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Renesas R5F101FLDFP#X0
- Part No.:
- R5F101FLDFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FLDFP#X0.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,557
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Product details
Overview
R5F101FLDFP#X0 from Renesas is a 44-pin LQFP-0.8mm-pitch 16-bit RL78/G13 microcontroller with 96 KB flash, 8 KB data flash, 8 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 mixed-signal integration and long-term firmware update capability.
For engineers reviewing the R5F101FLDFP#X0 datasheet, R5F101FLDFP#X0 pinout, R5F101FLDFP#X0 application, or R5F101FLDFP#X0 equivalent, key selection criteria include its 44-pin LQFP package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D suffix), and support for UART/LIN, I²C, and 10-bit ADC with internal reference.
Technical Context
The R5F101FLDFP#X0 implements the RL78 CISC core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It integrates a 10-bit A/D converter with up to 26 channels, real-time clock with calendar/alarm, and hardware multiplier/divider for embedded control math.
Power management includes HALT, STOP, and SNOOZE modes, on-chip POR and 14-level LVD, and DMA controller with 2/4 channels. Serial interfaces comprise 2–4 UART/LIN channels, 3–10 I²C/Simplified I²C channels, and 2–8 CSI (SPI-compatible) channels - all configurable without external transceivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline and variable instruction timing (0.03125–30.5 μs) |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for deterministic real-time control loops |
| Flash Memory | 96 KB code flash - supports in-application programming and boot swap for field firmware updates |
| Data Flash | Not integrated - R5F101x series omits dedicated data flash; use code flash or external EEPROM |
| RAM | 8 KB on-chip RAM - sufficient for RTOS stacks, communication buffers, and sensor data processing |
| ADC Resolution | 10-bit SAR ADC with 26-channel input multiplexer and internal 1.45 V reference |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 3.3 V, and 5 V peripherals |
| Temp Range | -40°C to +85°C (Industrial D-grade) - qualified for factory automation and building control environments |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support separate analog/digital supply routing and noise isolation |
| P10/SCK00/SCL00 | Port 10 / SPI clock / I²C clock | Multi-function pin enabling shared hardware resources across serial protocols |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI input / UART receive / debug RX / I²C data | High-density pin sharing reduces PCB footprint while requiring careful mode sequencing |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Enables ratiometric sensing using external voltage reference or internal AVREFP |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Supports differential ADC measurements and precision offset calibration |
| RESET | Active-low reset input | Accepts external reset signals or connects to on-chip POR/LVD for autonomous recovery |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP modes | Reduces current to sub-μA levels during sensor sleep cycles without losing RTC or LVD state |
| On-chip high-accuracy oscillator | +/-1.0% frequency stability (1.8–5.5 V, -20 to +85°C) eliminates need for external crystal in cost-sensitive designs |
| Background operation (BGO) | Allows concurrent program execution and data flash rewriting - critical for seamless OTA updates |
| Hardware multiplier/divider | Executes 16×16→32-bit multiply or 32÷32→32-bit divide in fixed cycles, accelerating PID and filtering algorithms |
| Different-potential I/O | Supports direct connection to 1.8 V, 2.5 V, or 3 V logic without level shifters - simplifies multi-voltage system integration |
| On-chip RTC with calendar | Provides 99-year date/time tracking, alarm, and auto-correction - enables time-stamped logging in standalone devices |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Standalone electricity/water/gas meter with pulse counting, tamper detection, and local display. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing LCD driver, and handling IR/RF communication stack. Use Value: 10-bit ADC with internal reference enables accurate analog sensor interfacing; 96 KB flash accommodates dual-firmware images for safe field updates. | Use Scenario: Wireless temperature/humidity/pressure node in factory floor monitoring. IC Role / Device Role / Timing Role: Sensor fusion hub collecting data via I²C/UART, performing local compensation, and preparing packets for BLE/Zigbee MCU. Use Value: Ultra-low-power STOP mode extends battery life to >5 years; RTC calendar allows scheduled wake-up and time-stamped event logging. