Renesas R5F10RJCGFA#30
- Part No.:
- R5F10RJCGFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F10RJCGFA#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10RJCGFA#30 from Renesas is a 52-pin LQFP-packaged 16-bit RL78/L12 microcontroller with integrated LCD controller/driver, 32 KB flash, 2 KB data flash, and 1.5 KB RAM. It operates from 1.6 V to 5.5 V, delivers 31 DMIPS at 24 MHz, and achieves ultra-low power consumption (62.5 µA/MHz active, 0.64 µA in RTC+LVD halt mode), targeting battery-powered LCD display systems such as smart meters and portable medical devices.
For engineers reviewing the R5F10RJCGFA#30 datasheet, R5F10RJCGFA#30 pinout, R5F10RJCGFA#30 application, or R5F10RJCGFA#30 equivalent, key selection criteria include its 52-pin LQFP-0.65 mm pitch package, 35-segment × 8-common LCD drive capability, on-chip 24 MHz ±1% oscillator, 10-channel 10-bit ADC with 1.6 V operation support, and IEC/UL 60730 safety features including flash CRC and RAM parity.
Technical Context
The R5F10RJCGFA#30 implements the RL78 16-bit CISC Harvard architecture with 3-stage pipeline, enabling 86% of instructions in 1–2 clock cycles. Its CPU core supports signed/unsigned 16×16→32-bit multiply and MAC operations in 1 and 2 cycles respectively, plus 16-bit barrel shift in one cycle.
It integrates a dedicated LCD controller supporting capacitor split, internal voltage boost, and resistance division methods across up to 35 seg × 8 com or 39 seg × 4 com configurations, with programmable contrast (16 steps), blinking, and waveform A/B selection - all managed without CPU intervention via dedicated RAM space.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; executes 86% of instructions in 1–2 cycles |
| Max Frequency | 24 MHz (on-chip oscillator ±1% over −20°C to +85°C and 1.8–5.5 V) |
| Flash / Data Flash / RAM | 32 KB code flash, 2 KB data flash (1M erase cycles), 1.5 KB RAM with backup retention |
| Power Consumption | 62.5 µA/MHz active; 0.64 µA in Halt mode (RTC + LVD enabled); 0.23 µA Stop (RAM retained) |
| LCD Drive | Up to 35 seg × 8 com or 39 seg × 4 com; supports capacitor split, internal boost, and resistor division |
| Analog Peripherals | 10-channel 10-bit ADC (2.1 µs conversion, 1.6 V min supply), on-chip temp sensor, AVREFP/AVREFM inputs |
| Safety Features | Flash CRC calculation, RAM parity error check, SFR write protection, illegal memory access detection |
Pinout & Package
Package: 52-pin plastic LQFP (10 × 10 mm, 0.65 mm pitch). Pin functions are defined per Renesas R01DS0157EJ0223 Rev.2.23, Section 1.3.4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00 / TI07 / TO07 / SEG28 | CSI00 serial clock input/output; timer I/O; LCD segment 28 output |
| P11 | SI00 / RxD0 / TOOLRxD / KR1 / SEG29 | CSI00 serial data input; UART0 receive; debug interface RX; key return 1; LCD segment 29 |
| P12 | SO00 / TxD0 / TOOLTxD / KR0 / SEG30 | CSI00 serial data output; UART0 transmit; debug interface TX; key return 0; LCD segment 30 |
| P140 | TO00 / PCLBUZ0 / KR3 / SEG27 | Timer array output; programmable clock/buzzer output; key return 3; LCD segment 27 |
| P30 | TI01 / TO01 / KR3 / SEG19 | Timer input/output; key return 3 (shared); LCD segment 19 output |
| P126 / P127 | CAPL / CAPH | Capacitor terminals for LCD internal voltage boost circuit |
| VL1–VL4 | LCD Power Supply | Four independent LCD bias voltage outputs for contrast control and waveform shaping |
| COM0–COM3 | LCD Common Outputs | Four common electrode drivers supporting multiplexed LCD drive up to 8-com configuration |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Operation | 0.64 µA Halt mode (RTC + LVD) enables decade-long battery life in metering applications |
| Integrated LCD Controller | Dedicated RAM buffer and hardware scan logic eliminate CPU overhead for 35×8 LCD updates |
| On-Chip 24 MHz Oscillator | ±1% accuracy over full voltage (1.8–5.5 V) and temperature (−20°C to +85°C) range eliminates external crystal cost |
| Functional Safety Support | Hardware CRC engine, RAM parity, and SFR write protection meet IEC/UL 60730 Class B requirements |
| Flexible Analog Interface | 10-bit ADC operates down to 1.6 V supply with internal 1.45 V reference and on-chip temperature sensor |
Applications
| Smart Energy Meter | Portable Medical Display |
|---|---|
|
Use Scenario: Battery-powered electricity/water/gas meter with segmented LCD showing consumption, tariff, and status. IC Role / Device Role / Timing Role: Primary system controller managing metrology interface, real-time clock, LCD refresh, and secure data logging. Use Value: Ultra-low 0.64 µA Halt current extends 10-year battery life; integrated LCD driver reduces BOM by eliminating external segment drivers. |
Use Scenario: Handheld blood glucose monitor or pulse oximeter with monochrome LCD and tactile keypad. IC Role / Device Role / Timing Role: Central MCU handling analog sensor acquisition, button scanning (KR0–KR3), LCD rendering, and low-power sleep/wake cycles. Use Value: On-chip 10-bit ADC with 1.6 V operation enables direct connection to low-voltage sensors; key return inputs simplify mechanical keypad design. |
| Industrial Control Panel | Home Appliance UI |
|
Use Scenario: DIN-rail mounted HVAC or pump controller with 4-digit LCD readout and function keys. IC Role / Device Role / Timing Role: Real-time system controller executing PID loops, driving LCD segments, monitoring fault inputs, and managing communication (UART/I²C). Use Value: 31 DMIPS performance handles multitasking; 35×8 LCD support drives complex displays without external controllers. |
