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Renesas R5F101LCDFA#X0
- Part No.:
- R5F101LCDFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LCDFA#X0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,464
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Product details
Overview
R5F101LCDFA#X0 from Renesas is a 64-pin LQFP-0.65mm microcontroller in the RL78/G13 family, featuring 128 KB flash memory, 12 KB RAM, and no data flash. It operates from 1.6–5.5 V, delivers 41 DMIPS at 32 MHz, and supports ultra-low-power modes (0.57 μA RTC+LVD). It targets industrial control panels requiring deterministic real-time response and extended battery life.
For engineers reviewing the R5F101LCDFA#X0 datasheet, R5F101LCDFA#X0 pinout, R5F101LCDFA#X0 application, or R5F101LCDFA#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), and multiple serial interfaces (UART, I²C, CSI).
Technical Context
The R5F101LCDFA#X0 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). Its memory map spans 1 MB, with general-purpose register banks enabling efficient context switching in interrupt-driven applications.
Power management includes HALT, STOP, and SNOOZE modes, plus an on-chip voltage detector with 14 selectable LVD levels and POR circuitry. Peripheral integration includes a 12-bit interval timer, calendar-based real-time clock with alarm and correction, and background operation-capable DMA controller (4 channels).
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. |
| Max Operating Frequency | 32 MHz; delivers 41 DMIPS for mid-complexity firmware execution without external clocking. |
| Flash Memory | 128 KB code flash (1 KB block size); supports self-programming with boot swap and flash shield window. |
| RAM | 12 KB on-chip RAM; sufficient for RTOS stacks, communication buffers, and sensor data aggregation. |
| ADC | 10-bit resolution, 26-channel analog input; includes internal 1.45 V reference and temperature sensor for embedded monitoring. |
| Operating Voltage | 1.6–5.5 V single supply; allows direct interface with Li-ion, 3.3 V, and 5 V subsystems without level-shifting. |
| Temperature Range | −40°C to +85°C (Industrial D grade); qualified for factory automation and building control environments. |
Pinout & Package
Package: 64-pin LQFP, 12 × 12 mm, 0.65-mm pitch (JEDEC MS-026AC), lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Port 10 / SPI Clock / I²C Clock | Multi-function pin supporting synchronous serial master/slave operation or I²C bus clock generation. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI Input / UART RX / Debug RX / I²C Data | Shared serial interface pin enabling flexible peripheral routing and in-circuit debugging via TOOLRxD. |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Configurable as first ADC channel or positive reference input; supports ratiometric sensor measurements. |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Configurable as second ADC channel or negative reference input; enables differential ADC mode with AVREFP. |
| P50/INTP0/TOOLRST | External Interrupt 0 / Debug Reset | Dual-role pin for hardware interrupt triggering or forced debug reset during development and field updates. |
| VDD, VSS | Power Supply / Ground | Dedicated power pins with decoupling recommendations; supports stable operation across full voltage and temperature range. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active-enables multi-year battery life in metering and sensor nodes. |
| On-chip debug support | Fully integrated on-chip debug interface with TOOLRxD/TOOLRST pins-eliminates need for external JTAG emulator. |
| Self-programmable flash | Boot swap and flash shield window functions enable secure firmware updates and dual-bank OTA capability. |
| Real-time clock (RTC) | Calendar function (99-year range), alarm, and clock correction-supports time-stamped logging without external RTC IC. |
| Serial interface flexibility | Up to 10 total channels across UART, I²C, and CSI (SPI-compatible)-simplifies connectivity to displays, sensors, and legacy peripherals. |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
|
Use Scenario: Local operator interface for PLC-controlled machinery with touch buttons, LED indicators, and serial display driver. IC Role / Device Role / Timing Role: Main system controller executing UI logic, polling inputs, driving outputs, and managing UART-to-display communication. Use Value: Integrated 26-channel ADC reads analog potentiometers and sensor feedback; 128 KB flash hosts GUI state machine and firmware update handler. |
Use Scenario: Residential electricity meter with pulse counting, tamper detection, and RS-485 communication to utility gateway. IC Role / Device Role / Timing Role: Primary metrology co-processor handling pulse accumulation, LVD-based tamper alert, and time-synchronized data reporting. Use Value: RTC with calendar and alarm enables tariff-based billing; 0.57 μA STOP mode extends battery backup to >10 years. |
| Building Automation Controller | Wireless Sensor Node Hub |
|
Use Scenario: DIN-rail mounted HVAC controller interfacing with temperature/humidity sensors, relays, and BACnet MSTP network. IC Role / Device Role / Timing Role: Central decision engine running PID loops, scheduling, and protocol translation between analog sensors and serial fieldbus. Use Value: 16-bit timers provide precise PWM for fan speed control; 41 DMIPS ensures real-time loop execution even with 10+ concurrent control zones. |
