My Inquiry
My Account
Renesas R5F10RFAAFP#50
- Part No.:
- R5F10RFAAFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F10RFAAFP#50.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F10RFAAFP#50 from Renesas is an 8 KB flash, 1 KB RAM, 44-pin LQFP RL78/L12 16-bit microcontroller with integrated LCD controller/driver (up to 39 seg × 4 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 systems such as smart meters, thermostats, and portable medical devices.
For engineers reviewing the R5F10RFAAFP#50 datasheet, R5F10RFAAFP#50 pinout, R5F10RFAAFP#50 application, or R5F10RFAAFP#50 equivalent, key selection criteria include its 44-pin LQFP-0.8 mm pitch package, 1.6–5.5 V supply range, on-chip LCD drive capability with capacitor-split and internal boost methods, and IEC/UL 60730 safety features for Class B appliance control.
Technical Context
The R5F10RFAAFP#50 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and 86% of instructions executed in 1–2 clock cycles. It supports 24 MHz max operation (31 DMIPS) with ±1% accuracy over voltage and temperature using its high-speed on-chip oscillator.
Its integrated LCD controller supports waveform types A/B, 16-step contrast adjustment, blinking, and three drive methods - capacitor split (0.12 µA), internal voltage boost (0.63 µA at 3.0 V), and resistance division - enabling direct segment/common drive without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 86% single-cycle instruction execution |
| Max Clock Speed | 24 MHz (31 DMIPS); ±1% accuracy over 1.8–5.5 V and −20°C to +85°C |
| Memory | 8 KB code flash, 2 KB data flash (1M erase cycles), 1 KB RAM with backup retention |
| Power Modes | Halt (RTC+LVD): 0.64 µA; Stop (RAM retained): 0.23 µA; Active: 62.5 µA/MHz |
| LCD Drive | Up to 39 seg × 4 com or 35 seg × 8 com; supports capacitor-split, internal boost, and resistor-division methods |
| Analog Peripherals | 10-channel 10-bit ADC (2.1 µs conversion), on-chip temperature sensor, internal 1.45 V reference |
| Safety Features | CRC calculation, RAM parity check, SFR write protection, illegal memory access detection, clock frequency monitor |
Pinout & Package
44-pin plastic LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, JEDEC standard PLQP0044GC-A package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P12/SO00/TxD0/TOOLTxD/KR0/SEG30 | Serial output / UART TX / Key return / LCD segment | Multi-function pin supporting debug communication, LCD drive, and keypad scanning |
| P11/SI00/RxD0/TOOLRxD/KR1/SEG29 | Serial input / UART RX / Key return / LCD segment | Enables full-duplex UART with tool interface and shared LCD/key functionality |
| P10/SCK00/TI07/TO07/KR2/SEG28 | SPI clock / Timer input/output / Key return / LCD segment | Supports synchronous serial communication and timer-based timing while driving LCD segments |
| P140/TO00/PCLBUZ0/KR3/SEG27 | Timer output / Programmable buzzer / Key return / LCD segment | Combines audible feedback generation, keypad scanning, and LCD segment drive in one pin |
| COM0–COM3 | LCD common outputs | Four dedicated common-line drivers supporting up to 8-com multiplexing for low-power LCD bias |
| VL1–VL4 | LCD power supply rails | Independent voltage taps for LCD bias generation; VL4 = VDD, VL1–VL3 configurable via internal resistors |
| 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 blocks |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power LCD operation | 0.12 µA segment current (capacitor-split method) enables multi-year battery life in portable displays |
| Integrated safety compliance | Built-in CRC, RAM parity, and illegal access detection meet IEC/UL 60730 Class B requirements without external monitoring |
| Flexible clock system | High-speed on-chip oscillator (24 MHz ±1%) eliminates need for external crystal in cost-sensitive designs |
| Multi-mode LCD drive | Software-selectable capacitor-split, internal boost, or resistor-division drive adapts to panel voltage and power constraints |
| Real-time calendar RTC | Full calendar with alarm, watch correction, and 1 Hz output (RTC1HZ) enables time-stamped logging and scheduling |
| On-chip debug interface | Single-wire on-chip debug (TOOL0/P40) allows full firmware development and field updates without JTAG header |
Applications
| Smart Energy Meter Display | Programmable Thermostat UI |
|---|---|
Use Scenario: Battery-powered residential electricity meter with segmented LCD showing kWh, tariff, and status icons. IC Role / Device Role / Timing Role: Primary MCU managing LCD refresh, real-time energy accumulation, keypad input, and secure data logging. Use Value: Integrated LCD driver eliminates external bias IC; 0.64 µA Halt mode extends 10-year battery life; RTC enables accurate billing intervals. |
Use Scenario: Wall-mounted HVAC controller with 4-digit temperature readout, setpoint buttons, and schedule display. IC Role / Device Role / Timing Role: System controller handling user input, temperature sensing, relay control, and 4×8-segment LCD rendering. Use Value: KR0–KR3 key return pins support matrix keypad with no external scan logic; 10-bit ADC reads NTC thermistor directly. |
| Portable Medical Glucometer | Industrial Panel Indicator |
