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Renesas R5F104LEDFB#V0
- Part No.:
- R5F104LEDFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LEDFB#V0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,053
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Product details
Overview
R5F104LEDFB#V0 from Renesas is a 64-pin LFQFP (0.5 mm pitch), 48 KB flash, 5.5 KB RAM, RL78/G14 16-bit MCU operating at 32 MHz with 44 DMIPS, 1.6–5.5 V supply, and ultra-low-power HALT/STOP/SNOOZE modes - deployed in industrial motor control interfaces requiring RTC, analog sensing, and UART/LIN communication.
For engineers reviewing the R5F104LEDFB#V0 datasheet, R5F104LEDFB#V0 pinout, R5F104LEDFB#V0 application, or R5F104LEDFB#V0 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, 48 KB code flash + 4 KB data flash, integrated 10-bit 20-channel ADC with internal reference, dual UART/LIN support, and -40°C to +85°C industrial temperature grade (D-grade).
Technical Context
The R5F104LEDFB#V0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and includes multiply/divide/accumulate instructions. Its memory subsystem integrates 48 KB on-chip flash (1 KB block size), 4 KB data flash with background operation (BGO), and 5.5 KB RAM.
Peripherals include eight 16-bit timer channels (TAU/Timer RJ/RD/RG), one 12-bit interval timer, calendar-mode RTC with alarm/correction, watchdog timer, 10-bit 20-channel ADC with internal 1.45 V reference and temperature sensor, two 8-bit DAC outputs, up to ten I²C/SimpI²C channels, four CSI/SPI channels, and three or four UART/LIN channels - all managed via Event Link Controller (ELC) and Data Transfer Controller (DTC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 44 DMIPS @ 32 MHz |
| Flash Memory | 48 KB code flash (1 KB erase blocks) + 4 KB data flash with BGO |
| RAM | 5.5 KB on-chip SRAM for program/data storage and stack |
| Supply Voltage | 1.6–5.5 V - enables direct interface with 1.8/2.5/3.3 V peripherals |
| Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE - supports battery-backed RTC + LVD |
| Analog Peripherals | 10-bit 20-channel ADC (VDD-referenced, internal 1.45 V ref, temp sensor), two 8-bit DACs |
| Serial Interfaces | 3× UART/LIN, 4× CSI/SPI, 4–10× I²C/SimpI²C - ELC-linked for low-CPU-overhead event chaining |
| Timers & Clock | 8× 16-bit timers, 1× 12-bit interval timer, calendar RTC (99-year), watchdog with dedicated sub-oscillator |
Pinout & Package
Package: 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed pad not present (non-HWQFN). Compliant with JEDEC MS-026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 | Crystal input | Connects to 32.768 kHz crystal for RTC and low-power clock source |
| P122 / X2 / EXCLK | Crystal output / external clock input | Drives 32.768 kHz crystal; also accepts external clock up to 1 MHz |
| P137 / INTP0 | Interrupt input | Dedicated wake-up interrupt pin with configurable sensitivity |
| P50 / INTP1 / SI00 / RxD0 | Multi-function I/O | Primary UART0 receive, SPI0 input, or external interrupt source |
| P51 / INTP2 / SO00 / TxD0 | Multi-function I/O | Primary UART0 transmit, SPI0 output, or external interrupt source |
| P30 / INTP3 / SCK00 / SCL00 | I²C/SPI clock | Shared clock line for I²C0 or SPI0 - supports multi-protocol reuse |
| P20 / ANI0 / AVREFP | Analog input / ADC reference | ADC channel 0 input or positive reference voltage for analog measurements |
| P21 / ANI1 / AVREFM | Analog input / ADC reference | ADC channel 1 input or negative reference voltage (differential mode) |
| REGC | Regulator bypass | Must connect 0.47–1 μF capacitor to VSS for internal voltage regulator stability |
| VDD / VSS | Power supply pins | Single 1.6–5.5 V supply; VSS serves as analog/digital ground reference |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 66 μA/MHz active current enables energy-efficient real-time processing in portable industrial sensors |
| Data flash with BGO | Allows concurrent code execution and non-volatile parameter updates - critical for field firmware calibration |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining eliminates CPU polling - reduces latency and ISR overhead in motor control loops |
| Peripheral I/O redirection | Dynamic remapping of functions (e.g., UART, SPI, timers) to alternate pins simplifies PCB layout and design reuse |
| Integrated LIN physical layer support | UART peripherals natively support LIN 2.2 protocol framing and checksum - no external transceiver needed for basic nodes |
| On-chip temperature sensor | Calibrated 10-bit ADC channel provides system thermal monitoring without external components |
Applications
| Industrial Motor Drive Interface | Smart HVAC Sensor Node |
|---|---|
Use Scenario: Real-time monitoring of motor current, temperature, and position feedback in BLDC inverter gate drivers. IC Role / Device Role / Timing Role: Main controller executing FOC algorithms, managing PWM timing via TAU, sampling analog signals via 10-bit ADC, and communicating status over UART/LIN. Use Value: 44 DMIPS + 8× 16-bit timers enable precise 20 kHz PWM generation and sub-millisecond current loop response. | Use Scenario: Battery-powered wall-mounted thermostat collecting ambient temperature, humidity (via I²C sensor), and user inputs. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, display driving, button debouncing, RTC-based scheduling, and wireless module wakeup via UART. Use Value: 0.60 μA STOP mode + integrated RTC extends coin-cell life beyond 5 years; 20-channel ADC supports multi-sensor fusion. |
