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Renesas R5F10RJAAFA#10
- Part No.:
- R5F10RJAAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F10RJAAFA#10.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
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Product details
Overview
R5F10RJAAFA#10 from Renesas Electronics is a 16-bit RL78/L12 microcontroller with integrated LCD controller/driver, 16 KB flash memory, 2 KB data flash, and 1 KB RAM, operating from 1.6 V to 5.5 V. It delivers 31 DMIPS at 24 MHz, consumes only 62.5 µA/MHz active and 0.64 µA in RTC+LVD halt mode, and supports up to 35-segment × 8-common LCD drive for battery-powered consumer instrumentation.
For engineers reviewing the R5F10RJAAFA#10 datasheet, R5F10RJAAFA#10 pinout, R5F10RJAAFA#10 application, or R5F10RJAAFA#10 equivalent, this device is selected for ultra-low-power LCD-based systems requiring on-chip timing (RTC), analog sensing (10-channel 10-bit ADC), serial interfaces (I²C, UART, CSI), and functional safety features compliant with IEC/UL 60730.
Technical Context
The R5F10RJAAFA#10 implements a Harvard-architecture 16-bit RL78 CPU core with 3-stage pipeline, enabling 86% of instructions in 1–2 clock cycles. It integrates a high-speed on-chip oscillator (24 MHz ±1% over voltage/temperature), low-speed oscillator (15 kHz), and subsystem clock support (32.768 kHz crystal).
Its peripheral set includes an 8-channel timer array with RTC and interval timer, DMA controller (2 channels), LCD controller supporting capacitor-split and internal-boost methods, and safety mechanisms including flash CRC, RAM parity check, SFR write protection, and illegal memory access detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU delivering 31 DMIPS at 24 MHz; executes 86% of instructions in 1–2 cycles |
| Memory | 16 KB code flash (1 KB blocks), 2 KB data flash (1M erase cycles), 1 KB RAM with backup retention |
| Power | 1.6 V–5.5 V operation; 62.5 µA/MHz active; 0.64 µA RTC+LVD halt; 0.23 µA stop (RAM retained) |
| LCD Drive | Supports up to 35 seg × 8 com or 39 seg × 4 com; selectable capacitor-split, internal-boost, or resistor-division methods |
| Analog | 10-channel 10-bit ADC (2.1 µs conversion); internal 1.45 V reference; on-chip temperature sensor |
| Interfaces | 1× I²C, 1× UART (7/8/9-bit), 2× CSI (SPI-compatible), 1× LIN; 5V-tolerant GPIO with 20 mA sink/source |
| Safety | IEC/UL 60730-compliant features: flash CRC, RAM parity, SFR write protection, clock frequency detection, ADC self-test |
Pinout & Package
52-pin LQFP package (10 mm × 10 mm, 0.65 mm pitch) with exposed thermal pad not present; pin functions include dedicated LCD segment/common outputs (SEG0–SEG36, COM0–COM7), analog inputs (ANI0–ANI23), key return (KR0–KR3), and dual power domains (VDD/EVDD, VSS/EVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P12/SO00/TxD0/TOOLTxD/SEG30 | Serial output / UART TX / Tool interface / LCD segment | Multi-function pin configurable as UART transmitter or LCD segment driver; supports tool communication during debug |
| P11/SI00/RxD0/TOOLRxD/SEG29 | Serial input / UART RX / Tool interface / LCD segment | Configurable as UART receiver or LCD segment; enables in-system programming and debug via TOOLRxD |
| P10/SCK00/TI07/TO07/SEG28 | CSI clock / Timer input/output / LCD segment | Provides synchronous serial clock for CSI00 or timer I/O; also drives LCD segment for compact display integration |
| P140/TO00/PCLBUZ0/SEG27 | Timer output / Buzzer clock / LCD segment | Generates programmable buzzer tones or PWM signals while simultaneously driving LCD segment-no external components needed |
| P31/INTP3/RTC1HZ/KR2/SEG18 | Interrupt / RTC 1 Hz output / Key return / LCD segment | Dual-purpose: provides precise 1 Hz timebase for real-time applications and serves as key-scan return line or segment driver |
| REGC | Regulator decoupling | Must be connected to VSS via 0.47–1 µF capacitor to stabilize internal voltage 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 meters |
| Integrated RTC with calendar | Full calendar + alarm + watch correction function eliminates need for external real-time clock IC |
| Self-programmable flash | On-chip flash shield window enables secure firmware updates without external programmer |
| Hardware CRC engine | Accelerates flash integrity checks for IEC 60730 Class B compliance in safety-critical firmware |
| Peripheral I/O redirection | PIOR register allows dynamic remapping of serial, timer, and interrupt functions to alternate pins-simplifies PCB layout |
Applications
| Smart Energy Meter | Portable Medical Monitor |
|---|---|
|
Use Scenario: Battery-powered electricity meter with segmented LCD display, tamper detection, and daily energy logging. IC Role / Device Role / Timing Role: Main system controller executing metering algorithms, driving 35×8 LCD, managing RTC-based billing intervals, and logging data to on-chip data flash. Use Value: 0.64 µA RTC+LVD halt mode extends battery life beyond 10 years; integrated ADC and LCD driver reduce BOM count by 3 components. |
Use Scenario: Handheld blood glucose or pulse oximeter with alphanumeric LCD, button interface, and USB-serial data export. IC Role / Device Role / Timing Role: Central MCU handling sensor signal acquisition (ADC), key scan (KR0–KR3), LCD refresh, and UART-to-PC communication. Use Value: 5V-tolerant GPIO simplifies direct connection to mechanical buttons; built-in buzzer clock (PCLBUZ0) enables audible alerts without external driver. |
| Home Appliance Control Panel | Industrial HVAC Display Module |
|
