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Renesas R5F10RJ8GFA#V0
- Part No.:
- R5F10RJ8GFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F10RJ8GFA#V0.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,073
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Product details
Overview
R5F10RJ8GFA#V0 from Renesas is an 8 KB flash, 1.5 KB RAM, 52-pin LQFP microcontroller in the RL78/L12 family, featuring integrated LCD controller/driver (up to 35 seg × 8 com), 10-bit ADC (10 channels), real-time clock with calendar, and ultra-low-power operation (0.64 µA in RTC+LVD mode). It targets battery-powered LCD display systems such as smart meters and portable medical devices.
For engineers reviewing the R5F10RJ8GFA#V0 datasheet, R5F10RJ8GFA#V0 pinout, R5F10RJ8GFA#V0 application, or R5F10RJ8GFA#V0 equivalent, key selection criteria include its industrial-grade temperature range (−40°C to +105°C), on-chip LCD drive capability without external bias, 2 KB data flash with 1 million erase cycles, and support for capacitor-split and internal-boost LCD driving methods.
Technical Context
The R5F10RJ8GFA#V0 implements the 16-bit RL78 CPU core delivering 31 DMIPS at 24 MHz, with Harvard architecture, 3-stage pipeline, and 86% of instructions executed in 1–2 clock cycles. Its low-power design includes multiple sleep modes-Stop (0.23 µA), Halt (0.64 µA), and Snooze-with voltage regulation via internal LDO and REGC capacitor support.
It integrates a full-featured LCD controller supporting waveform types A/B, 16-step contrast adjustment, blinking control, and three driving methods. Analog subsystem includes 10-bit ADC with internal 1.45 V reference, on-chip temperature sensor, and AVREFP/AVREFM pins for precision measurement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU, 31 DMIPS @ 24 MHz, CISC Harvard with 3-stage pipeline |
| Memory | 8 KB code flash, 2 KB data flash (1M erase cycles), 1.5 KB RAM with backup retention |
| Power | 1.6 V to 5.5 V supply; 0.64 µA Halt mode (RTC + LVD enabled) |
| LCD Drive | Supports up to 35 segments × 8 commons; capacitor-split, internal-boost, or resistor-division methods |
| ADC | 10-bit resolution, 10 channels, 2.1 µs conversion time, supports 1.6 V minimum VDD |
| Timers | 8-channel 16-bit timer array, RTC with calendar/alarm/watch correction, 12-bit interval timer, 15 kHz windowed WDT |
| Interfaces | 1× UART (7–9 bit), 2× CSI (SPI-compatible), 1× I²C, 1× LIN, DMA with 2 channels |
Pinout & Package
Package: 52-pin LQFP (10 mm × 10 mm, 0.65 mm pitch), industrial-grade (−40°C to +105°C), lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00 / TI07 / TO07 / KR2 / SEG28 | Primary SPI clock input; timer I/O; key return; LCD segment output |
| P11 | SI00 / RxD0 / TOOLRxD / KR1 / SEG29 | UART receive; SPI data input; debug interface; key scan input; LCD segment |
| P12 | SO00 / TxD0 / TOOLTxD / KR0 / SEG30 | UART transmit; SPI data output; debug interface; key scan input; LCD segment |
| P140 | TO00 / PCLBUZ0 / KR3 / SEG27 | Timer output; programmable buzzer clock; key return; LCD segment |
| P30 | TI01 / TO01 / KR3 / SEG19 | Timer input/output; key return; LCD segment - shared function enables compact keypad + display integration |
| COM0–COM3 | LCD common outputs | Drive up to 4 LCD commons; configurable for 8-com mode with external circuitry |
| VL1–VL4 | LCD power supply rails | Independent bias voltages for LCD contrast control and waveform shaping |
| REGC | Regulator capacitor terminal | Requires 0.47–1 µF capacitor to VSS for stable internal LDO operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power LCD operation | 0.12 µA LCD current (capacitor-split method) enables multi-year battery life in portable displays |
| Integrated LCD controller | Eliminates external bias IC and timing logic; supports 35×8 or 39×4 segment configurations |
| Industrial temperature range | Rated for −40°C to +105°C operation, validated across full voltage (1.6–5.5 V) and frequency range |
| Data flash reliability | 2 KB background-operating data flash with 1 million erase cycles supports robust firmware parameter storage |
| On-chip safety features | CRC calculation, RAM parity check, SFR write protection, illegal memory access detection per IEC/UL 60730 |
Applications
| Smart Energy Metering | 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 MCU managing metrology interface, real-time billing calendar, LCD refresh, and low-power wake-up via RTC alarm. Use Value: Integrated LCD driver and 0.64 µA Halt mode extend battery life beyond 10 years without external bias components. |
Use Scenario: Handheld pulse oximeter or glucose monitor with monochrome LCD and tactile keypad. IC Role / Device Role / Timing Role: Central controller handling analog sensor acquisition (ADC), key scanning (KR0–KR3), LCD update, and buzzer feedback (PCLBUZ0). Use Value: Single-chip solution reduces BOM count by eliminating discrete LCD bias IC, key scanner, and RTC crystal. |
| Industrial Control Panel | Home Appliance Interface |
