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Renesas R5F140FKAFP#30
- Part No.:
- R5F140FKAFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F140FKAFP#30.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:640
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Product details
Overview
R5F140FKAFP#30 from Renesas is a 44-pin LQFP ultra-low-power 16-bit RL78/G13A microcontroller with 384 KB code flash, 8 KB data flash, and 24 KB RAM, operating from 1.6–5.5 V at -40 to +85°C. It integrates an RL78 CPU core (3-stage pipeline), 8-channel 16-bit timer, 10-channel 8/10-bit ADC, real-time clock, and UART/I²C/CSI serial interfaces - deployed in home appliance control panels requiring low standby current and integrated timing.
For engineers reviewing the R5F140FKAFP#30 datasheet, R5F140FKAFP#30 pinout, R5F140FKAFP#30 application, or R5F140FKAFP#30 equivalent, this page delivers verified package mapping (LQFP-44, 0.8 mm pitch), confirmed pin functions per Renesas R01DS0376EJ0110 Rev.1.10, exact memory configuration (384 KB Flash / 8 KB Data Flash / 24 KB RAM), and validated industrial-grade alternatives for consumer-grade embedded control.
Technical Context
The R5F140FKAFP#30 implements the RL78 CPU core with CISC architecture, 1 MB address space, and configurable instruction execution time (0.03125 μs @ 32 MHz high-speed on-chip oscillator or 30.5 μs @ 32.768 kHz subsystem clock). It supports HALT, STOP, and SNOOZE low-power modes with 47 µA/MHz typical active current.
It features dual power domains (VDD/EVDD0, VSS/EVSS0), on-chip POR/LVD with 14-level voltage detection, and peripheral I/O redirection via PIOR register. The device includes background operation for data flash rewriting and hardware multiplier/divider supporting 16×16→32-bit signed/unsigned operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 384 KB code flash with 1 KB block size and security erase prohibition |
| Data Flash | 8 KB with 1,000,000 rewrite cycles and background operation (BGO) |
| RAM | 24 KB on-chip RAM, including areas reserved for flash library self-programming |
| Operating Voltage | 1.6–5.5 V single supply, enabling direct interface with 1.8/2.5/3.0 V peripherals |
| Temperature Range | -40 to +85°C ambient, qualified for consumer appliance applications (A-grade) |
| Low-Power Performance | 47 µA/MHz typical active current; HALT/STOP/SNOOZE modes reduce system energy use |
Pinout & Package
Package: 44-pin plastic LQFP (10 × 10 mm, 0.8-mm pitch), lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 I/O | Configurable CMOS I/O with N-ch open-drain option; supports CSI/I²C/UART functions |
| P20–P27 | Analog Input Port | 10-channel ADC inputs (ANI0–ANI7) with AVREFP/AVREFM reference pins |
| P30/P31 | RTC & Timer I/O | RTC1HZ output and TI03/TO03 timer channels; supports calendar alarm and correction |
| P70–P73 | Key Return Inputs | 4-key matrix scan inputs (KR0–KR3) with built-in key interrupt logic |
| RESET | Active-low Reset | Asynchronous reset input with internal pull-up; triggers full system initialization |
| X1/X2 | Main System Clock | Crystal oscillator inputs for 1–20 MHz operation; supports ceramic resonator or external clock |
| REGC | Regulator Decoupling | Must connect to VSS via 0.47–1 µF capacitor to stabilize internal voltage regulator |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 47 µA/MHz typical active current enables battery-powered appliance remote controls |
| On-chip debug support | Integrated ON-CHIP DEBUG via TOOL0/TOOLRxD/TOOLTxD pins eliminates external JTAG probe need |
| Flexible clock system | High-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz) plus crystal and subsystem clocks |
| Hardware BCD correction | Dedicated circuit accelerates decimal arithmetic for display-driven user interfaces |
| Peripheral I/O redirection | PIOR register enables dynamic remapping of UART/CSI/I²C functions to alternate pins |
Applications
| Home Appliance Control Panel | Smart Thermostat Interface |
|---|---|
Use Scenario: Front-panel button, LED, and LCD management in washing machines and microwaves. IC Role / Device Role / Timing Role: Primary MCU executing UI state machine, reading key returns (KR0–KR3), driving buzzer (PCLBUZ0/P31), and updating display via SPI/CSI. Use Value: Integrated 10-channel ADC reads temperature sensors; SNOOZE mode extends standby life beyond 1 year on coin cell. |
Use Scenario: Local sensor aggregation and HVAC actuator control in residential thermostats. IC Role / Device Role / Timing Role: Real-time clock (RTC) maintains calendar/alarm; UART0 communicates with HVAC controller; ADC monitors ambient and pipe temperature. Use Value: 384 KB flash hosts firmware with OTA update capability; 8 KB data flash stores calibration coefficients and usage logs without external EEPROM. |
| Industrial Sensor Node | Consumer IoT Gateway Hub |
Use Scenario: Battery-powered environmental monitor measuring temp/humidity/air quality in factory zones. IC Role / Device Role / Timing Role: Low-power sensor hub collecting data via I²C (SCLA0/SDAA0) and UART (RxD2/TxD2); RTC schedules periodic wake-ups. Use Value: 47 µA/MHz active current and STOP mode (<0.5 µA) enable multi-year deployment on AA batteries. |
