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Renesas R5F10RJCGFA#X0
- Part No.:
- R5F10RJCGFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F10RJCGFA#X0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,467
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Product details
Overview
R5F10RJCGFA#X0 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 applications such as smart meters and portable medical devices.
For engineers reviewing the R5F10RJCGFA#X0 datasheet, R5F10RJCGFA#X0 pinout, R5F10RJCGFA#X0 application, or R5F10RJCGFA#X0 equivalent, this page provides verified technical context, exact pin functions for LCD segment/com drivers and key peripherals (UART, I²C, ADC, timers), real-world use cases in industrial HMI and energy monitoring, and validated alternative parts with documented functional and packaging differences.
Technical Context
The R5F10RJCGFA#X0 implements the RL78 16-bit CISC Harvard architecture with 3-stage pipeline, enabling 86% of instructions in 1–2 clock cycles. Its on-chip high-speed oscillator delivers ±1% accuracy across 1.8–5.5 V and −20°C to +85°C, supporting pre-configured frequencies from 1 MHz to 24 MHz.
It integrates a full-featured LCD controller supporting up to 35 seg × 8 com or 39 seg × 4 com via capacitor split, internal boost, or resistance division methods, with 16-step contrast control and blinking support. The device includes safety features compliant with IEC/UL 60730, including flash CRC, RAM parity check, and illegal memory access detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response in low-power embedded control. |
| Max Operating Frequency | 24 MHz; delivers 31 DMIPS for responsive UI rendering and sensor processing in LCD-based systems. |
| Flash Memory | 32 KB code flash + 2 KB data flash; supports background operation and self-programming for firmware updates without halting execution. |
| RAM | 1.5 KB; retains full contents in all low-power modes including Stop (0.23 µA) and Halt (0.64 µA). |
| LCD Driver Capability | Up to 35 segments × 8 commons or 39 × 4; eliminates external driver ICs in compact displays like gas meters and thermostats. |
| ADC | 10-bit, 10-channel, 2.1 µs conversion time; supports direct sensing of analog sensors (e.g., temperature, voltage) down to 1.6 V supply. |
| Operating Voltage | 1.6 V to 5.5 V; enables single-supply operation across coin-cell, Li-ion, and industrial 3.3/5 V rails. |
| Temp Range | −40°C to +105°C (Industrial grade G); qualified for deployment in harsh environments like HVAC controllers and industrial panels. |
Pinout & Package
Package: 52-pin LQFP (10 × 10 mm, 0.65 mm pitch), RoHS-compliant, industrial-grade (G suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00 / TI07 / TO07 / KR2 / SEG28 | Primary SPI clock input; timer I/O for PWM generation; key return line; LCD segment output - multiplexed for flexible peripheral assignment. |
| P11 | SI00 / RxD0 / TOOLRxD / KR1 / SEG29 | UART receive input; debug interface RX; key scan input; LCD segment - enables shared pins for serial comms and keypad interfaces. |
| P12 | SO00 / TxD0 / TOOLTxD / KR0 / SEG30 | UART transmit output; debug interface TX; key return line; LCD segment - supports simultaneous communication and user interface driving. |
| P140 | TO00 / PCLBUZ0 / KR3 / SEG27 | Timer output for PWM buzzer drive; key return; LCD segment - integrates audible feedback and display control in one pin. |
| P30 | TI01 / TO01 / SEG19 | Timer input/output for event capture or waveform generation; LCD segment - used for timing-critical functions like backlight dimming or pulse counting. |
| P126 / P127 | CAPL / CAPH | Capacitor terminals for LCD internal voltage boost circuit; required for high-contrast segment drive without external charge pump. |
| VL1–VL4 | LCD Power Supply Outputs | Four independent LCD bias voltage outputs; enable precise voltage tuning for optimal contrast across temperature and supply variations. |
| COM0–COM7 | LCD Common Outputs | Eight common electrode drivers; support multiplexed LCD configurations up to 8-com, reducing external component count. |
| SEG0–SEG36 | LCD Segment Outputs | 37 dedicated segment drivers (including P145); directly drive up to 35×8 or 39×4 LCDs without external drivers. |
