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Renesas R5F104LEAFA#10
- Part No.:
- R5F104LEAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LEAFA#10.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:952
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Product details
Overview
R5F104LEAFA#10 from Renesas is a 48-pin LQFP-0.65 mm pitch, 48 KB flash, 5.5 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 battery-powered industrial sensor nodes and smart metering interfaces.
For engineers reviewing the R5F104LEAFA#10 datasheet, R5F104LEAFA#10 pinout, R5F104LEAFA#10 application, or R5F104LEAFA#10 equivalent, key selection criteria include its 48-pin LQFP package, 48 KB code flash with 4 KB data flash, integrated 10-bit 20-channel ADC, dual UART/LIN support, and -40°C to +85°C industrial temperature grade.
Technical Context
The R5F104LEAFA#10 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-power mode), plus multiply/divide/accumulate instructions and 1 MB address space.
It integrates a configurable peripheral set including Timer Array Unit (TAU) with up to 8 channels, Real-Time Clock with calendar/alarm, 12-bit interval timer, watchdog timer, and Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 44 DMIPS for real-time control loop execution |
| Flash Memory | 48 KB code flash + 4 KB data flash - supports background rewriting (BGO) and 1M write cycles |
| RAM | 5.5 KB on-chip RAM - sufficient for RTOS stacks and sensor data buffering |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC+LVD - enables multi-year battery life |
| Analog Peripherals | 10-bit 20-channel ADC with internal 1.45 V reference and temperature sensor |
| Serial Interfaces | 3 UART/LIN channels, 4–10 I²C channels, 3–8 CSI (SPI-compatible) channels |
Pinout & Package
Package: 48-pin LQFP, 10 × 10 mm body, 0.65 mm pitch, exposed pad not present (standard LQFP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; debug clock input - enables serial comms and timing capture |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; debug clock output - supports full-duplex comms and trace sync |
| P10–P17 | CSI1/SPI1, I²C1, UART2, TRDIOx | Multi-function serial interface bank - configurable as SPI master/slave, I²C, or LIN transceiver |
| P30 | INTP3 / RTC1HZ / SCK00 / SCL00 | RTC interrupt output + I²C clock - provides precise timekeeping signal and I²C bus control |
| P50/P51 | RxD0/TxD0 / SI00/SO00 / TOOLRxD/TOOLTxD | Dedicated debug UART + SPI port - enables in-circuit programming and firmware updates |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up - ensures reliable boot after brown-out or power-on |
| VDD / VSS | Power supply pins | Single 1.6–5.5 V rail - eliminates need for external regulators in wide-input systems |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF capacitor to VSS - stabilizes internal LDO for low-noise analog operation |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE mode operation | Permits ADC conversion or serial receive during low-power sleep - reduces wake-up latency by >90% |
| Data Flash BGO | Enables code execution from flash while rewriting data flash - eliminates interrupt latency during logging |
| Event Link Controller (ELC) | Hardware links peripherals (e.g., timer trigger → ADC start → DMA transfer) - offloads CPU, improves determinism |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt - protects against undervoltage corruption in battery systems |
| Peripheral I/O redirection | Dynamic remapping of functions (e.g., UART to alternate pins) - simplifies PCB layout and reuse |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Two-way communication and tariff calculation in DIN-rail mounted electricity meters with tamper detection. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing RS-485/LIN communication, and timestamping events via RTC. Use Value: 48 KB flash stores dual tariff logic and firmware updates; 10-bit ADC interfaces shunt/sensor inputs; low-power modes extend battery backup life. | Use Scenario: Wireless vibration/temperature node in predictive maintenance systems with local edge processing. IC Role / Device Role / Timing Role: Signal acquisition hub aggregating analog sensor data, performing FFT preprocessing, and scheduling BLE transmission bursts. Use Value: 20-channel ADC samples multiple sensors simultaneously; SNOOZE mode enables periodic wake-up without CPU overhead; UART/LIN supports gateway interfacing. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Motor control and user interface in inverter-driven HVAC compressors with fault logging. IC Role / Device Role / Timing Role: Real-time motor commutation controller with PWM generation, thermal monitoring, and EEPROM-based error history storage. Use Value: TAU timers deliver precise 3-phase PWM; data flash retains 1M-cycle fault logs; 0.60 μA STOP mode preserves settings during mains loss. | Use Scenario: DALI lighting controller with occupancy sensing, daylight harvesting, and network diagnostics. IC Role / Device Role / Timing Role: DALI transceiver host managing ballast addressing, dimming profiles, and ambient light integration via I²C. Use Value: 10 I²C channels interface light sensors, EEPROM, and touch controllers; ELC synchronizes ADC sampling with DALI frame timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LEAFB#30 | Same core, flash, RAM; LFQFP-48, 0.5 mm pitch instead of LQFP-48, 0.65 mm pitch | Requires PCB redesign for finer-pitch footprint and different thermal pad requirements | Select when board space constraints favor smaller package or existing LFQFP assembly lines are used |
| R5F104LGAFB#30 | 256 KB flash, 24 KB RAM, same 48-pin LFQFP-0.5 mm package | Supports larger firmware (e.g., embedded web server, OTA stack) but increases cost and power in idle states | Select when future firmware expansion or complex protocol stacks (Modbus TCP, MQTT) are planned |
Compared with R5F104LEAFA#10, R5F104LEAFB#30 offers identical functionality in a denser package requiring tighter layout tolerances, while R5F104LGAFB#30 trades higher memory capacity and cost for scalability in feature-rich building automation deployments.
