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Renesas R5F101LDAFA#V0
- Part No.:
- R5F101LDAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LDAFA#V0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,813
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Product details
Overview
R5F101LDAFA#V0 from Renesas is a 64-pin LQFP-0.65mm, industrial-grade RL78/G13 16-bit microcontroller with 128 KB flash, 12 KB RAM, and no data flash memory. 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 battery-powered industrial sensors and smart metering interfaces requiring deterministic real-time control.
For engineers reviewing the R5F101LDAFA#V0 datasheet, R5F101LDAFA#V0 pinout, R5F101LDAFA#V0 application, or R5F101LDAFA#V0 equivalent, key selection criteria include its 64-pin LQFP package, absence of on-chip data flash, -40°C to +85°C industrial temperature rating, and support for CSI, UART/LIN, I²C, 16-bit timers, and 10-bit ADC with 26-channel analog input.
Technical Context
The R5F101LDAFA#V0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It integrates a high-accuracy ±1.0% on-chip oscillator, real-time clock with calendar/alarm, and hardware multiplier/divider for efficient signal processing.
Its peripheral set includes up to 16 channels of 16-bit timer, 3–10 I²C/Simplified I²C channels, 2–4 UART/LIN interfaces, and an 8/10-bit A/D converter with internal 1.45 V reference and temperature sensor-configured for embedded control where mixed-signal integration and low active/idle power are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for deterministic real-time task execution |
| Flash Memory | 128 KB code flash - supports self-programming with boot swap and flash shield window |
| RAM | 12 KB on-chip RAM - sufficient for RTOS stacks, communication buffers, and control algorithms |
| ADC Resolution & Channels | 10-bit resolution, 26 analog inputs - enables multi-sensor monitoring without external mux |
| Power Consumption | 66 μA/MHz active; 0.57 μA in RTC+LVD mode - extends battery life in always-on sensing nodes |
| Operating Temperature | -40°C to +85°C - qualified for industrial environments including factory automation and HVAC controls |
Pinout & Package
Package: 64-pin LQFP, 12 × 12 mm, 0.65-mm pitch (JEDEC MS-026), lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared serial interface pin supporting master/slave operation in multiple protocols |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function pin enabling flexible peripheral routing and debug interface reuse |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Dual-role pin simplifies reference design and reduces external component count |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Enables ratiometric measurements and differential ADC configurations |
| P50/INTP0/TOOLRST | External Interrupt 0 / Debug Reset | Combines system-level fault response and programming interface functionality |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Reduces system energy use during idle periods without sacrificing wake-up latency or state retention |
| On-chip high-accuracy oscillator (±1.0%) | Eliminates external crystal for cost-sensitive applications while maintaining timing integrity for UART/LIN |
| Real-time clock with calendar & alarm | Supports time-stamped logging and scheduled wake-up without external RTC IC |
| Hardware multiplier/divider/MAC | Accelerates PID control, filtering, and sensor fusion math in firmware without CPU overhead |
| Background operation (BGO) for flash | Allows concurrent program execution and data flash updates - critical for field firmware updates |
Applications
| Industrial Sensor Node | Smart Energy Meter Interface |
|---|---|
Use Scenario: Battery-powered temperature/humidity/pressure sensor collecting data every 10 seconds and transmitting via UART-to-LoRaWAN gateway. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, RTC-triggered wake-up, low-power sleep sequencing, and serial protocol framing. Use Value: 0.57 μA RTC+LVD mode and 66 μA/MHz active current enable >5-year battery life; 26-channel ADC supports multi-sensor integration on single chip. |
Use Scenario: Sub-metering module interfacing with shunt-based current sensors, optical pulse counters, and RS-485 communication stack. IC Role / Device Role / Timing Role: Real-time data aggregator with precise timestamping, LIN-compatible UART for legacy meter communication, and secure flash update capability. Use Value: Integrated LIN support and 10-bit ADC with internal reference simplify compliance with IEC 62056; boot-swap firmware ensures zero-downtime field upgrades. |
| Factory Automation I/O Terminal | HVAC Zone Controller |
Use Scenario: DIN-rail mounted digital input/output terminal converting 24 V DC field signals to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol handler and isolation-aware GPIO manager with watchdog supervision and voltage detection. Use Value: On-chip LVD with 14 selectable levels enables robust brown-out detection across varying supply conditions; N-ch open-drain I/O supports direct 24 V interfacing. |
