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Renesas R5F100LFAFB#X0
- Part No.:
- R5F100LFAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LFAFB#X0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,341
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Product details
Overview
R5F100LFAFB#X0 from Renesas is a 64-pin LFQFP-0.5mm-pitch 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, 12 KB RAM, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode) for industrial control, sensor nodes, and battery-powered HMI applications.
For engineers reviewing the R5F100LFAFB#X0 datasheet, R5F100LFAFB#X0 pinout, R5F100LFAFB#X0 application, or R5F100LFAFB#X0 equivalent, key selection criteria include its integrated real-time clock with calendar, 10-bit 26-channel ADC, dual UART/LIN support, and hardware multiplier/divider for deterministic control loops in resource-constrained embedded systems.
Technical Context
The R5F100LFAFB#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 ultra-low-speed mode). It integrates a 12-bit interval timer, watchdog timer with dedicated low-speed oscillator, and background operation for data flash rewriting while executing code from program memory.
Its peripheral set includes up to 16 channels of 16-bit timers, 3–10 I²C/Simplified I²C channels, 2–8 CSI (SPI-compatible) interfaces, and UART/LIN transceivers with automatic LIN header detection-enabling direct integration into automotive body electronics and industrial fieldbus nodes without external protocol assist chips.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response in motor control and sensor fusion. |
| Flash Memory | 128 KB code flash + 8 KB data flash; supports self-programming with boot swap and flash shield window for firmware updates. |
| RAM | 12 KB on-chip RAM; sufficient for RTOS stacks, communication buffers, and control algorithm variables. |
| Power Consumption | 66 μA/MHz active current; reduces battery drain in portable medical devices and wireless sensors. |
| ADC | 10-bit resolution, 26 analog inputs, internal 1.45 V reference; eliminates need for external voltage reference in precision analog sensing. |
| Real-Time Clock | Calendar function (99-year range), alarm, and clock correction; enables time-stamped logging without external RTC IC. |
| Operating Voltage | 1.6 V to 5.5 V single supply; simplifies power design across battery, USB, and industrial 3.3/5 V rails. |
| Temperature Range | −40°C to +105°C (Industrial G-grade); qualified for under-hood automotive and factory-floor automation environments. |
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 and I/O rail decoupling; supports mixed-voltage I/O (1.8/2.5/3.3 V interface). |
| P00–P07, P10–P17, P20–P27, etc. | General-purpose I/O ports | Up to 54 programmable I/O pins with N-ch open-drain, TTL input buffer, and on-chip pull-up; enables direct connection to switches, LEDs, and digital sensors. |
| P10/P11 | SCK00/SI00/RxD0/TOOLRxD/SDA00 | Multi-function pin supporting SPI clock, SPI input, UART receive, debug RX, and I²C data-reduces PCB routing complexity in multi-protocol designs. |
| P30/P31 | TxD0/TxD1 | Dual UART transmit outputs; allows simultaneous debug output and LIN bus transmission without software multiplexing. |
| P140–P147 | ANI0–ANI7 | Analog input channels with shared AVREFP/AVREFM; supports differential measurements and temperature sensor readout using internal reference. |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/LVD assertion; ensures reliable startup after brownout or power sequencing events. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Enables sub-μA sleep states with fast wake-up (< 4 μs), critical for energy harvesting and coin-cell-powered IoT endpoints. |
| Hardware multiplier/divider & MAC | Executes 16×16→32-bit multiply, 32÷32→32-bit divide, and 16×16+32→32-bit MAC in single-cycle-accelerates PID, filtering, and sensor compensation math. |
| Background data flash rewrite (BGO) | Permits concurrent code execution and non-volatile parameter storage update, eliminating interrupt latency during firmware configuration changes. |
| On-chip voltage detector (LVD) | 14-level selectable threshold (1.6–4.2 V); provides precise brownout protection and graceful shutdown before data corruption occurs. |
| DMA controller (4 channels) | Transfers data between SFRs and RAM in 2 clocks per 8/16-bit word; offloads CPU during ADC sampling, UART buffering, and display refresh. |
| Integrated BCD correction circuit | Accelerates decimal arithmetic for human-interface displays (e.g., HVAC controllers, digital panel meters) without software overhead. |
Applications
| Smart Thermostat Controller | Industrial Sensor Node |
|---|---|
Use Scenario: Local temperature/humidity control with wireless reporting and user interface. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, LCD driving, button scanning, and sub-GHz RF module timing via UART/LIN. Use Value: Integrated RTC enables accurate scheduling of HVAC cycles; 10-bit ADC resolves ±0.1°C thermal readings; ultra-low STOP mode extends battery life to >2 years on AA cells. | Use Scenario: Distributed vibration/pressure monitoring in predictive maintenance systems. IC Role / Device Role / Timing Role: Edge-processing node performing FFT preprocessing, event-triggered logging, and CAN/LIN gateway functions. Use Value: Hardware multiplier accelerates real-time spectral analysis; BGO allows continuous sensor data logging to data flash while running control firmware; 105°C rating ensures reliability near motors and pumps. |
| Automotive Body Control Module | Medical Infusion Pump Controller |
