Renesas R5F10RLCGFB#30
- Part No.:
- R5F10RLCGFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10RLCGFB#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10RLCGFB#30 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), 32 KB flash, 2 KB data flash, 1.5 KB RAM RL78/L12 16-bit microcontroller with integrated LCD controller/driver supporting up to 35 seg × 8 com, 31 DMIPS at 24 MHz, and ultra-low-power operation (0.64 µA in RTC+LVD halt mode). It targets battery-powered LCD display systems such as smart meters and portable medical devices.
For engineers reviewing the R5F10RLCGFB#30 datasheet, R5F10RLCGFB#30 pinout, R5F10RLCGFB#30 application, or R5F10RLCGFB#30 equivalent, key selection criteria include its on-chip LCD drive capability (capacitor split/internal boost), 10-bit ADC with 1.6 V support, I²C/SPI/UART interfaces, and industrial-grade −40°C to +105°C operation with LVD and CRC safety features.
Technical Context
The R5F10RLCGFB#30 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and 86% of instructions executed in 1–2 clock cycles. It integrates dual power domains (VDD/EVDD, VSS/EVSS) for noise-sensitive LCD applications and supports peripheral I/O redirection via PIOR register for flexible pin assignment.
Its LCD controller supports three drive methods (capacitor split, internal voltage boost, resistance division), 16-step contrast control, blinking, and waveform A/B selection. The real-time clock includes full calendar, alarm, and watch correction functions, operating independently in low-power halt mode with only RTC and LVD enabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU delivering 31 DMIPS at 24 MHz; enables efficient firmware execution in resource-constrained LCD systems. |
| Memory | 32 KB code flash (1 KB block erase), 2 KB data flash (1M erase cycles), 1.5 KB RAM with backup retention in all low-power modes. |
| Power Modes | Halt (RTC + LVD): 0.64 µA; Operating: 62.5 µA/MHz; LCD current: 0.12 µA (capacitor split) or 0.63 µA (internal boost @ 3.0 V). |
| LCD Drive | Supports up to 35 segments × 8 commons; configurable drive method, 16-step contrast, blinking, and waveform A/B timing control. |
| Analog | 10-bit ADC with 10 channels, 2.1 µs conversion time, 1.6 V minimum supply, internal 1.45 V reference, and on-chip temperature sensor. |
| Safety | IEC/UL 60730-compliant features: flash CRC, RAM parity check, SFR write protection, illegal memory access detection, clock frequency monitor. |
| Operating Range | −40°C to +105°C (industrial grade G), 1.6 V to 5.5 V single-supply operation with 14-level LVD interrupt/reset options. |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, industrial temperature grade (G).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00 | SPI Clock Input/Output | Primary CSI00 serial clock; supports 7-/8-bit simplified SPI communication with programmable polarity/phase. |
| P11/SI00/RxD0 | SPI Data In / UART RX | Shared input for CSI00 and UART0; enables dual-protocol use on same pin with software configuration. |
| P12/SO00/TxD0 | SPI Data Out / UART TX | Shared output for CSI00 and UART0; simplifies PCB routing for mixed interface requirements. |
| P60/SCLA0 | I²C Clock Line | Open-drain I²C bus clock input/output; supports multi-master operation up to 400 kHz standard-mode speed. |
| P61/SDAA0 | I²C Data Line | Open-drain I²C bus data input/output; compatible with SMBus and standard I²C peripherals. |
| P31/INTP3/RTC1HZ | Interrupt / RTC Output | Dedicated 1 Hz square-wave output from RTC module; usable for system wake-up or timekeeping without CPU intervention. |
| P121/X1 | Main Crystal Oscillator Input | Connects to external crystal (1–20 MHz); enables precise timing for real-time applications and high-speed CPU operation. |
| P122/X2/EXCLK | Main Crystal Oscillator Output / External Clock Input | Drives crystal load or accepts external clock source; allows bypassing crystal for deterministic clock sourcing. |
| VDD / EVDD | Core & I/O Power Supply | Dual VDD/EVDD pins enable separate analog/digital power domains to reduce LCD noise coupling and improve display stability. |
| VSS / EVSS | Core & I/O Ground | Dual ground pins support independent grounding paths for digital logic and LCD driver circuits to minimize interference. |
| REGC | Regulator Capacitor Terminal | Must be connected to VSS via 0.47–1 µF capacitor; stabilizes internal voltage regulator for consistent low-power operation. |
| COM0–COM7 | LCD Common Outputs | Eight dedicated common-line drivers supporting multiplexed LCD displays up to 8-com configuration. |
