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Renesas R5F10RGCAFB#50
- Part No.:
- R5F10RGCAFB#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F10RGCAFB#50.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
R5F10RGCAFB#50 from Renesas is a 48-pin LFQFP 16-bit RL78/L12 microcontroller with 32 KB flash, 2 KB data flash, 1.5 KB RAM, integrated LCD controller/driver (35 seg × 8 com), and ultra-low-power operation (62.5 µA/MHz active, 0.64 µA in RTC+LVD halt mode). It targets battery-powered LCD display applications such as smart meters, thermostats, and portable medical devices.
For engineers reviewing the R5F10RGCAFB#50 datasheet, R5F10RGCAFB#50 pinout, R5F10RGCAFB#50 application, or R5F10RGCAFB#50 equivalent, key selection criteria include its 32 KB code flash density, 48-pin 0.5 mm pitch LFQFP package, on-chip LCD drive capability up to 35 segments × 8 commons, 10-bit ADC with 10 channels, and support for 1.6 V to 5.5 V single-supply operation.
Technical Context
The R5F10RGCAFB#50 implements the RL78 16-bit CISC Harvard architecture with 3-stage pipeline, delivering 31 DMIPS at 24 MHz. Its CPU supports multiply-accumulate operations in 2 cycles and barrel shift in 1 cycle, enabling efficient signal processing for sensor-based LCD interfaces.
It integrates a dedicated LCD controller supporting capacitor split, internal voltage boost, and resistance division methods, with programmable contrast (16 steps), blinking control, and waveform A/B selection - all configurable without external components. The real-time clock includes full calendar, alarm, and watch correction functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CPU, 31 DMIPS @ 24 MHz - enables responsive UI handling and sensor fusion in resource-constrained LCD systems |
| Memory | 32 KB code flash + 2 KB data flash + 1.5 KB RAM - sufficient for bootloader, firmware, calibration data, and LCD frame buffer |
| Power | 1.6 V to 5.5 V operation; 0.64 µA RTC+LVD halt current - extends battery life in always-on metering applications |
| LCD Drive | Up to 35 seg × 8 com; supports capacitor split & internal boost - eliminates external LCD bias ICs and reduces BOM cost |
| ADC | 10-bit, 10-channel, 2.1 µs conversion, 1.6 V min supply - allows direct sensing of battery voltage, temperature, and analog sensors |
| Timers | 8-channel 16-bit timer array + RTC + interval timer + 15 kHz watchdog - supports precise timing, calendar functions, and safety monitoring |
| Interfaces | 1× UART, 2× CSI (SPI-compatible), 1× I²C, LIN - enables communication with host MCU, EEPROM, sensors, and bus networks |
Pinout & Package
Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, consumer-grade (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P12–P17 | Port 1 (I/O) | Configurable GPIO with interrupt capability; P12–P14 also serve as SEG30–SEG32 and KR0–KR2 for keypad interface |
| P140, P141 | LCD segment / buzzer output | Drive SEG27/SEG26 and support programmable clock/buzzer generation without external drivers |
| COM0–COM7 | LCD common outputs | Support 8-common configuration enabling up to 35-segment displays using multiplexed drive |
| VL1–VL4 | LCD power supply rails | Independent bias voltage sources for LCD contrast tuning and low-power operation modes |
| P60, P61 | I²C interface (SCLA0/SDAA0) | Enable communication with external EEPROM, RTC, or sensor ICs using standard two-wire protocol |
| REGC | Voltage regulator decoupling | Must connect to VSS via 0.47–1 µF capacitor to stabilize internal LDO for LCD and analog circuits |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power LCD operation | 0.12 µA LCD current (capacitor split method) - enables multi-year battery life in coin-cell powered displays |
| On-chip high-speed oscillator | 24 MHz ±1% over 1.8–5.5 V and −20°C to +85°C - eliminates external crystal for main clock, reducing component count |
| Data flash background operation | 2 KB, 1 million erase cycles, 1.8–5.5 V programming - allows field firmware updates and parameter storage without halting CPU |
| Safety compliance support | CRC calculation, RAM parity check, SFR write protection, illegal access detection - meets IEC/UL 60730 Class B requirements |
| Peripheral I/O redirection | PIOR register enables dynamic pin function remapping - simplifies PCB layout and supports multiple hardware variants from one design |
Applications
| Smart Energy Meter | Programmable Thermostat |
|---|---|
Use Scenario: Residential electricity meter with segmented LCD display, tamper detection, and time-of-use tariff calculation. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, driving 4-digit LCD with 32 segments, managing real-time tariff switching via RTC calendar. Use Value: Integrated LCD driver and 32 KB flash eliminate external display controller; 0.64 µA RTC+LVD mode ensures >10-year battery backup during power outage. |
Use Scenario: Battery-powered HVAC controller with 3-line LCD, temperature/humidity sensing, and user keypad interface. IC Role / Device Role / Timing Role: Primary MCU handling sensor acquisition (ADC), LCD refresh, key scanning (KR0–KR3), and HVAC logic execution. Use Value: On-chip 10-channel ADC directly reads NTC thermistors and humidity sensors; 44 GPIO pins support keypad matrix and relay control without expanders. |
| Portable Medical Monitor | Industrial Panel Display |
