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Renesas R5F10RJAAFA#30
- Part No.:
- R5F10RJAAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F10RJAAFA#30.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,043
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Product details
Overview
R5F10RJAAFA#30 from Renesas is a 52-pin LQFP-packaged 16-bit RL78/L12 microcontroller with 16 KB flash, 2 KB data flash, 1 KB RAM, integrated LCD controller/driver (up to 35 seg × 8 com), and ultra-low-power operation (62.5 µA/MHz active, 0.64 µA in RTC+LVD halt mode). It targets battery-powered LCD display applications such as smart meters, thermostats, and portable medical devices.
For engineers reviewing the R5F10RJAAFA#30 datasheet, R5F10RJAAFA#30 pinout, R5F10RJAAFA#30 application, or R5F10RJAAFA#30 equivalent, key selection criteria include its 52-pin LQFP-0.65 mm pitch package, on-chip LCD drive capability with capacitor split/internal boost methods, 10-bit ADC (10 channels), and IEC/UL 60730 safety features for Class B compliance.
Technical Context
The R5F10RJAAFA#30 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and 86% of instructions executed in 1–2 clock cycles. It supports dual-clock domains: high-speed on-chip oscillator (24 MHz ±1% over voltage/temperature) and subsystem clock (32.768 kHz crystal or internal 15 kHz oscillator).
Its peripheral set includes an 8-channel timer array unit, UART, two CSI interfaces (SPI-compatible), I²C, DMA (2 channels), and a dedicated LCD controller supporting waveform A/B, contrast adjustment (16 steps), blinking, and three drive methods - all configurable without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU delivering 31 DMIPS at 24 MHz; enables real-time control with low code footprint |
| Flash / Data Flash / RAM | 16 KB code flash, 2 KB data flash (1M erase cycles), 1 KB RAM - sufficient for firmware + parameter storage in metering applications |
| Power Consumption | 62.5 µA/MHz active; 0.64 µA in Halt mode (RTC + LVD enabled) - extends battery life in always-on LCD systems |
| LCD Drive Capability | Up to 35 segments × 8 commons; supports capacitor split, internal voltage boost, and resistance division methods - eliminates need for external LCD bias IC |
| Analog Peripherals | 10-bit ADC with 10 input channels, 2.1 µs conversion time, internal 1.45 V reference, and on-chip temperature sensor - enables local sensing without external signal conditioning |
| Safety Features | CRC calculation for flash, RAM parity check, SFR write protection, illegal memory access detection - meets IEC/UL 60730 Class B requirements |
| Operating Range | −40°C to +85°C, 1.6 V to 5.5 V supply - suitable for consumer-grade industrial environments with wide voltage tolerance |
Pinout & Package
Package: 52-pin plastic LQFP (10 × 10 mm, 0.65 mm pitch), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/TI07/TO07/SEG28 | Serial Clock Input / Timer Input/Output / LCD Segment | Shared function pin enabling SPI communication, timer capture/compare, and LCD segment drive - reduces external component count |
| P12/SO00/TxD0/TOOLTxD/SEG30 | Serial Output / UART Transmit / Debug TX / LCD Segment | Combines UART output, debug interface, and LCD segment drive - simplifies PCB routing in space-constrained designs |
| P30/TI01/TO01/KR3/SEG19 | Timer Input/Output / Key Return / LCD Segment | Supports capacitive touch key scanning (KR3) and LCD segment output simultaneously - enables integrated UI with minimal pins |
| P60/SCLA0/SEG21 | I²C Clock / LCD Segment | Dual-role pin for I²C bus clock and LCD segment - allows shared trace routing and saves dedicated segment lines |
| VL1–VL4 | LCD Power Supply Outputs | Four independent LCD voltage outputs support multi-voltage LCD panels and adjustable contrast without external regulators |
| REGC | Voltage Regulator Decoupling | Requires 0.47–1 µF capacitor to VSS for stable internal regulator operation - critical for LCD contrast stability and low-noise analog performance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Halt Mode | 0.64 µA with RTC and LVD active - enables decade-long battery life in maintenance-free LCD displays |
| Integrated LCD Controller | Configurable drive method (capacitor split/internal boost/resistance division) and 16-step contrast control - eliminates external LCD bias generator |
| On-Chip Debug Interface | 1-wire on-chip debug via TOOL0/P40 - enables in-system programming and real-time debugging without JTAG header |
| Self-Programming Flash | Background operation with flash shield window - supports field firmware updates without halting application execution |
| Hardware CRC Engine | Dedicated CRC calculation unit for flash integrity checking - accelerates IEC 60730 Class B self-test routines by >10× vs. software CRC |
| 5V-Tolerant GPIO | All general-purpose I/O pins tolerate 5 V - simplifies interface with legacy sensors, displays, and logic without level shifters |
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 controller executing metrology firmware, driving 4-line LCD (32 seg × 4 com), managing real-time calendar via RTC, and logging events to data flash. Use Value: Integrated LCD driver and 0.64 µA Halt mode enable 10+ year battery life; data flash endurance (1M cycles) supports daily log writes for >27 years. |
Use Scenario: Wireless HVAC controller with backlit LCD, temperature/humidity sensing, and schedule-based relay control. IC Role / Device Role / Timing Role: Central MCU handling sensor ADC reads, PID loop computation, LCD refresh, button/key scan (KR0–KR3), and wireless module UART interface. Use Value: 10-bit ADC with internal reference ensures accurate sensor readings; 5V-tolerant I/O directly drives relays and communicates with 3.3 V/5 V wireless modules. |
| Portable Medical Monitor | Industrial Panel Display |
|
Use Scenario: Handheld pulse oximeter with OLED/LCD display, SpO₂ sensor interface, and audible alarm. IC Role / Device Role / Timing Role: Real-time signal processor acquiring analog sensor data, computing saturation values, updating LCD, and generating buzzer tones via PCLBUZ0/P140. Use Value: On-chip buzzer output eliminates external driver; low-power modes extend operation between charges; safety features satisfy IEC 60601-1 essential performance requirements. |
