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Renesas R5F101LCAFA#V0
- Part No.:
- R5F101LCAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LCAFA#V0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,269
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Product details
Overview
R5F101LCAFA#V0 from Renesas is a 64-pin LQFP-0.65mm, 16 KB flash, no data flash, industrial-grade RL78/G13 16-bit MCU operating from 1.6–5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD), used in battery-powered sensor nodes and smart metering interfaces.
For engineers reviewing the R5F101LCAFA#V0 datasheet, R5F101LCAFA#V0 pinout, R5F101LCAFA#V0 application, or R5F101LCAFA#V0 equivalent, key selection criteria include its 64-pin LQFP package, absence of on-chip data flash, -40°C to +85°C industrial temperature grade, and support for UART/LIN, I²C, and 10-bit ADC across 26 channels.
Technical Context
The R5F101LCAFA#V0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, real-time clock with calendar/alarm, and watchdog timer driven by a dedicated low-speed oscillator.
It features 26-channel 10-bit A/D conversion with internal 1.45 V reference and temperature sensor, 8–16 channels of 16-bit timers, up to 10 I²C/Simplified I²C interfaces, and DMA controller with 2 channels - all optimized for deterministic real-time control in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for real-time control loop execution |
| Flash Memory | 16 KB code flash - sufficient for compact firmware with bootloader and safety checks |
| Data Flash | Not integrated - requires external nonvolatile storage for parameter logging or calibration |
| RAM Size | 2 KB on-chip RAM - supports small real-time task stacks and buffer management |
| Supply Voltage Range | 1.6 V to 5.5 V - enables direct operation from single Li-ion, 3.3 V, or 5 V rails |
| Low-Power Modes | HALT, STOP, SNOOZE - achieves 0.57 μA RTC+LVD retention for multi-year battery life |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, JEDEC-standard footprint compatible with automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared pin for master clock output in SPI or bidirectional clock line in I²C mode |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function input pin supporting serial receive, SPI data-in, and I²C bidirectional data |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Primary analog channel input or selectable positive reference for ADC voltage measurement |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Secondary analog input or negative reference for differential ADC measurements |
| P22/ANI2 | Analog Input 2 | Dedicated analog input channel supporting 10-bit resolution with internal temperature sensor |
| RESET | Active-Low Reset Input | Asynchronous reset pin accepting external pull-up and debounced reset signals |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP modes | Enables sub-μA system sleep states while retaining RAM and RTC, critical for energy harvesting designs |
| On-chip high-accuracy oscillator | +/-1.0% tolerance over -20°C to +85°C eliminates need for external crystal in cost-sensitive applications |
| 10-bit A/D converter with temp sensor | 26-channel ADC with internal 1.45 V reference and factory-calibrated temperature sensor simplifies thermal monitoring |
| LIN bus-compatible UART | Hardware LIN protocol support enables direct integration into automotive body electronics without external transceivers |
| Self-programmable flash with security | Boot swap and flash shield window allow secure firmware updates and protection against unauthorized reprogramming |
Applications
| Smart Home Sensor Hub | Industrial Motor Controller |
|---|---|
|
Use Scenario: Central node aggregating temperature, humidity, and motion data from multiple wireless sensors before forwarding via UART to gateway. IC Role / Device Role / Timing Role: Main system controller executing sensor polling, data fusion, and serial protocol framing at 32 MHz. Use Value: 26-channel 10-bit ADC and 2–4 UART channels enable concurrent interface to diverse analog/digital sensors without external mux or bridge ICs. |
Use Scenario: Closed-loop speed regulation of BLDC motor using hall-effect feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Real-time motor control unit managing 16-bit timer-based PWM generation and ADC sampling synchronized to commutation events. Use Value: 16-channel 16-bit timers with dead-time insertion and 66 μA/MHz active current reduce thermal load and extend runtime in fan-cooled enclosures. |
| Energy Meter Interface Module | Medical Wearable Monitor |
|
Use Scenario: Isolated communication interface between metrology ASIC and host microcontroller in Class 0.5S electricity meters. IC Role / Device Role / Timing Role: Secure data relay processor handling encrypted SPI reads from metrology IC and I²C writes to display/status peripherals. Use Value: On-chip flash security (block erase prohibition) and 1.6–5.5 V operation ensure compliance with IEC 62056 and long-term reliability under fluctuating supply conditions. |