| REGC | Voltage Regulator Decoupling | Connect to VSS via 0.47–1 µF capacitor; stabilizes internal regulator for consistent LCD bias and low-noise analog operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Power Operation | 0.64 µA in Halt mode (RTC + LVD active); extends battery life in always-on metering and monitoring devices beyond 10 years. |
| Integrated LCD Controller | Supports capacitor split, internal boost, and resistance division methods; eliminates need for external LCD driver ICs and reduces BOM cost by ≥$0.35. |
| On-Chip Debug Interface | 1-wire on-chip debug (TOOL0/P40); enables in-system programming and real-time trace without JTAG header footprint or debug probe licensing. |
| Functional Safety Support | Hardware CRC engine, RAM parity, SFR write protection, and illegal access detection - simplifies IEC 60730 Class B certification effort. |
| Analog Integration | 10-bit ADC with internal 1.45 V reference and on-chip temperature sensor; enables accurate environmental sensing without external references or sensors. |
| Flexible Clock System | High-speed on-chip oscillator (±1% @ 24 MHz), subsystem crystal (32.768 kHz), and low-speed internal oscillator (15 kHz); ensures robust timing across sleep/wake cycles and RTC accuracy. |
Applications
| Smart Energy Meter | Industrial HMI Panel |
|---|---|
|
Use Scenario: Battery-powered electricity/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 32-segment LCD, logging data to data flash, and maintaining RTC calendar during power loss. Use Value: 0.64 µA Halt mode enables >15-year battery life; integrated LCD driver reduces PCB area by 25% vs discrete solutions; 32 KB flash accommodates future firmware upgrades. |
Use Scenario: DIN-rail mounted control panel for HVAC or PLC with 4-line alphanumeric LCD, keypad input, and sensor monitoring. IC Role / Device Role / Timing Role: Central UI processor managing LCD refresh, key scanning (KR0–KR3), analog sensor reads (ADC), and UART communication with host controller. Use Value: 10-channel ADC supports direct connection of temperature/humidity/pressure sensors; 52-pin LQFP provides sufficient I/O for 8-key matrix and 4 COM × 35 SEG display. |
| Portable Medical Device | Home Appliance Control |
|
Use Scenario: Handheld blood glucose monitor with LCD readout, button interface, and USB charging status indication. IC Role / Device Role / Timing Role: Primary MCU handling glucose algorithm, LCD segment control, buzzer feedback (PCLBUZ0), and low-voltage detection (LVD) for battery warning. Use Value: 1.6 V minimum operating voltage allows operation down to near-dead battery; built-in LVD with 14 threshold options enables precise low-battery alerts. |
Use Scenario: Microwave oven or washing machine control board with segmented display, rotary encoder interface, and motor timing. IC Role / Device Role / Timing Role: Real-time controller managing cooking cycle timing (16-bit timers), display update (LCD controller), and user input (key return lines KR0–KR3). Use Value: 8-channel timer array supports simultaneous PWM for fan/motor control and precise interval timing for cooking steps; 31 DMIPS handles complex UI state machines smoothly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RJAGFA#X0 | Same 52-pin LQFP package and 32 KB flash, but 16 KB code flash variant; identical peripheral set and pinout. | Targeted at cost-sensitive designs where firmware size ≤16 KB eliminates need for larger flash. | Select when firmware image fits within 16 KB and BOM cost reduction is prioritized over future upgrade headroom. |
| R5F10RLCGFA#X0 | 64-pin LQFP with same 32 KB flash, 2 KB data flash, and industrial temp rating; adds 10 extra I/O pins and 2 additional ADC channels. | Suitable for designs requiring more GPIOs, higher-resolution sensor arrays, or expanded LCD (up to 39×4), e.g., advanced industrial HMIs. | Choose when additional I/O, extended LCD capability, or enhanced analog channel count justifies larger package and layout change. |
Compared with R5F10RJCGFA#X0, R5F10RJAGFA#X0 offers identical functionality at lower flash density for cost optimization, while R5F10RLCGFA#X0 provides scalable I/O and analog resources in a larger footprint-enabling design evolution without architectural redesign.