| SEG0–SEG38 | LCD Segment Outputs | 39 segment outputs enable large-character or graphical LCDs (e.g., 35×8 or 39×4 configurations). |
| VL1–VL4 | LCD Bias Voltage Supplies | Four independent LCD bias rails allow fine-tuning of contrast and drive strength across different display types. |
| P126/CAPL, P127/CAPH | LCD Capacitor Terminals | Connect external capacitors for capacitor-split LCD drive method; eliminates need for external voltage booster IC. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Halt Mode | 0.64 µA with RTC + LVD active enables multi-year battery life in always-on metering or monitoring devices. |
| Integrated LCD Controller | Hardware-accelerated drive for up to 35×8 segments eliminates external LCD driver IC and reduces BOM cost. |
| On-Chip Debug Interface | Single-wire on-chip debug (TOOL0/P40) enables in-system programming and real-time debugging without JTAG header. |
| Flexible Peripheral Mapping | Peripheral I/O redirection register (PIOR) allows dynamic remapping of UART/SPI/I²C functions to alternate pins for optimal PCB layout. |
| Industrial Safety Compliance | Built-in CRC, RAM parity, and illegal access detection meet IEC/UL 60730 Class B requirements for safety-critical embedded systems. |
| Wide Voltage & Temp Range | 1.6–5.5 V operation and −40°C to +105°C rating support deployment in harsh environments like utility infrastructure or automotive cabins. |
Applications
| Smart Energy Meter | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD display, real-time tariff calculation, and tamper detection. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, driving LCD, managing secure data logging, and maintaining accurate time via RTC. Use Value: Ultra-low 0.64 µA halt current extends battery life beyond 10 years; integrated LCD driver reduces component count and board space by eliminating external driver IC. |
Use Scenario: Handheld pulse oximeter or blood glucose monitor with alphanumeric LCD, button interface, and low-power sensor readout. IC Role / Device Role / Timing Role: Central MCU handling analog sensor acquisition (ADC), key scan (KR0–KR3), buzzer feedback (PCLBUZ0/1), and LCD update. Use Value: On-chip 10-bit ADC with 1.6 V support enables direct connection to low-voltage sensors; 16-step LCD contrast adjustment ensures readability under varying ambient light. |
| Industrial Control Panel | Home Appliance Display Module |
Use Scenario: DIN-rail mounted HVAC or PLC interface with multi-line LCD, keypad input, and relay control outputs. IC Role / Device Role / Timing Role: Human-machine interface (HMI) processor managing LCD refresh, key return scanning (KR0–KR3), UART communication with main controller, and watchdog supervision. Use Value: Dual power domains (VDD/EVDD) isolate noisy digital switching from sensitive LCD bias lines, preventing display flicker during relay actuation. |
Use Scenario: Microwave oven or washing machine front panel with 4-digit LCD, touch/tactile keys, and buzzer alerts. IC Role / Device Role / Timing Role: Dedicated display and UI controller handling segment drive, key scan, buzzer tone generation (PCLBUZ0/1), and timer-based cooking cycle management. Use Value: Programmable clock output (PCLBUZ0/1) generates precise audio tones without external oscillator; internal voltage boost LCD drive eliminates need for external charge pump. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RLAGFB#30 | Same package and pinout; 16 KB flash (vs. 32 KB), identical RAM/data flash/peripherals. | Suitable for cost-sensitive designs with smaller firmware footprint and no future code expansion needs. | Select when application firmware fits within 16 KB and BOM cost reduction is prioritized over field-upgrade headroom. |
| R5F10RJCGFA#30 | 52-pin LQFP (10 × 10 mm, 0.65 mm pitch); same 32 KB flash, 2 KB data flash, but fewer I/O (48 vs. 58 total pins) and reduced LCD segment count (30 vs. 39). | Better suited for space-constrained designs where full 64-pin I/O and LCD capacity are unnecessary. | Choose when PCB area is limited and LCD complexity is ≤30 segments; retains same core performance and safety features. |
Compared with R5F10RLCGFB#30, R5F10RLAGFB#30 offers identical industrial temperature range and peripheral set at lower flash density for cost optimization, while R5F10RJCGFA#30 provides a smaller footprint and reduced pin count-ideal for compact designs where full 64-pin I/O and 39-segment LCD drive are not required.
