Renesas R5F10RF8AFP#30
- Part No.:
- R5F10RF8AFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F10RF8AFP#30.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,523
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Product details
Overview
R5F10RF8AFP#30 from Renesas is an 8 KB flash, 1 KB RAM, 44-pin LQFP RL78/L12 microcontroller optimized for ultra-low-power LCD-based applications. It delivers 31 DMIPS at 24 MHz, operates from 1.6 V to 5.5 V, consumes just 62.5 µA/MHz active and 0.64 µA in RTC+LVD halt mode, and integrates an on-chip LCD controller supporting up to 39 seg × 4 com.
For engineers reviewing the R5F10RF8AFP#30 datasheet, R5F10RF8AFP#30 pinout, R5F10RF8AFP#30 application, or R5F10RF8AFP#30 equivalent, key selection criteria include its 44-pin LQFP package, 8 KB code flash with 2 KB data flash, integrated LCD driver with capacitor-split operation, and IEC 60730-compliant safety features for appliance control.
Technical Context
The R5F10RF8AFP#30 implements a 16-bit RL78 CISC Harvard CPU core with 3-stage pipeline, enabling 86% of instructions in 1–2 clock cycles. It supports dual-clock domains: a high-speed on-chip oscillator (24 MHz ±1% over voltage/temperature) and a 32.768 kHz subsystem clock for RTC.
Its peripheral set includes an 8-channel timer array, 10-bit ADC with 2.1 µs conversion and internal 1.45 V reference, two CSI interfaces (SPI-compatible), one I²C, one UART, DMA controller, and full-featured LCD controller with contrast adjustment, blinking, and waveform A/B support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU delivering 31 DMIPS at 24 MHz |
| Flash / Data Flash | 8 KB code flash + 2 KB background-operating data flash (1M erase cycles) |
| RAM | 1 KB SRAM with backup retention in all low-power modes |
| Power Consumption | 62.5 µA/MHz active; 0.64 µA in RTC+LVD halt mode |
| LCD Support | Up to 39 segment × 4 common outputs; capacitor-split, internal boost, or resistor-divider drive methods |
| Analog Peripherals | 10-bit ADC with 10 channels, 2.1 µs conversion, 1.45 V internal reference, and on-chip temperature sensor |
| Safety Features | CRC calculation, RAM parity check, SFR write protection, illegal memory access detection, and clock frequency monitor |
Pinout & Package
Package: 44-pin plastic LQFP (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, consumer-grade (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/TI07/TO07/KR2/SEG28 | Serial clock / Timer input/output / Key return / LCD segment | Multi-function pin supporting SPI communication, timer I/O, keypad scanning, and LCD drive - configurable via PIOR register |
| P11/SI00/RxD0/TOOLRxD/KR1/SEG29 | Serial data in / UART receive / debug interface / key return / LCD segment | Enables UART communication, on-chip debug, and keypad sensing while driving LCD segments without external components |
| P12/SO00/TxD0/TOOLTxD/KR0/SEG30 | Serial data out / UART transmit / debug interface / key return / LCD segment | Supports full-duplex UART, debug output, and LCD segment drive simultaneously in shared-function mode |
| P140/TO00/PCLBUZ0/KR3/SEG27 | Timer output / programmable buzzer / key return / LCD segment | Generates precise buzzer tones or PWM signals while serving as LCD segment driver or keypad scan line |
| P121/X1 & P122/X2 | Crystal oscillator inputs | Supports external 1–20 MHz crystal for main system clock with high accuracy and stability |
| REGC | Voltage regulator decoupling | Requires 0.47–1 µF capacitor to VSS to stabilize internal LDO for LCD and analog circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.64 µA RTC+LVD halt mode enables multi-year battery life in portable LCD meters and thermostats |
| Integrated LCD controller/driver | Eliminates external LCD bias IC and reduces BOM cost by supporting 39×4 segment drive with software-adjustable contrast and blink |
| IEC 60730 Class B compliance | On-chip CRC, RAM parity, and clock monitoring enable certified safety-critical firmware execution without external watchdog |
| Flexible clock architecture | Switchable between 24 MHz on-chip oscillator (±1%), external crystal, or 32.768 kHz subclock - no external timing components required |
| Peripheral I/O redirection (PIOR) | Allows dynamic remapping of functions like UART, CSI, and timers to alternate pins - simplifies PCB layout and design reuse |
Applications
| Smart Thermostats | Portable Blood Glucose Meters |
|---|---|
Use Scenario: Battery-powered HVAC control unit with 4-digit LCD display, temperature sensing, and button interface. IC Role / Device Role / Timing Role: Main system controller executing PID algorithm, driving 32-segment LCD, scanning 4-key keypad, and managing low-power sleep/wake cycles. Use Value: 0.64 µA RTC+LVD halt mode extends CR2032 battery life beyond 5 years; integrated LCD driver eliminates 3 external bias ICs. | Use Scenario: Handheld medical device displaying glucose readings, storing test history, and communicating via UART to smartphone app. IC Role / Device Role / Timing Role: Primary MCU handling ADC sampling, EEPROM logging, LCD refresh, and serial data transmission. Use Value: On-chip 10-bit ADC with 1.45 V reference ensures ±1.5% glucose measurement accuracy; 2 KB data flash enables 500+ test records with wear leveling. |
| Gas Leak Detectors | Industrial Panel Meters |
