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Renesas R5F101LGAFA#50
- Part No.:
- R5F101LGAFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LGAFA#50.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F101LGAFA#50 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 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 R5F101LGAFA#50 datasheet, R5F101LGAFA#50 pinout, R5F101LGAFA#50 application, or R5F101LGAFA#50 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), integrated 10-bit ADC with 26 channels, and dual UART/LIN support for embedded control nodes.
Technical Context
The R5F101LGAFA#50 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 12-bit interval timer, real-time clock with calendar/alarm, and watchdog timer driven by a dedicated low-speed oscillator.
Peripheral integration includes up to 26-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor, 8–16 channels of 16-bit timers, 2–4 channel DMA controller, and serial interfaces: CSI (SPI-compatible), UART/LIN (2 channels), and I²C (up to 10 channels).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz - delivers 41 DMIPS for real-time control loop 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 and sensor data buffering |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temperature sensor |
| 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 |
| Operating Temp | –40°C to +85°C - qualified for industrial ambient conditions without derating |
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 (CSI0) or I²C clock - enables dual-protocol peripheral interfacing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data input / UART receive / I²C data | Multi-function pin supporting SPI input, UART RX, debug tool interface, and I²C bidirectional data |
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary analog input channel 0 and selectable positive reference for ADC voltage measurement |
| P21/ANI1/AVREFM | Analog input / ADC reference negative | Analog input channel 1 and selectable negative reference - enables ratiometric or differential sensing |
| P30/INTP0/TOOLRST | External interrupt / debug reset | Dual-role pin for hardware interrupt triggering and on-chip debugger reset assertion |
| VDD, VSS | Power supply and ground | Dedicated power pins per section - ensures stable core and I/O domain operation under mixed-signal loads |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | 0.57 μA RTC+LVD active current enables >10-year battery life in periodic wake-up sensor nodes |
| On-chip high-accuracy oscillator | +/-1.0% accuracy (1.8–5.5 V, –20 to +85°C) eliminates need for external crystal in cost-sensitive designs |
| Background data flash operation | Not applicable - R5F101LGAFA#50 has no data flash; code flash supports self-programming only |
| Multi-voltage I/O interface | Supports 1.8 V, 2.5 V, and 3 V logic levels - simplifies interconnection with heterogeneous peripheral ICs |
| LIN bus compliance | UART channel supports LIN 2.2 physical layer timing - enables automotive body electronics integration |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Standalone electricity/water/gas meter with pulse counting, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, EEPROM logging, and LIN/UART-based host communication. Use Value: 128 KB flash stores firmware + calibration tables; 10-bit ADC with internal reference enables accurate analog front-end digitization without external references. |
Use Scenario: Wireless or wired environmental sensor hub measuring temperature, humidity, and CO₂ with local display and alarm output. IC Role / Device Role / Timing Role: Central data aggregator executing sensor fusion, real-time clock timestamping, and UART-to-Bluetooth bridge logic. Use Value: RTC with calendar/alarm supports scheduled wake-ups and time-stamped logs; 26-channel ADC accommodates multi-sensor analog inputs simultaneously. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine main control board managing motor drive, water valve sequencing, and user interface. IC Role / Device Role / Timing Role: Real-time sequencer coordinating PWM outputs, reading hall-effect sensors, and handling touch-button interrupts. Use Value: 16-bit timers with complementary outputs enable precise motor phase control; N-ch open-drain I/O drives solenoids and relays directly. |
Use Scenario: HVAC zone controller with temperature setpoint adjustment, fan speed modulation, and BACnet MSTP communication. IC Role / Device Role / Timing Role: Protocol-aware controller implementing UART-based MSTP framing and PID loop execution at 100 ms intervals. Use Value: Dual UART channels allow simultaneous debug port and fieldbus interface; 41 DMIPS headroom supports floating-point PID calculations in real time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LGAFB#50 | Same core, memory, and peripherals but in 64-pin LFQFP (0.5-mm pitch); no data flash | Requires PCB redesign due to finer pitch and different land pattern | Select when board space constraints favor smaller footprint or existing LFQFP layout reuse is needed |
| R5F100LGAFA#50 | Identical package and pinout, but includes 8 KB data flash and same 128 KB code flash | Enables EEPROM-like parameter storage without external serial flash; higher BOM cost | Choose when field-updatable configuration or event logging requires nonvolatile data retention beyond code flash |
Compared with R5F101LGAFB#50, the R5F101LGAFA#50 offers identical functionality in a more manufacturable 0.65-mm pitch LQFP, while R5F100LGAFA#50 adds data flash at the cost of higher unit price and marginally increased power in data write cycles.
Availability
R5F101LGAFA#50 is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor nodes, home appliance control, building automation panels, and battery-powered IoT edge devices requiring stable component supply across extended product lifecycles.
Supply support for R5F101LGAFA#50 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 applications.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded systems - emphasizing rapid development, minimal external components, and long-term supply stability for industrial and consumer equipment.
FAQ
What is the maximum operating frequency and performance rating of the R5F101LGAFA#50?
The R5F101LGAFA#50 operates at up to 32 MHz and delivers 41 DMIPS (Dhrystone MIPS) performance. Its RL78 CPU core achieves this with a 3-stage pipeline and optimized instruction set, enabling deterministic real-time response for control loops and protocol stacks without requiring external accelerators or caches.
Does the R5F101LGAFA#50 include on-chip data flash memory?
No, the R5F101LGAFA#50 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 R5F100LGAFA#50 which integrate 8 KB of data flash. Code flash remains fully functional for self-programming with boot swap capability.
What package type and pin count does the R5F101LGAFA#50 use?
The R5F101LGAFA#50 uses a 64-pin LQFP package with 0.65-mm pitch (RENESAS code PLQP0064JA-A). This package is compatible with standard surface-mount assembly processes and provides full access to all I/O, timer, communication, and analog resources defined for the RL78/G13 64-pin variant group.
What are the supported low-power modes and their typical current consumption for the R5F101LGAFA#50?
The R5F101LGAFA#50 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws 0.57 μA typical. HALT mode consumes 66 μA/MHz during active operation, enabling efficient dynamic power scaling based on processing load and peripheral activity.
Which serial communication interfaces are available on the R5F101LGAFA#50?
The R5F101LGAFA#50 integrates CSI (SPI-compatible), UART/LIN (2 channels), and I²C (up to 10 channels). UART channels support LIN 2.2 physical layer timing, making the R5F101LGAFA#50 suitable for automotive body electronics and industrial fieldbus gateways requiring robust asynchronous communication.
R5F101LGAFA#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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#50 FAQ
1.How can I place an order for R5F101LGAFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LGAFA#50 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#50 reliable?
The price and inventory of R5F101LGAFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LGAFA#50 is usually 5 days.
3.What payment methods are accepted for R5F101LGAFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LGAFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LGAFA#50?
R5F101LGAFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LGAFA#50 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#50?
For technical support, including R5F101LGAFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LGAFA#50 requirements.
6.How does Aetrix verify that R5F101LGAFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F101LGAFA#50 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#50 meets industry standards.
7.What is the process for return or replacement of R5F101LGAFA#50?
All R5F101LGAFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LGAFA#50, 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#50 part is unused and in its original packaging.
Return procedure for R5F101LGAFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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