Use Scenario: Wall-mounted thermostat controlling fan speed, valve position, and occupancy sensing using PWM, DAC-equivalent GPIO, and capacitive touch. IC Role / Device Role / Timing Role: Mixed-signal hub coordinating temperature ADC, buzzer output, key interrupt, and real-time scheduling of HVAC cycles. Use Value: Integrated buzzer controller and key interrupt reduce BOM; RTC calendar function enables weekly heating/cooling schedules without external timekeeping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LDGFA#V0 | Same 128 KB flash, 12 KB RAM, 64-pin LQFP, but includes 8 KB data flash and G-grade (-40°C to +105°C) | Required for applications needing EEPROM-like nonvolatile storage or extended temperature operation | Select when field firmware parameter storage or automotive under-hood deployment is needed |
| R5F100LDAFA#V0 | Identical package and pinout, but includes 8 KB data flash and same D-grade (-40°C to +85°C) rating | Preferred where runtime configuration persistence (e.g., calibration data, metering logs) is mandatory | Choose if data flash endurance (1M rewrite cycles) and background operation are required alongside code flash |
Compared with R5F101LDAFA#V0, R5F101LDGFA#V0 adds data flash and higher temperature range at no pinout change, while R5F100LDAFA#V0 provides identical industrial temp rating but adds data flash - making both drop-in alternatives only when those specific features are needed.
Availability
R5F101LDAFA#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meter interfaces, and factory automation I/O terminals requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F101LDAFA#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, power, and SoC solutions for industrial, automotive, and enterprise markets.
The RL78/G13 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications demanding high integration, robustness, and long-term supply stability.
FAQ
What is the maximum operating frequency and performance of the R5F101LDAFA#V0?
The R5F101LDAFA#V0 operates at up to 32 MHz and delivers 41 DMIPS. Its RL78 CPU core uses a 3-stage pipeline and supports variable instruction execution times - from 0.03125 μs at full speed to 30.5 μs in ultra-low-speed mode - enabling precise trade-offs between performance and power in the R5F101LDAFA#V0.
Does the R5F101LDAFA#V0 include on-chip data flash memory?
No, the R5F101LDAFA#V0 does not include data flash memory. Per Renesas part numbering convention, the "101" prefix indicates no data flash, distinguishing it from "100" variants like R5F100LDAFA#V0 which integrate 8 KB of data flash. This makes the R5F101LDAFA#V0 ideal for applications where only code storage is required.
What is the operating temperature range for the R5F101LDAFA#V0?
The R5F101LDAFA#V0 is rated for industrial operation from -40°C to +85°C (D-grade). This is confirmed by its part number suffix "D", aligning with Renesas' standard grading scheme and qualifying the R5F101LDAFA#V0 for deployment in factory automation, building controls, and outdoor metering equipment.
Which serial interfaces are supported by the R5F101LDAFA#V0?
The R5F101LDAFA#V0 supports Simplified SPI (CSI) with 2–8 channels, UART/LIN with 2–4 channels, and I²C/Simplified I²C with 3–10 channels. These interfaces are fully configurable per pin and support simultaneous operation - essential for multi-protocol connectivity in the R5F101LDAFA#V0's target applications.
How does the R5F101LDAFA#V0 manage power efficiency in battery-powered systems?
The R5F101LDAFA#V0 achieves ultra-low power via HALT, STOP, and SNOOZE modes, consuming just 0.57 μA when running only the RTC and LVD. Its 66 μA/MHz active current and programmable voltage detector (14-level LVD) allow precise brown-out management - extending operational life in battery-powered deployments using the R5F101LDAFA#V0.
R5F101LDAFA#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:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 3K 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:
R5F101LDAFA#V0 FAQ
1.How can I place an order for R5F101LDAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LDAFA#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 R5F101LDAFA#V0 reliable?
The price and inventory of R5F101LDAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LDAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F101LDAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LDAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LDAFA#V0?
R5F101LDAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LDAFA#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 R5F101LDAFA#V0?
For technical support, including R5F101LDAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LDAFA#V0 requirements.
6.How does Aetrix verify that R5F101LDAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101LDAFA#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 R5F101LDAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F101LDAFA#V0?
All R5F101LDAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LDAFA#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 R5F101LDAFA#V0 part is unused and in its original packaging.
Return procedure for R5F101LDAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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