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Renesas R5F100LCAFB#50
- Part No.:
- R5F100LCAFB#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LCAFB#50.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F100LCAFB#50 from Renesas is a 64-pin, 512 KB flash, 8 KB data flash, 32 KB RAM RL78/G13 16-bit microcontroller with ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode), 1.6–5.5 V supply, and integrated peripherals including 16-bit timers, 10-bit ADC (26 channels), UART/LIN, I²C, CSI, RTC, and DMA. It targets battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F100LCAFB#50 datasheet, R5F100LCAFB#50 pinout, R5F100LCAFB#50 application, or R5F100LCAFB#50 equivalent, key selection criteria include its 64-pin LFQFP-0.5 mm package, industrial-grade -40°C to +105°C operation (G-grade), on-chip debug support, and self-programmable flash with boot swap capability.
Technical Context
The R5F100LCAFB#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 high-accuracy ±1.0% on-chip oscillator (1–32 MHz selectable) and dedicated low-speed oscillator for watchdog and RTC.
Power management includes HALT, STOP, and SNOOZE modes, POR, and 14-level LVD with interrupt/reset options. Memory subsystem comprises 512 KB code flash (1 KB block size), 8 KB data flash with background operation (BGO) and 1M rewrite cycles, and 32 KB SRAM - with flash library RAM usage mapped to address F7F00H per device family documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at low power. |
| Flash Memory | 512 KB code flash + 8 KB data flash; supports secure block erase prohibition and self-programming with boot swap. |
| RAM | 32 KB on-chip SRAM; includes dedicated flash library RAM area starting at F7F00H for safe BGO operation. |
| Operating Voltage | 1.6 V to 5.5 V; allows direct interface with 1.8 V, 2.5 V, and 3.3 V peripherals without level shifters. |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD active - critical for multi-year battery life. |
| ADC | 10-bit resolution, 26-channel SAR ADC with internal 1.45 V reference and temperature sensor; eliminates external reference need. |
| Timers & RTC | 16 × 16-bit timers, 12-bit interval timer, calendar RTC (99-year range, alarm, correction); enables precise time-stamped logging and scheduling. |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade G-temp (-40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared pin supports dual serial protocols; requires software-configurable peripheral routing. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function input pin enabling flexible peripheral mapping and debug interface (TOOLRxD). |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Enables single-pin ADC reference sourcing or analog sensing; reduces external component count. |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Provides differential reference capability or second analog channel; supports ratiometric measurements. |
| P30/INTP0/CLK0 | External Interrupt 0 / Subsystem Clock Input | Allows wake-up from STOP mode via external event or precision 32.768 kHz crystal input for RTC. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC + LVD active - extends battery life in always-on monitoring applications. |
| Data flash BGO | Execute code from program memory while rewriting 8 KB data flash; enables seamless firmware updates and data logging. |
| On-chip debug interface | Fully integrated with E1/E20 emulators; eliminates need for external debug headers or JTAG adapters. |
| Multi-protocol serial interfaces | Up to 10 I²C, 4 UART/LIN, and 8 CSI channels - supports mixed-protocol sensor networks and automotive diagnostics. |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations - accelerates motor control and signal processing loops. |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered gas/water meter with hourly pulse counting, temperature compensation, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing RTC-based reporting intervals, and handling SPI-connected metrology ICs. Use Value: 0.57 μA STOP mode enables >10-year battery life; integrated 10-bit ADC with temp sensor eliminates calibration drift compensation hardware. |
Use Scenario: Wireless vibration/temperature node in predictive maintenance system deployed in factory machinery. IC Role / Device Role / Timing Role: Edge data aggregator sampling analog sensors via 26-channel ADC, running FFT preprocessing, and transmitting via UART-to-LoRa module. Use Value: 32 KB RAM accommodates real-time signal buffers; BGO data flash enables over-the-air firmware updates without interrupting sensor acquisition. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Washing machine main board managing motor drive, water valve timing, and user interface with touch keys. IC Role / Device Role / Timing Role: Real-time motor control unit using 16-bit timers for PWM generation and key interrupt for capacitive touch detection. Use Value: On-chip key interrupt function reduces MCU polling overhead; N-ch open-drain I/O supports direct connection to 3 V touch controllers. |
Use Scenario: HVAC zone controller interfacing with thermostats, dampers, and BACnet MS/TP bus. IC Role / Device Role / Timing Role: Protocol bridge translating Modbus RTU over RS-485 to local I²C sensor network and RTC-synchronized log storage. Use Value: Dual UART with LIN support enables legacy bus compatibility; 512 KB flash hosts full BACnet stack plus field-upgradable configuration profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LCGFB#50 | G-grade (−40°C to +105°C) with same 512 KB flash, 8 KB data flash, 32 KB RAM, and LFQFP-64 package; differs only in marking and test flow - identical electrical and thermal specs. | No functional difference; used interchangeably in industrial designs requiring extended temperature qualification. | Select R5F100LCGFB#50 when explicit G-grade certification documentation is required by end-customer QA. |
| R5F101LCAFB#50 | Same package and pinout but lacks data flash memory (0 KB); retains 512 KB code flash, 32 KB RAM, and identical peripherals. | Not suitable for applications requiring nonvolatile parameter storage or firmware update staging; limited to code-only deployments. | Choose R5F101LCAFB#50 only if data flash functionality is unused and BOM cost reduction is prioritized over future firmware flexibility. |
Compared with R5F100LCGFB#50, the R5F100LCAFB#50 offers identical performance and packaging but is qualified for A/D-grade operation (−40°C to +85°C), making it suitable for consumer and commercial equipment; versus R5F101LCAFB#50, it provides essential data flash for field-upgradable systems without requiring external EEPROM.
