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Renesas R5F10RG8GFB#X0
- Part No.:
- R5F10RG8GFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F10RG8GFB#X0.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,977
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Product details
Overview
R5F10RG8GFB#X0 from Renesas is an 8 KB flash, 1.5 KB RAM, 48-pin LFQFP microcontroller in the RL78/L12 family, featuring an integrated LCD controller/driver (up to 35 seg × 8 com), 10-bit ADC (10 channels), RTC with calendar/alarm, and ultra-low-power operation (0.64 µA in Halt mode with RTC + LVD). It targets battery-powered LCD display applications such as smart meters, thermostats, and industrial HMIs.
For engineers reviewing the R5F10RG8GFB#X0 datasheet, R5F10RG8GFB#X0 pinout, R5F10RG8GFB#X0 application, or R5F10RG8GFB#X0 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm pitch package, industrial-grade −40°C to +105°C operation, on-chip LCD drive capability with capacitor-split and internal-boost methods, and support for I²C, UART, and simplified SPI interfaces.
Technical Context
The R5F10RG8GFB#X0 implements the 16-bit RL78 CPU core delivering 31 DMIPS at 24 MHz, with Harvard architecture, 3-stage pipeline, and 86% of instructions executed in 1–2 clock cycles. It integrates a high-speed on-chip oscillator (24 MHz ±1% over voltage/temperature) and supports multiple clock sources including external crystal (X1/X2) and subsystem clock (XT1/XT2).
Its peripheral set includes a 2-channel DMA controller, 8-channel 16-bit timer array, 12-bit interval timer, windowed watchdog timer, and safety features compliant with IEC/UL 60730 - including flash CRC, RAM parity check, SFR write protection, and illegal memory access detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU, 31 DMIPS @ 24 MHz, 86% instructions in 1–2 cycles |
| Flash / Data Flash / RAM | 8 KB code flash, 2 KB data flash (1M erase cycles), 1.5 KB RAM with backup retention |
| Operating Voltage | 1.6 V to 5.5 V single supply; supports low-voltage operation down to 1.6 V for ADC and logic |
| Power Consumption | 62.5 µA/MHz active; 0.64 µA Halt (RTC + LVD enabled); 0.23 µA Stop (RAM retained) |
| LCD Drive | Configurable for 35 seg × 8 com or 39 seg × 4 com; supports capacitor-split, internal-boost, and resistance-division methods |
| Analog Peripherals | 10-channel 10-bit ADC (2.1 µs conversion), internal 1.45 V reference, on-chip temperature sensor |
| Communication | 1× I²C, 2× simplified SPI (CSI), 1× UART (7–9 bit), 1× LIN, all with flexible pin assignment via PIOR |
| Package | 48-pin LFQFP, 7 mm × 7 mm, 0.5 mm pitch, industrial temperature grade (−40°C to +105°C) |
Pinout & Package
48-pin plastic LFQFP (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, tape-and-reel packaging (#X0 specification). Pin functions are configurable via Peripheral I/O Redirection Register (PIOR) for multiplexed peripherals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 I/O | 8-bit general-purpose port with interrupt, pull-up, and open-drain support; used for UART/SPI/CSI signals |
| P20/P21 | Port 2 Analog I/O | ADC input (ANI0/ANI1), analog reference (AVREFP/AVREFM); 5 V tolerant |
| P30–P32 | Port 3 Timer/LCD | Timer I/O (TI01/TO01, TI03/TO03), RTC1HZ output, and KR3 key return |
| P40/P41 | Port 4 Mixed I/O | Debug interface (TOOL0), ADC input (ANI16), timer I/O (TI04/TO04) |
| P50 | Port 5 Interrupt | INTP5 input; also supports PCLBUZ0 buzzer output when configured |
| P60/P61 | I²C Interface | SCLA0/SDAA0 pins for I²C master/slave communication with internal pull-ups |
| P70/P71 | Key Return | KR0/KR1 inputs for keypad scanning; compatible with capacitive or resistive key matrix |
| COM0–COM7 | LCD Common Outputs | 8 common-line drivers supporting up to 8 multiplexed LCD segments per common |
| SEG0–SEG35 | LCD Segment Outputs | 36 segment outputs enabling up to 35 × 8 com or 39 × 4 com LCD configurations |
| VDD/VSS | Power/Ground | Core power (1.6–5.5 V); VSS referenced for analog and digital domains |
| REGC | Regulator Decoupling | Connect 0.47–1 µF capacitor to VSS to stabilize internal voltage regulator |
