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Renesas R5F100LFDFA#V0
- Part No.:
- R5F100LFDFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LFDFA#V0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,609
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Product details
Overview
R5F100LFDFA#V0 from Renesas is a 64-pin LQFP-0.65mm, industrial-grade RL78/G13 16-bit MCU with 128 KB flash, 8 KB data flash, 12 KB RAM, and true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 16-bit timers (12 channels), 10-bit ADC (26-channel), UART/SPI/I²C interfaces, and operates from 1.6–5.5 V across –40°C to +85°C for embedded control in metering and industrial HMI.
For engineers reviewing the R5F100LFDFA#V0 datasheet, R5F100LFDFA#V0 pinout, R5F100LFDFA#V0 application, or R5F100LFDFA#V0 equivalent, key selection criteria include its 64-pin LQFP package with full peripheral set, industrial temperature rating, on-chip data flash endurance (1M rewrites), real-time clock calendar function, and support for SNOOZE mode wake-up via serial interface-critical for battery-backed sensor nodes and programmable logic controllers.
Technical Context
The R5F100LFDFA#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory subsystem includes 128 KB code flash (1 KB block size, security lock), 8 KB background-operable data flash, and 12 KB SRAM-with flash library RAM usage starting at FEF00H.
Peripheral integration includes dual DMA channels (2-clock transfers between SFR and RAM), 16 × 16-bit multiply/accumulate unit, 12-bit interval timer, calendar-capable RTC with alarm/correction, and configurable I/O ports (up to 52 N-ch open-drain pins with 6 V tolerance). Power management features HALT, STOP, and SNOOZE modes 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; enables deterministic timing for real-time control loops. |
| Operating Voltage | 1.6–5.5 V; supports direct connection to Li-ion, alkaline, or industrial 3.3/5 V rails without external regulators. |
| Flash Memory | 128 KB code flash + 8 KB data flash; allows firmware updates and parameter storage in same chip with BGO support. |
| RAM Size | 12 KB on-chip SRAM; sufficient for RTOS stacks, communication buffers, and control algorithm variables. |
| ADC Resolution | 10-bit SAR ADC with 26 input channels and internal 1.45 V reference; enables multi-sensor analog monitoring without external references. |
| Timer Resources | 12× 16-bit timers + 1× 12-bit interval timer + calendar RTC; supports PWM generation, capture/compare, and time-stamped event logging. |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA), SNOOZE; extends battery life in portable meters and remote sensors. |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, industrial-grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial Clock Input/Output | Shared SPI clock or I²C clock; enables dual-interface use on single pin to reduce PCB routing complexity. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial Data Input / UART RX / I²C Data | Multi-function pin supporting SPI master/slave, UART receive, debug tool interface, and I²C bidirectional data-ideal for consolidated communication ports. |
| P20/ANI0/AVREFP | Analog Input Channel 0 / ADC Reference Positive | Configurable as primary analog input or ADC reference voltage source; eliminates need for external reference in precision sensing. |
| P21/ANI1/AVREFM | Analog Input Channel 1 / ADC Reference Negative | Provides differential reference capability or second analog channel; supports ratiometric sensor measurements with internal reference. |
| P50/INTP0/TOOLRST | External Interrupt 0 / Debug Reset | Dual-role pin enables hardware interrupt triggering and JTAG/SWD reset signaling-simplifies debug probe integration. |
| VDD, VSS | Power Supply / Ground | Dedicated power pins with decoupling recommendations ensure stable core/peripheral operation under dynamic load conditions. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Data Flash | 8 KB with 1,000,000 rewrite cycles and background operation-enables field-upgradable calibration tables without halting application code. |
| SNOOZE Mode | Permits UART/SPI/I²C wake-up while CPU remains halted-reduces average current in always-on communication gateways by >90%. |
| Real-Time Clock | Full calendar (99-year range), alarm, and clock correction-eliminates need for external RTC IC in energy meters and HVAC controllers. |
| High-Accuracy Oscillator | ±1.0% over 1.8–5.5 V and –20 to +85°C-removes external crystal requirement for cost-sensitive industrial controls. |
| DMA Controller | 4-channel DMA with 2-clock transfers between SFR and RAM-offloads CPU during high-speed ADC sampling or serial streaming. |
| Temperature Sensor | Integrated die-temperature sensor with 10-bit ADC path-provides thermal monitoring for motor drives and power supplies without external components. |
Applications
| Smart Energy Metering | Industrial HMI Panels |
|---|---|
|
Use Scenario: Residential and commercial electricity/water/gas meters requiring long-life battery operation and tamper-resistant firmware updates. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing secure flash updates, and maintaining accurate time-stamped consumption logs via integrated RTC. Use Value: 0.57 μA STOP mode extends 10-year battery life; 8 KB data flash stores encryption keys and calibration offsets; 10-bit ADC digitizes shunt/sensor outputs directly. |
Use Scenario: Local operator interfaces for PLCs, motor starters, and process controllers with touch buttons, LED indicators, and serial connectivity. IC Role / Device Role / Timing Role: Peripheral manager handling button debouncing, LED PWM dimming, UART-to-PLC protocol translation, and real-time status display refresh. Use Value: 52 GPIOs support matrix keypad and multi-color LEDs; SNOOZE mode enables instant wake-up from UART commands; 16-bit timers generate precise LED fade effects. |
| Programmable Logic Controllers | Wireless Sensor Gateways |
|