Availability
R5F100LCAFB#50 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation systems requiring stable component supply across long production lifecycles.
Supply support for R5F100LCAFB#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 industrial, automotive, and IoT markets.
The RL78/G13 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained embedded applications requiring rich peripheral integration and long-term reliability.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F100LCAFB#50?
The R5F100LCAFB#50 operates up to 32 MHz using its high-accuracy on-chip oscillator (±1.0% over −20°C to +85°C). At this frequency, active current is 66 μA/MHz - resulting in approximately 2.1 mA total at 32 MHz with typical peripheral enablement. STOP mode draws just 0.57 μA with RTC and LVD active, verified per R01DS0131EJ0380 Rev.3.80.
Does the R5F100LCAFB#50 support in-system programming and secure firmware updates?
Yes, the R5F100LCAFB#50 supports full in-system programming via its on-chip debug interface and includes flash shield window and block erase prohibition features for IP protection. Self-programming with boot swap function enables fail-safe firmware updates - critical for remote-deployed devices where recovery from corrupted code is mandatory.
How many analog input channels does the R5F100LCAFB#50 provide, and what ADC resolution is supported?
The R5F100LCAFB#50 integrates a 10-bit successive approximation register (SAR) ADC with up to 26 configurable analog input channels. It includes an internal 1.45 V reference voltage and on-die temperature sensor - both accessible via dedicated pins (P20/AVREFP, P21/AVREFM, and ANIxx) - eliminating need for external references in most sensing applications.
What serial communication interfaces are available on the R5F100LCAFB#50, and how are they allocated across pins?
The R5F100LCAFB#50 supports up to 10 I²C channels, 4 UART/LIN channels, and 8 CSI (SPI-compatible) channels. Pin allocation is flexible: for example, P10 serves as SCK00 (CSI) or SCL00 (I²C), and P11 serves as SI00 (CSI), RxD0 (UART), TOOLRxD (debug), or SDA00 (I²C). Peripheral routing is configured via software registers, not fixed pin assignments.
Is the R5F100LCAFB#50 pin-compatible with other RL78/G13 variants in the same package?
Yes, all RL78/G13 devices in the 64-pin LFQFP-0.5 mm package (e.g., R5F100LCAFB#50, R5F100LCGFB#50, R5F101LCAFB#50) share identical pinouts and mechanical footprint. Electrical differences - such as data flash presence or temperature grade - do not affect PCB layout, enabling design reuse across performance and qualification tiers.
R5F100LCAFB#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:
- 4K x 8
- 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:
R5F100LCAFB#50 FAQ
1.How can I place an order for R5F100LCAFB#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LCAFB#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 R5F100LCAFB#50 reliable?
The price and inventory of R5F100LCAFB#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LCAFB#50 is usually 5 days.
3.What payment methods are accepted for R5F100LCAFB#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LCAFB#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LCAFB#50?
R5F100LCAFB#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LCAFB#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 R5F100LCAFB#50?
For technical support, including R5F100LCAFB#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LCAFB#50 requirements.
6.How does Aetrix verify that R5F100LCAFB#50 is sourced from the original manufacturer or authorized distributors?
All R5F100LCAFB#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 R5F100LCAFB#50 meets industry standards.
7.What is the process for return or replacement of R5F100LCAFB#50?
All R5F100LCAFB#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LCAFB#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 R5F100LCAFB#50 part is unused and in its original packaging.
Return procedure for R5F100LCAFB#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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