Use Scenario: Microwave oven or washing machine control panel with 4-digit LCD, rotary encoder, and relay drivers. IC Role / Device Role / Timing Role: User interface processor managing LCD segments, key returns, timer-based cooking cycles, and watchdog supervision. Use Value: On-chip 15 kHz watchdog with window function ensures fail-safe shutdown; 20 mA GPIO directly drives LED indicators and small relays. |
Use Scenario: DIN-rail mounted HVAC controller with 2-line LCD, temperature/humidity sensors, and Modbus RTU over UART. IC Role / Device Role / Timing Role: Embedded controller acquiring analog sensor data, updating LCD, and implementing Modbus slave protocol via UART. Use Value: 10-bit ADC with internal reference (1.45 V) enables accurate sensor readings across 1.6–5.5 V supply range; IEC 60730 safety features support industrial certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RJCAFA#10 | 32 KB flash, same 52-pin LQFP package, identical peripherals and power specs | Required when firmware exceeds 16 KB or future-proofing for feature expansion is needed | Select R5F10RJCAFA#10 if code size growth is anticipated; pinout and layout are identical |
| R5F10RGAAFB#10 | 48-pin LFQFP (7×7 mm, 0.5 mm pitch); 16 KB flash; same core/peripherals but fewer LCD segments (35×4 max) | Suitable for space-constrained designs where 52-pin footprint is prohibitive and LCD complexity is lower | Choose R5F10RGAAFB#10 for compact PCBs needing reduced pin count and smaller package; verify LCD segment count sufficiency |
Compared with R5F10RJAAFA#10, R5F10RJCAFA#10 offers double flash capacity in identical packaging for seamless scalability, while R5F10RGAAFB#10 trades 4 pins and LCD capability for a 30% smaller footprint-enabling denser layouts where display resolution is less demanding.
Availability
R5F10RJAAFA#10 is available at Aetrix Electronics and suitable for smart energy meters, portable medical monitors, home appliance control panels, and industrial HVAC display modules requiring stable component supply across long production lifecycles.
Supply support for R5F10RJAAFA#10 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 is designed specifically for ultra-low-power LCD-based consumer and industrial applications, integrating LCD drivers, RTC, and safety features into a single chip to minimize system cost and board area.
FAQ
What is the maximum LCD segment count supported by the R5F10RJAAFA#10?
The R5F10RJAAFA#10 supports up to 35 segments × 8 commons or 39 segments × 4 commons, enabled by its integrated LCD controller/driver with configurable waveform types (A/B), contrast adjustment (16 steps), and multiple drive methods (capacitor-split, internal boost, resistance division). This matches the 52-pin package's full I/O allocation for display interfaces.
Does the R5F10RJAAFA#10 include hardware support for functional safety standards?
Yes, the R5F10RJAAFA#10 includes multiple IEC/UL 60730-compliant safety features: flash memory CRC calculation, RAM parity error checking, RAM and SFR write protection, illegal memory access detection, clock frequency monitoring, and ADC self-test-enabling Class B certification for household and industrial appliances.
What are the operating voltage and temperature ranges for the R5F10RJAAFA#10?
The R5F10RJAAFA#10 operates from 1.6 V to 5.5 V and is rated for −40 °C to +85 °C ambient temperature (indicated by the 'A' suffix in the part number), making it suitable for consumer-grade applications including battery-powered instrumentation and home appliances.
Can the R5F10RJAAFA#10 execute code while in low-power modes?
Yes-the R5F10RJAAFA#10 supports snooze mode, allowing selected peripherals (e.g., RTC, ADC, LCD controller) to remain active while the CPU halts, enabling background operations like periodic sensor sampling or LCD refresh without full wake-up, thereby optimizing power efficiency.
How does the R5F10RJAAFA#10 handle analog reference voltages for its ADC?
The R5F10RJAAFA#10 provides dedicated AVREFP and AVREFM pins for external reference inputs, plus an internal 1.45 V reference voltage source usable across the full 1.6–5.5 V supply range. This dual-reference capability ensures consistent 10-bit ADC accuracy (2.1 µs conversion time) even with varying VDD conditions.
R5F10RJAAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/L12
- Packaging:
- Tray
- 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:
- 30
- 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:
R5F10RJAAFA#10 FAQ
1.How can I place an order for R5F10RJAAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RJAAFA#10 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 R5F10RJAAFA#10 reliable?
The price and inventory of R5F10RJAAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RJAAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F10RJAAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RJAAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RJAAFA#10?
R5F10RJAAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RJAAFA#10 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 R5F10RJAAFA#10?
For technical support, including R5F10RJAAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RJAAFA#10 requirements.
6.How does Aetrix verify that R5F10RJAAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F10RJAAFA#10 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 R5F10RJAAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F10RJAAFA#10?
All R5F10RJAAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RJAAFA#10, 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 R5F10RJAAFA#10 part is unused and in its original packaging.
Return procedure for R5F10RJAAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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