Use Scenario: Handheld pulse oximeter with OLED-compatible LCD, SpO₂ algorithm, and low-battery alert. IC Role / Device Role / Timing Role: Real-time signal processor for photodiode ADC sampling, LCD update engine, and low-power sleep/wake management. Use Value: 62.5 µA/MHz active current minimizes thermal drift in analog front-end; built-in CRC and RAM parity ensure diagnostic integrity per IEC 62304. |
Use Scenario: DIN-rail mounted HMI for PLC systems with 2-line alphanumeric LCD, RS-485 communication, and pushbutton interface. IC Role / Device Role / Timing Role: Local display and I/O manager interfacing with main controller via UART/LIN, driving 28-segment LCD and reading 4×4 keypad. Use Value: 1.6 V minimum operating voltage supports wide-input DC-DC supplies; LIN interface enables seamless integration into industrial control networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RGAAB#50 | 16 KB flash, same 48-pin LFQFP package, identical peripherals and pinout | Lower memory capacity suits simpler UIs or cost-sensitive designs where 32 KB is unnecessary | Select when firmware size <12 KB and BOM cost optimization is critical |
| R5F10RLCAFB#50 | 64-pin LFQFP, 32 KB flash, adds 10 more GPIO, 4 additional ADC channels, and EVDD/EVSS separation | Required for larger LCDs (>35 seg), multi-sensor systems, or noise-sensitive industrial environments | Choose when needing >44 GPIO, enhanced analog performance, or separate analog/digital power domains |
Compared with R5F10RGCAFB#50, R5F10RGAAB#50 reduces flash by 50% but maintains identical low-power LCD features and package footprint, while R5F10RLCAFB#50 expands I/O and analog resources at the cost of larger board area and higher pin count - making R5F10RGCAFB#50 the optimal balance for mid-complexity LCD applications.
Availability
R5F10RGCAFB#50 is available at Aetrix Electronics and suitable for smart energy meters, programmable thermostats, and portable medical monitors requiring stable component supply across long production lifecycles.
Supply support for R5F10RGCAFB#50 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 designed specifically for ultra-low-power LCD-based applications, integrating display drivers, precision analog, and robust safety features into compact packages for battery-operated instrumentation.
FAQ
What is the maximum LCD segment count supported by R5F10RGCAFB#50?
R5F10RGCAFB#50 supports up to 35 segments × 8 commons (280 segment lines) using the capacitor split method, or 39 segments × 4 commons when configured for lower multiplex ratio - verified in Section 1.1 and Table 1-1 of R01DS0157EJ0223 Rev.2.23.
Does R5F10RGCAFB#50 require an external crystal for normal operation?
No. R5F10RGCAFB#50 includes a high-speed on-chip oscillator accurate to ±1% from 1.8 V to 5.5 V and −20°C to +85°C, enabling full 24 MHz operation without external crystals - though X1/X2 pins remain available for optional crystal use per Section 1.3.3.
What is the guaranteed minimum operating voltage for R5F10RGCAFB#50?
R5F10RGCAFB#50 operates down to 1.6 V across its full temperature range (−40°C to +85°C), supporting coin-cell and single-AA battery applications - confirmed in Section 1.1 "Ultra-Low Power Technology" and electrical characteristics tables of the datasheet.
How many ADC channels does R5F10RGCAFB#50 provide, and what is their resolution?
R5F10RGCAFB#50 provides 10 independent 10-bit ADC input channels with 2.1 µs conversion time and support for 1.6 V minimum supply - enabling simultaneous measurement of battery voltage, temperature, and multiple analog sensors without external signal conditioning.
Is R5F10RGCAFB#50 pin-compatible with other RL78/L12 variants in the 48-pin package?
Yes. All 48-pin RL78/L12 variants including R5F10RG8AFB, R5F10RGAAFB, and R5F10RGCAFB#50 share identical pinout and package (PLQP0048KF-A/KB-B/KL-A), allowing memory-density-based firmware reuse and hardware scalability within the same PCB footprint.
R5F10RGCAFB#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/L12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 33
- 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 9x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RGCAFB#50 FAQ
1.How can I place an order for R5F10RGCAFB#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RGCAFB#50 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 R5F10RGCAFB#50 reliable?
The price and inventory of R5F10RGCAFB#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RGCAFB#50 is usually 5 days.
3.What payment methods are accepted for R5F10RGCAFB#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RGCAFB#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RGCAFB#50?
R5F10RGCAFB#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RGCAFB#50 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 R5F10RGCAFB#50?
For technical support, including R5F10RGCAFB#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RGCAFB#50 requirements.
6.How does Aetrix verify that R5F10RGCAFB#50 is sourced from the original manufacturer or authorized distributors?
All R5F10RGCAFB#50 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 R5F10RGCAFB#50 meets industry standards.
7.What is the process for return or replacement of R5F10RGCAFB#50?
All R5F10RGCAFB#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RGCAFB#50, 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 R5F10RGCAFB#50 part is unused and in its original packaging.
Return procedure for R5F10RGCAFB#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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