Availability
R5F10RLCGFB#30 is available at Aetrix Electronics and suitable for smart energy metering, portable medical devices, industrial HMI panels, and home appliance display modules requiring stable component supply and long-term industrial lifecycle support.
Supply support for R5F10RLCGFB#30 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/L12 product line is designed specifically for ultra-low-power LCD-based applications, integrating high-efficiency CPU, on-chip LCD controller, and robust safety features for battery-operated and industrial display systems.
FAQ
What is the maximum LCD segment count supported by the R5F10RLCGFB#30?
The R5F10RLCGFB#30 supports up to 39 segment outputs (SEG0–SEG38) and 8 common outputs (COM0–COM7), enabling configurations such as 35 seg × 8 com or 39 seg × 4 com. This capacity is confirmed in the RL78/L12 datasheet Section 1.3.5 (64-pin pinout) and Section 1.6 (Outline of Functions), where 39 segments are explicitly listed for R5F10RLx devices.
Does the R5F10RLCGFB#30 support both internal voltage boost and capacitor split LCD drive methods?
Yes, the R5F10RLCGFB#30 supports capacitor split, internal voltage boost, and resistance division LCD drive methods. Section 1.1 Features states "Supports capacitor split method, internal voltage boost method and resistance division method", and Section 1.6 confirms switchable selection among them-enabling design flexibility for different LCD glass types and power budgets.
What is the operating temperature range and qualification grade for the R5F10RLCGFB#30?
The R5F10RLCGFB#30 is qualified for industrial applications with an operating ambient temperature range of −40°C to +105°C, indicated by the 'G' suffix in the part number per Figure 1-1. This is documented in Section 1.1 (Features) and Table 1-1, where R5F10RLCGFB corresponds to the 'G' (industrial) field-of-application column.
How much current does the R5F10RLCGFB#30 consume in RTC+LVD-only halt mode?
The R5F10RLCGFB#30 consumes 0.64 µA in halt mode with only the real-time clock and low-voltage detector active. This value is specified in Section 1.1 Features ("Halt (RTC + LVD): 0.64 µA") and applies across the full industrial temperature and voltage range (1.6 V to 5.5 V, −40°C to +105°C).
Which communication interfaces are available on the R5F10RLCGFB#30?
The R5F10RLCGFB#30 includes one I²C multi-master interface (SCLA0/SDAA0), two simplified SPI channels (CSI00/CSI01), one UART (RxD0/TxD0), and one LIN interface. These are listed in Section 1.1 Features and confirmed in the 64-pin block diagram (Section 1.5.5), where IICA0, CSI00, CSI01, and UART0 are all present.
R5F10RLCGFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/L12
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 47
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RLCGFB#30 FAQ
1.How can I place an order for R5F10RLCGFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RLCGFB#30 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 R5F10RLCGFB#30 reliable?
The price and inventory of R5F10RLCGFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RLCGFB#30 is usually 5 days.
3.What payment methods are accepted for R5F10RLCGFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RLCGFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RLCGFB#30?
R5F10RLCGFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RLCGFB#30 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 R5F10RLCGFB#30?
For technical support, including R5F10RLCGFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RLCGFB#30 requirements.
6.How does Aetrix verify that R5F10RLCGFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F10RLCGFB#30 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 R5F10RLCGFB#30 meets industry standards.
7.What is the process for return or replacement of R5F10RLCGFB#30?
All R5F10RLCGFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RLCGFB#30, 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 R5F10RLCGFB#30 part is unused and in its original packaging.
Return procedure for R5F10RLCGFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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