Renesas R5F10RBCGFP#X0
- Part No.:
- R5F10RBCGFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F10RBCGFP#X0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 32LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,270
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Product details
Overview
R5F10RBCGFP#X0 from Renesas is a 32-pin LQFP-packaged 16-bit RL78/L12 microcontroller with 32 KB flash, 2 KB data flash, 1.5 KB RAM, integrated LCD controller/driver (up to 35 seg × 8 com), and ultra-low-power operation (0.64 µA in RTC+LVD mode). It targets battery-powered LCD-based industrial instrumentation, smart meters, and portable medical devices requiring extended runtime and on-chip display driving.
For engineers reviewing the R5F10RBCGFP#X0 datasheet, R5F10RBCGFP#X0 pinout, R5F10RBCGFP#X0 application, or R5F10RBCGFP#X0 equivalent, key selection criteria include its 32-pin LQFP-0.8 mm pitch package, 32 KB code flash with self-programming, 10-bit ADC with internal reference, 24 MHz high-speed on-chip oscillator (±1% accuracy), and support for capacitor-split LCD drive at 0.12 µA segment current.
Technical Context
The R5F10RBCGFP#X0 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and CISC instruction set delivering 31 DMIPS at 24 MHz. Its low-power design includes multiple sleep modes-Stop (0.23 µA RAM-retained), Halt (0.64 µA with RTC + LVD), and Snooze-with dynamic voltage regulation via REGC pin and dedicated VLx power rails for LCD bias.
It integrates a full-featured LCD controller supporting waveform types A/B, 16-step contrast adjustment, blinking control, and three drive methods (capacitor split, internal boost, resistance division). The peripheral set includes UART, two CSI/SPI channels, I²C, 8-channel timer array, RTC with calendar/alarm, and 10-channel 10-bit ADC operating down to 1.6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU, 31 DMIPS @ 24 MHz, 86% instructions execute in 1–2 cycles |
| Memory | 32 KB code flash (1 KB block erase), 2 KB data flash (1M erase cycles), 1.5 KB RAM with backup retention |
| Power Consumption | 0.64 µA in Halt mode (RTC + LVD active); 62.5 µA/MHz active; 0.12 µA LCD segment current (capacitor split) |
| LCD Support | Up to 35 segments × 8 commons; supports capacitor split, internal boost (0.63 µA @ 3.0 V), and resistance division methods |
| Analog | 10-bit ADC with 10 channels, 2.1 µs conversion time, internal 1.45 V reference, operates down to 1.6 V supply |
| Oscillator | 24 MHz high-speed on-chip oscillator (±1% over −20°C to +85°C, 1.8–5.5 V); also supports external crystal (X1/X2) and subsystem clock (XT1/XT2) |
| Operating Range | −40°C to +105°C (industrial grade G suffix), 1.6 V to 5.5 V single-supply operation |
Pinout & Package
Package: 32-pin plastic LQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, industrial temperature grade (−40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary analog channel 0 input; selectable as AVREFP for precise 10-bit ADC measurements |
| P21/ANI1/AVREFM | Analog input / ADC reference negative | Analog channel 1 input; configurable as AVREFM to enable differential ADC mode |
| P12–P14, P17, P30–P32, P60–P61, P140–P141 | LCD segment/com output & communication I/O | Shared pins for SEG/COM drive and serial interfaces (UART, CSI, I²C) - multiplexed via PIOR register |
| VL1–VL4, CAPL, CAPH | LCD bias voltage generation | Dedicated pins for external capacitor connection (CAPL/CAPH) and segmented LCD voltage rails (VL1–VL4) |
| REGC | Voltage regulator decoupling | Must be connected to VSS via 0.47–1 µF capacitor to stabilize internal 1.8 V regulator for LCD and core logic |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; accepts external reset signal or POR/LVD assertion |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power LCD operation | 0.12 µA per segment using capacitor-split method enables multi-year battery life in portable displays |
| Integrated RTC with calendar | Full BCD calendar (year/month/day/hour/min/sec), alarm, and watch correction function - no external RTC IC required |
| Self-programmable flash | On-the-fly reprogramming of code/data flash with flash shield window protection prevents accidental overwrite |
| IEC/UL 60730 safety compliance | Includes CRC calculation, RAM parity check, SFR write protection, illegal access detection, and clock frequency monitor |
| Flexible LCD drive configuration | Runtime-selectable drive method (capacitor split/internal boost/resistance division) and waveform type (A/B) adapts to panel requirements |
Applications
| Smart Energy Meter | Industrial Panel Display |
|---|---|
|
Use Scenario: Battery-backed utility meter with segmented LCD showing kWh, tariff, and status indicators. IC Role / Device Role / Timing Role: Primary system controller executing metering firmware, managing real-time billing intervals, and directly driving 32-segment LCD without external driver. Use Value: Eliminates external LCD driver and RTC, reduces BOM count by ≥3 components, and extends battery life beyond 10 years via 0.64 µA Halt-mode operation. |
Use Scenario: DIN-rail mounted HMI displaying process variables (temperature, pressure, flow) with local button interface. IC Role / Device Role / Timing Role: Central MCU handling sensor ADC reads, keypad scanning (KR0–KR3), LCD refresh, and UART communication to PLC backend. Use Value: Integrated key return (KR) inputs and 35×8 LCD support enable direct matrix keypad and large display control - no GPIO expander needed. |
| Portable Medical Monitor | Home Appliance Control |
|
