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Renesas R5F101LLAFA#X0
- Part No.:
- R5F101LLAFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LLAFA#X0.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,043
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Product details
Overview
R5F101LLAFA#X0 from Renesas is a 64-pin LQFP-0.65mm, 16-bit RL78/G13 microcontroller with 128 KB flash memory, 12 KB RAM, and no data flash. It operates from 1.6 V to 5.5 V, delivers 41 DMIPS at 32 MHz, and supports ultra-low-power modes (0.57 μA in RTC+LVD mode), targeting battery-powered industrial sensors and smart metering interfaces.
For engineers reviewing the R5F101LLAFA#X0 datasheet, R5F101LLAFA#X0 pinout, R5F101LLAFA#X0 application, or R5F101LLAFA#X0 equivalent, key selection criteria include its 64-pin LQFP package, absence of on-chip data flash, industrial-grade temperature range (−40°C to +85°C), and integrated peripherals including 16-bit timers, 10-bit ADC (26 channels), UART/LIN, I²C, and CSI serial interfaces.
Technical Context
The R5F101LLAFA#X0 implements the RL78 CPU core with a 3-stage CISC pipeline, 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, real-time clock with calendar/alarm, and watchdog timer with dedicated low-speed oscillator.
Peripherals include up to 16 channels of 16-bit timer, 10-bit A/D converter with internal 1.45 V reference and temperature sensor, and multiple serial interfaces: CSI (SPI-compatible), UART/LIN (up to 4 channels), and I²C/Simplified I²C (up to 10 channels). DMA controller supports 2/4 channels with 2-clock transfers between SFR and RAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control and low-power interrupt latency. |
| Max Operating Frequency | 32 MHz; delivers 41 DMIPS for responsive embedded control in motor drives and sensor hubs. |
| Flash Memory | 128 KB code flash; sufficient for complex firmware with bootloader, communication stacks, and safety routines. |
| RAM Size | 12 KB on-chip RAM; supports multitasking RTOS, buffer-intensive protocols (LIN, I²C), and data logging. |
| Supply Voltage Range | 1.6 V to 5.5 V; allows direct interface with Li-ion, alkaline, or regulated 3.3 V/5 V rails without level-shifting. |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD); extends battery life in always-on monitoring applications. |
| Analog Peripherals | 10-bit ADC with 26 input channels and internal temperature sensor; enables local environmental sensing without external ICs. |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial Clock Input/Output | Shared SPI clock (CSI) and I²C clock; enables dual-protocol peripheral interfacing on one pin. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial Data Input / UART RX / I²C Data | Multi-function pin supporting SPI slave-in, UART receive, debug tool interface, and I²C bidirectional data. |
| P20/ANI0/AVREFP | Analog Input / Positive Reference | Primary ADC channel 0 input and selectable positive reference voltage source for precision analog measurements. |
| P21/ANI1/AVREFM | Analog Input / Negative Reference | ADC channel 1 input and configurable negative reference; enables ratiometric or differential measurement setups. |
| P22/ANI2 | Analog Input | Dedicated ADC channel 2; supports simultaneous sampling across multiple analog sources in sensor arrays. |
| RESET | Active-Low Reset Input | Asynchronous reset pin with internal pull-up; compatible with external RC or supervisor IC reset circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Supports in-application firmware updates via boot swap and flash shield window; eliminates need for external programmer in field upgrades. |
| Background operation (BGO) | Not applicable - R5F101xx series lacks data flash; BGO is only available on R5F100xx variants with data flash. |
| Real-time clock (RTC) | Calendar function (99-year range), alarm, and clock correction; enables time-stamped logging and scheduled wake-up without external RTC IC. |
| DMA controller | 2-channel DMA with 2-clock transfers between SFR and RAM; offloads CPU during high-bandwidth peripheral transfers (e.g., ADC → memory). |
| On-chip voltage detector (LVD) | 14-level programmable LVD with interrupt/reset options; provides robust brown-out protection across varying supply conditions. |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Two-way communication and tariff calculation in DIN-rail mounted electricity meters with tamper detection. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing RS-485/PLC communication, and driving LCD display. Use Value: 128 KB flash accommodates DLMS/COSEM stack and encryption; 10-bit ADC with 26 channels digitizes current/voltage transformers directly. |
Use Scenario: Wireless node collecting temperature, humidity, and vibration data in factory-floor predictive maintenance systems. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating analog/digital inputs, running local anomaly detection, and preparing data for BLE/Wi-Fi transmission. Use Value: Ultra-low-power STOP mode (0.57 μA) enables multi-year battery life; integrated RTC schedules periodic wake-ups and timestamping. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Motor control and user interface in inverter-driven HVAC systems with touch feedback and energy monitoring. IC Role / Device Role / Timing Role: Real-time motor commutation controller with PWM generation, ADC-based current sensing, and capacitive touch decoding. Use Value: 16-bit timers with complementary outputs support 3-phase BLDC drive; 1.6–5.5 V operation simplifies power design across AC/DC and battery backup rails. |