Availability
R5F104LEAFA#10 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across extended product lifecycles.
Supply support for R5F104LEAFA#10 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 targets cost-sensitive, ultra-low-power general-purpose embedded applications requiring robust analog integration, flexible serial connectivity, and long-term supply stability.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104LEAFA#10?
The R5F104LEAFA#10 operates up to 32 MHz, achieving 44 DMIPS performance. Its RL78 CPU core uses a 3-stage pipeline and supports variable instruction timing - from 0.03125 µs at full speed to 30.5 µs in ultra-low-power 32.768 kHz mode - enabling dynamic trade-offs between throughput and energy efficiency in the R5F104LEAFA#10.
Does the R5F104LEAFA#10 support in-system programming and secure firmware updates?
Yes, the R5F104LEAFA#10 supports self-programming of both code and data flash memory with boot swapping and flash shield window protection. It includes an on-chip debug function accessible via dedicated TOOLRxD/TOOLTxD pins, allowing field firmware updates and secure code locking to prevent unauthorized access in deployed R5F104LEAFA#10 units.
What analog features are integrated into the R5F104LEAFA#10 for sensor interfacing?
The R5F104LEAFA#10 integrates a 10-bit resolution ADC with up to 20 input channels, internal 1.45 V reference voltage, and an on-chip temperature sensor. It also includes two comparator channels with selectable internal/external references and window mode - enabling direct analog signal conditioning and threshold detection without external components in R5F104LEAFA#10 designs.
How does the R5F104LEAFA#10 manage power in battery-operated applications?
The R5F104LEAFA#10 achieves ultra-low power via HALT, STOP, and SNOOZE modes: 66 μA/MHz active current, 0.60 μA in STOP mode with RTC + LVD active, and configurable voltage detector levels. Its SNOOZE mode allows ADC conversions or serial reception while CPU remains asleep - extending battery life in remote R5F104LEAFA#10 sensor nodes beyond five years.
Which serial communication protocols does the R5F104LEAFA#10 natively support?
The R5F104LEAFA#10 supports three UART/LIN channels (with automatic LIN header detection), four to ten I²C channels (including simplified I²C), and three to eight CSI channels (SPI-compatible). All are configurable via peripheral I/O redirection registers, enabling flexible pin assignment for R5F104LEAFA#10 designs without hardware changes.
R5F104LEAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Active
- 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:
R5F104LEAFA#10 FAQ
1.How can I place an order for R5F104LEAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LEAFA#10 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 R5F104LEAFA#10 reliable?
The price and inventory of R5F104LEAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LEAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F104LEAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LEAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LEAFA#10?
R5F104LEAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LEAFA#10 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 R5F104LEAFA#10?
For technical support, including R5F104LEAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LEAFA#10 requirements.
6.How does Aetrix verify that R5F104LEAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F104LEAFA#10 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 R5F104LEAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F104LEAFA#10?
All R5F104LEAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LEAFA#10, 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 R5F104LEAFA#10 part is unused and in its original packaging.
Return procedure for R5F104LEAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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