Renesas R5F10RB8GFP#V0
- Part No.:
- R5F10RB8GFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F10RB8GFP#V0.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 32LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,740
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Product details
Overview
R5F10RB8GFP#V0 from Renesas is an 8 KB flash, 1 KB RAM, 32-pin LQFP (7 × 7 mm, 0.8 mm pitch) RL78/L12 microcontroller optimized for ultra-low-power LCD-based applications. It delivers 31 DMIPS at 24 MHz, operates from 1.6 V to 5.5 V, consumes just 62.5 µA/MHz active and 0.64 µA in RTC+LVD halt mode, and integrates a full-featured LCD controller supporting up to 35 seg × 8 com.
For engineers reviewing the R5F10RB8GFP#V0 datasheet, R5F10RB8GFP#V0 pinout, R5F10RB8GFP#V0 application, or R5F10RB8GFP#V0 equivalent, key selection criteria include its industrial-grade −40°C to +105°C operation, on-chip LCD driver with capacitor-split and internal-boost methods, 10-bit ADC with 1.6 V support, and integrated safety features compliant with IEC/UL 60730.
Technical Context
The R5F10RB8GFP#V0 implements the 16-bit RL78 CPU core with Harvard architecture and 3-stage pipeline, enabling 86% of instructions in 1–2 clock cycles. Its low-power design includes multiple sleep modes (Stop at 0.23 µA, Halt at 0.64 µA), snooze functionality, and dual-clock system with 24 MHz ±1% on-chip oscillator and 32.768 kHz subsystem clock.
It integrates dedicated hardware peripherals including an 8-channel timer array unit, real-time clock with calendar/alarm, 2-channel DMA, I²C, UART, simplified SPI (CSI), LIN, and a 10-channel 10-bit ADC with internal 1.45 V reference and on-chip temperature sensor - all accessible via 28 total I/O pins including 8 LCD-dedicated outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU with 3-stage pipeline, 31 DMIPS @ 24 MHz |
| Flash / RAM | 8 KB code flash + 2 KB data flash + 1 KB RAM (630 B usable with self-programming) |
| Power Consumption | 62.5 µA/MHz active; 0.64 µA in RTC+LVD halt mode; 0.23 µA stop mode (RAM retained) |
| LCD Support | Up to 35 seg × 8 com; supports capacitor-split, internal-boost, and resistance-division drive methods |
| ADC | 10-bit resolution, 10 channels, 2.1 µs conversion time, operational down to 1.6 V supply |
| Operating Temp | −40°C to +105°C (industrial grade, G-suffix) |
| Package | 32-pin LQFP, 7 mm × 7 mm, 0.8 mm pitch, RoHS-compliant |
Pinout & Package
32-pin plastic LQFP (7 × 7 mm, 0.8 mm pitch), with REGC pin requiring 0.47–1 µF capacitor to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary analog channel 0 input and selectable AVREFP source |
| P21/ANI1/AVREFM | Analog input / ADC reference negative | Primary analog channel 1 input and selectable AVREFM source |
| P12–P17, P10, P11 | Port 1 I/O with peripheral multiplexing | Support UART0 (TxD0/RxD0), CSI00/01, and key return (KR0–KR2) |
| P30–P32 | Port 3 with timer I/O | TI01/TO01 (P30), RTC1HZ output (P31), TI03/TO03 (P32) |
| P140/TO00/PCLBUZ0/KR3 | Multiplexed timer output / buzzer / key return | Drives LCD segment 27, provides programmable clock/buzzer, and serves as KR3 input |
| COM0–COM3, SEG0, SEG4–SEG6, SEG19–SEG21, SEG27–SEG32 | LCD segment/common outputs | Direct drive capability for up to 35 segments and 4 commons in 32-pin configuration |
| VDD / VSS / REGC | Power supply and regulator decoupling | Single 1.6–5.5 V supply; REGC requires external 0.47–1 µF capacitor to VSS |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.64 µA RTC+LVD halt mode enables multi-year battery life in metering and portable displays |
| Integrated LCD controller/driver | Eliminates external LCD driver IC; supports 35×8 segment layout with contrast adjustment and blinking |
| IEC/UL 60730 safety compliance | Includes flash CRC, RAM parity, SFR write protection, illegal access detection, and clock monitoring |
| On-chip debug interface | 1-wire on-chip debug (via TOOL0/P40) enables in-system programming and real-time debugging without JTAG header |
| Flexible clock system | 24 MHz ±1% on-chip oscillator (1.8–5.5 V, −20°C to 85°C) plus external crystal options for precision timing |
Applications
| Smart Utility Meter | Industrial Panel Display |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD readout and tamper detection. IC Role / Device Role / Timing Role: Main system controller managing metrology interface, LCD refresh, RTC calendar, and low-power wake-up events. Use Value: 0.64 µA RTC+LVD halt mode extends battery life beyond 10 years; integrated LCD driver reduces BOM count by one IC. | Use Scenario: DIN-rail mounted HMI display in factory automation with environmental monitoring and alarm indicators. IC Role / Device Role / Timing Role: Standalone display controller handling sensor inputs (ADC), local UI updates, and serial communication to PLC. Use Value: −40°C to +105°C rating ensures reliability in uncontrolled enclosures; 10-bit ADC directly reads thermistor and voltage rails. |
| Portable Medical Device | Home Appliance Control Panel |
