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Renesas R5F100LDDFB#X0
- Part No.:
- R5F100LDDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LDDFB#X0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,877
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Product details
Overview
R5F100LDDFB#X0 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit MCU with 128 KB code flash, 8 KB data flash, 12 KB RAM, 32 MHz max CPU speed, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It targets battery-powered industrial sensors and smart metering interfaces requiring long runtime and robust timing.
For engineers reviewing the R5F100LDDFB#X0 datasheet, R5F100LDDFB#X0 pinout, R5F100LDDFB#X0 application, or R5F100LDDFB#X0 equivalent, key selection criteria include its integrated real-time clock with calendar/alarm, 26-channel 10-bit ADC with internal temperature sensor, dual UART/LIN support, and HALT/STOP/SNOOZE low-power modes for energy-constrained embedded control.
Technical Context
The R5F100LDDFB#X0 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 on-chip debug, self-programming flash with boot swap, and background operation for data flash rewriting while executing code.
Its peripheral set includes up to 16× 16-bit timers, 1× 12-bit interval timer, 1× real-time clock with calendar and clock correction, 1× watchdog timer, and serial interfaces: 2–4 UART/LIN channels, 3–10 I²C channels, and 2–8 CSI (SPI-compatible) channels - all configurable for mixed-signal industrial I/O consolidation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and variable instruction timing (0.03125–30.5 μs) |
| Max Clock Speed | 32 MHz - enables 41 DMIPS performance for real-time control loops and protocol stacks |
| Memory | 128 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), 12 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD - extends battery life in always-on sensing |
| Analog Peripherals | 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor; supports simultaneous sampling |
| Serial Interfaces | 4 UART/LIN channels (LIN 2.2 compliant), 10 I²C channels, 8 CSI channels - sufficient for multi-sensor bus aggregation |
| Operating Range | −40°C to +85°C (Industrial D-grade); 1.6–5.5 V supply - compatible with wide-input industrial power rails |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| 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 |
| P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67 | 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 1.8/2.5/3 V logic interfacing |
| P10/SCK00/SCL00 P11/SI00/RxD0/TOOLRxD/SDA00 P12/SO00/TxD0/TOOLTxD |
CSI0 / UART0 / I²C0 shared pins | Multi-function pin grouping enables flexible peripheral assignment without external muxing |
| P30/INTP0 P31/INTP1 P32/INTP2 P33/INTP3 P34/INTP4 P35/INTP5 |
External interrupt inputs | 6 dedicated edge-triggered interrupt pins for fast response to external events (e.g., fault detection, button press) |
| P50/RTCCLK P51/RTCVCC |
Real-time clock oscillator and backup supply | Supports external 32.768 kHz crystal or internal oscillator; RTCVCC enables battery-backed timekeeping |
| P60/AVREFP P61/AVREFM |
Analog voltage reference inputs | Accept external reference or use internal 1.45 V; enable precise ADC measurements across supply variations |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC + LVD active - enables >10-year battery life in metering applications using coin cells |
| Background data flash rewrite | Execute code from program memory while updating 8 KB data flash - enables seamless firmware parameter updates |
| Integrated LIN transceiver support | UART0 with LIN break detection and sync field generation - eliminates need for external LIN PHY in automotive body electronics |
| On-chip temperature sensor | Calibrated 10-bit ADC channel with ±2°C accuracy - provides system thermal monitoring without external components |
| Hardware DMA controller | 4-channel DMA with 2-clock transfer between SFR and RAM - offloads CPU during high-bandwidth ADC or UART transfers |
| Flash security functions | Block erase/write prohibition and flash shield window - prevents unauthorized firmware extraction or modification |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Residential electricity meter with pulse counting, tariff switching, and wireless reporting. IC Role / Device Role / Timing Role: Main controller managing metrology IC interface, RTC-based billing intervals, and sub-GHz RF module timing. Use Value: 128 KB flash stores multiple tariff tables and encryption keys; 0.57 μA STOP mode enables >15-year battery backup for timekeeping during mains failure. |
Use Scenario: Wireless vibration/temperature node in predictive maintenance systems. IC Role / Device Role / Timing Role: Signal acquisition hub aggregating analog sensor data, performing FFT preprocessing, and scheduling BLE transmissions. Use Value: 26-channel 10-bit ADC samples multi-axis accelerometers and thermistors simultaneously; SNOOZE mode reduces average current to <5 μA between wake-ups. |
| Home Appliance Control | Automotive Body Electronics |
|
Use Scenario: Washing machine main board controlling motor drive, water valves, and user interface. IC Role / Device Role / Timing Role: Real-time coordinator of PWM motor control, touch-key scanning, and display refresh via SPI. Use Value: 16× 16-bit timers generate precise motor phase signals; built-in buzzer output controller drives audible alerts without external driver. |
Use Scenario: LIN-connected door module managing window lift, mirror adjustment, and lock actuation. IC Role / Device Role / Timing Role: LIN slave node handling protocol framing, diagnostic responses, and GPIO-controlled H-bridge drivers. Use Value: Hardware LIN support in UART0 reduces CPU load by 40% vs software bit-banging; 6 V-tolerant I/O interfaces directly with 12 V automotive switches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LDDFB#X0 | No data flash (0 KB); same package, pinout, and peripherals otherwise | Suitable where firmware parameters are stored externally or not required | Select when data logging or field-updatable configuration is unnecessary - reduces cost and simplifies BOM |
| RL78/G14 R5F104LEAFA#V0 | Higher integration: 256 KB flash, 32 KB RAM, USB 2.0, and CAN 2.0B controller | Required for USB-CDC communication or CAN bus connectivity in gateway designs | Choose when adding host-side USB device capability or automotive CAN networking - adds 3.5 mm² PCB area and higher power in active mode |
Compared with R5F100LDDFB#X0, R5F101LDDFB#X0 removes data flash but retains identical low-power behavior and peripheral count, while RL78/G14 R5F104LEAFA#V0 trades ultra-low quiescent current for USB/CAN connectivity - making it appropriate only when those interfaces justify the 2.2× higher active power draw.