Use Scenario: Centralized control of door locks, lighting, and window lifters with LIN communication. IC Role / Device Role / Timing Role: LIN master node with automatic header detection, PWM dimming control, and fault-safe GPIO supervision. Use Value: Dual UART/LIN peripherals eliminate external transceivers; LVD with 14 thresholds ensures fail-safe behavior during vehicle battery fluctuations; AEC-Q100 qualification supported by G-grade temp range. | Use Scenario: Precision fluid delivery system requiring motor control, pressure sensing, and safety-critical alarms. IC Role / Device Role / Timing Role: Safety-monitored controller executing closed-loop stepper motor positioning, analog pressure feedback, and audible/visual alerts. Use Value: Watchdog timer with independent oscillator guarantees recovery from lockup; RTC timestamps error logs for regulatory traceability; 1.6–5.5 V operation accommodates diverse medical power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LGAFB#X0 | Same package and pinout; 128 KB flash, 8 KB data flash, but 8 KB RAM (vs. 12 KB in R5F100LFAFB#X0) | Lower RAM limits multitasking depth and large buffer usage (e.g., audio streaming, complex UI rendering) | Select when application logic fits within 8 KB RAM and cost optimization is prioritized over headroom. |
| R5F101LFAFB#X0 | Identical package, pinout, and memory map; lacks data flash (0 KB vs. 8 KB), no BGO or flash shield window | Cannot perform safe in-field firmware updates or store calibrated parameters without external EEPROM | Choose only if non-volatile parameter storage is handled externally or not required; otherwise, R5F100LFAFB#X0 is mandatory for field-upgradable designs. |
Compared with R5F100LGAFB#X0 and R5F101LFAFB#X0, the R5F100LFAFB#X0 uniquely delivers 12 KB RAM for robust RTOS operation and 8 KB data flash with background rewrite capability-making it the sole choice for applications requiring both deterministic real-time performance and secure, seamless firmware updates.
Availability
R5F100LFAFB#X0 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and battery-powered medical devices requiring stable component supply across long product lifecycles.
Supply support for R5F100LFAFB#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications-designed to replace legacy 8-bit MCUs while delivering 16-bit performance, enhanced peripherals, and simplified migration paths from earlier RL78 generations.
FAQ
What is the maximum operating frequency of the R5F100LFAFB#X0?
The R5F100LFAFB#X0 operates at up to 32 MHz using its high-accuracy on-chip oscillator (±1.0% over −20°C to +85°C). This yields 41 DMIPS performance and enables real-time control loops with sub-microsecond jitter, making the R5F100LFAFB#X0 suitable for motor commutation and high-speed sensor sampling where timing predictability is essential.
Does the R5F100LFAFB#X0 support in-system programming (ISP)?
Yes, the R5F100LFAFB#X0 supports full in-system programming via its on-chip debug interface. It includes self-programming capability with boot swap functionality and flash shield window protection-allowing secure firmware updates in the field without requiring external programmers. This feature is integral to the R5F100LFAFB#X0's design for long-lifecycle industrial and medical deployments.
How many analog-to-digital converter (ADC) channels does the R5F100LFAFB#X0 have?
The R5F100LFAFB#X0 features a 10-bit successive-approximation ADC with up to 26 analog input channels (ANI0–ANI25), including dedicated AVREFP/AVREFM pins and an internal 1.45 V reference. This enables high-resolution measurement of multiple sensors simultaneously-critical for applications like environmental monitoring and multi-axis motion control where the R5F100LFAFB#X0 serves as the central analog acquisition hub.
Is the R5F100LFAFB#X0 qualified for automotive applications?
The R5F100LFAFB#X0 is rated for −40°C to +105°C (G-grade), meeting industrial temperature requirements and supporting automotive body electronics such as LIN-based door modules and lighting controllers. While not AEC-Q100 certified out-of-box, Renesas provides qualification documentation and test reports enabling system-level AEC-Q100 compliance-making the R5F100LFAFB#X0 a viable option for non-safety-critical automotive subsystems.
What debug interfaces are available on the R5F100LFAFB#X0?
The R5F100LFAFB#X0 supports Renesas' standard E1/E20 on-chip debug interface via dedicated TOOLRxD/TOOLTxD pins (shared with P11/P12), enabling full JTAG/SW-DP debugging, flash programming, and real-time trace. This native debug support eliminates the need for external debug adapters and streamlines development of complex firmware for the R5F100LFAFB#X0 across IDEs including e2 studio and CS+.
R5F100LFAFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
R5F100LFAFB#X0 FAQ
1.How can I place an order for R5F100LFAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LFAFB#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 R5F100LFAFB#X0 reliable?
The price and inventory of R5F100LFAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LFAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100LFAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LFAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LFAFB#X0?
R5F100LFAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LFAFB#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 R5F100LFAFB#X0?
For technical support, including R5F100LFAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LFAFB#X0 requirements.
6.How does Aetrix verify that R5F100LFAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100LFAFB#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 R5F100LFAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100LFAFB#X0?
All R5F100LFAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LFAFB#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 R5F100LFAFB#X0 part is unused and in its original packaging.
Return procedure for R5F100LFAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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