| X1/X2 | Main Crystal Oscillator | Supports 1–20 MHz crystal; enables precise timing for RTC and system clock |
| RESET | Active-Low Reset | Asynchronous reset input with internal pull-up; triggers POR/LVD reset sequence |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Halt mode | 0.64 µA with RTC and LVD active-enables multi-year battery life in metering and sensor nodes |
| Integrated LCD controller | Direct drive of up to 280 segments (35 × 8) without external bias circuitry or boost IC |
| On-chip debug interface | Single-wire on-chip debug (SWD) via TOOL0/P40-no external debugger required for firmware development |
| Data flash background operation | 2 KB data flash supports concurrent read/write; enables reliable logging and parameter storage during runtime |
| IEC/UL 60730 safety compliance | Hardware-level CRC, RAM parity, SFR protection, and clock monitoring-reduces functional safety certification effort |
| Flexible clock configuration | Four clock sources (HS on-chip, LS on-chip, main crystal X1/X2, subsystem XT1/XT2) with automatic failover and frequency detection |
Applications
| Smart Energy Meter | Industrial Thermostat |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD display, real-time tariff tracking, and tamper detection. IC Role / Device Role / Timing Role: Primary system MCU managing LCD rendering, metrology interface (via ADC/timers), secure data logging (data flash), and RTC-based billing cycles. Use Value: Ultra-low 0.64 µA Halt current extends battery life beyond 10 years; integrated LCD driver eliminates external bias components and reduces BOM cost by ≥$0.35. | Use Scenario: DIN-rail mounted HVAC controller with 4-digit LCD, keypad input, temperature sensing, and relay control. IC Role / Device Role / Timing Role: Central controller handling sensor acquisition (ADC), user interface (LCD/keypad), relay timing (16-bit timers), and communication (UART/I²C to sensors). Use Value: −40°C to +105°C rating ensures reliability in unconditioned electrical cabinets; KR0–KR3 key return pins simplify 4×4 keypad scanning with no external logic. |
| Portable Medical Device | Appliance Control Panel |
Use Scenario: Handheld blood glucose monitor with LCD, button interface, and USB charging status indication. IC Role / Device Role / Timing Role: System-on-chip managing glucose sensor ADC sampling, LCD contrast adjustment (16-step), buzzer alerts (PCLBUZ0/1), and low-battery warning (LVD). Use Value: 1.6 V minimum operating voltage allows direct use of single-cell Li-ion (2.5–4.2 V) without buck-boost; internal 1.45 V reference ensures stable ADC accuracy across battery discharge. | Use Scenario: Microwave oven or washing machine front panel with 3-line LCD, touch-free keypad, and motor control feedback. IC Role / Device Role / Timing Role: UI controller driving LCD segments, scanning KR lines for keypresses, generating PWM for buzzer feedback, and communicating with main MCU via I²C. Use Value: 48-pin LFQFP fits compact PCB layouts; 20 mA sink/source per I/O enables direct LED/buzzer drive-eliminates 6–8 discrete transistors per design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RGAGFB#X0 | 16 KB flash, same 48-pin LFQFP package, identical peripherals and pinout | Required when firmware exceeds 8 KB or future-proofing for feature expansion is needed | Select R5F10RGAGFB#X0 if code size growth is anticipated; no PCB or firmware changes needed |
| R5F10RJ8GFA#X0 | 52-pin LQFP (10 × 10 mm, 0.65 mm pitch), 8 KB flash, adds 4 extra I/O and 2 additional ADC channels | Suitable when more GPIO or analog inputs are required, but requires PCB layout change | Choose R5F10RJ8GFA#X0 only if additional I/O or ADC channels justify re-spinning the board |
Compared with R5F10RG8GFB#X0, R5F10RGAGFB#X0 offers immediate flash scalability without hardware modification, while R5F10RJ8GFA#X0 trades package compatibility for expanded analog and digital I/O-making the former ideal for incremental firmware upgrades and the latter for new designs needing higher peripheral density.
