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Renesas R5F101LGAFB#X0
- Part No.:
- R5F101LGAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LGAFB#X0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,512
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Product details
Overview
R5F101LGAFB#X0 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), 96 KB flash, 8 KB data flash, 8 KB RAM RL78/G13 16-bit microcontroller operating from 1.6 V to 5.5 V, delivering 41 DMIPS at 32 MHz and featuring ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode) for battery-powered industrial control and sensor interface applications.
For engineers reviewing the R5F101LGAFB#X0 datasheet, R5F101LGAFB#X0 pinout, R5F101LGAFB#X0 application, or R5F101LGAFB#X0 equivalent, key selection criteria include its integrated real-time clock with calendar/alarm, 10-bit 26-channel ADC with internal temperature sensor, dual UART/LIN support, and hardware DMA for deterministic peripheral handling in resource-constrained embedded systems.
Technical Context
The R5F101LGAFB#X0 implements the RL78 CPU core with a 3-stage CISC pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed oscillator) to 30.5 μs (32.768 kHz subsystem clock). It integrates on-chip power management including HALT, STOP, and SNOOZE low-power modes, plus a voltage detector with 14 selectable LVD levels.
Its peripheral set includes up to 16 channels of 16-bit timer, one 12-bit interval timer, one real-time clock with calendar and clock correction, one watchdog timer, and serial interfaces comprising up to 8 CSI, 4 UART/LIN, and 10 I²C channels - all configurable without external components.
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 - enables 41 DMIPS performance for real-time control loops |
| Flash Memory | 96 KB code flash - sufficient for complex firmware with bootloader and safety checks |
| Data Flash | 8 KB - supports 1,000,000 write cycles for parameter storage and field updates |
| RAM | 8 KB - accommodates stack, heap, and real-time buffers for multi-tasking RTOS |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temperature sensor |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA), SNOOZE - extends battery life in portable devices |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support stable operation across 1.6–5.5 V; decoupling required per datasheet layout guidelines |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77 | General-purpose I/O ports | Up to 54 programmable I/O pins with N-ch open-drain, TTL input, and pull-up options; supports 1.8/2.5/3.0 V logic interfacing |
| P20/ANI0/AVREFP, P21/ANI1/AVREFM | Analog input / ADC reference | Dedicated analog inputs with differential reference capability for precision sensor signal acquisition |
| P10/SCK00/SCL00, P11/SI00/RxD0/TOOLRxD/SDA00 | Serial interface multiplexing | Shared pins for CSI0, UART0, I²C0, and debug interface - requires careful peripheral assignment during initialization |
| RESET, NMIX | Reset and NMI input | Active-low reset with internal POR; NMIX supports non-maskable interrupt for critical fault detection |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Enables in-field firmware updates via boot swap and flash shield window protection |
| Background operation | Data flash rewrite while executing code from program memory - no CPU stall during logging |
| Real-time clock (RTC) | Full calendar (99-year range), alarm, and auto-correction - eliminates external RTC IC |
| Hardware DMA controller | 4-channel DMA with 2-clock transfer latency between SFR and RAM - offloads CPU for sensor data streaming |
| Integrated LIN transceiver support | UART0 with LIN bus protocol compliance - reduces BOM count in automotive body electronics |
Applications
| Industrial Sensor Node | Smart Home Thermostat |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity node with local display and BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based wake scheduling, UART-to-BLE bridge, and low-power state transitions. Use Value: 0.57 μA STOP mode with RTC alarm enables multi-year battery life; 10-bit ADC + internal temp sensor eliminates external sensing components. |
Use Scenario: Wall-mounted HVAC controller with touch interface, ambient sensing, and Wi-Fi connectivity. IC Role / Device Role / Timing Role: Primary MCU handling UI responsiveness, sensor fusion, communication stack timing, and thermal safety monitoring. Use Value: 41 DMIPS at 32 MHz ensures smooth UI rendering and fast PID loop execution; integrated LIN support enables direct connection to HVAC actuators. |
| Energy Meter Front-End | Programmable Logic Controller (PLC) I/O Module |
|
Use Scenario: DIN-rail mounted electricity meter with metrology IC interface and tamper detection. IC Role / Device Role / Timing Role: Data concentrator and security manager interfacing with metrology ASIC via SPI, logging events to data flash, and enforcing secure boot. Use Value: 8 KB data flash with 1M write endurance stores decades of tamper logs; hardware CRC and flash shield window prevent unauthorized firmware modification. |
