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Renesas R5F101LHDFA#X0
- Part No.:
- R5F101LHDFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LHDFA#X0.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,814
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Product details
Overview
R5F101LHDFA#X0 from Renesas is a 64-pin LQFP-0.65mm, 128 KB flash, 8 KB RAM, RL78/G13 16-bit microcontroller with ultra-low-power operation (66 μA/MHz), real-time clock, 10-bit ADC (26 channels), and integrated UART/I²C/CSI interfaces - deployed in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F101LHDFA#X0 datasheet, R5F101LHDFA#X0 pinout, R5F101LHDFA#X0 application, or R5F101LHDFA#X0 equivalent, key selection criteria include its data flash omission (vs. R5F100LH), -40°C to +85°C industrial temperature grade, 64-pin LQFP package with 26-channel analog input support, and HALT/STOP/SNOOZE low-power modes for energy-constrained designs.
Technical Context
The R5F101LHDFA#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (@32 MHz high-speed oscillator) to 30.5 μs (@32.768 kHz subsystem clock). It integrates a 12-bit interval timer, calendar-based RTC with alarm and correction, and watchdog timer powered by dedicated low-speed on-chip oscillator.
Its peripheral set includes up to 16× 16-bit timers, 3–10× I²C/Simplified I²C channels, 2–4× UART/LIN-capable serial interfaces, and DMA controller with 2/4 channels enabling 2-clock transfers between SFR and RAM - all operating across 1.6–5.5 V supply with on-chip POR and 14-level LVD.
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 41 DMIPS for deterministic real-time control |
| Flash Memory | 128 KB code flash - supports block erase (1 KB), security lock, and self-programming with boot swap |
| Data Flash | Not integrated - distinguishes R5F101x from R5F100x family members |
| RAM Size | 8 KB on-chip RAM - sufficient for RTOS stacks and sensor data buffering |
| Analog Peripherals | 10-bit ADC with 26 input channels and internal 1.45 V reference voltage |
| Low-Power Modes | HALT (0.57 μA), STOP, and SNOOZE - enables multi-year battery life in metering applications |
Pinout & Package
64-pin LQFP package (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3. Pinout conforms to RL78/G13 64-pin standard configuration with dedicated AVREFP/AVREFM pins for ADC reference stability and P00–P17 port groups supporting N-ch open-drain, TTL input, and pull-up resistor configurations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support noise-isolated analog/digital operation |
| P00–P07 | Port 0 general-purpose I/O | Configurable as N-ch open drain (6 V tolerant) or with internal pull-up |
| P10/P11 | SCK00/SI00/RxD0/TOOLRxD/SDA00 | Multi-function pins enabling SPI master/slave, UART, and I²C communication |
| P20/P21 | ANI0/AVREFP, ANI1/AVREFM | Dedicated ADC reference inputs - critical for precision measurement accuracy |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/LVD assertion |
| CLKP/CLKM | External crystal oscillator terminals | Supports 32.768 kHz crystal for RTC or higher-frequency crystals up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT mode | 0.57 μA current draw with RTC + LVD active - enables decade-scale coin-cell operation |
| On-chip high-accuracy oscillator | +/-1.0% tolerance over 1.8–5.5 V and -20 to +85°C - eliminates external crystal for cost-sensitive designs |
| Background operation (BGO) | Not applicable - R5F101LHDFA#X0 lacks data flash, so BGO is not implemented |
| Real-time clock (RTC) | Calendar function (99 years), alarm, and clock correction - reduces host MCU overhead in time-stamped logging |
| DMA controller | 2-channel DMA with 2-clock transfer latency - offloads CPU during sensor data acquisition or communication bursts |
| Different-potential interface | IO pins tolerate 1.8/2.5/3.0 V logic levels - simplifies interfacing with mixed-voltage peripherals |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Wireless temperature/humidity node with LoRaWAN backhaul and 10-year battery life. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-timed wake-up, low-power sleep sequencing, and UART-to-LoRa module interface. Use Value: HALT mode current (0.57 μA) and integrated RTC enable precise duty-cycled operation without external timing components. |
Use Scenario: DIN-rail mounted electricity meter with tariff switching, tamper detection, and secure firmware updates. IC Role / Device Role / Timing Role: Primary metering controller executing metrology algorithms, managing EEPROM-less parameter storage via code flash wear leveling, and handling IR/RS-485 communications. Use Value: 128 KB flash supports dual-bank firmware update; 26-channel ADC accommodates voltage/current/neutral sensing with internal reference stability. |
| Home Appliance Control | Building Automation Controller |
Use Scenario: Washing machine main board requiring motor control, user interface, and safety monitoring. IC Role / Device Role / Timing Role: Central MCU coordinating PWM-driven triac control, capacitive touch sensing, buzzer output, and fault-safe shutdown via LVD interrupt. Use Value: On-chip buzzer output controller and 16× 16-bit timers simplify motor phase timing and UI feedback without external drivers. |
