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Renesas R5F101LLDFA#X0
- Part No.:
- R5F101LLDFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LLDFA#X0.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,138
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Product details
Overview
R5F101LLDFA#X0 from Renesas is a 64-pin LQFP-0.65mm, industrial-grade RL78/G13 16-bit microcontroller with 512 KB flash, 32 KB RAM, and no data flash memory. It operates from 1.6 V to 5.5 V, delivers 41 DMIPS at 32 MHz, and supports ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD). It targets battery-powered industrial sensors and smart metering systems requiring long runtime and robust timing.
For engineers reviewing the R5F101LLDFA#X0 datasheet, R5F101LLDFA#X0 pinout, R5F101LLDFA#X0 application, or R5F101LLDFA#X0 equivalent, key selection criteria include its 64-pin LQFP package, absence of on-chip data flash, industrial temperature range (−40°C to +85°C), integrated real-time clock with calendar, and support for LIN-bus UART and hardware multiplier.
Technical Context
The R5F101LLDFA#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling configurable instruction execution time from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It integrates a 12-bit interval timer, one real-time clock with calendar/alarm/correction, and a watchdog timer driven by a dedicated low-speed oscillator.
Its peripheral set includes up to 16 channels of 10-bit A/D converter with internal 1.45 V reference and temperature sensor, 8–16 channels of 16-bit timer, 2–4 DMA channels, and serial interfaces: CSI (SPI-like), UART/LIN (2–4 channels), and I²C/Simplified I²C (3–10 channels).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for deterministic real-time control |
| Flash Memory | 512 KB code flash - supports self-programming with boot swap and flash shield window |
| RAM Size | 32 KB on-chip RAM - sufficient for complex firmware stacks and data buffering |
| Supply Voltage Range | 1.6 V to 5.5 V - enables direct interface with diverse analog sensors and legacy logic |
| Operating Temperature | −40°C to +85°C (Industrial D-grade) - validated for factory automation and outdoor metering |
| Low-Power Modes | HALT/STOP/SNOOZE - achieves 0.57 μA in RTC+LVD-only mode for multi-year battery life |
Pinout & Package
Package: 64-pin LQFP, 12 × 12 mm, 0.65-mm pitch (PLQP0064JA-A), lead-free, RoHS-compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support noise isolation between analog and digital sections |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77 | General-purpose I/O ports | Up to 52 programmable I/O pins with N-ch open-drain, TTL input, and pull-up options; supports 1.8/2.5/3 V level shifting |
| P20/ANI0/AVREFP, P21/ANI1/AVREFM | Analog input / reference voltage terminals | Enable precision 10-bit A/D conversion with internal 1.45 V reference and differential measurement capability |
| P10/SCK00/SCL00, P11/SI00/RxD0/TOOLRxD/SDA00 | Serial interface multiplexed pins | Support concurrent CSI (SPI), I²C, and UART/LIN operation on shared physical lines |
| RTCCLK, RTCOUT | Real-time clock oscillator and output | Drive external 32.768 kHz crystal; provide calendar-corrected timekeeping independent of main CPU clock |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP modes | Reduces system standby current to sub-μA levels while preserving RAM and RTC state |
| Hardware multiplier/divider | Executes 16×16→32-bit multiply or 32÷32→32-bit divide in fixed cycles - accelerates motor control and filtering algorithms |
| Background data flash rewrite | Enables firmware updates without halting application code execution - critical for field-deployed devices |
| LIN-bus compliant UART | Meets ISO 17987-4 electrical and protocol requirements for automotive body electronics integration |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt threshold - prevents erratic behavior during brown-out conditions |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Residential and commercial electricity meters measuring voltage, current, and energy consumption over 10+ years on primary batteries. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing LCD display, communicating via RS-485/LIN, and maintaining accurate time-stamped logs. Use Value: 0.57 μA RTC+LVD mode extends battery life beyond 12 years; 10-bit A/D with internal reference ensures ±0.5% measurement accuracy across temperature. |
Use Scenario: Wireless vibration/temperature nodes deployed in factory machinery for predictive maintenance. IC Role / Device Role / Timing Role: Signal acquisition hub sampling analog sensors, performing FFT preprocessing, and scheduling low-duty-cycle RF transmission. Use Value: 41 DMIPS at 32 MHz enables real-time spectral analysis; SNOOZE mode allows rapid wake-on-interrupt with <2 μs latency. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine main control board managing motor drive, water valves, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Central MCU coordinating PWM motor control, touch-key scanning, buzzer feedback, and fault logging via UART. Use Value: Integrated 16-bit timers with dead-time insertion simplify BLDC commutation; on-chip BCD correction reduces firmware overhead for display formatting. |
