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Renesas R5F10RLAAFB#X0
- Part No.:
- R5F10RLAAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F10RLAAFB#X0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,935
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Product details
Overview
R5F10RLAAFB#X0 from Renesas is a 64-pin LFQFP, 32 KB flash, 2 KB data flash, 1.5 KB RAM RL78/L12 microcontroller with integrated LCD controller/driver (up to 39 seg × 8 com), 10-bit ADC (10 channels), RTC, 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 R5F10RLAAFB#X0 datasheet, R5F10RLAAFB#X0 pinout, R5F10RLAAFB#X0 application, or R5F10RLAAFB#X0 equivalent, key selection criteria include its 64-pin LFQFP-0.5 mm pitch package, 32 KB code flash with self-programming, on-chip LCD drive supporting capacitor split and internal boost methods, and verified 31 DMIPS performance at 24 MHz.
Technical Context
The R5F10RLAAFB#X0 implements the 16-bit RL78 CPU core with Harvard architecture, 3-stage pipeline, and 86% of instructions executed in 1–2 clock cycles. It integrates a dedicated LCD controller supporting waveform types A/B, 16-step contrast adjustment, and blinking control - all configurable without CPU intervention.
Its power management includes dual voltage regulators (VDD/EVDD separation), POR/LVD with 14 threshold options, and multiple low-power modes: Stop (0.23 µA), Halt (0.64 µA), and Snooze. The high-speed on-chip oscillator delivers ±1% accuracy from 1.8 V to 5.5 V across −20°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU with 31 DMIPS @ 24 MHz; enables real-time sensor processing in compact firmware |
| Flash / Data Flash | 32 KB code flash (1 KB blocks) + 2 KB background-operating data flash (1M erase cycles); supports field firmware updates |
| RAM | 1.5 KB on-chip RAM with backup retention in all low-power modes; sufficient for LCD frame buffer + application variables |
| LCD Drive | Supports up to 39 segments × 8 commons via capacitor split or internal voltage boost; eliminates external LCD bias IC |
| ADC | 10-bit, 10-channel ADC with 2.1 µs conversion time and internal 1.45 V reference; suitable for battery voltage and temperature monitoring |
| Low-Power Modes | Halt mode draws 0.64 µA with RTC + LVD active; enables multi-year battery life in metering applications |
| Operating Range | −40°C to +85°C, 1.6 V to 5.5 V supply; qualified for consumer-grade industrial environments |
Pinout & Package
Package: 64-pin LFQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 I/O | Configurable GPIO with internal pull-up; used for keypad scanning (KR0–KR3) and serial interfaces (SCK00/SI00/SO00) |
| P30–P32 | Port 3 I/O | Timer I/O (TI01/TO01, TI03/TO03), RTC1HZ output, and interrupt inputs (INTP3/INTP4) |
| P60/P61 | I²C interface | SCLA0/SDAA0 pins support standard-mode I²C communication with external sensors or EEPROM |
| P121/P122 | Crystal oscillator | X1/X2 connections for main system clock (1–20 MHz crystal); required for precise RTC and timing-critical functions |
| COM0–COM7 | LCD common outputs | Drive up to 8 LCD backplane signals; enable multiplexed display with reduced segment driver count |
| SEG0–SEG38 | LCD segment outputs | 39 dedicated segment drivers; support full alphanumeric + icon displays without external drivers |
| VDD/EVDD, VSS/EVSS | Power/Ground pairs | Separate analog/digital supplies reduce noise coupling into LCD and ADC circuits |
| REGC | Regulator bypass | Must connect 0.47–1 µF capacitor to VSS; stabilizes internal voltage regulator for consistent LCD contrast |
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 | Configurable drive method (capacitor split/internal boost) and 16-step contrast control - eliminates external bias generator |
| Self-programmable flash | On-chip flash shield window allows secure firmware updates without external programming hardware |
| Hardware CRC engine | Dedicated peripheral calculates flash memory CRC for IEC 60730 Class B compliance in safety-critical systems |
| Programmable buzzer output | PCLBUZ0/PCLBUZ1 generate tone frequencies directly from timer outputs - reduces BOM count for audio feedback |
Applications
| Smart Energy Meter | Programmable Thermostat |
|---|---|
Use Scenario: Residential electricity meter with segmented LCD display showing kWh, tariff, and time-of-use data. IC Role / Device Role / Timing Role: Primary MCU managing metrology calculations, LCD refresh, RTC-based billing intervals, and IR/UART communication. Use Value: Integrated LCD driver and 0.64 µA Halt mode enable 10+ year battery backup for tamper-resistant meters. | Use Scenario: Battery-powered HVAC controller with 4-line LCD, temperature/humidity sensing, and schedule-based setpoint control. IC Role / Device Role / Timing Role: System controller handling sensor ADC reads, PID loop execution, LCD update, and RTC-triggered heating/cooling cycles. Use Value: On-chip 10-bit ADC and 16-step LCD contrast tuning ensure accurate readings and legible display across varying ambient light. |
| Portable Medical Monitor | Industrial Panel Display |
