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Renesas R5F10RLCAFA#V0
- Part No.:
- R5F10RLCAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10RLCAFA#V0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,739
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Product details
Overview
R5F10RLCAFA#V0 from Renesas is a 64-pin LQFP-packaged 16-bit RL78/L12 microcontroller with 32 KB flash, 2 KB data flash, 1.5 KB RAM, integrated LCD controller/driver (up to 39 seg × 4 com), and ultra-low-power operation (0.64 µA in RTC+LVD mode). It targets battery-powered LCD display systems such as smart meters, thermostats, and portable medical devices.
For engineers reviewing the R5F10RLCAFA#V0 datasheet, R5F10RLCAFA#V0 pinout, R5F10RLCAFA#V0 application, or R5F10RLCAFA#V0 equivalent, key selection criteria include its 24 MHz high-speed on-chip oscillator (±1% accuracy), 10-channel 10-bit ADC supporting 1.6 V operation, 8-channel timer array, and IEC/UL 60730 safety features for certified embedded control.
Technical Context
The R5F10RLCAFA#V0 implements a Harvard-architecture 16-bit RL78 CPU core delivering 31 DMIPS at 24 MHz, with 86% of instructions executed in 1–2 clock cycles and hardware multiply/accumulate support. Its low-power design includes multiple sleep modes (Stop: 0.23 µA, Halt: 0.64 µA) and LCD-specific current optimization (0.12 µA using capacitor split method).
It integrates a full-featured LCD controller supporting three drive methods (capacitor split, internal boost, resistance division), 16-step contrast adjustment, blinking control, and waveform A/B selection - all configurable without external components. The device also embeds CRC calculation, RAM parity checking, and SFR write protection for functional safety compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU, 31 DMIPS @ 24 MHz, CISC Harvard architecture with 3-stage pipeline |
| Memory | 32 KB code flash (1 KB blocks), 2 KB data flash (1M erase cycles), 1.5 KB RAM with backup retention |
| Power Consumption | 0.64 µA in Halt mode (RTC + LVD active); 62.5 µA/MHz during active operation |
| LCD Support | Up to 39 segment × 4 common outputs; supports capacitor split (0.12 µA), internal boost (0.63 µA @ 3.0 V), and resistance division methods |
| Analog Peripherals | 10-channel 10-bit ADC (2.1 µs conversion), internal 1.45 V reference, on-chip temperature sensor, AVREFP/AVREFM inputs |
| Clock Sources | 24 MHz on-chip oscillator (±1% over 1.8–5.5 V / −20°C to +85°C), 32.768 kHz subsystem crystal input, 15 kHz low-speed oscillator |
| Safety Features | Flash CRC, RAM parity check, SFR write protection, illegal memory access detection, clock frequency monitor, ADC self-test |
Pinout & Package
Package: 64-pin LQFP (12 mm × 12 mm, 0.65 mm pitch), RoHS-compliant, consumer-grade (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / EVDD | Power supply | Dual power domains: VDD for logic/core, EVDD for port I/O; must be tied together per datasheet cautions |
| VSS / EVSS | Ground | Dual ground domains: VSS for logic/core, EVSS for port I/O; must be tied together |
| P10–P17, P20–P21, P30–P32, etc. | General-purpose I/O | 5 V-tolerant, up to 20 mA sink/source per pin; many support peripheral functions via PIOR register |
| SEG0–SEG38, COM0–COM7 | LCD segment/common outputs | Direct drive capability for up to 39×4 LCD; no external bias required when using internal voltage boost |
| REGC | Regulator decoupling | Must connect 0.47–1 µF capacitor to VSS to stabilize internal voltage regulator for LCD circuitry |
| X1/X2, XT1/XT2 | Clock inputs | X1/X2 for main system clock (up to 20 MHz crystal); XT1/XT2 for 32.768 kHz RTC crystal |
| RESET | Active-low reset input | Asynchronous reset with internal POR and LVD monitoring; 14 programmable LVD threshold options |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power LCD operation | 0.12 µA LCD current using capacitor split method enables multi-year battery life in display-only standby |
| Integrated safety mechanisms | Hardware CRC engine, RAM parity checker, and illegal access detector meet IEC/UL 60730 Class B requirements |
| Flexible LCD drive configuration | Runtime-selectable drive method (capacitor split/internal boost/resistance division) and 16-step contrast tuning simplify display tuning |
| Self-programmable flash | Background data flash operation allows firmware updates without halting application execution |
| Peripheral I/O redirection | PIOR register enables dynamic remapping of UART, CSI, and timer pins to alternate ports-reducing PCB layout constraints |
Applications
| Smart Energy Metering | Programmable Thermostat |
|---|---|
Use Scenario: Battery-powered residential electricity meter with segmented LCD display showing kWh consumption, tariff, and time-of-use data. IC Role / Device Role / Timing Role: Primary system controller executing metrology algorithms, managing real-time calendar via integrated RTC, and driving 35-seg × 4-com LCD with low-current capacitor-split method. Use Value: 0.64 µA Halt-mode current extends 10-year battery life; built-in LVD ensures reliable brown-out detection during grid fluctuations. | Use Scenario: Wireless-connected HVAC thermostat with local LCD interface, temperature sensing, and scheduled setpoint control. IC Role / Device Role / Timing Role: Central MCU handling ambient temperature ADC sampling, RTC-based scheduling, keypad scanning via KR0–KR3, and 39-seg × 4-com LCD update. Use Value: On-chip 10-bit ADC (1.6 V min) interfaces directly to thermistor networks; 8-channel timer array manages PWM fan control and communication timing. |
| Portable Medical Monitor | Industrial Panel Display |