Use Scenario: Handheld pulse oximeter with OLED-compatible segmented display, battery gauge, and user alerts. IC Role / Device Role / Timing Role: System-on-chip managing optical sensor interface, low-voltage ADC, buzzer output (PCLBUZ0), and LCD contrast/brightness control. Use Value: On-chip temperature sensor and 1.6 V ADC operation allow accurate battery monitoring and sensor compensation across wide temperature range (−40°C to +105°C). |
Use Scenario: Microwave oven control panel with 4-digit time display, cooking mode indicators, and touch-sensitive keys. IC Role / Device Role / Timing Role: Dedicated appliance MCU performing real-time cooking timer, key scan, LCD segment update, and safety interlock monitoring. Use Value: Built-in window watchdog timer and RAM parity ensure fail-safe operation; 5V-tolerant I/O simplifies connection to legacy keypad and display circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RFCGFP#X0 | Same 44-pin LQFP package, identical peripherals, but 16 KB flash and 1 KB RAM | Suitable for cost-sensitive designs with reduced firmware footprint and lower RAM needs | Select when application firmware fits within 16 KB and does not require background data flash operations |
| R5F10RGCJFA#X0 | 52-pin LQFP (0.65 mm pitch), 32 KB flash, 1.5 KB RAM, adds 4 extra ADC channels and 2 more I/O pins | Better suited for systems requiring expanded analog sensing or additional control outputs | Choose when needing >10 ADC inputs or >28 GPIOs while retaining same core architecture and toolchain compatibility |
Compared with R5F10RBCGFP#X0, R5F10RFCGFP#X0 reduces memory capacity but maintains identical low-power LCD features and pin-compatible layout in larger 44-pin package; R5F10RGCJFA#X0 increases I/O and analog resources in a physically larger 52-pin footprint - both retain RL78/L12 instruction set and development ecosystem compatibility.
Availability
R5F10RBCGFP#X0 is available at Aetrix Electronics and suitable for industrial instrumentation, smart metering, and portable medical device designs requiring stable component supply, long-term lifecycle assurance, and industrial-grade temperature performance.
Supply support for R5F10RBCGFP#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 applications - integrating display drivers, precision analog, and ultra-low standby current to eliminate external components in cost- and space-constrained designs.
FAQ
What is the maximum operating frequency and core performance of the R5F10RBCGFP#X0?
The R5F10RBCGFP#X0 operates at up to 24 MHz using its high-speed on-chip oscillator and delivers 31 DMIPS of processing performance. Its 16-bit RL78 CPU core executes 86% of instructions in just one or two clock cycles, enabling responsive real-time control in LCD-driven applications while maintaining ultra-low power consumption.
Does the R5F10RBCGFP#X0 support external crystal oscillators?
Yes, the R5F10RBCGFP#X0 supports external crystal oscillators on pins X1/P121 and X2/P122 for main system clock, and XT1/P123 and XT2/P124 for subsystem clock (e.g., 32.768 kHz RTC crystal). These provide higher timing accuracy than the on-chip oscillator when required for communication or precision timing applications.
How many LCD segments and commons can the R5F10RBCGFP#X0 drive?
The R5F10RBCGFP#X0 supports up to 35 segment outputs and 8 common outputs (35 × 8 configuration), or alternatively 39 segments and 4 commons (39 × 4), depending on software configuration. This is implemented entirely in hardware via its integrated LCD controller/driver, eliminating need for external display drivers.
What low-power modes are available on the R5F10RBCGFP#X0?
The R5F10RBCGFP#X0 offers Stop mode (0.23 µA with RAM retained), Halt mode (0.64 µA with RTC and LVD active), and Snooze mode (selective peripheral wake-up). All modes preserve RAM contents and support fast wake-up (< 4 µs from Stop), making it ideal for battery-powered LCD applications requiring multi-year operation.
Is the R5F10RBCGFP#X0 pin-compatible with other RL78/L12 variants?
No - the R5F10RBCGFP#X0 is a 32-pin LQFP device and is not pin-compatible with 44-, 48-, 52-, or 64-pin RL78/L12 variants. While all share the same RL78/L12 architecture and peripheral set, pin count, package dimensions, and I/O mapping differ across the family; PCB layout must be designed specifically for the 32-pin footprint.
R5F10RBCGFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- RL78/L12
- Packaging:
- Tape & Reel (TR)
- 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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1.5K 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:
R5F10RBCGFP#X0 FAQ
1.How can I place an order for R5F10RBCGFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RBCGFP#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 R5F10RBCGFP#X0 reliable?
The price and inventory of R5F10RBCGFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RBCGFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F10RBCGFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RBCGFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RBCGFP#X0?
R5F10RBCGFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RBCGFP#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 R5F10RBCGFP#X0?
For technical support, including R5F10RBCGFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RBCGFP#X0 requirements.
6.How does Aetrix verify that R5F10RBCGFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F10RBCGFP#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 R5F10RBCGFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F10RBCGFP#X0?
All R5F10RBCGFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RBCGFP#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 R5F10RBCGFP#X0 part is unused and in its original packaging.
Return procedure for R5F10RBCGFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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