Use Scenario: Handheld blood glucose monitor or pulse oximeter with LCD, button interface, and battery management. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, LCD rendering, keypad scanning (KR0–KR3), and power sequencing. Use Value: Snooze mode enables fast wake-up from deep sleep for button press response; on-chip temperature sensor calibrates ADC readings. | Use Scenario: Microwave oven or washing machine control panel with segmented LCD, touch keys, and motor control signals. IC Role / Device Role / Timing Role: Primary UI controller driving LCD segments, scanning key returns, generating buzzer tones (PCLBUZ0), and interfacing with main MCU via UART/I²C. Use Value: Integrated buzzer output eliminates external driver; KR inputs simplify mechanical key matrix design with minimal GPIO usage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RF8GFP#V0 | 44-pin LQFP, 16 KB flash, 1 KB RAM, adds 12 more I/O pins and 4 additional LCD commons (COM4–COM7) | Required for larger LCDs (>35 seg) or designs needing extra GPIO for sensors/relays | Select when expanding display size or I/O count beyond 32-pin limits while retaining same core/peripherals |
| R5F10RG8GFB#V0 | 48-pin LFQFP, 8 KB flash, 1 KB RAM, same memory but 0.5 mm pitch package and added ANI16/ANI17 inputs | Suitable for space-constrained PCBs where 7×7 mm footprint is mandatory but more analog channels are needed | Choose for compact industrial designs requiring additional analog sensing without increasing pin count or flash size |
Compared with R5F10RB8GFP#V0, the R5F10RF8GFP#V0 offers higher I/O density and extended LCD capability for larger displays, while the R5F10RG8GFB#V0 maintains identical memory and power specs in a finer-pitch package with enhanced analog input count - both retain full software compatibility within the RL78/L12 family.
Availability
R5F10RB8GFP#V0 is available at Aetrix Electronics and suitable for smart utility meters, industrial HMIs, and portable medical devices requiring stable component supply, long-term lifecycle support, and industrial temperature range assurance.
Supply support for R5F10RB8GFP#V0 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/L12 product line targets ultra-low-power LCD-based applications such as energy meters, home appliances, and portable instrumentation - emphasizing integration, safety certification, and extended battery life.
FAQ
What is the maximum operating frequency and performance of the R5F10RB8GFP#V0?
The R5F10RB8GFP#V0 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, and minimum instruction time is 0.04167 µs at 24 MHz - confirmed in the R01DS0157EJ0223 datasheet Rev.2.23.
Does the R5F10RB8GFP#V0 support industrial temperature range and safety standards?
Yes, the R5F10RB8GFP#V0 is rated for −40°C to +105°C operation (G-suffix) and includes built-in safety features required for IEC/UL 60730 compliance: flash memory CRC calculation, RAM parity error check, SFR write protection, illegal memory access detection, clock frequency detection, and ADC self-test - all documented in Section 1.1 of the datasheet.
How many LCD segments and commons does the R5F10RB8GFP#V0 support?
The R5F10RB8GFP#V0 supports up to 35 segments and 4 commons (35 seg × 8 com or 39 seg × 4 com configurations) using its integrated LCD controller/driver. It supports capacitor-split, internal voltage boost, and resistance-division drive methods, with 16-step contrast adjustment and blinking control - specified in Section 1.1 "LCD Controller/Driver" of the datasheet.
What are the power supply requirements and low-power modes of the R5F10RB8GFP#V0?
The R5F10RB8GFP#V0 operates from a single 1.6 V to 5.5 V supply. It offers multiple low-power states: Stop mode (0.23 µA, RAM retained), Halt mode (0.64 µA with RTC + LVD active), and active mode at 62.5 µA/MHz. The REGC pin requires a 0.47–1 µF capacitor to VSS - details are in Section 1.1 "Ultra-Low Power Technology" and Figure 1-1 pinout diagram.
Which communication interfaces are integrated into the R5F10RB8GFP#V0?
The R5F10RB8GFP#V0 integrates UART0 (7-/8-/9-bit), two simplified SPI channels (CSI00/CSI01), I²C (IICA0), and LIN bus interface. All are accessible via Port 1 pins with flexible peripheral I/O redirection - confirmed in Sections 1.1 "Multiple Communication Interfaces" and 1.5.1 block diagram for 32-pin products in the datasheet.
R5F10RB8GFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- RL78/L12
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
- 20
- 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 4x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RB8GFP#V0 FAQ
1.How can I place an order for R5F10RB8GFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RB8GFP#V0 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 R5F10RB8GFP#V0 reliable?
The price and inventory of R5F10RB8GFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RB8GFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F10RB8GFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RB8GFP#V0 transactions.
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4.How is shipping managed for R5F10RB8GFP#V0?
R5F10RB8GFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RB8GFP#V0 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 R5F10RB8GFP#V0?
For technical support, including R5F10RB8GFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RB8GFP#V0 requirements.
6.How does Aetrix verify that R5F10RB8GFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F10RB8GFP#V0 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 R5F10RB8GFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F10RB8GFP#V0?
All R5F10RB8GFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RB8GFP#V0, 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 R5F10RB8GFP#V0 part is unused and in its original packaging.
Return procedure for R5F10RB8GFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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