Use Scenario: Handheld pulse oximeter with OLED-compatible LCD, SpO₂ calculation, and battery status indicator. IC Role / Device Role / Timing Role: Real-time signal processor running digital filtering, driving monochrome LCD via internal boost method, and logging data to data flash. Use Value: Data flash endurance (1 million erase cycles) supports >5 years of daily usage logs; CRC and RAM parity ensure FDA-compliant data integrity. | Use Scenario: DIN-rail mounted industrial HMI displaying machine status, alarms, and parameter settings via 4-line LCD. IC Role / Device Role / Timing Role: Dedicated display controller interfacing to external sensors via I²C (SCLA0/SDAA0), updating LCD segments while maintaining watchdog supervision. Use Value: I²C multi-master support enables concurrent communication with temperature and pressure sensors; 5 V-tolerant I/O simplifies level-shifting with legacy industrial peripherals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RLAAFA#V0 | 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 expansion needs | Select when application code size remains under 14 KB after toolchain overhead and safety margins |
| R5F10RJCAFA#V0 | 52-pin LQFP (10×10 mm), same 32 KB flash/RAM but fewer I/O (48 vs. 58 total pins), reduced LCD segment count (36 vs. 39) | Better suited for space-constrained designs where full 64-pin I/O is unnecessary | Choose when board area is critical and LCD drive requirement is ≤36 seg × 4 com |
Compared with R5F10RLAAFA#V0, the R5F10RLCAFA#V0 provides double flash capacity for feature-rich firmware and OTA updates; versus R5F10RJCAFA#V0, it delivers 11 additional I/O pins and enhanced LCD drive capability-critical for complex UIs requiring more segments or keypad rows.
Availability
R5F10RLCAFA#V0 is available at Aetrix Electronics and suitable for smart energy metering, programmable thermostats, portable medical monitors, and industrial panel displays requiring stable component supply across long production lifecycles.
Supply support for R5F10RLCAFA#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 optimized display drivers, extended battery life features, and functional safety mechanisms for certified consumer and industrial equipment.
FAQ
What is the maximum operating frequency and core performance of the R5F10RLCAFA#V0?
The R5F10RLCAFA#V0 operates at up to 24 MHz using its high-speed on-chip oscillator and delivers 31 DMIPS. Its 16-bit RL78 CPU core executes 86% of instructions in 1–2 clock cycles, with hardware multiply (16×16→32-bit in 1 cycle) and MAC (2 cycles), enabling efficient real-time control in the R5F10RLCAFA#V0.
Does the R5F10RLCAFA#V0 support external crystal oscillators for precise timing?
Yes, the R5F10RLCAFA#V0 supports two independent crystal inputs: X1/X2 for the main system clock (up to 20 MHz) and XT1/XT2 for the 32.768 kHz subsystem clock used by the real-time clock (RTC). This dual-crystal capability ensures accurate timekeeping and robust system timing in the R5F10RLCAFA#V0.
How does the R5F10RLCAFA#V0 manage ultra-low-power operation in LCD applications?
The R5F10RLCAFA#V0 achieves 0.64 µA in Halt mode (RTC + LVD active) and as low as 0.12 µA LCD current using the capacitor split drive method. Its integrated LCD controller eliminates external bias components, and the low-voltage operation range (1.6–5.5 V) extends battery life-key advantages in the R5F10RLCAFA#V0's target applications.
What safety certifications or features does the R5F10RLCAFA#V0 include for industrial use?
The R5F10RLCAFA#V0 includes hardware-level safety features aligned with IEC/UL 60730 Class B: flash memory CRC calculation, RAM parity error detection, SFR write protection, illegal memory access detection, clock frequency monitor, and ADC self-test-all documented in the R5F10RLCAFA#V0 datasheet for functional safety validation.
Can the R5F10RLCAFA#V0 drive large LCD panels, and what is its maximum segment count?
Yes, the R5F10RLCAFA#V0 supports up to 39 segment × 4 common outputs (or 35 seg × 8 com), enabled by its integrated LCD controller/driver. It supports three drive methods-capacitor split, internal voltage boost, and resistance division-with 16-step contrast adjustment and blinking control, making it fully capable for complex displays in the R5F10RLCAFA#V0.
R5F10RLCAFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RLCAFA#V0 FAQ
1.How can I place an order for R5F10RLCAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RLCAFA#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 R5F10RLCAFA#V0 reliable?
The price and inventory of R5F10RLCAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RLCAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F10RLCAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RLCAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RLCAFA#V0?
R5F10RLCAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RLCAFA#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 R5F10RLCAFA#V0?
For technical support, including R5F10RLCAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RLCAFA#V0 requirements.
6.How does Aetrix verify that R5F10RLCAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F10RLCAFA#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 R5F10RLCAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F10RLCAFA#V0?
All R5F10RLCAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RLCAFA#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 R5F10RLCAFA#V0 part is unused and in its original packaging.
Return procedure for R5F10RLCAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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