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Renesas R5F10RF8AFP#X0
- Part No.:
- R5F10RF8AFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F10RF8AFP#X0.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,155
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Product details
Overview
R5F10RF8AFP#X0 from Renesas is an 8 KB flash, 1 KB RAM, 44-pin LQFP microcontroller in the RL78/L12 family, featuring integrated LCD controller/driver (up to 39 seg × 4 com), 10-bit ADC (10 channels), RTC with calendar/alarm, and ultra-low-power operation (0.64 µA in Halt mode with RTC+LVD). It targets battery-powered LCD display applications such as smart meters, thermostats, and portable medical devices.
For engineers reviewing the R5F10RF8AFP#X0 datasheet, R5F10RF8AFP#X0 pinout, R5F10RF8AFP#X0 application, or R5F10RF8AFP#X0 equivalent, key selection criteria include its 44-pin LQFP package, 8 KB code flash + 2 KB data flash, LCD drive capability with capacitor-split or internal-boost methods, and support for 1.6 V–5.5 V single-supply operation across −40°C to +85°C.
Technical Context
The R5F10RF8AFP#X0 implements the 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 architecture includes multiple sleep modes-Stop (0.23 µA), Halt (0.64 µA), and Snooze-with on-chip high-speed oscillator (±1% accuracy from 1.8 V–5.5 V).
It integrates a full-featured LCD controller supporting waveform types A/B, 16-step contrast adjustment, blinking control, and three driving methods (capacitor split, internal boost, resistance division), alongside dual CSI interfaces (SPI-compatible), one I²C, one UART, and up to 8-channel 16-bit timer array with RTC and interval timer.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU, 31 DMIPS @ 24 MHz |
| Flash / Data Flash | 8 KB code flash + 2 KB background-operable data flash (1M erase cycles) |
| RAM | 1 KB SRAM with backup retention in all power modes |
| Operating Voltage | 1.6 V to 5.5 V single supply - enables direct coin-cell or Li-ion battery operation |
| Power Consumption | Halt mode: 0.64 µA (RTC + LVD active); Operating: 62.5 µA/MHz |
| LCD Drive | Supports up to 39 segments × 4 commons; capacitor-split method draws only 0.12 µA |
| ADC | 10-bit resolution, 10 channels, 2.1 µs conversion time, supports 1.6 V minimum VDD |
| Temperature Range | −40°C to +85°C (Consumer-grade A-specification) |
Pinout & Package
Package: 44-pin plastic LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, JEDEC standard PLQP0044GC-A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P12–P17 | Port 1 I/O with KR/SEG functions | Configurable as key return inputs (KR0–KR2) or LCD segment outputs (SEG28–SEG33) |
| P30–P32 | Port 3 timer I/O | TI01/TO01 (P30), RTC1HZ output (P31), TI03/TO03 (P32) - enable precise timing and real-time event generation |
| P60/P61 | I²C interface pins | SCLA0 and SDAA0 - support multi-master I²C communication for sensor or peripheral interfacing |
| P121/P122 | Main system clock inputs | X1/X2 - accept external crystal (1–20 MHz) or external clock source for precise timing |
| REGC | Voltage regulator decoupling | Must connect to VSS via 0.47–1 µF capacitor - critical for stable internal LDO operation |
| VL1–VL4 | LCD bias voltage outputs | Provide segmented LCD power rails; configurable for capacitor-split or internal-boost driving schemes |
| COM0–COM3 | LCD common outputs | Drive up to 4 LCD commons - supports 39-seg × 4-com configuration in standard mode |
| RESET | Active-low reset input | Asynchronous reset with internal POR and LVD monitoring - ensures reliable startup under brownout |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Halt mode | 0.64 µA with RTC + LVD enabled - extends battery life in always-on display applications |
| Integrated LCD controller | Hardware-driven segment/common timing with 16-step contrast and blink control - eliminates external LCD driver IC |
| Data flash with background operation | 2 KB EEPROM-like storage with 1 million erase cycles - enables field firmware updates and parameter logging without halting CPU |
| On-chip debug interface | 1-wire on-chip debug (TOOL0/P40) - allows full debugging and programming using Renesas E2 studio and E2 Lite emulator |
| Functional safety support | CRC calculation unit, RAM parity check, SFR write protection, illegal access detection - meets IEC/UL 60730 Class B requirements |
| 5V-tolerant I/O | All general-purpose ports tolerate 5 V - simplifies interface with legacy peripherals and level-shifting circuits |
Applications
| Smart Energy Meter | Programmable Thermostat |
|---|---|
Use Scenario: Battery-powered residential electricity meter with segmented LCD display showing kWh, tariff, and time-of-use data. IC Role / Device Role / Timing Role: Primary system MCU managing metrology data acquisition, LCD rendering, RTC-based billing intervals, and secure communication via UART/I²C. Use Value: Integrated LCD driver and ultra-low-power Halt mode reduce BOM cost and extend 10-year battery life without external display controllers. | Use Scenario: Wall-mounted HVAC controller with 4-digit LCD, temperature/humidity sensing, and user button interface. IC Role / Device Role / Timing Role: Central controller handling sensor ADC reads, key scan (KR0–KR3), LCD refresh, and scheduled heating/cooling cycles via RTC alarm. Use Value: On-chip key return inputs and 10-bit ADC eliminate external signal conditioning, while 1.6 V operation supports alkaline battery backup. |
| Portable Medical Monitor | Industrial Panel Display |