Use Scenario: DIN-rail mounted HVAC or PLC HMI with 4-line segmented display and membrane keypad. IC Role / Device Role / Timing Role: Dedicated UI processor managing LCD contrast adjustment (16 steps), key debounce, serial communication to main controller, and watchdog supervision. Use Value: On-chip LVD with 14 threshold options ensures reliable operation during brown-out conditions in factory environments. |
Use Scenario: Microwave oven or washing machine control panel with time-of-day display and function selection. IC Role / Device Role / Timing Role: Standalone UI MCU executing RTC-based cooking timers, buzzer alerts, and LCD segment updates synchronized to 1 Hz RTC1HZ output. Use Value: Full calendar RTC with watch correction function maintains accurate timekeeping over temperature drift without external compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RJAGFA#V0 | 16 KB flash, same 52-pin LQFP package, identical peripherals and pinout | Supports larger firmware images and more complex UI logic without layout change | Select when future firmware expansion or bootloader space requirements exceed 8 KB |
| R5F10RG8GFB#V0 | 48-pin LFQFP (7 mm × 7 mm), 8 KB flash, same core/peripherals but fewer I/O (44 vs. 48) and reduced LCD segment count (35×4 max) | Better suited for space-constrained designs where LCD size is smaller and PCB area is critical | Choose for compact form factors requiring footprint reduction, accepting lower LCD drive capability |
Compared with R5F10RJ8GFA#V0, the R5F10RJAGFA#V0 offers direct flash scalability within identical packaging and thermal performance, while the R5F10RG8GFB#V0 trades pin count and LCD capacity for a 30% smaller footprint-enabling cost and space optimization where display complexity is reduced.
Availability
R5F10RJ8GFA#V0 is available at Aetrix Electronics and suitable for smart metering, portable medical devices, industrial HMIs, and home appliance interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F10RJ8GFA#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/L12 product line is engineered for ultra-low-power LCD-based applications, integrating high-efficiency CPU, on-chip LCD driver, and robust peripheral sets to minimize external components in cost-sensitive, battery-operated displays.
FAQ
What is the maximum LCD segment count supported by the R5F10RJ8GFA#V0?
The R5F10RJ8GFA#V0 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 matches the 52-pin package's dedicated SEG/COM pin allocation.
Does the R5F10RJ8GFA#V0 include a real-time clock with calendar functionality?
Yes, the R5F10RJ8GFA#V0 includes a full-featured real-time clock (RTC) with calendar (year/month/day/hour/minute/second), alarm, and watch correction function. It operates independently in Halt mode consuming only 0.64 µA with LVD enabled, as specified in Section 1.1 of the datasheet.
What are the supported LCD driving methods for the R5F10RJ8GFA#V0?
The R5F10RJ8GFA#V0 supports three LCD driving methods: capacitor split (0.12 µA typical current), internal voltage boost (0.63 µA at VDD = 3.0 V), and external resistance division. These are selectable via register settings and documented in Section 1.1 "LCD Controller/Driver" of the datasheet.
Is the R5F10RJ8GFA#V0 qualified for industrial temperature operation?
Yes, the R5F10RJ8GFA#V0 is rated for industrial ambient temperature operation from −40°C to +105°C, indicated by the "G" suffix in the part number per Figure 1-1 (Page 3). This rating applies across its full 1.6 V to 5.5 V supply range and all specified operating frequencies.
What is the data flash endurance specification for the R5F10RJ8GFA#V0?
The R5F10RJ8GFA#V0 includes 2 KB of on-chip data flash memory rated for 1 million erase cycles (typical), with background operation support and erase/programming voltage compatibility from 1.8 V to 5.5 V, as stated in Section 1.1 "Data Flash Memory" of the datasheet.
R5F10RJ8GFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/L12
- Packaging:
- Tray
- 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:
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RJ8GFA#V0 FAQ
1.How can I place an order for R5F10RJ8GFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RJ8GFA#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 R5F10RJ8GFA#V0 reliable?
The price and inventory of R5F10RJ8GFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RJ8GFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F10RJ8GFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RJ8GFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RJ8GFA#V0?
R5F10RJ8GFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RJ8GFA#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 R5F10RJ8GFA#V0?
For technical support, including R5F10RJ8GFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RJ8GFA#V0 requirements.
6.How does Aetrix verify that R5F10RJ8GFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F10RJ8GFA#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 R5F10RJ8GFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F10RJ8GFA#V0?
All R5F10RJ8GFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RJ8GFA#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 R5F10RJ8GFA#V0 part is unused and in its original packaging.
Return procedure for R5F10RJ8GFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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