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Renesas R5F140LKAFB#30
- Part No.:
- R5F140LKAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F140LKAFB#30.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:640
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Product details
Overview
R5F140LKAFB#30 from Renesas is a 64-pin LFQFP, 512 KB code flash, 32 KB RAM, RL78/G13A 16-bit microcontroller operating at 1.6–5.5 V with ultra-low power consumption (47 µA/MHz typ.) and industrial-grade temperature support up to +105°C. It integrates UART/LIN, I²C, CSI, 12-channel 8/10-bit ADC, RTC, and DMA for embedded control in appliance motor drives and industrial HMI panels.
For engineers reviewing the R5F140LKAFB#30 datasheet, R5F140LKAFB#30 pinout, R5F140LKAFB#30 application, or R5F140LKAFB#30 equivalent, this page delivers verified electrical specs, validated 64-pin LFQFP terminal mapping, real-world use cases in thermal management systems and smart metering, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The R5F140LKAFB#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs @ 32 MHz to 30.5 µs @ 32.768 kHz). It supports dual power domains (VDD/EVDD0) and separate ground paths (VSS/EVSS0) for noise-sensitive analog operation.
Its peripheral set includes 8-channel 16-bit timer array, 12-bit interval timer, watchdog timer, and real-time clock with calendar function. The device features background data flash rewriting (BGO), self-programming with boot swap, and on-chip debug via TOOL0/TOOLRxD/TOOLTxD pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with low gate count. |
| Flash / RAM | 512 KB code flash + 8 KB data flash + 32 KB RAM; supports field firmware updates and parameter storage without external memory. |
| Operating Voltage | 1.6–5.5 V; allows direct interface with 1.8 V, 2.5 V, and 3.3 V peripherals without level shifters. |
| Power Consumption | 47 µA/MHz (typ.); reduces battery drain in always-on industrial sensors and extends runtime in portable diagnostics tools. |
| Temp Range | −40°C to +105°C; qualified for under-hood automotive modules and factory-floor PLC I/O units. |
| ADC | 12-channel 8/10-bit A/D converter with internal 1.45 V reference and temperature sensor; enables precision thermal monitoring and analog signal acquisition. |
| Serial Interfaces | UART (LIN-bus supported), I²C (up to 10 channels), CSI (up to 8 channels); provides flexible connectivity to displays, sensors, and legacy bus networks. |
Pinout & Package
64-pin plastic LFQFP (10 × 10 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 (I/O) | Configurable CMOS I/O with N-ch open-drain option; supports key interrupt and peripheral I/O redirection via PIOR register. |
| P20–P27 | Analog Input / AVREFP/AVREFM | 12-channel analog input (ANI0–ANI7) with dedicated positive/negative reference pins for ratiometric ADC accuracy. |
| P30/P31 | RTC1HZ / INTP3/INTP4 | Real-time clock 1 Hz output and dual interrupt inputs; enables low-power wake-up and time-stamped event logging. |
| P70–P77 | Key Return / KR0–KR7 | 8-key matrix scan inputs with built-in pull-up; eliminates external resistors in keypad-based HMI designs. |
| VDD / EVDD0 | Main / Peripheral Power | Dual power supply pins enable independent noise filtering for digital core and analog/peripheral domains. |
| REGC | Regulator Capacitor | Connects to VSS via 0.47–1 µF capacitor; stabilizes internal voltage regulator for consistent analog performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables sub-µA sleep current in battery-powered remote sensors while retaining RAM and register context. |
| Background data flash rewriting (BGO) | Allows concurrent program execution and non-volatile parameter updates-critical for over-the-air firmware patches. |
| On-chip debug via TOOL0/TOOLRxD/TOOLTxD | Eliminates need for external JTAG emulator; simplifies production programming and field diagnostics. |
| Programmable clock/buzzer outputs (PCLBUZ0/PCLBUZ1) | Generates precise audio tones or system clocks (256 Hz–10 MHz) without external oscillators or drivers. |
| Peripheral I/O redirection (PIOR) | Reassigns fixed peripheral functions (e.g., UART, I²C) to alternate pins-increases PCB layout flexibility and reuse. |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Smart washing machine main controller managing motor drive, water valve sequencing, and display interface. IC Role / Device Role / Timing Role: Primary MCU executing real-time motor commutation, ADC-based load sensing, and LIN-bus communication with door lock module. Use Value: 512 KB flash stores multiple motor profiles; 12-channel ADC monitors current, temperature, and vibration; 47 µA/MHz operation extends standby battery life. | Use Scenario: Wireless temperature/humidity node in HVAC duct monitoring with local alarm and BLE gateway interface. IC Role / Device Role / Timing Role: System-on-chip sensor aggregator with RTC timestamping, BGO-based log buffering, and UART-to-BLE bridge firmware. Use Value: −40°C to +105°C rating ensures reliability inside hot air ducts; 8 KB data flash retains 30 days of hourly logs; dual power domains isolate RF noise from ADC readings. |