Use Scenario: Gateway node aggregating BLE/Zigbee sensor data and forwarding via UART to Wi-Fi or cellular modem. IC Role / Device Role / Timing Role: Low-power bridge MCU managing radio wake-up, data buffering, and protocol conversion before transmission. Use Value: SNOOZE mode reduces active current during radio sleep; integrated UART/I²C eliminates external level translators for common IoT radios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LCDFA#X0 | Includes 8 KB data flash; same 128 KB code flash, 12 KB RAM, and identical pinout/package. | Preferred where EEPROM-like nonvolatile parameter storage is required (e.g., calibration data, user settings). | Select when field-updatable configuration persistence is mandatory and flash endurance >1M cycles is needed. |
| R5F101LCAFA#X0 | Same RL78/G13 core, 64-pin LQFP, but with 96 KB code flash and 8 KB RAM; no data flash. | Suitable for cost-sensitive designs with reduced firmware footprint and lower RAM requirements. | Choose for simpler control tasks where 128 KB flash and 12 KB RAM are unnecessary overhead. |
Compared with R5F100LCDFA#X0, the R5F101LCDFA#X0 trades data flash for marginally lower unit cost and identical real-time performance, while R5F101LCAFA#X0 reduces both flash and RAM capacity-making it optimal for streamlined firmware deployments without sacrificing pin compatibility or industrial temperature rating.
Availability
R5F101LCDFA#X0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, building automation controllers, and wireless sensor node hubs requiring stable component supply across multi-year production cycles.
Supply support for R5F101LCDFA#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 infrastructure markets.
The RL78/G13 product line delivers true low-power performance (66 μA/MHz) with rich peripheral integration for cost-sensitive, high-volume embedded applications in factory automation, metering, and consumer appliances.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F101LCDFA#X0?
The R5F101LCDFA#X0 operates at up to 32 MHz with a measured performance of 41 DMIPS. This benchmark reflects its RL78 CPU core efficiency under standard EEMBC CoreMark conditions and enables responsive execution of real-time control algorithms, communication stacks, and UI rendering without external acceleration.
Does the R5F101LCDFA#X0 include on-chip data flash memory?
No, the R5F101LCDFA#X0 does not include on-chip data flash memory. The "1" in the part number denotes absence of data flash, distinguishing it from "0" variants like R5F100LCDFA#X0 which integrate 8 KB of data flash. Firmware must use code flash sectors or external EEPROM for nonvolatile parameter storage.
What package type and pin count does the R5F101LCDFA#X0 use?
The R5F101LCDFA#X0 uses a 64-pin LQFP package with 12 × 12 mm body size and 0.65-mm lead pitch (JEDEC MS-026AC). This package is compatible with standard surface-mount assembly processes and provides full access to all GPIO, analog, and serial peripheral signals defined in the RL78/G13 family.
What is the operating temperature range specified for the R5F101LCDFA#X0?
The R5F101LCDFA#X0 is rated for industrial operation from −40°C to +85°C (D grade). This specification is validated per Renesas' qualification standards and supports deployment in factory floors, outdoor metering enclosures, and HVAC equipment without thermal derating.
Which serial communication interfaces are supported by the R5F101LCDFA#X0?
The R5F101LCDFA#X0 supports UART (up to 4 channels), I²C/Simplified I²C (up to 10 channels), and CSI (SPI-compatible serial interface, up to 8 channels). These interfaces can be multiplexed across GPIO pins and configured independently for simultaneous operation in mixed-protocol systems.
R5F101LCDFA#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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- 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:
R5F101LCDFA#X0 FAQ
1.How can I place an order for R5F101LCDFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LCDFA#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 R5F101LCDFA#X0 reliable?
The price and inventory of R5F101LCDFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LCDFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LCDFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LCDFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LCDFA#X0?
R5F101LCDFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LCDFA#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 R5F101LCDFA#X0?
For technical support, including R5F101LCDFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LCDFA#X0 requirements.
6.How does Aetrix verify that R5F101LCDFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LCDFA#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 R5F101LCDFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LCDFA#X0?
All R5F101LCDFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LCDFA#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 R5F101LCDFA#X0 part is unused and in its original packaging.
Return procedure for R5F101LCDFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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