Use Scenario: Handheld pulse oximeter with OLED/LCD display, LED drivers, and analog front-end for photodiode signals. IC Role / Device Role / Timing Role: Signal processor and display manager - digitizes analog sensor data, computes SpO₂, drives LCD segments, and logs readings to data flash. Use Value: 2.1 µs ADC conversion and background data flash allow concurrent measurement and non-volatile storage without CPU interruption. | Use Scenario: DIN-rail mounted industrial HMI displaying machine status, alarms, and setpoints via 4-line segmented LCD. IC Role / Device Role / Timing Role: Dedicated display controller interfacing with host PLC via UART, updating LCD content based on Modbus register changes. Use Value: 44-pin LQFP provides sufficient GPIO for COM/SEG lines and serial interface, while 5V-tolerant I/O simplifies connection to industrial-level RS-485 transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RFAAFP#X0 | 16 KB flash, same 44-pin LQFP package, identical peripherals and pinout | Requires larger firmware image; suitable when bootloader or OTA update space is needed | Select when future firmware expansion or dual-bank update capability is required |
| R5F10RG8AFB#X0 | 48-pin LFQFP (7×7 mm, 0.5 mm pitch), same 8 KB flash, adds 4 extra I/O and 2 additional ADC channels | Higher pin density; supports more sensors or expanded LCD (35 seg × 8 com) | Choose when additional GPIO or analog inputs are needed and board layout allows smaller pitch |
Compared with R5F10RF8AFP#X0, the R5F10RFAAFP#X0 offers double flash capacity in identical packaging for seamless scalability, while the R5F10RG8AFB#X0 trades package size for enhanced I/O and LCD flexibility - both retain full software compatibility within the RL78/L12 family.
Availability
R5F10RF8AFP#X0 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 R5F10RF8AFP#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/L12 product line is designed specifically for ultra-low-power LCD-based applications, integrating dedicated display control, precision timing, and robust analog peripherals in compact packages.
FAQ
What is the maximum operating frequency and performance of the R5F10RF8AFP#X0?
The R5F10RF8AFP#X0 operates at up to 24 MHz using its on-chip high-speed oscillator (±1% accuracy over voltage and temperature), delivering 31 DMIPS. Its 16-bit RL78 core executes 86% of instructions in 1–2 clock cycles, enabling responsive real-time control in LCD-centric applications without external clock components.
Does the R5F10RF8AFP#X0 support LCD driving with internal voltage boosting?
Yes, the R5F10RF8AFP#X0 supports internal voltage boosting for LCD driving, achieving 0.63 µA typical current draw at VDD = 3.0 V. This eliminates the need for external charge pumps in low-power displays, and the controller also supports capacitor-split (0.12 µA) and resistance-division methods for design flexibility.
What are the memory resources available on the R5F10RF8AFP#X0?
The R5F10RF8AFP#X0 includes 8 KB of on-chip code flash memory, 2 KB of background-operable data flash (rated for 1 million erase cycles), and 1 KB of SRAM with backup retention in all power modes. The data flash supports simultaneous read/write operations, enabling reliable parameter storage during active program execution.
How does the R5F10RF8AFP#X0 handle power management in battery-operated systems?
The R5F10RF8AFP#X0 provides multiple ultra-low-power modes: Stop mode draws 0.23 µA (RAM retained), Halt mode consumes just 0.64 µA with RTC and LVD active, and Snooze mode allows selective peripheral wake-up. These features enable multi-year battery life in applications like smart meters and thermostats without compromising functionality.
Is the R5F10RF8AFP#X0 pin-compatible with other RL78/L12 variants in the 44-pin LQFP package?
Yes, the R5F10RF8AFP#X0 shares identical pinout and peripheral mapping with other 44-pin RL78/L12 devices including R5F10RFAAFP#X0 and R5F10RFCAFP#X0. This allows drop-in replacement for flash capacity upgrades or feature scaling while preserving PCB layout and firmware compatibility.
R5F10RF8AFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-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:
- 29
- 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 7x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RF8AFP#X0 FAQ
1.How can I place an order for R5F10RF8AFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RF8AFP#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 R5F10RF8AFP#X0 reliable?
The price and inventory of R5F10RF8AFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RF8AFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F10RF8AFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RF8AFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RF8AFP#X0?
R5F10RF8AFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RF8AFP#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 R5F10RF8AFP#X0?
For technical support, including R5F10RF8AFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RF8AFP#X0 requirements.
6.How does Aetrix verify that R5F10RF8AFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F10RF8AFP#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 R5F10RF8AFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F10RF8AFP#X0?
All R5F10RF8AFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RF8AFP#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 R5F10RF8AFP#X0 part is unused and in its original packaging.
Return procedure for R5F10RF8AFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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