Use Scenario: Handheld blood glucose monitor with LCD showing test result, date/time, and trend arrows. IC Role / Device Role / Timing Role: Safety-critical controller executing ISO 13485-compliant measurement sequence and displaying calibrated results. Use Value: IEC 60730-certified safety features (CRC, RAM parity, watchdog) satisfy regulatory requirements; 1.6 V min operation supports aging alkaline batteries. |
Use Scenario: DIN-rail mounted machine status indicator with 8-segment alphanumeric display and LED warning lights. IC Role / Device Role / Timing Role: Dedicated display processor receiving Modbus RTU commands and updating LCD/LEDs independently of main PLC. Use Value: 44-pin LQFP provides sufficient GPIO for 8-seg digits + 4 LEDs + RS-485 transceiver control; 5.5 V max rating tolerates industrial 24 V supply transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RFCAFP#50 | 32 KB flash, same 44-pin LQFP package, identical peripherals and pinout | Higher code density for complex UI logic or firmware-over-the-air updates | Select when >8 KB application code size or future feature expansion is required |
| R5F10RGAAFB#50 | 48-pin LFQFP (7×7 mm, 0.5 mm pitch), 16 KB flash, adds 4 extra GPIO and 2 more ADC channels | Requires PCB redesign but enables larger LCD (35 seg × 8 com) or additional sensors | Choose for enhanced I/O count or higher-resolution analog sensing without changing core firmware architecture |
Compared with R5F10RFAAFP#50, R5F10RFCAFP#50 offers scalable code space in identical packaging, while R5F10RGAAFB#50 trades compact footprint for expanded peripheral count - both retain the same RL78/L12 safety and LCD capabilities critical for certified display applications.
Availability
R5F10RFAAFP#50 is available at Aetrix Electronics and suitable for smart meter displays, programmable thermostats, and portable medical devices requiring stable component supply across long production lifecycles.
Supply support for R5F10RFAAFP#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 delivers true low-power MCUs optimized for LCD-based human interface applications, integrating display drivers, safety features, and extended battery life in compact packages.
FAQ
What is the operating voltage range for the R5F10RFAAFP#50?
The R5F10RFAAFP#50 operates from 1.6 V to 5.5 V, enabling compatibility with single-cell Li-ion, two-cell alkaline, or regulated 3.3 V/5 V supplies. This wide range supports brown-out resilience in battery-powered systems and simplifies power design across diverse applications.
Does the R5F10RFAAFP#50 support external crystal oscillators?
Yes, the R5F10RFAAFP#50 supports external crystals on X1/X2 pins for main system clock (up to 20 MHz) and XT1/XT2 pins for subsystem clock (32.768 kHz). These provide precise timing for RTC and communication interfaces when higher accuracy than the ±1% on-chip oscillator is required.
How many LCD segments and commons can the R5F10RFAAFP#50 drive?
The R5F10RFAAFP#50 drives up to 35 segments × 8 commons or 39 segments × 4 commons. Its 44-pin LQFP package allocates COM0–COM3 and SEG0–SEG34, supporting common 4-digit or 8-digit segmented displays used in meters and controllers.
What safety certifications does the R5F10RFAAFP#50 support out of the box?
The R5F10RFAAFP#50 includes hardware-level safety features aligned with IEC/UL 60730 Class B, including flash CRC calculation, RAM parity checking, SFR write protection, illegal memory access detection, and clock frequency monitoring - all enabled without external components.
Is the R5F10RFAAFP#50 pin-compatible with other RL78/L12 variants in 44-pin LQFP?
Yes, all RL78/L12 44-pin LQFP variants - including R5F10RFAAFP#50, R5F10RF8AFP#50, and R5F10RFCAFP#50 - share identical pinouts and package dimensions (PLQP0044GC-A), enabling drop-in replacement for flash size scaling without PCB changes.
R5F10RFAAFP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-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:
- 40
- 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 7x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RFAAFP#50 FAQ
1.How can I place an order for R5F10RFAAFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RFAAFP#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 R5F10RFAAFP#50 reliable?
The price and inventory of R5F10RFAAFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RFAAFP#50 is usually 5 days.
3.What payment methods are accepted for R5F10RFAAFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RFAAFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RFAAFP#50?
R5F10RFAAFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RFAAFP#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 R5F10RFAAFP#50?
For technical support, including R5F10RFAAFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RFAAFP#50 requirements.
6.How does Aetrix verify that R5F10RFAAFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F10RFAAFP#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 R5F10RFAAFP#50 meets industry standards.
7.What is the process for return or replacement of R5F10RFAAFP#50?
All R5F10RFAAFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RFAAFP#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 R5F10RFAAFP#50 part is unused and in its original packaging.
Return procedure for R5F10RFAAFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10RFAAFP#50 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
