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Renesas R5F10RFAAFP#V0
- Part No.:
- R5F10RFAAFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F10RFAAFP#V0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,190
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Product details
Overview
R5F10RFAAFP#V0 from Renesas is an 8 KB flash, 1 KB RAM, 44-pin LQFP RL78/L12 microcontroller with integrated LCD controller/driver (up to 39 seg × 4 com), 10-bit ADC (10 channels), RTC with calendar/alarm, and ultra-low-power operation (62.5 µA/MHz active, 0.64 µA in RTC+LVD halt mode). It targets battery-powered LCD display systems such as smart meters, thermostats, and portable medical devices.
For engineers reviewing the R5F10RFAAFP#V0 datasheet, R5F10RFAAFP#V0 pinout, R5F10RFAAFP#V0 application, or R5F10RFAAFP#V0 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm pitch package, 1.6–5.5 V supply range, on-chip 24 MHz ±1% oscillator, and support for capacitor-split and internal-boost LCD drive methods.
Technical Context
The R5F10RFAAFP#V0 implements the 16-bit RL78 CPU core with Harvard architecture, delivering 31 DMIPS at 24 MHz and executing 86% of instructions in 1–2 clock cycles. Its low-power design includes multiple sleep modes-Stop (0.23 µA RAM-retained), Halt (0.64 µA with RTC + LVD), and Snooze-with dedicated voltage regulator (REGC) and LCD bias generation (VL1–VL4, CAPL/CAPH).
It integrates a full peripheral suite for LCD-centric applications: dual CSI interfaces (SPI-compatible), I²C (IICA0), UART0, 8-channel timer array, 2-channel DMA, 12-bit interval timer, and programmable buzzer outputs (PCLBUZ0/PCLBUZ1). Safety features include RAM parity, flash CRC, SFR write protection, and illegal memory access detection per IEC/UL 60730.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU, 31 DMIPS @ 24 MHz, 3-stage pipeline, CISC Harvard architecture |
| Memory | 8 KB code flash (1 KB blocks), 2 KB data flash (1M erase cycles), 1 KB RAM with backup retention |
| Power | 1.6–5.5 V supply; 62.5 µA/MHz active; 0.64 µA Halt (RTC + LVD); 0.23 µA Stop (RAM retained) |
| LCD Support | Up to 39 seg × 4 com or 35 seg × 8 com; capacitor split, internal boost, or resistor division drive methods |
| Analog | 10-bit ADC with 10 channels, 2.1 µs conversion, internal 1.45 V reference, on-chip temperature sensor |
| Clock | 24 MHz on-chip oscillator (±1% over 1.8–5.5 V / −20°C to +85°C); supports external crystal (X1/X2) and subsystem clock (XT1/XT2) |
| Package | 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, consumer-grade (−40°C to +85°C) |
Pinout & Package
44-pin plastic LQFP (10 × 10 mm, 0.8 mm pitch), JEDEC standard footprint, tray packaging (#V0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/TI07/TO07/KR2/SEG28 | SPI clock / Timer input/output / Key return / LCD segment | Multi-function pin supporting serial communication, timing capture/generation, keypad scanning, and LCD drive |
| P11/SI00/RxD0/TOOLRxD/KR1/SEG29 | SPI data in / UART receive / debug interface / key return / LCD segment | Enables full-duplex SPI, asynchronous serial communication, on-chip debug, and shared LCD/key functions |
| P12/SO00/TxD0/TOOLTxD/KR0/SEG30 | SPI data out / UART transmit / debug interface / key return / LCD segment | Supports SPI master/slave, UART transmission, tool communication, and dual-role LCD/key driving |
| P140/TO00/PCLBUZ0/KR3/SEG27 | Timer output / programmable buzzer / key return / LCD segment | Provides PWM-driven audible feedback, precise timing output, keypad scan, and LCD segment control |
| P141/TI00/PCLBUZ1/SEG26 | Timer input / second buzzer output / LCD segment | Enables dual-tone buzzer generation, external event capture, and additional LCD segment drive capability |
| COM0–COM7 | LCD common electrode outputs | Drive up to 8 LCD commons; configuration determines multiplex ratio (4-com or 8-com mode) |
| VL1–VL4, CAPL, CAPH | LCD bias voltage generation | On-chip charge pump and capacitor network for generating stable LCD contrast voltages |
| REGC | Voltage regulator decoupling | Must be connected to VSS via 0.47–1 µF capacitor to stabilize internal 1.8 V regulator 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 portable displays |
| Integrated LCD controller/driver | Hardware-accelerated segment/common timing, contrast adjustment (16 steps), blinking control, and waveform A/B support |
| Self-programmable flash & data flash | Background data flash writes enable firmware updates and nonvolatile parameter storage without halting execution |
| On-chip debug interface | Single-wire on-chip debug (TOOL0/P40) eliminates need for external JTAG emulator during development |
| Functional safety compliance | Built-in RAM parity, flash CRC, SFR write protection, and illegal access detection meet IEC/UL 60730 Class B requirements |
| Flexible clock system | Configurable high-speed on-chip oscillator (24/16/12/8/6/4/3/2/1 MHz) eliminates external crystal in cost-sensitive designs |
Applications
| Smart Energy Meter | Programmable Thermostat |
|---|---|
Use Scenario: Battery-powered residential electricity meter with segmented LCD display, real-time tariff tracking, and tamper detection. IC Role / Device Role / Timing Role: Main system controller managing LCD refresh, RTC-based billing intervals, ADC-based current sensing, and secure data logging. Use Value: Ultra-low 0.64 µA Halt mode extends 10-year battery life; integrated LCD driver reduces BOM count by eliminating external segment drivers. |
Use Scenario: Wireless HVAC controller with 4-digit LCD, push-button interface, ambient temperature/humidity sensing, and scheduling logic. IC Role / Device Role / Timing Role: Central MCU handling keypad scanning (KR0–KR3), LCD update, sensor polling, and RTC-triggered schedule execution. Use Value: On-chip 10-bit ADC and temperature sensor eliminate discrete analog front-end; 16-step contrast control ensures readability across lighting conditions. |