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Washing machine main board controlling motor drivers, water valves, and user interface. IC Role / Device Role / Timing Role: Real-time motion control coordinator with PWM generation, fault monitoring, and HMI communication. Use Value: 16-bit timers with dead-time insertion support brushless motor commutation; 44-pin LQFP provides ample GPIO for relay/LED/encoder interfaces. | Use Scenario: HVAC zone controller managing thermostats, dampers, and fan speeds via BACnet MS/TP or Modbus RTU. IC Role / Device Role / Timing Role: Protocol gateway translating between RS-485 physical layer and internal CAN/LIN peripherals. Use Value: UART with LIN support enables direct connection to automotive-grade actuators; 8 KB RAM buffers protocol translation tables and history logs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FLDFP#X0 | Includes 8 KB data flash; identical pinout, package, and peripheral set | Required where persistent non-volatile parameter storage (e.g., calibration data, device ID) must survive code flash rewrites | Select when data retention during firmware updates is mandatory; otherwise R5F101FLDFP#X0 reduces cost and simplifies memory management |
| R5F101GKAFP#V0 | 48-pin LQFP-0.5mm package; adds 4 extra GPIO and 1 additional UART channel | Suitable for designs needing expanded I/O or dual UART for diagnostics + fieldbus | Choose only if pin count and UART count are limiting; requires PCB redesign due to different pitch and footprint |
Compared with R5F100FLDFP#X0, the R5F101FLDFP#X0 saves board space by eliminating redundant data flash circuitry while maintaining full functional compatibility for code-only storage; versus R5F101GKAFP#V0, it offers lower component cost and simpler layout at the expense of two UARTs and four GPIOs.
Availability
R5F101FLDFP#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 multi-year production cycles.
Supply support for R5F101FLDFP#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, power, and SoC solutions for industrial, automotive, and enterprise markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and energy-efficient embedded systems requiring rich analog integration and robust firmware update capability.
FAQ
What is the maximum operating frequency and DMIPS performance of the R5F101FLDFP#X0?
The R5F101FLDFP#X0 operates at up to 32 MHz and delivers 41 DMIPS of processing performance. This benchmark reflects its RL78 CPU core's 3-stage pipeline efficiency and enables deterministic execution of real-time control tasks such as motor commutation, sensor fusion, and protocol stack handling without external acceleration.
Does the R5F101FLDFP#X0 include on-chip data flash memory?
No, the R5F101FLDFP#X0 does not integrate data flash memory. As indicated by the "101" family designation in the Renesas part numbering scheme, this variant omits dedicated data flash. Designers requiring non-volatile parameter storage must use code flash sectors with self-programming or add external EEPROM/FRAM.
What package type and pin count does the R5F101FLDFP#X0 use?
The R5F101FLDFP#X0 uses a 44-pin LQFP package with 0.8 mm pitch (RENESAS Code PLQP0044GC-A). The "FP" suffix in the part number explicitly denotes LQFP, and the "#X0" packaging code indicates embossed tape delivery - compatible with standard SMT pick-and-place equipment.
What is the operating temperature range specified for the R5F101FLDFP#X0?
The R5F101FLDFP#X0 is rated for industrial operation from -40°C to +85°C, denoted by the "D" suffix in its full ordering code. This qualification ensures reliable performance in factory automation, building control, and outdoor metering applications where ambient thermal stress exceeds commercial-grade limits.
Which serial communication interfaces are supported by the R5F101FLDFP#X0?
The R5F101FLDFP#X0 supports UART/LIN (2–4 channels), I²C/Simplified I²C (3–10 channels), and CSI (SPI-compatible, 2–8 channels). All interfaces are implemented in hardware with independent clock sources and DMA support, enabling simultaneous multi-protocol communication without CPU overhead.
R5F101FLDFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-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:
- 31
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101FLDFP#X0 FAQ
1.How can I place an order for R5F101FLDFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FLDFP#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 R5F101FLDFP#X0 reliable?
The price and inventory of R5F101FLDFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FLDFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F101FLDFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FLDFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FLDFP#X0?
R5F101FLDFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FLDFP#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 R5F101FLDFP#X0?
For technical support, including R5F101FLDFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FLDFP#X0 requirements.
6.How does Aetrix verify that R5F101FLDFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101FLDFP#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 R5F101FLDFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F101FLDFP#X0?
All R5F101FLDFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FLDFP#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 R5F101FLDFP#X0 part is unused and in its original packaging.
Return procedure for R5F101FLDFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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