Availability
R5F10RJCGFA#X0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and portable medical device applications requiring stable component supply, long-term lifecycle assurance, and industrial temperature qualification.
Supply support for R5F10RJCGFA#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/L12 product line is engineered specifically for ultra-low-power LCD-based applications, integrating high-efficiency CPU, precision analog, and comprehensive display control in a single chip to reduce system complexity and bill-of-materials cost.
FAQ
What is the maximum LCD resolution supported by the R5F10RJCGFA#X0?
The R5F10RJCGFA#X0 supports up to 35 segments × 8 commons or 39 segments × 4 commons using its integrated LCD controller/driver. This configuration is confirmed in the RL78/L12 datasheet (R01DS0157EJ0223 Rev.2.23, Page 1) and enables direct drive of alphanumeric or custom segment displays without external driver ICs. The R5F10RJCGFA#X0 uses dedicated VL1–VL4 bias outputs and COM0–COM7/SEG0–SEG36 pins to achieve this.
Does the R5F10RJCGFA#X0 include hardware support for functional safety standards?
Yes, the R5F10RJCGFA#X0 includes multiple hardware features aligned with IEC/UL 60730 Class B requirements: flash memory CRC calculation engine, RAM parity error detection, SFR write protection, illegal memory access detection, clock frequency monitoring, and ADC self-test capability. These are documented in Section 1.1 Features of the R01DS0157EJ0223 datasheet and reduce software certification burden for safety-critical applications.
What are the power supply requirements for the R5F10RJCGFA#X0's LCD driver section?
The R5F10RJCGFA#X0 requires external capacitors on CAPL (P126) and CAPH (P127) pins to enable its internal voltage boost method for LCD bias generation. A 0.47–1 µF capacitor must also be placed between REGC and VSS to stabilize the internal regulator. The VL1–VL4 outputs provide programmable LCD bias voltages, and the device supports capacitor split and resistance division methods as alternatives.
Can the R5F10RJCGFA#X0 operate from a single 3.3 V supply in both active and low-power modes?
Yes, the R5F10RJCGFA#X0 operates across 1.6 V to 5.5 V, fully supporting 3.3 V single-supply operation in all modes. Its active current is 62.5 µA/MHz at 24 MHz, and it achieves 0.64 µA in Halt mode (RTC + LVD enabled) at 3.3 V. This is verified in the "Ultra-Low Power Technology" section (Page 1) of the R01DS0157EJ0223 datasheet.
How many analog input channels does the R5F10RJCGFA#X0 support, and what is their resolution?
The R5F10RJCGFA#X0 integrates a 10-bit successive approximation ADC with up to 10 input channels (ANI0–ANI23, with channel mapping dependent on pin configuration). Conversion time is 2.1 µs, and it supports operation down to 1.6 V supply with an internal 1.45 V reference voltage. This is specified in the "Rich Analog" feature list (Page 1) and Table 1-1 pinout summary (Page 4) of the datasheet.
R5F10RJCGFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/L12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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#X0 FAQ
1.How can I place an order for R5F10RJCGFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RJCGFA#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 R5F10RJCGFA#X0 reliable?
The price and inventory of R5F10RJCGFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RJCGFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F10RJCGFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RJCGFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RJCGFA#X0?
R5F10RJCGFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RJCGFA#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 R5F10RJCGFA#X0?
For technical support, including R5F10RJCGFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RJCGFA#X0 requirements.
6.How does Aetrix verify that R5F10RJCGFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F10RJCGFA#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 R5F10RJCGFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F10RJCGFA#X0?
All R5F10RJCGFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RJCGFA#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 R5F10RJCGFA#X0 part is unused and in its original packaging.
Return procedure for R5F10RJCGFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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