Use Scenario: Modular digital input/output expansion unit for industrial automation with isolated RS-485 fieldbus. IC Role / Device Role / Timing Role: Protocol handler and I/O scheduler managing discrete input debouncing, output PWM generation, and Modbus RTU framing. Use Value: 16-channel 16-bit timers enable precise pulse-width control for valve actuation; UART/LIN dual-mode supports legacy and modern fieldbus integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LGAFB#V0 | Same die, tray packaging instead of embossed tape; identical electrical specs and pinout | No functional difference - selected for manual assembly or small-batch prototyping | Choose #V0 for lab evaluation or low-volume production where tape-and-reel feeding is not required |
| R5F101LGAFA#X0 | LQFP-64 (12 × 12 mm, 0.65-mm pitch); same memory and peripherals but larger footprint and different thermal profile | Requires PCB redesign due to pitch and pad layout mismatch; higher thermal mass affects thermal response | Select only when existing board uses 0.65-mm pitch LQFP and mechanical constraints prohibit 0.5-mm LFQFP |
Compared with R5F101LGAFB#V0 and R5F101LGAFA#X0, the R5F101LGAFB#X0 offers optimal balance of compact 0.5-mm pitch packaging, tape-and-reel compatibility for automated SMT lines, and full feature parity - making it the preferred choice for high-volume industrial manufacturing.
Availability
R5F101LGAFB#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart home thermostats, and energy meter front-ends requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F101LGAFB#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 IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - emphasizing rapid development, minimal external components, and robust operation across extended temperature ranges (-40°C to +105°C).
FAQ
What is the maximum operating frequency and corresponding performance of the R5F101LGAFB#X0?
The R5F101LGAFB#X0 operates at up to 32 MHz using its high-accuracy on-chip oscillator (±1.0% over -20°C to +85°C), delivering 41 DMIPS of processing performance. This enables deterministic execution of real-time control algorithms, communication stacks, and sensor fusion tasks without external clock sources.
Does the R5F101LGAFB#X0 include an integrated real-time clock (RTC)?
Yes, the R5F101LGAFB#X0 includes a dedicated real-time clock module supporting full calendar functionality (year/month/day/hour/minute/second), alarm interrupts, and automatic clock correction. It operates independently in STOP mode with only 0.57 μA current draw, enabling time-stamped event logging and scheduled wake-ups.
How much data flash memory does the R5F101LGAFB#X0 provide, and what is its endurance?
The R5F101LGAFB#X0 provides 8 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles at VDD = 1.8–5.5 V. It supports background operation (BGO), allowing program execution from code flash while rewriting data flash - essential for reliable firmware update and parameter storage.
What low-power modes are supported by the R5F101LGAFB#X0, and what are their typical current draws?
The R5F101LGAFB#X0 supports HALT (66 μA/MHz), STOP (0.57 μA with RTC + LVD active), and SNOOZE modes. In STOP mode, it maintains RTC operation, LVD monitoring, and wake-on-pin functionality while drawing less than 1 μA - ideal for battery-powered endpoints requiring multi-year operation.
Is the R5F101LGAFB#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, the R5F101LGAFB#X0 shares identical pinout and package (64-pin LFQFP, 0.5-mm pitch) with all other RL78/G13 devices in the FB suffix family, including R5F100LGAFB#X0 and R5F101LGAFB#V0. Firmware and PCB layout are interchangeable across these variants when memory and peripheral requirements align.
R5F101LGAFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
R5F101LGAFB#X0 FAQ
1.How can I place an order for R5F101LGAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LGAFB#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 R5F101LGAFB#X0 reliable?
The price and inventory of R5F101LGAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LGAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LGAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LGAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LGAFB#X0?
R5F101LGAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LGAFB#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 R5F101LGAFB#X0?
For technical support, including R5F101LGAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LGAFB#X0 requirements.
6.How does Aetrix verify that R5F101LGAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LGAFB#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 R5F101LGAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LGAFB#X0?
All R5F101LGAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LGAFB#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 R5F101LGAFB#X0 part is unused and in its original packaging.
Return procedure for R5F101LGAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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