Use Scenario: HVAC zone controller with temperature setpoint scheduling, damper actuation, and BACnet MS/TP communication. IC Role / Device Role / Timing Role: Real-time scheduler managing 15-minute HVAC cycles, reading thermistor networks via 10-bit ADC, and driving RS-485 transceivers via UART with LIN support. Use Value: 4× UART channels allow concurrent BACnet, debug, and local display interfaces; -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 |
|---|---|---|---|
| R5F100LHDFA#X0 | Includes 4 KB data flash and same 128 KB code flash, 8 KB RAM, identical pinout and peripherals | Required where field firmware updates or parameter logging to data flash are needed | Select when non-volatile parameter storage beyond code flash is mandatory |
| R5F101LHDFA#V0 | Identical silicon functionality; differs only in packaging - tray vs. embossed tape | No functional difference; suited for manual prototyping or small-batch assembly | Choose for evaluation or low-volume production where tape-and-reel is unnecessary |
Compared with R5F100LHDFA#X0, the R5F101LHDFA#X0 omits data flash to reduce cost and die size while retaining full code flash, RAM, and peripheral compatibility - making it optimal for fixed-function applications. Compared with R5F101LHDFA#V0, it offers identical electrical and thermal performance but optimized for automated SMT line feeding via embossed tape.
Availability
R5F101LHDFA#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and home appliance control systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F101LHDFA#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs targeting cost-sensitive, battery-operated, and industrial control applications - emphasizing energy efficiency, integration, and ease of migration within the RL78 ecosystem.
FAQ
What is the key functional difference between R5F101LHDFA#X0 and R5F100LHDFA#X0?
The R5F101LHDFA#X0 lacks integrated data flash memory (4 KB in R5F100LHDFA#X0), reducing cost and die area while retaining identical 128 KB code flash, 8 KB RAM, peripherals, and pinout. This makes R5F101LHDFA#X0 ideal for fixed-function applications where runtime parameter storage isn't required - preserving full software compatibility with R5F100 variants except for data flash-dependent routines.
Does R5F101LHDFA#X0 support real-time clock (RTC) with calendar functionality?
Yes, R5F101LHDFA#X0 includes a full-featured RTC with calendar support for 99 years, alarm generation, and clock correction - all operational in HALT mode with only 0.57 μA current draw. The RTC uses the dedicated 32.768 kHz subsystem clock and requires no external components when paired with an external crystal on CLKP/CLKM pins.
What package type and pin count does R5F101LHDFA#X0 use?
R5F101LHDFA#X0 uses a 64-pin LQFP package with 0.65-mm pitch (12 × 12 mm body), identified by the "FA" suffix per Renesas naming convention. It is supplied in embossed tape (#X0), optimized for automated SMT placement. The pinout matches the standard RL78/G13 64-pin configuration, including dedicated AVREFP/AVREFM pins for ADC reference stability.
Can R5F101LHDFA#X0 operate across the full industrial temperature range?
Yes, R5F101LHDFA#X0 is rated for -40°C to +85°C ambient operation (industrial "D" grade), validated across its entire 1.6–5.5 V supply range. This includes guaranteed performance of all peripherals - ADC accuracy, oscillator stability, flash programming, and low-power modes - making it suitable for deployment in harsh environments such as factory floors, outdoor utility enclosures, and HVAC equipment.
How many analog input channels does R5F101LHDFA#X0 support, and what ADC resolution is provided?
R5F101LHDFA#X0 supports up to 26 analog input channels with a 10-bit successive approximation ADC. It includes an internal 1.45 V reference voltage source and dedicated AVREFP/AVREFM pins for external reference flexibility. The ADC operates across the full 1.6–5.5 V VDD range, enabling direct sensing of sensors with varying output scales without external signal conditioning in many cases.
R5F101LHDFA#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:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K 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:
R5F101LHDFA#X0 FAQ
1.How can I place an order for R5F101LHDFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LHDFA#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 R5F101LHDFA#X0 reliable?
The price and inventory of R5F101LHDFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LHDFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LHDFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LHDFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LHDFA#X0?
R5F101LHDFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LHDFA#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 R5F101LHDFA#X0?
For technical support, including R5F101LHDFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LHDFA#X0 requirements.
6.How does Aetrix verify that R5F101LHDFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LHDFA#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 R5F101LHDFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LHDFA#X0?
All R5F101LHDFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LHDFA#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 R5F101LHDFA#X0 part is unused and in its original packaging.
Return procedure for R5F101LHDFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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