Use Scenario: Central controller in lighting and HVAC management panels with CAN/LIN bus connectivity and local HMI. IC Role / Device Role / Timing Role: Protocol gateway translating Modbus RTU to LIN/CAN, managing button/LED status, and logging event history. Use Value: UART/LIN support enables direct connection to automotive-grade actuators; 64-pin LQFP provides ample GPIO for panel I/O expansion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LLAFA#X0 | Same package and pinout; includes 8 KB data flash and background operation (BGO) capability. | Required where firmware must perform data logging or parameter storage during active program execution. | Select R5F100LLAFA#X0 if non-volatile parameter retention or background flash rewriting is needed. |
| R5F101LGAFA#X0 | 64-pin LQFP variant with 96 KB flash, 8 KB RAM, same peripheral set and power profile. | Suitable for cost-optimized designs where 128 KB flash is excessive but full peripheral complement is retained. | Choose R5F101LGAFA#X0 when firmware size is ≤96 KB and BOM cost reduction is prioritized over flash headroom. |
Compared with R5F101LLAFA#X0, R5F100LLAFA#X0 adds data flash for runtime parameter storage, while R5F101LGAFA#X0 reduces flash/RAM capacity to lower unit cost-both maintain identical package, timing, and peripheral compatibility for seamless migration.
Availability
R5F101LLAFA#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across extended production lifecycles.
Supply support for R5F101LLAFA#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 family targets cost-sensitive, ultra-low-power general-purpose applications-designed to replace legacy 8/16-bit MCUs with enhanced integration, security features, and energy efficiency for consumer and industrial edge devices.
FAQ
What is the operating temperature range for R5F101LLAFA#X0?
The R5F101LLAFA#X0 is rated for industrial operation from −40°C to +85°C, as indicated by the 'D' suffix in its part number designation per Renesas RL78/G13 documentation. This makes it suitable for deployment in harsh environments such as factory floors, outdoor utility equipment, and automotive under-hood modules where thermal stability is critical. The device maintains full specification compliance across this range without derating.
Does R5F101LLAFA#X0 include on-chip data flash memory?
No, R5F101LLAFA#X0 does not include on-chip data flash memory. The '101' in the part number explicitly denotes absence of data flash, distinguishing it from '100' variants like R5F100LLAFA#X0 which integrate 8 KB of data flash. Firmware must use code flash sectors or external EEPROM/FRAM for non-volatile parameter storage when using R5F101LLAFA#X0.
What serial communication interfaces are supported by R5F101LLAFA#X0?
R5F101LLAFA#X0 supports three primary serial interfaces: CSI (SPI-compatible, up to 8 channels), UART/LIN (up to 4 channels with LIN 2.2 compliance), and I²C/Simplified I²C (up to 10 channels). These are implemented in hardware with independent baud rate generators and FIFO buffers, enabling concurrent multi-protocol communication-for example, LIN for actuator control, I²C for sensor readout, and CSI for display driver interfacing-all without CPU overhead.
Can R5F101LLAFA#X0 operate from a single 1.8 V supply?
Yes, R5F101LLAFA#X0 supports operation from 1.6 V to 5.5 V, making it fully functional at 1.8 V. At this voltage, the maximum guaranteed operating frequency is reduced per the datasheet's voltage-frequency curve, but all peripherals-including ADC, timers, and serial interfaces-remain operational. This enables direct integration with 1.8 V logic families and low-voltage battery systems without level translation.
Is R5F101LLAFA#X0 pin-compatible with other RL78/G13 64-pin LQFP variants?
Yes, R5F101LLAFA#X0 is pin-compatible with all other RL78/G13 64-pin LQFP variants sharing the same FA package (0.65-mm pitch), including R5F100LLAFA#X0 and R5F101LGAFA#X0. Pin functions, power/ground assignments, and peripheral mappings are identical across this package group-enabling drop-in replacement during design iteration or qualification, provided software accounts for differences in flash size and data flash presence.
R5F101LLAFA#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:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K 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:
R5F101LLAFA#X0 FAQ
1.How can I place an order for R5F101LLAFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LLAFA#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 R5F101LLAFA#X0 reliable?
The price and inventory of R5F101LLAFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LLAFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LLAFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LLAFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LLAFA#X0?
R5F101LLAFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LLAFA#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 R5F101LLAFA#X0?
For technical support, including R5F101LLAFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LLAFA#X0 requirements.
6.How does Aetrix verify that R5F101LLAFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LLAFA#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 R5F101LLAFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LLAFA#X0?
All R5F101LLAFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LLAFA#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 R5F101LLAFA#X0 part is unused and in its original packaging.
Return procedure for R5F101LLAFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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