Renesas R5F101LGAFA#30
- Part No.:
- R5F101LGAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LGAFA#30.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:833
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Product details
Overview
R5F101LGAFA#30 from Renesas is a 64-pin LQFP-0.65mm, 128 KB flash, 8 KB RAM, RL78/G13 16-bit microcontroller with ultra-low-power operation (66 μA/MHz), real-time clock, 10-bit ADC (26 channels), and integrated UART/I²C/CSI interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101LGAFA#30 datasheet, R5F101LGAFA#30 pinout, R5F101LGAFA#30 application, or R5F101LGAFA#30 equivalent, key selection criteria include its data-flash-free architecture, -40°C to +85°C industrial temperature grade, 1.6–5.5 V supply range, and support for HALT/STOP/SNOOZE low-power modes in resource-constrained embedded control designs.
Technical Context
The R5F101LGAFA#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (@32 MHz) to 30.5 μs (@32.768 kHz), and features a 1 MB address space with four register banks. It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz) and operates across 1.6–5.5 V supply.
Its peripheral set includes eight 16-bit timers, one 12-bit interval timer, one calendar RTC with alarm/correction, one watchdog timer, two DMA channels, and a 10-bit A/D converter with internal 1.45 V reference and temperature sensor - all optimized for deterministic real-time control in cost-sensitive industrial nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash / RAM | 128 KB code flash memory; no data flash; 8 KB on-chip RAM |
| Supply Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V peripherals |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD enabled |
| ADC | 10-bit resolution, 26 analog input channels, internal 1.45 V reference, integrated temperature sensor |
| Timers & RTC | Eight 16-bit timers, one 12-bit interval timer, one calendar RTC (99-year range, alarm, correction) |
| Serial Interfaces | Up to 8 CSI (SPI-compatible), 4 UART/LIN, and 10 I²C/Simplified I²C channels |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, industrial-grade (TA = –40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI clock / I²C clock | Shared dual-function pin supporting synchronous serial master/slave timing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI input / UART receive / debug RX / I²C data | Multi-role pin enabling firmware update via UART, sensor comms via I²C, or peripheral control via SPI |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Configurable as primary ADC channel or precision voltage reference input for ratiometric sensing |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Supports differential ADC measurements or external reference biasing |
| P50/INTP0/TOOLnTRST | External interrupt 0 / JTAG reset | Enables wake-up from STOP mode and provides debug interface reset control |
| VDD, VSS | Power supply / ground | Dual VDD/VSS pairs ensure stable core and I/O domain operation under dynamic load |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power modes | HALT, STOP (0.57 μA), and SNOOZE enable rapid wake-up with minimal energy overhead for intermittent sensing |
| On-chip oscillator accuracy | ±1.0% over full voltage (1.8–5.5 V) and temperature (-20 to +85°C) range - eliminates need for external crystal in many applications |
| Self-programming capability | Boot swap and flash shield window functions allow safe field firmware updates without external programmer |
| Multi-voltage I/O | N-ch open-drain ports support 1.8/2.5/3.3 V logic interfacing - simplifies mixed-voltage system integration |
| Integrated RTC with correction | Hardware calendar with ±1 ppm correction function maintains time accuracy over temperature and aging without host intervention |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered gas/water meter with hourly pulse counting, temperature compensation, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing RTC-based reporting intervals, and handling UART-to-LoRaWAN gateway communication. Use Value: 0.57 μA STOP-mode current extends 10-year battery life; integrated RTC eliminates external timing IC; 10-bit ADC with temperature sensor enables on-chip calibration. |
Use Scenario: DIN-rail mounted environmental monitor measuring humidity, pressure, and ambient temperature in factory settings. IC Role / Device Role / Timing Role: Central acquisition unit sampling multiple analog sensors, buffering data in RAM, and transmitting via RS-485 using UART with hardware flow control. Use Value: 26-channel ADC supports multi-sensor analog front-end; 128 KB flash accommodates Modbus RTU stack + sensor fusion firmware; 1.6–5.5 V operation tolerates unregulated 24 VDC supply ripple. |
| Home Appliance Control | Medical Diagnostic Device |
|
Use Scenario: Low-cost washing machine mainboard controlling motor drivers, water valves, and user interface LEDs. IC Role / Device Role / Timing Role: Real-time sequencer coordinating PWM-driven triac outputs, reading rotary encoder inputs, and driving 7-segment display via built-in clock output/buzzer controller. Use Value: Eight 16-bit timers provide precise phase-controlled AC drive; on-chip key interrupt reduces GPIO count; N-ch open-drain I/O directly drives LED segments without external drivers. |
Use Scenario: Portable blood glucose meter requiring precise analog measurement, button-driven UI, and USB charging-aware power management. IC Role / Device Role / Timing Role: Signal acquisition controller performing 10-bit ADC conversion of electrochemical sensor output, managing button debouncing, and regulating charge status via LVD monitoring. Use Value: Internal 1.45 V reference ensures consistent ADC accuracy across battery discharge; LVD with 14-level selection enables programmable low-battery warning; STOP mode preserves RTC during sleep between tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LGAFB#30 | Same core, memory, and peripherals; differs only in package (64-pin LFQFP, 0.5 mm pitch vs. 0.65 mm) | Requires PCB layout revision due to finer pitch and different land pattern | Select when board space constraints favor smaller footprint or existing LFQFP assembly line compatibility |
| R5F100LGAFA#30 | Adds 8 KB data flash; otherwise identical flash/RAM/peripherals/timing/power specs | Required where firmware must store calibrated sensor offsets or field-updated configuration without external EEPROM | Choose when nonvolatile parameter storage is mandatory and additional 8 KB flash overhead is acceptable |
Compared with R5F101LGAFB#30, the R5F101LGAFA#30 offers identical functionality in a more widely supported LQFP-0.65mm package, while R5F100LGAFA#30 adds data flash at the cost of marginally higher BOM complexity - making R5F101LGAFA#30 optimal for cost-sensitive, flash-only firmware deployments.