Availability
R5F100LDDFB#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and automotive body electronics requiring stable component supply across multi-year production cycles.
Supply support for R5F100LDDFB#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 ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated industrial and consumer devices requiring high integration and long-term reliability.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100LDDFB#X0?
The R5F100LDDFB#X0 operates at up to 32 MHz, delivering 41 DMIPS of processing performance. Its RL78 CPU core achieves this with a 3-stage pipeline and supports variable instruction timing - from 0.03125 μs in high-speed mode to 30.5 μs in ultra-low-speed 32.768 kHz mode - enabling both responsive real-time control and ultra-low-power sleep states. This makes R5F100LDDFB#X0 suitable for applications balancing compute demand and energy efficiency.
Does the R5F100LDDFB#X0 include an integrated real-time clock (RTC) with calendar functionality?
Yes, the R5F100LDDFB#X0 includes a full-featured RTC with calendar support for years, months, days, hours, minutes, and seconds; alarm interrupt capability; and hardware clock correction. It operates independently in STOP mode using either an external 32.768 kHz crystal or the internal low-speed oscillator, with backup power supplied via the RTCVCC pin - ensuring continuous timekeeping during main power loss. This RTC is integral to R5F100LDDFB#X0's suitability for metering and timestamped logging.
How much data flash memory does the R5F100LDDFB#X0 provide, and what is its endurance rating?
The R5F100LDDFB#X0 includes 8 KB of on-chip data flash memory, rated for 1,000,000 write/erase cycles (typical) across a 1.8–5.5 V supply range. It supports background operation (BGO), allowing program execution from code flash while rewriting data flash - essential for reliable firmware parameter updates or event logging without system interruption. This 8 KB capacity is factory-configured and fixed for R5F100LDDFB#X0.
What low-power modes are supported by the R5F100LDDFB#X0, and what is the lowest achievable current draw?
The R5F100LDDFB#X0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - the lowest current state. HALT mode consumes 66 μA/MHz during active operation, and SNOOZE enables selective peripheral wake-up while CPU remains halted. These modes are hardware-controlled and require no software polling, making R5F100LDDFB#X0 ideal for energy harvesting and battery-critical applications.
Is the R5F100LDDFB#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, the R5F100LDDFB#X0 is fully pin-compatible with all other 64-pin LFQFP RL78/G13 variants sharing the FB suffix (e.g., R5F100LCAFB#X0, R5F100LLAFB#X0), including identical pin functions, electrical characteristics, and footprint. This allows direct substitution within the same memory/configurational family - for example, upgrading from 96 KB to 128 KB flash without PCB redesign. Pin compatibility is guaranteed per Renesas' RL78/G13 datasheet Section 1.3.
R5F100LDDFB#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:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 3K 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:
R5F100LDDFB#X0 FAQ
1.How can I place an order for R5F100LDDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LDDFB#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 R5F100LDDFB#X0 reliable?
The price and inventory of R5F100LDDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LDDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100LDDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LDDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LDDFB#X0?
R5F100LDDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LDDFB#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 R5F100LDDFB#X0?
For technical support, including R5F100LDDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LDDFB#X0 requirements.
6.How does Aetrix verify that R5F100LDDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100LDDFB#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 R5F100LDDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100LDDFB#X0?
All R5F100LDDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LDDFB#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 R5F100LDDFB#X0 part is unused and in its original packaging.
Return procedure for R5F100LDDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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