| Smart Energy Metering | Factory Floor HMI Panel |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, pulse counting, and RS-485 communication. IC Role / Device Role / Timing Role: Metering controller performing isolation-safe current sampling, energy calculation, and secure firmware updates via RS-485. Use Value: On-chip LVD detects brown-out events during grid fluctuations; self-programming with flash shield window prevents unauthorized firmware modification. | Use Scenario: Touchless operator panel for CNC machine with LED status indicators, emergency stop logic, and CAN-linked motion controller. IC Role / Device Role / Timing Role: Local safety monitor handling E-stop debouncing, LED PWM dimming, and CAN message filtering before forwarding to main PLC. Use Value: 8-channel 16-bit timer generates precise LED dimming waveforms; key return (KR0–KR7) supports glove-compatible membrane keypad; 64-pin package accommodates isolated CAN transceiver routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F140LLAFB#30 | Same 64-pin LFQFP package, identical 512 KB flash/32 KB RAM, but rated for consumer temp range (−40°C to +85°C). | Not qualified for industrial environments requiring >85°C ambient operation. | Select R5F140LLAFB#30 only for cost-sensitive consumer appliances with controlled thermal environments. |
| R5F140LKGFB#30 | Same 512 KB/32 KB configuration but industrial-grade (−40°C to +105°C) in 64-pin LFQFP with G-suffix marking. | No functional difference; differs only in ordering code suffix indicating same spec and qualification. | R5F140LKGFB#30 is a direct form-fit-function match-use when sourcing requires explicit G-suffix documentation for industrial compliance audits. |
Compared with R5F140LKAFB#30, R5F140LLAFB#30 lacks extended temperature qualification, limiting deployment in uncontrolled industrial settings, while R5F140LKGFB#30 offers identical electrical and thermal specs with formal industrial labeling-making it suitable for traceability-critical OEM programs.
Availability
R5F140LKAFB#30 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, smart energy metering, factory floor HMI panels, and thermal management systems requiring stable component supply across multi-year production cycles.
Supply support for R5F140LKAFB#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13A product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, thermally demanding embedded applications-balancing performance, integration, and energy efficiency in compact packages.
FAQ
What is the maximum operating frequency and corresponding supply voltage range for the R5F140LKAFB#30?
The R5F140LKAFB#30 supports up to 32 MHz using its high-speed on-chip oscillator at VDD = 2.7–5.5 V. When using the external crystal (X1), max frequency is 20 MHz at VDD = 2.7–5.5 V or 16 MHz at VDD = 2.4–5.5 V. The device maintains full functionality down to 1.6 V, enabling brown-out tolerant operation in battery-backed systems.
Does the R5F140LKAFB#30 include hardware support for LIN bus communication?
Yes, the R5F140LKAFB#30 supports LIN-bus protocol through its UART peripheral-specifically UART0 and UART2 channels include LINSEL functionality for automatic sync field detection and break signal generation. This enables direct connection to LIN transceivers without external protocol assist hardware.
How many analog input channels does the R5F140LKAFB#30 provide, and what reference options are available?
The R5F140LKAFB#30 provides 12 analog input channels (ANI0–ANI7, ANI16–ANI20). It supports external references via AVREFP/AVREFM pins and includes an internal 1.45 V reference usable in HS mode. The ADC operates across the full 1.6–5.5 V VDD range with 8/10-bit resolution selectable per channel.
What debug interface does the R5F140LKAFB#30 use, and are external debug probes required?
The R5F140LKAFB#30 uses an on-chip debug interface accessible via TOOL0 (pin P40), TOOLRxD (P11), and TOOLTxD (P12). No external JTAG probe is required-standard UART-to-USB adapters suffice for programming and real-time debugging, reducing development tooling cost and footprint.
Is the R5F140LKAFB#30 pin-compatible with other RL78/G13A variants such as R5F140GKAFB#30 or R5F140FKAFP#30?
No-R5F140LKAFB#30 is a 64-pin LFQFP device, while R5F140GKAFB#30 is 48-pin LFQFP and R5F140FKAFP#30 is 44-pin LQFP. Pin count, pitch (0.5 mm vs. 0.8 mm), and physical dimensions differ significantly; PCB layout and footprint are not interchangeable between these variants.
R5F140LKAFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 48
- 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 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F140LKAFB#30 FAQ
1.How can I place an order for R5F140LKAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F140LKAFB#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 R5F140LKAFB#30 reliable?
The price and inventory of R5F140LKAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F140LKAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F140LKAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F140LKAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F140LKAFB#30?
R5F140LKAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F140LKAFB#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 R5F140LKAFB#30?
For technical support, including R5F140LKAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F140LKAFB#30 requirements.
6.How does Aetrix verify that R5F140LKAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F140LKAFB#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 R5F140LKAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F140LKAFB#30?
All R5F140LKAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F140LKAFB#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 R5F140LKAFB#30 part is unused and in its original packaging.
Return procedure for R5F140LKAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F140LKAFB#30 Tags
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