Availability
R5F101LGAFA#30 is available at Aetrix Electronics and suitable for smart utility metering, industrial sensor nodes, home appliance control, medical diagnostic devices, and battery-backed IoT edge controllers requiring stable component supply across extended product lifecycles.
Supply support for R5F101LGAFA#30 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 automotive, industrial, and enterprise applications.
The RL78/G13 family delivers true low-power performance for general-purpose embedded control - designed specifically for cost-sensitive, battery-operated, and thermally constrained industrial and consumer systems demanding high integration and long-term reliability.
FAQ
What is the operating temperature range for the R5F101LGAFA#30?
The R5F101LGAFA#30 is rated for industrial operation from –40°C to +85°C, as indicated by the 'D' suffix in its part number family. This range is validated across all specified electrical characteristics including flash programming, ADC accuracy, and oscillator stability - making it suitable for deployment in harsh factory-floor or outdoor metering environments without thermal derating.
Does the R5F101LGAFA#30 include data flash memory?
No, the R5F101LGAFA#30 does not include data flash memory. Per Renesas' part numbering convention, the '101' prefix explicitly denotes models without data flash, distinguishing it from '100' variants like R5F100LGAFA#30 which integrate 8 KB of data flash. All nonvolatile storage for the R5F101LGAFA#30 must be implemented externally or managed within code flash using wear-leveling techniques.
Which development tools support the R5F101LGAFA#30?
The R5F101LGAFA#30 is fully supported by Renesas' CS+ IDE, e² studio (with GCC RL78 toolchain), and the E2 emulator Lite. Hardware debugging uses the 10-pin JTAG connector (pinout compatible with E2/E2 Lite), and the device's on-chip debug function enables full breakpoint, watchpoint, and memory inspection capabilities - all verified with the R5F101LGAFA#30 silicon revision per R01DS0131EJ0380.
Can the R5F101LGAFA#30 operate from a single 3.3 V supply?
Yes, the R5F101LGAFA#30 operates reliably across 1.6 V to 5.5 V, including standard 3.3 V nominal supplies. At 3.3 V, it achieves full 32 MHz operation with the high-speed on-chip oscillator, supports all I/O functions (including TTL input buffer and N-ch open-drain modes), and maintains specified ADC accuracy and RTC stability - confirmed in Section 1.1 and Electrical Characteristics tables of the official datasheet.
How many analog input channels does the R5F101LGAFA#30 support?
The R5F101LGAFA#30 supports up to 26 analog input channels for its 10-bit A/D converter, as documented in the RL78/G13 datasheet Section 1.1 Features and verified in the Pin Configuration table for the 64-pin LQFP variant. Channel mapping includes dedicated ANI0–ANI25 pins plus shared functions on P20–P27 and P30–P37, with full routing flexibility controlled via the ADSPR register.
R5F101LGAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 12K 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:
R5F101LGAFA#30 FAQ
1.How can I place an order for R5F101LGAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LGAFA#30 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 R5F101LGAFA#30 reliable?
The price and inventory of R5F101LGAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LGAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F101LGAFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LGAFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LGAFA#30?
R5F101LGAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LGAFA#30 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 R5F101LGAFA#30?
For technical support, including R5F101LGAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LGAFA#30 requirements.
6.How does Aetrix verify that R5F101LGAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F101LGAFA#30 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 R5F101LGAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F101LGAFA#30?
All R5F101LGAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LGAFA#30, 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 R5F101LGAFA#30 part is unused and in its original packaging.
Return procedure for R5F101LGAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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