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Renesas R5F101LCAFB#50
- Part No.:
- R5F101LCAFB#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LCAFB#50.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
R5F101LCAFB#50 from Renesas is a 64-pin LFQFP-0.5mm-pitch 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, and 12 KB RAM, operating from 1.6 V to 5.5 V at up to 32 MHz (41 DMIPS), optimized for ultra-low-power industrial control applications including sensor nodes and battery-powered HMI.
For engineers reviewing the R5F101LCAFB#50 datasheet, R5F101LCAFB#50 pinout, R5F101LCAFB#50 application, or R5F101LCAFB#50 equivalent, key selection criteria include its 0.57 μA STOP-mode current, integrated RTC + LVD, 26-channel 10-bit ADC, dual UART/LIN support, and 64-pin LFQFP package with industrial-grade -40°C to +105°C operation.
Technical Context
The R5F101LCAFB#50 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 subsystem clock). It integrates a 12-bit interval timer, calendar-based real-time clock with alarm and correction, and watchdog timer powered by dedicated low-speed oscillator.
Its peripheral set includes up to 16 channels of 16-bit timers, 3–10 I²C/Simplified I²C channels, 2–4 UART/LIN interfaces, 2–8 CSI (SPI-compatible) channels, and DMA controller with 4 channels supporting 2-clock transfers between SFR and RAM - all designed for deterministic real-time response in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash / Data Flash / RAM | 128 KB code flash, 8 KB data flash (1M rewrite cycles), 12 KB SRAM |
| Supply Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8/2.5/3.3 V peripherals and single-supply battery operation |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE - supports multi-year battery life |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temperature sensor |
| Timers & RTC | 16× 16-bit timers, 1× 12-bit interval timer, 1× calendar RTC (99-year range, alarm, correction) |
| Serial Interfaces | Up to 4 UART/LIN, 10 I²C/Simplified I²C, 8 CSI (SPI-compatible) channels |
Pinout & Package
Package: 64-pin LFQFP, 10 mm × 10 mm, 0.5 mm pitch, exposed pad (PLQP0064KF-A), RoHS-compliant, industrial temperature grade (-40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core/peripheral rail decoupling; supports 1.6–5.5 V operation |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77 | General-purpose I/O ports | 64 total I/O pins; configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; supports different-potential interfacing |
| P20/ANI0/AVREFP, P21/ANI1/AVREFM | Analog input / ADC reference | Dedicated AVREFP/AVREFM pins enable precise ratiometric ADC measurements independent of VDD noise |
| P10/SCK00/SCL00, P11/SI00/RxD0/TOOLRxD/SDA00, P12/SO00/TxD0/TOOLTxD | CSI0 / UART0 / I²C0 shared pins | Multi-function pin mapping allows flexible peripheral assignment without external muxing |
| RESET, NMIX, INT0–INT7 | Reset and interrupt inputs | Hardware reset with on-chip POR/LVD; 8 external interrupt sources with priority control |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC and LVD active - enables decade-scale battery operation in metering and sensor edge devices |
| Self-programmable flash | On-chip boot swap and flash shield window support secure firmware updates without external programmer |
| Background data flash rewrite | BGO allows full CPU execution from program memory during 4–8 KB data flash writes - no runtime interruption |
| Integrated safety functions | On-chip voltage detector (14-level LVD), watchdog timer with independent oscillator, and flash security lock |
| Real-time clock with calendar | RTC maintains date/time across STOP mode with ±1 ppm accuracy (with external 32.768 kHz crystal) and auto-correction |
Applications
| Smart Energy Metering | Industrial HMI Panel |
|---|---|
Use Scenario: Battery-backed electricity/water/gas meter with tamper detection, pulse counting, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC timestamping, LIN/UART communication to concentrator, and secure flash storage of billing logs. Use Value: 0.57 μA STOP mode extends 10+ year battery life; 26-channel ADC supports multi-sensor monitoring; LIN compliance enables legacy utility network integration. |
Use Scenario: Local operator interface for PLC-controlled machinery with touch buttons, LED indicators, and status display. IC Role / Device Role / Timing Role: Real-time I/O coordinator handling keypad scan, LED PWM dimming, UART debug output, and RTC-driven event logging. Use Value: 64 GPIOs support direct matrix keypad + LED driver interface; 41 DMIPS ensures responsive UI rendering; -40°C to +105°C rating guarantees reliability in factory environments. |
| Wireless Sensor Node | Appliance Motor Control |
Use Scenario: BLE/Zigbee-connected environmental sensor (temp/humidity/pressure) with local data aggregation and wake-on-event. IC Role / Device Role / Timing Role: Low-power sensor hub acquiring analog/digital inputs, executing sensor fusion algorithms, and triggering radio wake-up via interrupt. Use Value: HALT mode at 66 μA/MHz minimizes active power; integrated temperature sensor reduces BOM; UART + I²C enable seamless connection to RF SoC. |
