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Renesas R5F10RG8AFB#10
- Part No.:
- R5F10RG8AFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F10RG8AFB#10.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,725
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Product details
Overview
R5F10RG8AFB#10 from Renesas is an 8 KB flash, 1.5 KB RAM, 48-pin LFQFP microcontroller in the RL78/L12 family, featuring integrated LCD controller/driver (up to 35 seg × 8 com), 10-bit ADC (10 channels), real-time clock with calendar, and ultra-low-power operation (0.64 µA in RTC+LVD mode). It targets battery-powered LCD display applications such as smart meters, thermostats, and portable medical devices.
For engineers reviewing the R5F10RG8AFB#10 datasheet, R5F10RG8AFB#10 pinout, R5F10RG8AFB#10 application, or R5F10RG8AFB#10 equivalent, key selection criteria include its 48-pin 0.5 mm pitch LFQFP package, 8 KB code flash with data flash, LCD drive capability without external bias, and support for 1.6 V–5.5 V single-supply operation with full -40°C to +85°C industrial temperature range.
Technical Context
The R5F10RG8AFB#10 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 cycles. Its on-chip high-speed oscillator achieves ±1% accuracy across 1.8 V–5.5 V and −20°C to +85°C.
It integrates a dedicated LCD controller supporting capacitor split, internal voltage boost, and resistance division methods; configurable segment/com output (up to 35×8 or 39×4); and 16-step contrast control. The device includes two DMA channels, UART, I²C, two CSI (SPI-compatible) interfaces, and safety features compliant with IEC/UL 60730 including CRC, RAM parity, and illegal 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 |
| Memory | 8 KB code flash, 2 KB data flash, 1.5 KB RAM with backup retention |
| Power | 1.6 V–5.5 V supply; 0.64 µA RTC+LVD mode; 62.5 µA/MHz active |
| LCD Drive | Up to 35 seg × 8 com or 39 seg × 4 com; supports capacitor split & internal boost |
| ADC | 10-bit resolution, 10 channels, 2.1 µs conversion time, supports 1.6 V min input |
| Timers | 8-channel 16-bit timer array, RTC with full calendar/alarm, 12-bit interval timer, 15 kHz WDT |
| Interfaces | 1× UART, 1× I²C, 2× CSI (SPI-compatible), 2× DMA channels |
Pinout & Package
48-pin plastic LFQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, with exposed pad not present (non-HWQFN).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 I/O | 8-bit general-purpose CMOS I/O with pull-up, open-drain, and peripheral function redirection |
| P20/P21 | Analog Input / Reference | ANI0/ANI1 inputs with AVREFP/AVREFM for 10-bit ADC reference |
| P30–P32 | Timer I/O / RTC | TI01/TO01, TI03/TO03, and RTC1HZ output for timing and event capture |
| P40/P41 | Tool Interface / Analog Input | TOOL0 for debug; ANI16 input for sensor interface |
| P60/P61 | I²C Interface | SCLA0/SDAA0 pins for standard-mode I²C communication |
| P70/P71 | Key Return | KR0/KR1 inputs for keypad scanning in low-power modes |
| P121/P122 | Crystal Oscillator | X1/X2 connections for main system clock (1–20 MHz crystal) |
| P126/P127 | LCD Capacitor Terminals | CAPL/CAPH pins for external capacitor connection in capacitor-split LCD drive |
| VL1–VL4 | LCD Power Supply | Four independent LCD bias voltage outputs for segment/common drive |
| COM0–COM7 | LCD Common Outputs | 8 common-line drivers supporting up to 8 multiplexed LCD segments |
| SEG0–SEG35 | LCD Segment Outputs | 36 segment drivers enabling up to 35×8 or 39×4 LCD configurations |
| RESET | Active-Low Reset | Asynchronous reset input with internal pull-up; triggers POR/LVD reset sequence |
| REGC | Voltage Regulator Cap | Connection point for 0.47–1 µF capacitor to stabilize internal LDO regulator |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power RTC mode | 0.64 µA consumption with real-time clock and low-voltage detector enabled |
| Integrated LCD driver | Eliminates need for external LCD bias IC; supports 35×8 or 39×4 segment/com configurations |
| Self-programmable flash | Enables firmware updates in-system with flash shield window protection against accidental writes |
| IEC/UL 60730 compliance | Includes hardware CRC, RAM parity, SFR write protection, and illegal memory access detection |
| Flexible clock system | Combines high-speed on-chip oscillator (±1% @ 24 MHz), crystal options (X1/X2, XT1/XT2), and low-speed internal 15 kHz RC |
Applications
| Smart Energy Meter | Programmable Thermostat |
|---|---|
Use Scenario: Battery-powered residential electricity meter with segmented LCD display showing kWh, tariff, and time-of-use data. IC Role / Device Role / Timing Role: Primary MCU managing energy measurement peripherals, LCD refresh, RTC-based billing intervals, and secure data logging. Use Value: Ultra-low 0.64 µA RTC+LVD mode extends 10-year battery life; integrated LCD driver reduces BOM count by eliminating external bias IC. | Use Scenario: HVAC control unit with 4-digit LCD display, temperature/humidity sensing, and user keypad interface. IC Role / Device Role / Timing Role: System controller handling sensor ADC reads, keypad scan via KR0–KR3, LCD update, and HVAC relay timing. Use Value: 10-bit ADC with internal 1.45 V reference enables accurate analog sensing; 8 KB flash accommodates PID control algorithms and UI logic. |
| Portable Medical Monitor | Industrial Panel Display |