Use Scenario: HVAC control panel integrating temperature/humidity sensing, relay actuation, and Modbus RTU communication. IC Role / Device Role / Timing Role: Real-time coordinator handling analog sensor reads, PID loop execution, relay timing, and serial protocol stack. Use Value: Dual UART channels allow simultaneous Modbus master/slave operation; −40°C to +85°C rating ensures reliability in unconditioned mechanical rooms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LLDFA#V0 | Identical silicon, tray packaging instead of embossed tape | No functional difference; suited for manual prototyping or low-volume assembly | Select #V0 for engineering samples or small-batch builds where tape-and-reel feeding is unnecessary |
| R5F100LLDFA#X0 | Same package and pinout, but includes 8 KB data flash memory | Required when non-volatile parameter storage (e.g., calibration data, device ID) must survive power loss without external EEPROM | Choose R5F100LLDFA#X0 if field-updatable configuration storage is mandatory; otherwise R5F101LLDFA#X0 reduces cost and simplifies BOM |
Compared with R5F101LLDFA#X0, the #V0 variant offers identical functionality in tray packaging for flexibility in early development, while the R5F100LLDFA#X0 adds 8 KB data flash-enabling secure parameter retention without external components but increasing unit cost and flash management complexity.
Availability
R5F101LLDFA#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and building automation systems requiring stable component supply, long-term lifecycle support, and industrial-temperature-rated MCUs.
Supply support for R5F101LLDFA#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 solutions for industrial, automotive, and IoT markets.
The RL78/G13 product line delivers true low-power 16-bit performance for cost-sensitive, battery-operated, and industrial control applications-balancing processing capability, peripheral richness, and energy efficiency.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F101LLDFA#X0?
The R5F101LLDFA#X0 operates at up to 32 MHz and delivers 41 DMIPS (Dhrystone MIPS) under standard test conditions. This performance level supports real-time control loops, communication protocol stacks, and signal processing tasks common in industrial and metering applications. The RL78 CPU core's 3-stage pipeline and optimized instruction set enable consistent throughput across varying workloads.
Does the R5F101LLDFA#X0 include on-chip data flash memory?
No, the R5F101LLDFA#X0 does not include on-chip data flash memory. Its part number encoding ('101' prefix) explicitly indicates data flash omission, distinguishing it from '100'-series variants like R5F100LLDFA#X0 which integrate 8 KB of data flash. Applications requiring non-volatile parameter storage must use external EEPROM or FRAM when selecting the R5F101LLDFA#X0.
What is the operating temperature range certified for the R5F101LLDFA#X0?
The R5F101LLDFA#X0 is rated for industrial operation from −40°C to +85°C (D-grade), as confirmed by Renesas' official ordering information and datasheet specifications. This range is validated across all electrical parameters and ensures reliable functionality in factory environments, outdoor utility enclosures, and HVAC mechanical spaces without derating.
Which serial communication protocols are supported by the R5F101LLDFA#X0?
The R5F101LLDFA#X0 supports CSI (SPI-compatible), UART/LIN (with ISO 17987-4 compliance), and I²C/Simplified I²C interfaces. It provides up to 2–4 UART channels (one LIN-capable), 2–8 CSI channels, and 3–10 I²C channels-enabling concurrent connectivity to displays, sensors, transceivers, and legacy peripherals without external protocol bridges.
What low-power modes are available on the R5F101LLDFA#X0, and what is the lowest achievable current draw?
The R5F101LLDFA#X0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws 0.57 μA (typical) at VDD = 3.0 V and TA = 25°C. This ultra-low quiescent current enables multi-year operation on coin-cell batteries in metering and sensor applications, with full register and RAM retention.
R5F101LLDFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- 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:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K 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:
R5F101LLDFA#X0 FAQ
1.How can I place an order for R5F101LLDFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LLDFA#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 R5F101LLDFA#X0 reliable?
The price and inventory of R5F101LLDFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LLDFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LLDFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LLDFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LLDFA#X0?
R5F101LLDFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LLDFA#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 R5F101LLDFA#X0?
For technical support, including R5F101LLDFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LLDFA#X0 requirements.
6.How does Aetrix verify that R5F101LLDFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LLDFA#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 R5F101LLDFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LLDFA#X0?
All R5F101LLDFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LLDFA#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 R5F101LLDFA#X0 part is unused and in its original packaging.
Return procedure for R5F101LLDFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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