Use Scenario: Fixed-mount gas sensor with LCD readout, audible alarm, and fault indication LEDs. IC Role / Device Role / Timing Role: Real-time sensor fusion processor running gas concentration algorithms, driving 28-segment LCD, and generating buzzer alerts via PCLBUZ0. Use Value: Integrated PCLBUZ0 output drives piezo transducer directly at 2–4 kHz; safety features satisfy UL 60730 requirements for self-test and fault detection. | Use Scenario: DIN-rail mounted meter displaying voltage/current/power with 4-line alphanumeric LCD and RS-485 interface. IC Role / Device Role / Timing Role: Embedded controller managing Modbus RTU over UART, updating LCD every 200 ms, and performing RMS calculations on ADC samples. Use Value: 31 DMIPS performance handles floating-point math and protocol stack; 44-pin LQFP provides sufficient GPIO for LED indicators, relay drivers, and isolated UART. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10RFAAFP#30 | 16 KB flash, same 44-pin LQFP package, identical peripherals and power specs | Required when firmware exceeds 8 KB or future OTA updates demand headroom | Select for designs needing >8 KB code space while retaining identical pinout and layout |
| R5F10RG8AFB#30 | 48-pin LFQFP (7×7 mm, 0.5 mm pitch), same 8 KB flash, adds 4 extra GPIO and 1 additional ADC channel | Suitable when more I/O is needed for expanded sensor arrays or relay banks | Choose only if board redesign accommodates smaller pitch and higher pin count |
Compared with R5F10RFAAFP#30, the R5F10RF8AFP#30 trades flash capacity for cost-sensitive volume production; versus R5F10RG8AFB#30, it offers proven 44-pin LQFP manufacturability at the expense of I/O scalability.
Availability
R5F10RF8AFP#30 is available at Aetrix Electronics and suitable for smart thermostats, portable medical devices, gas detectors, and industrial panel meters requiring stable component supply across multi-year production cycles.
Supply support for R5F10RF8AFP#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/L12 product line targets ultra-low-power LCD-based applications such as home appliances, medical devices, and industrial HMIs, combining integrated LCD driving, safety certification, and sub-µA standby operation.
FAQ
What is the maximum operating frequency and core performance of the R5F10RF8AFP#30?
The R5F10RF8AFP#30 operates at up to 24 MHz using its high-speed on-chip oscillator and delivers 31 DMIPS. Its 16-bit RL78 CPU core executes 86% of instructions in 1–2 clock cycles, with hardware multiply and MAC units enabling efficient signal processing in battery-powered LCD applications.
Does the R5F10RF8AFP#30 support IEC 60730 or UL 60730 compliance for safety-critical firmware?
Yes, the R5F10RF8AFP#30 includes dedicated safety features required for IEC/UL 60730 Class B compliance: flash memory CRC calculation, RAM parity error checking, SFR write protection, illegal memory access detection, and clock frequency monitoring - all implemented in hardware without external components.
What LCD configurations does the R5F10RF8AFP#30 support, and how many segments can it drive?
The R5F10RF8AFP#30 supports three LCD drive methods: capacitor-split, internal voltage boost, and external resistor-division. In its 44-pin LQFP configuration, it drives up to 39 segments × 4 commons (or 35 × 8) - sufficient for 4-digit numeric displays with status icons and bar graphs in thermostats and meters.
What are the power supply requirements and low-power modes available on the R5F10RF8AFP#30?
The R5F10RF8AFP#30 operates from 1.6 V to 5.5 V and offers multiple low-power states: Stop mode (0.23 µA RAM-retained), Halt mode (0.64 µA with RTC + LVD active), and Snooze mode for selective peripheral wake-up. Its 62.5 µA/MHz active current enables extended runtime in coin-cell-powered devices.
Can the R5F10RF8AFP#30 be used with external crystals, and what clock sources are available?
Yes, the R5F10RF8AFP#30 supports external crystals on X1/X2 (1–20 MHz for main clock) and XT1/XT2 (32.768 kHz for RTC). It also includes a factory-trimmed 24 MHz on-chip oscillator (±1% over voltage/temperature), eliminating the need for external timing components in most cost-sensitive designs.
R5F10RF8AFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-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:
- 40
- 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 7x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10RF8AFP#30 FAQ
1.How can I place an order for R5F10RF8AFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10RF8AFP#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 R5F10RF8AFP#30 reliable?
The price and inventory of R5F10RF8AFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10RF8AFP#30 is usually 5 days.
3.What payment methods are accepted for R5F10RF8AFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10RF8AFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10RF8AFP#30?
R5F10RF8AFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10RF8AFP#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 R5F10RF8AFP#30?
For technical support, including R5F10RF8AFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10RF8AFP#30 requirements.
6.How does Aetrix verify that R5F10RF8AFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F10RF8AFP#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 R5F10RF8AFP#30 meets industry standards.
7.What is the process for return or replacement of R5F10RF8AFP#30?
All R5F10RF8AFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10RF8AFP#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 R5F10RF8AFP#30 part is unused and in its original packaging.
Return procedure for R5F10RF8AFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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