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Renesas R5F104LEAFP#X0
- Part No.:
- R5F104LEAFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LEAFP#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,460
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Product details
Overview
R5F104LEAFP#X0 from Renesas Electronics is a 64-pin LQFP-0.65 mm pitch, 48 KB flash, 5.5 KB RAM RL78/G14 16-bit microcontroller operating from 1.6 V to 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 R5F104LEAFP#X0 datasheet, R5F104LEAFP#X0 pinout, R5F104LEAFP#X0 application, or R5F104LEAFP#X0 equivalent, key selection considerations include its 64-pin LQFP-0.65 mm package, 48 KB code flash + 4 KB data flash, integrated 10-bit 20-channel ADC, dual UART/LIN support, and real-time clock with calendar function for time-stamped telemetry.
Technical Context
The R5F104LEAFP#X0 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), and includes multiply/divide/accumulate instructions with 1 MB address space.
It integrates a configurable Data Transfer Controller (DTC) with chain transfer capability, Event Link Controller (ELC) for hardware-triggered peripheral linking (19–26 event sources), and background operation (BGO) for concurrent data flash rewriting while executing program code.
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 deterministic real-time control |
| Flash Memory | 48 KB code flash + 4 KB data flash - supports self-programming with boot swap and flash shield window |
| RAM | 5.5 KB on-chip RAM - sufficient for RTOS stacks and protocol buffers in edge-node applications |
| ADC | 10-bit resolution, 20-channel SAR ADC - includes internal 1.45 V reference and temperature sensor for calibration-free sensing |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE - enables multi-year battery life in periodic wake-up systems |
| Serial Interfaces | 3 UART/LIN channels, 4–10 I²C channels, 3–8 CSI (SPI-compatible) channels - supports mixed-protocol sensor aggregation |
Pinout & Package
Package: 64-pin LQFP, 0.65 mm pitch, 14 × 14 mm body size (Renesas code PLQP0064GA-A), RoHS-compliant, industrial-grade (-40°C to +85°C).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| P00 | ANI17/TI00/TxD1/TRGCLKA | Primary UART1 TX, timer input, or analog input - selectable via PIOR register for flexible peripheral routing |
| P16 | TI01/TO01/INTP5/TRDIOC0/IVREF0 | Timer channel A input/output with interrupt capability and internal voltage reference output - supports PWM generation and precision analog sensing |
| P60 | SCLA0 | I²C bus clock line - dedicated hardware interface for low-overhead sensor communication |
| P61 | SDAA0 | I²C bus data line - supports standard/fast-mode (100/400 kHz) with built-in slew-rate control |
| P121/P122 | X1/X2 | Crystal oscillator inputs - supports 32.768 kHz RTC crystal or up to 20 MHz main system crystal |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up - compatible with external supervisory circuits or manual reset buttons |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 66 μA/MHz enables energy-proportional processing in duty-cycled IoT endpoints |
| Data flash BGO | Background rewriting allows firmware updates without halting real-time tasks or losing sensor data |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining eliminates CPU polling overhead for time-critical signal chains |
| On-chip RTC with calendar | 99-year calendar, alarm, and clock correction supports timestamped logging without external RTC IC |
| Dual UART with LIN support | Two independent UART modules each supporting LIN 2.2 protocol - simplifies automotive-grade diagnostics and actuator control |
Applications
| Smart Utility Metering | Industrial Sensor Hub |
|---|---|
Use Scenario: Residential electricity/water meters requiring long-life battery operation and secure firmware updates. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, secure data flash storage, and time-synchronized RF transmission. Use Value: 0.60 μA STOP mode extends 10-year battery life; 4 KB data flash with 1M rewrite cycles stores lifetime calibration and usage logs. |
Use Scenario: Multi-sensor node aggregating temperature, humidity, and vibration data for predictive maintenance. IC Role / Device Role / Timing Role: Central aggregator running Modbus RTU over UART and I²C-based sensor reads with RTC-timestamped buffering. Use Value: 20-channel 10-bit ADC with internal reference eliminates external precision references; ELC links ADC triggers to DMA transfers for zero-CPU latency. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Washing machine main control board requiring motor timing, user interface, and safety monitoring. IC Role / Device Role / Timing Role: Real-time motor control via TO0x/TAU timers, key interrupt handling, and LVD-based brown-out protection. Use Value: 12-bit interval timer and watchdog with dedicated low-speed oscillator ensure fail-safe timeout recovery; N-ch open-drain I/O drives LED indicators directly. |