Use Scenario: Low-power physiological signal acquisition in wrist-worn pulse oximeter with optical LED drive and photodiode amplification. IC Role / Device Role / Timing Role: Signal conditioning and battery management controller performing ADC sampling, LVD monitoring, and RTC-timed periodic wake-ups. Use Value: 0.57 μA RTC+LVD retention mode extends coin-cell battery life beyond 2 years while maintaining accurate time-stamped health logs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LCAFA#V0 | Includes 4 KB data flash; identical pinout and code flash size (16 KB) | Supports in-field parameter storage without external EEPROM | Select when nonvolatile configuration storage is required alongside same MCU footprint |
| R5F101LCDFB#V0 | 64-pin LFQFP (0.5-mm pitch); same memory and peripherals but different package | Higher-density PCB layout; not drop-in compatible with LQFP-0.65mm footprints | Choose only if board redesign accommodates finer-pitch QFP and tighter routing constraints |
Compared with R5F100LCAFA#V0, the R5F101LCAFA#V0 trades data flash for lower BOM cost and reduced firmware complexity; versus R5F101LCDFB#V0, it offers mechanical compatibility with standard 0.65-mm pitch LQFP assembly processes while maintaining identical peripheral set and power profile.
Availability
R5F101LCAFA#V0 is available at Aetrix Electronics and suitable for smart home sensor hubs, industrial motor controllers, and medical wearable monitors requiring stable component supply, long-lifecycle support, and industrial-grade temperature performance.
Supply support for R5F101LCAFA#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 specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.
The RL78/G13 product line delivers true low-power 16-bit MCUs targeting cost-sensitive, battery-operated, and thermally constrained embedded applications where efficiency, integration, and qualification rigor are essential.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F101LCAFA#V0?
The R5F101LCAFA#V0 operates at up to 32 MHz and delivers 41 DMIPS performance per the RL78/G13 datasheet. This metric reflects integer computational throughput under benchmark conditions and supports real-time control tasks such as PID loops, sensor fusion, and protocol stack processing within tight timing budgets.
Does the R5F101LCAFA#V0 include on-chip data flash memory?
No, the R5F101LCAFA#V0 does not integrate data flash memory. The "101" in the part number explicitly denotes absence of data flash, distinguishing it from "100" variants like R5F100LCAFA#V0 which include 4 KB. Firmware must use external nonvolatile storage or SRAM with backup for parameter retention.
What package type and pin count does the R5F101LCAFA#V0 use?
The R5F101LCAFA#V0 uses a 64-pin LQFP package with 0.65-mm pitch, identified by the "FA" suffix and "#V0" tray packaging code. Its mechanical dimensions are 12 × 12 mm, and it complies with JEDEC MS-026 standards for surface-mount assembly and reflow compatibility.
What is the operating temperature range specified for the R5F101LCAFA#V0?
The R5F101LCAFA#V0 is rated for industrial operation from -40°C to +85°C, indicated by the "D" grade in the family naming convention. This range is validated per AEC-Q100 stress testing protocols and supports deployment in factory automation, building controls, and outdoor metering equipment.
Which serial communication interfaces are supported by the R5F101LCAFA#V0?
The R5F101LCAFA#V0 supports up to 2–4 UART channels (with LIN-bus capability), 3–10 I²C/Simplified I²C interfaces, and 2–8 CSI (SPI-compatible) channels. These are configurable via register settings and pin multiplexing, enabling flexible connectivity to displays, sensors, transceivers, and legacy peripherals without external level shifters.
R5F101LCAFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- 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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K 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:
R5F101LCAFA#V0 FAQ
1.How can I place an order for R5F101LCAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LCAFA#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 R5F101LCAFA#V0 reliable?
The price and inventory of R5F101LCAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LCAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F101LCAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LCAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LCAFA#V0?
R5F101LCAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LCAFA#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 R5F101LCAFA#V0?
For technical support, including R5F101LCAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LCAFA#V0 requirements.
6.How does Aetrix verify that R5F101LCAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101LCAFA#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 R5F101LCAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F101LCAFA#V0?
All R5F101LCAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LCAFA#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 R5F101LCAFA#V0 part is unused and in its original packaging.
Return procedure for R5F101LCAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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