Use Scenario: Microwave oven or washing machine control panel with segmented LCD, buzzer feedback, and rotary encoder interface. IC Role / Device Role / Timing Role: User interface processor managing LCD, buzzer (PCLBUZ0/PCLBUZ1), key returns (KR0–KR3), and appliance state machine. Use Value: Integrated buzzer output eliminates external driver; programmable contrast (16-step) ensures readability under varying ambient light. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RJAGFA#30 | Same 52-pin LQFP package, identical peripherals, but 16 KB flash and 1 KB RAM instead of 32 KB/1.5 KB | Suitable for cost-sensitive designs with smaller firmware footprint and reduced data logging needs | Select when application code size < 16 KB and RAM usage < 1 KB; retains same pinout and LCD capabilities |
| R5F10RLCGFA#30 | 64-pin LQFP variant with 32 KB flash, 2 KB data flash, 1.5 KB RAM, and extended I/O (58 total pins, 39 CMOS I/O) | Required for designs needing >48 I/O, additional timers, or higher-resolution LCD (39 seg × 4 com) | Choose when expanding I/O count or adding UART/I²C peripherals beyond R5F10RJCGFA#30's 52-pin limits |
Compared with R5F10RJCGFA#30, R5F10RJAGFA#30 reduces memory capacity while maintaining identical packaging and LCD functionality for simpler applications, whereas R5F10RLCGFA#30 scales I/O and peripheral count in a larger 64-pin footprint - both retain the same RL78/L12 core, safety features, and ultra-low-power architecture.
Availability
R5F10RJCGFA#30 is available at Aetrix Electronics and suitable for smart energy meters, portable medical devices, industrial control panels, and home appliance user interfaces requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for R5F10RJCGFA#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/L12 product line targets ultra-low-power LCD-based applications, integrating high-efficiency CPU, on-chip LCD controller, and functional safety features for battery-operated instrumentation and consumer displays.
FAQ
What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F10RJCGFA#30?
The R5F10RJCGFA#30 features a high-speed on-chip oscillator rated at 24 MHz with ±1% accuracy across the full operating voltage range (1.8 V to 5.5 V) and temperature range (−20°C to +85°C), eliminating the need for an external crystal in most timing-critical LCD applications.
Does R5F10RJCGFA#30 support LCD drive with internal voltage boosting?
Yes, R5F10RJCGFA#30 supports LCD operation using the internal voltage boost method, requiring only external capacitors on CAPL and CAPH pins. It also supports capacitor split and resistance division methods, providing flexibility for different LCD panel types and power constraints.
What safety certifications or features does R5F10RJCGFA#30 include for industrial use?
R5F10RJCGFA#30 includes hardware-level safety features required for IEC/UL 60730 Class B compliance: flash memory CRC calculation, RAM parity error detection, SFR write protection, illegal memory access detection, and clock frequency monitoring - all implemented in silicon without software overhead.
How much SRAM is available on R5F10RJCGFA#30, and is it retained in low-power modes?
R5F10RJCGFA#30 provides 1.5 KB of on-chip RAM with full backup retention in all low-power modes including Stop (0.23 µA) and Halt (0.64 µA), ensuring critical variables and real-time clock data remain intact during extended battery operation.
What communication interfaces are integrated into R5F10RJCGFA#30?
R5F10RJCGFA#30 integrates UART0 (7-/8-/9-bit), two CSI channels (Simplified SPI, 7-/8-bit), I²C-compatible IICA0 (multi-master), and LIN bus support - enabling robust connectivity to sensors, displays, and host controllers in resource-constrained embedded systems.
R5F10RJCGFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-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:
- 37
- 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:
R5F10RJCGFA#30 FAQ
1.How can I place an order for R5F10RJCGFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RJCGFA#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 R5F10RJCGFA#30 reliable?
The price and inventory of R5F10RJCGFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RJCGFA#30 is usually 5 days.
3.What payment methods are accepted for R5F10RJCGFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RJCGFA#30 transactions.
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R5F10RJCGFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RJCGFA#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 R5F10RJCGFA#30?
For technical support, including R5F10RJCGFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RJCGFA#30 requirements.
6.How does Aetrix verify that R5F10RJCGFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F10RJCGFA#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 R5F10RJCGFA#30 meets industry standards.
7.What is the process for return or replacement of R5F10RJCGFA#30?
All R5F10RJCGFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RJCGFA#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 R5F10RJCGFA#30 part is unused and in its original packaging.
Return procedure for R5F10RJCGFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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