Use Scenario: Handheld pulse oximeter with OLED/LCD display, LED drivers, and optical sensor interface. IC Role / Device Role / Timing Role: Central processor executing signal processing, driving display segments, and managing low-power sleep/wake cycles. Use Value: Snooze mode allows rapid wake from deep sleep using timer or key interrupt; 1.6 V minimum supply supports aging alkaline batteries. | Use Scenario: Factory floor HMI with 2-line LCD, pushbutton controls, and RS-485 communication to PLC. IC Role / Device Role / Timing Role: Local display controller interfacing with host via UART/I²C, updating LCD content, and debouncing mechanical buttons. Use Value: 48-pin LFQFP provides sufficient I/O for COM/SEG lines and serial interface; −40°C to +85°C rating ensures reliability in unconditioned environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RGAAFB#10 | 16 KB flash, same 48-pin LFQFP package, identical peripherals and pinout | Supports larger firmware images and more complex UI logic; no change to PCB layout or LCD interface | Select when firmware size exceeds 8 KB or future scalability is required |
| R5F10RF8AFP#V0 | 44-pin LQFP (10×10 mm, 0.8 mm pitch), 8 KB flash, 1 KB RAM, reduced I/O count (40 total pins) | Fewer LCD segment outputs (22 vs. 36) and no P41 ANI16; requires PCB redesign | Choose only if board space permits larger footprint and LCD complexity is lower |
Compared with R5F10RG8AFB#10, the R5F10RGAAFB#10 offers double flash capacity without altering pin compatibility or power profile, while the R5F10RF8AFP#V0 trades package compactness and LCD drive capability for cost and legacy footprint compatibility - making the R5F10RG8AFB#10 optimal for space-constrained, feature-rich LCD applications requiring long battery life.
Availability
R5F10RG8AFB#10 is available at Aetrix Electronics and suitable for smart energy meters, programmable thermostats, portable medical monitors, and industrial panel displays requiring stable component supply and long-term lifecycle support.
Supply support for R5F10RG8AFB#10 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 is designed specifically for ultra-low-power LCD-based applications, integrating high-efficiency CPU, on-chip LCD controller/driver, and robust safety features to minimize external components and extend battery life.
FAQ
What is the maximum operating frequency and power efficiency of the R5F10RG8AFB#10?
The R5F10RG8AFB#10 operates at up to 24 MHz with its high-speed on-chip oscillator, delivering 31 DMIPS performance. Its active power efficiency is 62.5 µA per MHz, and it achieves 0.64 µA in RTC+LVD standby mode - critical for battery-powered LCD applications where runtime and wake latency must be balanced.
Does the R5F10RG8AFB#10 support external crystal oscillators, and what are the supported frequencies?
Yes, the R5F10RG8AFB#10 supports external crystals on X1/X2 pins for main system clock (1–20 MHz) and XT1/XT2 pins for subsystem clock (32.768 kHz). The high-speed on-chip oscillator provides ±1% accuracy at 24 MHz across voltage and temperature, eliminating crystal cost and board space when precision timing is not required.
How many LCD segments and commons can the R5F10RG8AFB#10 drive, and what drive methods are supported?
The R5F10RG8AFB#10 supports up to 35 segments × 8 commons or 39 segments × 4 commons. It implements three LCD drive methods: capacitor split, internal voltage boost (0.63 µA at VDD = 3.0 V), and external resistance division - enabling flexible display design without external bias circuitry.
What safety certifications or hardware features does the R5F10RG8AFB#10 include for functional safety compliance?
The R5F10RG8AFB#10 includes hardware-level safety features aligned with IEC/UL 60730: flash memory CRC calculation, RAM parity error check, SFR write protection, illegal memory access detection, clock frequency monitoring, and ADC self-test - enabling Class B compliance without software overhead.
Is the R5F10RG8AFB#10 pin-compatible with other RL78/L12 variants, and what package options share the same footprint?
Yes, the R5F10RG8AFB#10 uses the 48-pin LFQFP (7×7 mm, 0.5 mm pitch) package and is pin-compatible with all R5F10RGx variants (e.g., R5F10RGAAFB#10, R5F10RGCAFB#10) in the same package - allowing seamless migration between 8 KB, 16 KB, and 32 KB flash versions without PCB changes.
R5F10RG8AFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/L12
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 26
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RG8AFB#10 FAQ
1.How can I place an order for R5F10RG8AFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RG8AFB#10 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 R5F10RG8AFB#10 reliable?
The price and inventory of R5F10RG8AFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RG8AFB#10 is usually 5 days.
3.What payment methods are accepted for R5F10RG8AFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RG8AFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RG8AFB#10?
R5F10RG8AFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RG8AFB#10 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 R5F10RG8AFB#10?
For technical support, including R5F10RG8AFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RG8AFB#10 requirements.
6.How does Aetrix verify that R5F10RG8AFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F10RG8AFB#10 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 R5F10RG8AFB#10 meets industry standards.
7.What is the process for return or replacement of R5F10RG8AFB#10?
All R5F10RG8AFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RG8AFB#10, 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 R5F10RG8AFB#10 part is unused and in its original packaging.
Return procedure for R5F10RG8AFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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