Use Scenario: DIN-rail mounted HMI displaying machine status, alarms, and configuration menus in factory automation. IC Role / Device Role / Timing Role: Dedicated display controller interfacing with 35-segment LCD, reading inputs from rotary encoders and push buttons (KR0–KR3), and communicating via UART/I²C to PLC. Use Value: 35 × 8 com LCD support enables complex status glyphs; wide 1.6–5.5 V operation accommodates unregulated 3.3 V or 5 V industrial rails; robust ESD tolerance ensures reliability in noisy environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RJCAFA#30 | 32 KB flash, same 52-pin LQFP package, identical peripherals and power specs | Required when firmware size exceeds 16 KB or long-term data logging needs >2 KB data flash | Select R5F10RJCAFA#30 if future firmware expansion or enhanced event logging is anticipated |
| R5F10RFCAFP#30 | 44-pin LQFP (10 × 10 mm, 0.8 mm pitch), 16 KB flash, same core/peripherals but fewer LCD segments (22 seg × 4 com) | Suitable for simpler 2-line LCD interfaces where board space allows larger pitch | Choose R5F10RFCAFP#30 only if existing layout uses 0.8 mm pitch and LCD segment count ≤22 |
Compared with R5F10RJAAFA#30, R5F10RJCAFA#30 offers double flash capacity without changing footprint or power behavior, while R5F10RFCAFP#30 trades LCD drive capability and pin density for easier hand-soldering - neither is pin-compatible due to different pin counts and pitches.
Availability
R5F10RJAAFA#30 is available at Aetrix Electronics and suitable for smart energy meters, programmable thermostats, and portable medical monitors requiring stable component supply, long-lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F10RJAAFA#30 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 applications, integrating display drivers, safety features, and energy-efficient processing to replace discrete display controllers and MCUs in cost-sensitive consumer and industrial devices.
FAQ
What is the maximum LCD segment count supported by the R5F10RJAAFA#30?
The R5F10RJAAFA#30 supports up to 35 segments × 8 commons (or 39 segments × 4 commons) using its integrated LCD controller/driver. This configuration is confirmed in the RL78/L12 datasheet (R01DS0157EJ0223, page 16) and enables complex alphanumeric and icon-based displays without external drivers. The R5F10RJAAFA#30 achieves this using internal voltage boosting or capacitor-split methods, eliminating external bias circuitry.
Does the R5F10RJAAFA#30 support hardware CRC for flash memory verification?
Yes, the R5F10RJAAFA#30 includes a dedicated hardware CRC calculation unit for code flash memory, as specified in the safety features section of the RL78/L12 datasheet (R01DS0157EJ0223, page 1). This enables fast, deterministic flash integrity checks required for IEC/UL 60730 Class B compliance - significantly reducing self-test time compared to software-based CRC implementations in the R5F10RJAAFA#30 firmware.
What are the operating voltage and temperature ranges for the R5F10RJAAFA#30?
The R5F10RJAAFA#30 operates from 1.6 V to 5.5 V and across −40°C to +85°C ambient temperature, per its "A" grade designation (consumer applications). These specifications are defined in the RL78/L12 datasheet (R01DS0157EJ0223, pages 1 and 18) and validated over full voltage/temperature corners - ensuring reliable operation in battery-powered and unregulated industrial environments where the R5F10RJAAFA#30 is deployed.
Can the R5F10RJAAFA#30 drive a 5 V LCD panel directly?
Yes, the R5F10RJAAFA#30's VL1–VL4 LCD power supply outputs support up to 5.5 V, and its LCD segment/common drivers are rated for 5 V operation. When using the internal voltage boost method or external resistor divider, the R5F10RJAAFA#30 can directly drive standard 5 V LCD panels without level-shifting components - a capability confirmed in the "LCD Controller/Driver" section (page 1) of the RL78/L12 datasheet.
How many ADC channels does the R5F10RJAAFA#30 provide, and what is their resolution?
The R5F10RJAAFA#30 integrates a 10-bit successive approximation ADC with up to 10 input channels (ANI0–ANI23, with channel mapping dependent on pinout), achieving 2.1 µs conversion time and supporting 1.6 V minimum supply. This ADC capability is documented in the "Rich Analog" section (page 1) of the RL78/L12 datasheet (R01DS0157EJ0223) and enables precise sensor interfacing in applications where the R5F10RJAAFA#30 serves as the primary acquisition node.
R5F10RJAAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/L12
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 37
- 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#30 FAQ
1.How can I place an order for R5F10RJAAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RJAAFA#30 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#30 reliable?
The price and inventory of R5F10RJAAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RJAAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F10RJAAFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RJAAFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RJAAFA#30?
R5F10RJAAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RJAAFA#30 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#30?
For technical support, including R5F10RJAAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RJAAFA#30 requirements.
6.How does Aetrix verify that R5F10RJAAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F10RJAAFA#30 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#30 meets industry standards.
7.What is the process for return or replacement of R5F10RJAAFA#30?
All R5F10RJAAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RJAAFA#30, 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#30 part is unused and in its original packaging.
Return procedure for R5F10RJAAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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