Use Scenario: Central coordinator for BLE/Zigbee end-devices in smart home ecosystems. IC Role / Device Role / Timing Role: Serial array unit manages concurrent UART (LIN-bus capable), I²C, and CSI channels to bridge protocols. Use Value: Hardware multiplier accelerates encryption primitives; 24 KB RAM buffers multiple packet payloads before Wi-Fi uplink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F140FLAFP#30 | Same 44-pin LQFP package and 512 KB code flash (vs. 384 KB), identical RAM (24 KB) and data flash (8 KB) | Higher code density supports larger firmware with more features (e.g., enhanced UI graphics or protocol stacks) | Select when firmware exceeds 384 KB or future scalability is required; pinout and peripheral set are identical |
| R5F140GKAFB#30 | 48-pin LFQFP (7×7 mm, 0.5 mm pitch), same 384 KB flash/8 KB data flash/24 KB RAM, adds 4 extra I/O pins and KR4/KR5 key inputs | Enables denser PCB layouts and expanded keypad interfaces; supports additional analog inputs (ANI16/ANI17) | Choose for space-constrained designs needing higher I/O count or enhanced key matrix support |
Compared with R5F140FKAFP#30, R5F140FLAFP#30 offers +128 KB flash for feature-rich firmware without layout change, while R5F140GKAFB#30 trades larger footprint for +4 I/O and dual-key-scan capability - both retain identical peripheral IP and low-power behavior.
Availability
R5F140FKAFP#30 is available at Aetrix Electronics and suitable for home appliance control panels, smart thermostat interfaces, and industrial sensor nodes requiring stable component supply across extended production lifecycles.
Supply support for R5F140FKAFP#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/G13A product line targets cost-sensitive, ultra-low-power embedded applications in consumer appliances and industrial controls, emphasizing energy efficiency, integrated peripherals, and simplified development.
FAQ
What is the maximum operating frequency of the R5F140FKAFP#30?
The R5F140FKAFP#30 supports up to 32 MHz using its high-speed on-chip oscillator (±1.0% accuracy) or 20 MHz with external crystal (X1/X2). Its minimum instruction execution time is 0.03125 μs at 32 MHz, and it operates reliably across the full 1.6–5.5 V supply range. The R5F140FKAFP#30 does not support frequencies above 32 MHz in any clock mode.
Does the R5F140FKAFP#30 include hardware support for LIN bus communication?
Yes, the R5F140FKAFP#30 supports LIN bus communication through UART0 and UART2 channels, both explicitly documented as LIN-bus capable in the R01DS0376EJ0110 datasheet. The R5F140FKAFP#30 implements LIN physical layer timing and frame formatting in hardware, eliminating software overhead for standard LIN 2.x protocols.
How much RAM is allocated for flash self-programming in the R5F140FKAFP#30?
The R5F140FKAFP#30 uses on-chip RAM starting at address F7F00H for flash self-programming operations, as specified for R5F140xL-series devices in the Flash Self-Programming Library documentation (R20UT2944). This reserved area is part of the 24 KB total RAM and must be excluded from application use when enabling data flash rewrite functionality.
Can the R5F140FKAFP#30 operate at 1.6 V supply voltage with all peripherals enabled?
Yes, the R5F140FKAFP#30 is fully specified for operation at 1.6 V across its entire functional range, including ADC (8/10-bit resolution), real-time clock, UART, I²C, and timer modules. The datasheet confirms VDD = 1.6–5.5 V operation with no peripheral de-rating, enabling direct integration with single-cell LiFePO₄ or alkaline battery systems.
What is the purpose of the REGC pin on the R5F140FKAFP#30?
The REGC pin on the R5F140FKAFP#30 connects to an external 0.47–1 µF decoupling capacitor tied to VSS to stabilize the internal voltage regulator. This capacitor is mandatory for reliable operation - omitting it causes erratic reset behavior and clock instability. The R5F140FKAFP#30 datasheet specifies this requirement in all pin configuration diagrams and cautions sections.
R5F140FKAFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G13A
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 31
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 24K 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:
R5F140FKAFP#30 FAQ
1.How can I place an order for R5F140FKAFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F140FKAFP#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 R5F140FKAFP#30 reliable?
The price and inventory of R5F140FKAFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F140FKAFP#30 is usually 5 days.
3.What payment methods are accepted for R5F140FKAFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F140FKAFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F140FKAFP#30?
R5F140FKAFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F140FKAFP#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 R5F140FKAFP#30?
For technical support, including R5F140FKAFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F140FKAFP#30 requirements.
6.How does Aetrix verify that R5F140FKAFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F140FKAFP#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 R5F140FKAFP#30 meets industry standards.
7.What is the process for return or replacement of R5F140FKAFP#30?
All R5F140FKAFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F140FKAFP#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 R5F140FKAFP#30 part is unused and in its original packaging.
Return procedure for R5F140FKAFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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