Use Scenario: HVAC control panel with display, button inputs, and RS-485 communication to central BMS. IC Role / Device Role / Timing Role: Interface controller managing UART-to-RS485 transceivers, buzzer output, and RTC-based scheduling. Use Value: Integrated PCLBUZ0/1 timers drive piezo buzzers without external drivers; 3 UART channels support simultaneous debug, BMS, and local UI traffic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LEAFB#X0 | Same core, flash, RAM, and peripherals; differs only in package - LFQFP-0.5 mm (7×7 mm) vs. LQFP-0.65 mm (14×14 mm) | Requires PCB redesign due to smaller footprint and finer pitch; suited for space-constrained designs | Select when board area is critical and re-layout is acceptable |
| R5F104LGAFP#X0 | Upgraded to 128 KB flash and 12 KB RAM; identical pinout, package, and peripheral set | Enables larger firmware (e.g., embedded web server, OTA stack) without changing layout or firmware porting effort | Select when future firmware expansion or enhanced data logging is anticipated |
Compared with R5F104LEAFP#X0, the R5F104LEAFB#X0 offers identical functionality in a denser package but demands tighter layout tolerances, while the R5F104LGAFP#X0 provides immediate headroom for feature-rich firmware without any hardware change - making it ideal for scalable product families.
Availability
R5F104LEAFP#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart utility metering, and home appliance control requiring stable component supply across multi-year production cycles.
Supply support for R5F104LEAFP#X0 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 family targets cost-sensitive, ultra-low-power general-purpose applications - designed to replace legacy 8/16-bit MCUs with enhanced integration, security, and energy efficiency for battery-operated and mains-powered edge devices.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104LEAFP#X0?
The R5F104LEAFP#X0 operates at up to 32 MHz, achieving 44 DMIPS (Dhrystone MIPS) 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 precise trade-offs between throughput and energy use in the R5F104LEAFP#X0.
Does the R5F104LEAFP#X0 support in-system programming and secure firmware updates?
Yes, the R5F104LEAFP#X0 supports full in-system programming via its on-chip debug interface and includes robust security features: block-level flash erase/write prohibition, flash shield window for protected code regions, and boot swap functionality for atomic firmware updates - all implemented in hardware without external components in the R5F104LEAFP#X0.
How many analog input channels does the R5F104LEAFP#X0 ADC support, and what reference options are available?
The R5F104LEAFP#X0 integrates a 10-bit successive approximation register (SAR) ADC with up to 20 analog input channels. It supports both external voltage references and an internal 1.45 V reference, plus an on-chip temperature sensor - allowing accurate, calibration-free measurements across varying supply voltages in the R5F104LEAFP#X0.
Can the R5F104LEAFP#X0 operate reliably in extended temperature environments?
The R5F104LEAFP#X0 is rated for industrial temperature range: –40°C to +85°C ('D' grade). It includes on-chip voltage detector (LVD) with 14 programmable threshold levels and power-on-reset (POR) circuitry - ensuring robust startup and brown-out recovery across thermal extremes in the R5F104LEAFP#X0.
What serial communication interfaces are integrated into the R5F104LEAFP#X0?
The R5F104LEAFP#X0 integrates three UART modules (with LIN 2.2 support), four to ten I²C channels, and three to eight CSI (SPI-compatible) interfaces. All are hardware-accelerated and configurable via the Event Link Controller (ELC) for autonomous peripheral triggering - reducing CPU load during sensor or display communication in the R5F104LEAFP#X0.
R5F104LEAFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- 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:
R5F104LEAFP#X0 FAQ
1.How can I place an order for R5F104LEAFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LEAFP#X0 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 R5F104LEAFP#X0 reliable?
The price and inventory of R5F104LEAFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LEAFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F104LEAFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LEAFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LEAFP#X0?
R5F104LEAFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LEAFP#X0 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 R5F104LEAFP#X0?
For technical support, including R5F104LEAFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LEAFP#X0 requirements.
6.How does Aetrix verify that R5F104LEAFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F104LEAFP#X0 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 R5F104LEAFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F104LEAFP#X0?
All R5F104LEAFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LEAFP#X0, 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 R5F104LEAFP#X0 part is unused and in its original packaging.
Return procedure for R5F104LEAFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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