| Portable Medical Monitor | Industrial Panel Indicator |
Use Scenario: Handheld pulse oximeter with OLED/LCD hybrid display, optical sensor interface, and low-power sleep between readings. IC Role / Device Role / Timing Role: Primary controller executing ADC sampling, LED drive timing, LCD refresh, and Bluetooth LE data transmission coordination. Use Value: 62.5 µA/MHz active power enables >200 hours runtime on coin cell; snooze mode allows fast wake-up from deep sleep for responsive user interaction. |
Use Scenario: DIN-rail mounted machine status indicator with 8-segment LCD, relay control outputs, and RS-485 communication. IC Role / Device Role / Timing Role: Dedicated display manager interfacing with host PLC via UART/I²C while maintaining independent LCD timing and contrast calibration. Use Value: Hardware LCD controller offloads timing-critical tasks from host processor; 5.5 V tolerant I/O simplifies level-shifting with industrial 24 V logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RFCAFP#V0 | 32 KB flash, same 44-pin LQFP package, identical peripherals and pinout | Supports larger firmware (e.g., OTA updates, advanced UI logic) without PCB change | Select when future firmware growth or enhanced data logging is anticipated |
| R5F10RGAAFB#V0 | 48-pin LFQFP (7×7 mm, 0.5 mm pitch), 16 KB flash, adds 4 extra I/O pins and ANI22/ANI23 inputs | Enables higher-resolution LCD (35 seg × 8 com) and additional analog sensor channels | Choose for denser I/O layouts or expanded analog acquisition needs; requires PCB redesign |
Compared with R5F10RFAAFP#V0, R5F10RFCAFP#V0 offers scalable code space within identical mechanical and electrical constraints, while R5F10RGAAFB#V0 trades smaller footprint for greater analog and display capability-neither is pin-compatible, but both share the RL78/L12 instruction set and peripheral register map.
Availability
R5F10RFAAFP#V0 is available at Aetrix Electronics and suitable for smart energy meters, programmable thermostats, and portable medical monitors requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F10RFAAFP#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 delivers true low-power performance for LCD-based human interface applications, integrating optimized display control, precision analog, and robust safety features in compact packages.
FAQ
What is the maximum operating frequency and power consumption of the R5F10RFAAFP#V0?
The R5F10RFAAFP#V0 operates at up to 24 MHz using its on-chip oscillator, delivering 31 DMIPS. In active mode, it consumes 62.5 µA per MHz; in Halt mode with RTC and LVD enabled, it draws just 0.64 µA. These values are measured at 1.8–5.5 V and −40°C to +85°C, making R5F10RFAAFP#V0 ideal for battery-constrained LCD applications.
Does the R5F10RFAAFP#V0 support external crystals, and what are the options?
Yes, the R5F10RFAAFP#V0 supports external crystals on X1/X2 pins for main system clock (1–20 MHz) and XT1/XT2 pins for subsystem clock (32.768 kHz). It also supports external clock input on EXCLK/EXCLKS. The on-chip 24 MHz oscillator provides ±1% accuracy across voltage and temperature, allowing crystal-free operation where timing tolerance permits.
How many LCD segments and commons does the R5F10RFAAFP#V0 drive, and what drive methods are supported?
The R5F10RFAAFP#V0 drives up to 39 segments and 4 commons (39 seg × 4 com) or 35 segments and 8 commons (35 seg × 8 com). It supports three LCD drive methods: capacitor split, internal voltage boost, and external resistance division-all selectable in software. VL1–VL4 and CAPL/CAPH pins configure the bias network.
What safety features does the R5F10RFAAFP#V0 include for certified applications?
The R5F10RFAAFP#V0 includes flash memory CRC calculation, RAM parity error check, RAM write protection, SFR write protection, illegal memory access detection, clock frequency detection, and ADC self-test-features aligned with IEC/UL 60730 Class B requirements for household and similar equipment.
Can the R5F10RFAAFP#V0 perform simultaneous ADC conversions and LCD refresh?
Yes, the R5F10RFAAFP#V0 supports concurrent operation: its 10-bit ADC (10 channels, 2.1 µs conversion) and LCD controller run independently under DMA or interrupt control. This allows continuous sensor monitoring while maintaining flicker-free LCD updates, critical for responsive HMI in thermostats and meters.
R5F10RFAAFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-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:
- 29
- Program Memory Size:
- 16KB (16K 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 7x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RFAAFP#V0 FAQ
1.How can I place an order for R5F10RFAAFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RFAAFP#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 R5F10RFAAFP#V0 reliable?
The price and inventory of R5F10RFAAFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RFAAFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F10RFAAFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RFAAFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RFAAFP#V0?
R5F10RFAAFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RFAAFP#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 R5F10RFAAFP#V0?
For technical support, including R5F10RFAAFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RFAAFP#V0 requirements.
6.How does Aetrix verify that R5F10RFAAFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F10RFAAFP#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 R5F10RFAAFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F10RFAAFP#V0?
All R5F10RFAAFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RFAAFP#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 R5F10RFAAFP#V0 part is unused and in its original packaging.
Return procedure for R5F10RFAAFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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