Use Scenario: Compact DIN-rail mounted PLCs performing discrete I/O control, PID loop execution, and Modbus RTU communication. IC Role / Device Role / Timing Role: Central processing unit running ladder logic interpreter, managing 16-bit timer-based pulse outputs, and buffering Modbus frames in SRAM. Use Value: 12 KB RAM accommodates multiple Modbus register maps; 12× 16-bit timers drive stepper motors or solenoid timing; HALT mode reduces heat in enclosed cabinets. |
Use Scenario: Battery-powered gateways aggregating LoRaWAN/Zigbee sensor data and forwarding via UART/USB to cloud infrastructure. IC Role / Device Role / Timing Role: Protocol bridge converting sensor packet formats, managing low-power sleep/wake cycles, and buffering payloads in data flash before transmission. Use Value: Background data flash writes preserve payload history during RF transmission gaps; 32.768 kHz RTC schedules periodic wake-ups; UART/SPI/I²C support all major sensor buses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LGDFB#V0 | Same RL78/G13 family, 64-pin LFQFP (0.5-mm pitch), identical memory (128 KB/8 KB/12 KB) and peripherals, but different package footprint and thermal characteristics. | Preferred where board space is constrained and finer-pitch assembly is available; requires PCB redesign due to 0.5-mm vs. 0.65-mm pitch. | Select when migrating to higher-density layouts or leveraging existing LFQFP placement tooling. |
| R5F101LFDFA#V0 | Pin-compatible 64-pin LQFP variant without data flash (0 KB); retains same code flash, RAM, peripherals, and low-power modes. | Suitable for cost-sensitive applications where parameter storage is handled externally or not required-e.g., fixed-function motor drivers. | Choose when eliminating data flash reduces BOM cost and security requirements are minimal. |
Compared with R5F100LFDFA#V0, R5F100LGDFB#V0 offers identical functionality in a smaller-footprint LFQFP package requiring tighter layout tolerances, while R5F101LFDFA#V0 removes data flash to lower unit cost-making it viable only when external EEPROM or no field-updatable parameters are acceptable.
Availability
R5F100LFDFA#V0 is available at Aetrix Electronics and suitable for smart energy metering, industrial HMI panels, and programmable logic controllers requiring stable component supply, long-term lifecycle assurance, and industrial-temperature-rated performance.
Supply support for R5F100LFDFA#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 automotive, industrial, and IoT markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial control, metering, and appliance applications-balancing performance, integration, and energy efficiency without external crystals or regulators.
FAQ
What is the maximum operating frequency of the R5F100LFDFA#V0?
The R5F100LFDFA#V0 supports up to 32 MHz operation using its high-speed on-chip oscillator, delivering 41 DMIPS performance. This frequency is achievable across the full 1.6–5.5 V supply range and industrial temperature grade (–40°C to +85°C), enabling responsive real-time control without external clock sources.
Does the R5F100LFDFA#V0 include an integrated temperature sensor?
Yes, the R5F100LFDFA#V0 includes an on-chip temperature sensor connected to the 10-bit ADC. It is selectable only in HS (high-speed main) mode and provides die-temperature readings for thermal monitoring in motor drives, power supplies, or environmental sensors-eliminating the need for external thermal ICs.
Can the R5F100LFDFA#V0 execute code while rewriting data flash memory?
Yes, the R5F100LFDFA#V0 supports background operation (BGO) for data flash. Instructions can be executed from program memory while rewriting the 8 KB data flash, enabling seamless firmware parameter updates or calibration storage without application interruption or system freeze.
What debug interfaces are supported by the R5F100LFDFA#V0?
The R5F100LFDFA#V0 supports on-chip debug via SWD (Serial Wire Debug) using dedicated TOOLRxD/TOOLRST pins (P11/P50). It does not require JTAG; SWD enables full breakpoint, step-through, and memory inspection capabilities using standard Renesas E2 studio or compatible debug probes.
Is the R5F100LFDFA#V0 pin-compatible with other RL78/G13 variants in the same package?
Yes, all RL78/G13 devices in the 64-pin LQFP-0.65mm package-including R5F100LFDFA#V0, R5F100LCDFA#V0, and R5F100LGAFA#V0-share identical pinouts and electrical characteristics. This allows drop-in replacement across memory/configurations without PCB changes, provided software accounts for differing flash/RAM sizes.
R5F100LFDFA#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:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 8K 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:
R5F100LFDFA#V0 FAQ
1.How can I place an order for R5F100LFDFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LFDFA#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 R5F100LFDFA#V0 reliable?
The price and inventory of R5F100LFDFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LFDFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F100LFDFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LFDFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LFDFA#V0?
R5F100LFDFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LFDFA#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 R5F100LFDFA#V0?
For technical support, including R5F100LFDFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LFDFA#V0 requirements.
6.How does Aetrix verify that R5F100LFDFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F100LFDFA#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 R5F100LFDFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F100LFDFA#V0?
All R5F100LFDFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LFDFA#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 R5F100LFDFA#V0 part is unused and in its original packaging.
Return procedure for R5F100LFDFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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