Use Scenario: Compact motor drive in HVAC blower, washing machine drum, or refrigerator compressor with speed feedback and fault protection. IC Role / Device Role / Timing Role: Motion controller generating complementary PWM outputs, reading hall sensors/encoders, and monitoring overcurrent via ADC. Use Value: 16× 16-bit timers provide precise PWM phase alignment; 10-bit ADC with 26 channels supports simultaneous current/voltage/temp sensing; LVD prevents brown-out latch-up during load transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LCAFB#50 | Includes 8 KB data flash; identical package, pinout, and peripheral set - differs only in data flash presence | Required where EEPROM-like nonvolatile parameter storage (e.g., calibration data, device ID) is needed | Select R5F100LCAFB#50 when background data flash rewrite (BGO) or 1M-cycle endurance is essential |
| R5F101LCDFB#50 | Same 128 KB flash, 12 KB RAM, and LFQFP-64 package; differs in data flash size (4 KB vs. 8 KB) and LVD level configuration | Suitable for cost-sensitive designs where <4 KB of parameter storage suffices and fewer LVD thresholds are acceptable | Choose R5F101LCDFB#50 to reduce unit cost while retaining identical timing, I/O, and power performance |
Compared with R5F100LCAFB#50, the R5F101LCAFB#50 omits data flash to lower cost and simplify firmware update logic, while matching all timing, I/O, and ultra-low-power specs; versus R5F101LCDFB#50, it provides double the data flash capacity and broader LVD configurability for robust field calibration.
Availability
R5F101LCAFB#50 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and wireless sensor node applications requiring stable component supply, long-term lifecycle support, and industrial-temperature-grade reliability.
Supply support for R5F101LCAFB#50 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 family delivers true low-power embedded control with integrated peripherals and robust safety features, targeting cost-sensitive industrial, consumer, and metering applications demanding long battery life and high reliability.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F101LCAFB#50?
The R5F101LCAFB#50 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. This benchmark reflects its RL78 CPU core's 3-stage pipeline efficiency and is validated under standard test conditions per Renesas documentation.
Does the R5F101LCAFB#50 include data flash memory, and what is its endurance specification?
No, the R5F101LCAFB#50 does not include data flash memory - it belongs to the "101" series, which omits this feature. The pin-compatible R5F100LCAFB#50 variant provides 8 KB of data flash rated for 1,000,000 write/erase cycles at VDD = 1.8–5.5 V.
What package type and thermal specifications apply to the R5F101LCAFB#50?
The R5F101LCAFB#50 uses a 64-pin LFQFP package (10 mm × 10 mm, 0.5 mm pitch, PLQP0064KF-A) rated for industrial operation from -40°C to +105°C. Its exposed pad enhances thermal dissipation, supporting continuous 32 MHz operation within ambient limits.
Which serial communication interfaces are supported on the R5F101LCAFB#50, and how many channels are available?
The R5F101LCAFB#50 supports up to 4 UART/LIN channels, up to 10 I²C/Simplified I²C channels, and up to 8 CSI (SPI-compatible) channels. Channel count depends on pin multiplexing and is fully configurable via software register settings per the RL78/G13 user's manual.
How does the R5F101LCAFB#50 achieve ultra-low power consumption in STOP mode?
The R5F101LCAFB#50 achieves 0.57 μA STOP-mode current by disabling the main system clock while retaining power to the real-time clock (RTC) module and low-voltage detector (LVD). This enables timekeeping and brown-out monitoring without waking the CPU - critical for decade-long battery operation.
R5F101LCAFB#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- 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:
- 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:
R5F101LCAFB#50 FAQ
1.How can I place an order for R5F101LCAFB#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LCAFB#50 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 R5F101LCAFB#50 reliable?
The price and inventory of R5F101LCAFB#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LCAFB#50 is usually 5 days.
3.What payment methods are accepted for R5F101LCAFB#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LCAFB#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LCAFB#50?
R5F101LCAFB#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LCAFB#50 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 R5F101LCAFB#50?
For technical support, including R5F101LCAFB#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LCAFB#50 requirements.
6.How does Aetrix verify that R5F101LCAFB#50 is sourced from the original manufacturer or authorized distributors?
All R5F101LCAFB#50 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 R5F101LCAFB#50 meets industry standards.
7.What is the process for return or replacement of R5F101LCAFB#50?
All R5F101LCAFB#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LCAFB#50, 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 R5F101LCAFB#50 part is unused and in its original packaging.
Return procedure for R5F101LCAFB#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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