Availability
R5F10RG8GFB#X0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and portable medical device applications requiring stable component supply, long-term lifecycle assurance, and industrial-temperature-grade reliability.
Supply support for R5F10RG8GFB#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 automotive, industrial, and IoT markets.
The RL78/L12 product line delivers true low-power MCUs optimized for LCD-based human interface applications, integrating high-efficiency CPU, on-chip LCD driver, and robust safety features for cost-sensitive, battery-operated systems.
FAQ
What is the maximum operating frequency and performance of the R5F10RG8GFB#X0?
The R5F10RG8GFB#X0 operates at up to 24 MHz using its high-speed on-chip oscillator, delivering 31 DMIPS of processing performance. Its 16-bit RL78 core executes 86% of instructions in just 1–2 clock cycles due to its 3-stage pipeline and CISC Harvard architecture-enabling responsive real-time control in LCD-driven applications without external clock crystals.
Does the R5F10RG8GFB#X0 support industrial temperature range operation?
Yes, the R5F10RG8GFB#X0 is rated for −40°C to +105°C ambient operation (industrial grade "G" suffix), making it suitable for deployment in harsh environments such as electrical distribution panels, factory automation HMIs, and outdoor utility equipment where extended thermal stability is critical.
How many LCD segments and commons does the R5F10RG8GFB#X0 support?
The R5F10RG8GFB#X0 supports up to 35 segment × 8 common or 39 segment × 4 common LCD configurations, with dedicated SEG0–SEG35 and COM0–COM7 pins. It provides three drive methods-capacitor-split, internal voltage boost, and external resistance division-allowing flexible display design without external bias ICs.
What safety features does the R5F10RG8GFB#X0 include for certified applications?
The R5F10RG8GFB#X0 includes hardware-level safety mechanisms aligned with IEC/UL 60730, including flash memory CRC calculation, RAM parity error checking, SFR write protection, illegal memory access detection, clock frequency monitoring, and ADC self-test-reducing software validation burden for Class B appliance and industrial control certifications.
Can the R5F10RG8GFB#X0 operate from a single 1.8 V supply?
Yes, the R5F10RG8GFB#X0 supports operation from 1.6 V to 5.5 V, including full functionality at 1.8 V. At this voltage, the ADC remains operational with internal 1.45 V reference, and the CPU runs at reduced frequency (≤16 MHz HS mode); this enables direct integration with single-cell LiFePO₄ or NiMH batteries without regulation.
R5F10RG8GFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/L12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 33
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 9x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RG8GFB#X0 FAQ
1.How can I place an order for R5F10RG8GFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RG8GFB#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 R5F10RG8GFB#X0 reliable?
The price and inventory of R5F10RG8GFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RG8GFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F10RG8GFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RG8GFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RG8GFB#X0?
R5F10RG8GFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RG8GFB#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 R5F10RG8GFB#X0?
For technical support, including R5F10RG8GFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RG8GFB#X0 requirements.
6.How does Aetrix verify that R5F10RG8GFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F10RG8GFB#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 R5F10RG8GFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F10RG8GFB#X0?
All R5F10RG8GFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RG8GFB#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 R5F10RG8GFB#X0 part is unused and in its original packaging.
Return procedure for R5F10RG8GFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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