Use Scenario: Handheld pulse oximeter with OLED-compatible LCD, SpO₂ calculation, and low-battery warning. IC Role / Device Role / Timing Role: Real-time signal processor for analog front-end, LCD driver, and low-power state manager during standby. Use Value: 31 DMIPS CPU and 2.1 µs ADC conversion support fast photoplethysmogram sampling without external co-processor. | Use Scenario: DIN-rail mounted HMI displaying machine status, alarms, and parameter settings in factory automation. IC Role / Device Role / Timing Role: Local display controller interfacing with PLC via UART/I²C while driving 39-segment LCD for status icons and numeric values. Use Value: 64-pin LFQFP package provides ample GPIO for keypad, LED indicators, and isolated communication peripherals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RLCAFB#X0 | Same package and pinout; 32 KB flash, 2 KB data flash, 1.5 KB RAM - identical memory configuration | No functional difference; both rated for −40°C to +85°C (A-grade) | Select R5F10RLCAFB#X0 only if Renesas documentation explicitly confirms identical qualification and errata status |
| R5F10RJCAFA#X0 | 52-pin LQFP (10×10 mm, 0.65 mm pitch); 32 KB flash but only 1 KB RAM and no EVDD/EVSS pins | Reduced I/O count (48 vs. 58) and no separate analog power domain - limits LCD size and noise-sensitive ADC use | Choose only when board space constraints require smaller footprint and LCD requirements are ≤30 seg × 4 com |
Compared with R5F10RLAAFB#X0, R5F10RLCAFB#X0 offers identical functionality and pin compatibility, while R5F10RJCAFA#X0 trades I/O count, analog isolation, and LCD capacity for compact packaging - making it suitable only for less demanding display applications.
Availability
R5F10RLAAFB#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 R5F10RLAAFB#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/L12 product line delivers ultra-low-power MCUs optimized for LCD-based human interface applications, integrating display drivers, precision timing, and robust safety features for cost-sensitive, battery-operated devices.
FAQ
What is the maximum LCD resolution supported by the R5F10RLAAFB#X0?
The R5F10RLAAFB#X0 supports up to 39 segments × 8 commons (312 segments) using the capacitor split method or internal voltage boost. This enables full alphanumeric displays with custom icons, verified in Renesas' RL78/L12 hardware design guidelines and confirmed in the device's block diagram and pin configuration tables.
Does the R5F10RLAAFB#X0 include hardware support for functional safety standards?
Yes, the R5F10RLAAFB#X0 includes hardware CRC calculation, RAM parity error detection, SFR write protection, illegal memory access detection, and clock frequency monitoring - all documented in the RL78/L12 datasheet as compliant with IEC/UL 60730 Class B requirements for household appliance control.
What are the power supply requirements for the R5F10RLAAFB#X0's LCD driver section?
The R5F10RLAAFB#X0 requires separate VL1–VL4 pins for LCD bias generation and mandates a 0.47–1 µF capacitor between REGC and VSS. Its LCD driver operates across the full 1.6 V to 5.5 V VDD range, with internal boost enabling 3.0 V LCD operation even at 1.8 V system supply - per Section 1.1 "LCD Controller/Driver" in the datasheet.
Can the R5F10RLAAFB#X0 execute code while writing to data flash memory?
Yes, the R5F10RLAAFB#X0 supports background operation for data flash: read and execute from code flash continue uninterrupted during data flash erase/programming. This capability is explicitly stated in the "Data Flash Memory" feature list and verified in the functional description of the flash shield window mechanism.
What debug interface does the R5F10RLAAFB#X0 provide?
The R5F10RLAAFB#X0 includes a 1-wire on-chip debug interface accessible via TOOL0 (P40) and TOOLRxD/TOOLTxD (P11/P12), enabling full break-point debugging, register inspection, and flash programming without additional JTAG hardware - as specified in the "16-bit RL78 CPU Core" feature section.
R5F10RLAAFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 47
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RLAAFB#X0 FAQ
1.How can I place an order for R5F10RLAAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RLAAFB#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 R5F10RLAAFB#X0 reliable?
The price and inventory of R5F10RLAAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RLAAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F10RLAAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RLAAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RLAAFB#X0?
R5F10RLAAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RLAAFB#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 R5F10RLAAFB#X0?
For technical support, including R5F10RLAAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RLAAFB#X0 requirements.
6.How does Aetrix verify that R5F10RLAAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F10RLAAFB#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 R5F10RLAAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F10RLAAFB#X0?
All R5F10RLAAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RLAAFB#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 R5F10RLAAFB#X0 part is unused and in its original packaging.
Return procedure for R5F10RLAAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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