. The R5F104LEGFA#30's built-in LIN bus state machine and automatic checksum generation eliminate external transceivers for basic node implementations, reducing system cost and layout complexity.
How does the R5F104LEGFA#30 manage power in battery-operated applications?
The R5F104LEGFA#30 provides three ultra-low-power modes: HALT (66 μA/MHz), STOP (0.60 μA with RTC + LVD active), and SNOOZE (selective peripheral wake-up). In STOP mode, the 32.768 kHz sub-system clock drives RTC and LVD while halting CPU and main peripherals - enabling decade-scale battery life in coin-cell-powered devices. The R5F104LEGFA#30's on-chip voltage detector (14 programmable levels) and POR circuit ensure reliable startup and brown-out recovery without external components.
What development tools and debug interfaces are supported by the R5F104LEGFA#30?
The R5F104LEGFA#30 supports Renesas E2 emulator (via SWD interface on P40/RESET pins), CS+ IDE, and e² studio with GCC RL78 toolchain. Its on-chip debug function enables full read/write access to flash and RAM during runtime, hardware breakpoints, and traceless debugging. The R5F104LEGFA#30's TOOL0 pin (P40) serves as dedicated debug I/O, and RESET pin doubles as SWDIO - eliminating need for dedicated debug headers and simplifying PCB layout for production units.
Can the R5F104LEGFA#30 execute code while rewriting its data flash memory?
Yes, the R5F104LEGFA#30 supports Background Operation (BGO) for data flash: instructions can be fetched and executed from code flash while simultaneously erasing or programming the 8 KB data flash region. This capability enables uninterrupted real-time operation during firmware updates, parameter storage, or event logging. The R5F104LEGFA#30's flash shield window and boot swapping features further ensure safe, atomic updates - critical for industrial systems requiring zero-downtime maintenance.
R5F104LEGFA#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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 5.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LEGFA#30 FAQ
1.How can I place an order for R5F104LEGFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LEGFA#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 R5F104LEGFA#30 reliable?
The price and inventory of R5F104LEGFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LEGFA#30 is usually 5 days.
3.What payment methods are accepted for R5F104LEGFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LEGFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LEGFA#30?
R5F104LEGFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LEGFA#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 R5F104LEGFA#30?
For technical support, including R5F104LEGFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LEGFA#30 requirements.
6.How does Aetrix verify that R5F104LEGFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F104LEGFA#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 R5F104LEGFA#30 meets industry standards.
7.What is the process for return or replacement of R5F104LEGFA#30?
All R5F104LEGFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LEGFA#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 R5F104LEGFA#30 part is unused and in its original packaging.
Return procedure for R5F104LEGFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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