| Programmable Logic Controller (PLC) I/O Module | Industrial Power Supply Monitor |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol handler and GPIO manager - receives commands via UART, drives opto-isolators, and logs events to data flash. Use Value: 4 KB data flash with 1M-cycle endurance stores 10,000+ timestamped fault records; ELC links UART RX interrupt to GPIO toggle for deterministic response. | Use Scenario: Monitoring rail voltages, fan speed, and thermal shutdown thresholds in telecom rectifiers and UPS systems. IC Role / Device Role / Timing Role: Analog supervisor - measures VDD, VBAT, and heatsink temp via ADC, triggers LVD reset at 1.8 V, and logs anomalies to data flash. Use Value: On-chip LVD with 14-level programmability enables precise brown-out detection across multiple rails without external comparators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LEAFB#V0 | Same 48 KB flash, 5.5 KB RAM, 64-pin LFQFP, but A-grade (-40°C to +85°C consumer temp range) | Not qualified for industrial environments requiring extended reliability validation | Select only for cost-sensitive commercial equipment with controlled ambient conditions |
| R5F104LGDFB#V0 | 128 KB flash, 12 KB RAM, same package and peripheral set - higher memory headroom | Suitable for applications needing larger bootloader, OTA update partition, or complex state machines | Choose when future firmware growth or dual-bank secure boot is required |
Compared with R5F104LEDFB#V0, R5F104LEAFB#V0 trades industrial temperature qualification for lower cost, while R5F104LGDFB#V0 adds 80 KB flash and 6.5 KB RAM without changing footprint or peripheral capability - enabling scalable firmware development across product tiers.
Availability
R5F104LEDFB#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart HVAC sensor nodes, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F104LEDFB#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G14 family targets cost-sensitive, ultra-low-power general-purpose applications - balancing performance, integration, and energy efficiency for industrial controls, appliances, and sensor edge nodes.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104LEDFB#V0?
The R5F104LEDFB#V0 operates at up to 32 MHz with a measured performance of 44 DMIPS. This rating is achieved using the RL78 CPU core's 3-stage pipeline and optimized instruction set, and is validated under standard test conditions (VDD = 3.3 V, TA = 25°C). The R5F104LEDFB#V0 maintains full peripheral functionality at this speed, including ADC sampling, UART transmission, and timer capture.
Does the R5F104LEDFB#V0 support hardware debugging, and what interface is used?
Yes, the R5F104LEDFB#V0 includes an on-chip debug function compatible with Renesas E2 emulator and E2 Lite debugger via the single-wire SWD interface. Debug access uses dedicated pins P40 (TOOL0) and P41 (TRJIO0), supporting breakpoints, watchpoints, register inspection, and flash programming - all without requiring additional debug circuitry or pins beyond the standard 64-pin LFQFP footprint.
What are the data flash endurance and rewrite voltage specifications for the R5F104LEDFB#V0?
The R5F104LEDFB#V0 integrates 4 KB of data flash rated for 1,000,000 write/erase cycles (typical) with background operation (BGO) support. Rewrites are guaranteed across the full supply range of VDD = 1.8 V to 5.5 V, enabling in-field parameter updates even during brownout conditions. The R5F104LEDFB#V0 implements flash shield window and block protection to prevent accidental erasure of critical configuration data.
How many UART/LIN channels does the R5F104LEDFB#V0 support, and are they hardware-LIN compliant?
The R5F104LEDFB#V0 supports three UART channels, each capable of LIN 2.2 protocol operation including automatic sync-break detection, checksum generation (classic/enhanced), and identifier filtering. No external LIN transceiver is required for basic node functionality, though a physical layer IC (e.g., TJA1020) is needed for bus termination and ESD protection in production systems using the R5F104LEDFB#V0.
What is the ADC resolution, input channel count, and reference voltage options available on the R5F104LEDFB#V0?
The R5F104LEDFB#V0 features a 10-bit successive-approximation ADC with 20 analog input channels. It supports VDD-referenced conversion, internal 1.45 V reference (calibrated), and external reference inputs (AVREFP/AVREFM). The ADC includes built-in temperature sensor functionality and supports scan mode with automatic channel sequencing - all accessible without CPU intervention via DTC triggering.
R5F104LEDFB#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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 5.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LEDFB#V0 FAQ
1.How can I place an order for R5F104LEDFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LEDFB#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 R5F104LEDFB#V0 reliable?
The price and inventory of R5F104LEDFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LEDFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F104LEDFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LEDFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LEDFB#V0?
R5F104LEDFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LEDFB#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 R5F104LEDFB#V0?
For technical support, including R5F104LEDFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LEDFB#V0 requirements.
6.How does Aetrix verify that R5F104LEDFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104LEDFB#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 R5F104LEDFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F104LEDFB#V0?
All R5F104LEDFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LEDFB#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 R5F104LEDFB#V0 part is unused and in its original packaging.
Return procedure for R5F104LEDFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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