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Renesas R5F140LKGFB#30
- Part No.:
- R5F140LKGFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F140LKGFB#30.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:640
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Product details
Overview
R5F140LKGFB#30 from Renesas is a 64-pin LFQFP, 512 KB code flash, 32 KB RAM, industrial-grade RL78/G13A microcontroller operating from -40°C to +105°C with ultra-low 47 µA/MHz active current, 16-bit timer array (12 channels), and integrated RTC-used in motor control subsystems of HVAC controllers.
For engineers reviewing the R5F140LKGFB#30 datasheet, R5F140LKGFB#30 pinout, R5F140LKGFB#30 application, or R5F140LKGFB#30 equivalent, key selection criteria include industrial temperature rating, 64-pin LFQFP package compatibility, 512 KB flash with data flash self-programming, and dual UART/LIN support for embedded appliance communication stacks.
Technical Context
The R5F140LKGFB#30 implements the RL78 CPU core with 3-stage CISC pipeline, supporting high-speed on-chip oscillator (up to 32 MHz ±1.0%) and low-power STOP/HALT/SNOOZE modes. It integrates dual serial array units enabling concurrent UART0/UART1/UART2 (LIN-capable) operation.
Its peripheral set includes 12-channel 16-bit timer array with PWM output capability, 12-bit interval timer, real-time clock with calendar and alarm, and 12-channel 10-bit A/D converter with internal temperature sensor and 1.45 V reference-configured via dedicated SFRs without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing for real-time motor commutation loops. |
| Flash / RAM | 512 KB code flash + 8 KB data flash + 32 KB RAM; supports background data flash rewrite during program execution. |
| Operating Temp | -40°C to +105°C; qualified for industrial ambient conditions in factory automation and power supply control. |
| Power Consumption | 47 µA/MHz (typ.); reduces thermal load and extends battery life in always-on monitoring nodes. |
| A/D Converter | 12-channel 10-bit ADC with internal 1.45 V reference and temperature sensor; eliminates need for external calibration components. |
| Serial Interfaces | 3 UART (1 LIN-capable), 5–10 I²C, 4–8 CSI channels; enables multi-protocol sensor and actuator connectivity in single-chip designs. |
| Timers | 12-channel 16-bit timer array + 12-bit interval timer + RTC + watchdog; supports precise PWM generation and time-stamped event logging. |
Pinout & Package
64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), industrial-grade packaging with EVDD0/EVSS0 separation for noise-sensitive analog and digital domains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20–P27 | Analog input (ANI0–ANI7) | 10-bit ADC inputs with AVREFP/AVREFM bias; supports direct connection to thermistors and voltage dividers. |
| P30/P31 | RTC1HZ / INTP3–INTP4 | Real-time clock 1 Hz output and interrupt inputs; enables low-power wake-up and time-synchronized sampling. |
| P70–P77 | Key return (KR0–KR7) | Dedicated keypad scan inputs with internal pull-down; reduces BOM count in HMI front-ends. |
| P121/P122 | X1/X2 (main crystal) | Supports 1–20 MHz crystal; provides stable clock source for UART baud rate accuracy and PWM jitter control. |
| VDD / EVDD0 | Power supply rails | Separate analog/digital supplies enable clean ADC conversion and reduce coupling noise in mixed-signal systems. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP modes | Reduces system standby current to sub-µA levels while preserving RAM and register state for instant wake-up. |
| Data flash BGO (Background Operation) | Allows full CPU execution from code flash during data flash rewrites-critical for field firmware updates without service interruption. |
| Peripheral I/O redirection (PIOR) | Enables dynamic remapping of UART, I²C, and timer pins to alternate ports-simplifies PCB layout and supports multiple board revisions. |
| Integrated LIN transceiver support | UART2 with LINSEL pin enables ISO 17987-compliant communication using only external passive components (resistor/capacitor). |
| On-chip debug interface | Single-pin TOOL0 interface supports full debugging and programming-eliminates need for JTAG header and reduces board space. |
Applications
| Motor Control Subsystem | HVAC System Controller |
|---|---|
Use Scenario: Closed-loop fan speed regulation in commercial air handlers using hall-effect rotor feedback. IC Role / Device Role / Timing Role: Primary MCU executing PID loop at 10 kHz, driving 3-phase gate drivers via PWM outputs, and managing CAN/LIN gateway functions. Use Value: 12-channel timer array delivers synchronized 3-phase PWM with dead-time insertion; 512 KB flash hosts dual firmware images for safe OTA updates. | Use Scenario: Central controller coordinating zone dampers, compressor staging, and indoor air quality sensors in smart building systems. IC Role / Device Role / Timing Role: System orchestrator interfacing with RS-485 Modbus RTU fieldbus, local I²C temperature/humidity sensors, and relay driver ICs. Use Value: Dual UARTs handle simultaneous Modbus master/slave roles; 10-bit ADC reads 12 analog sensor inputs without external multiplexer. |
| Industrial Power Supply Monitor | Programmable Logic Relay |
Use Scenario: Real-time monitoring of AC input voltage, DC bus ripple, and thermal shutdown thresholds in DIN-rail mounted PSUs. IC Role / Device Role / Timing Role: Safety-critical supervisor performing periodic ADC sampling, LVD-triggered fault response, and isolated communication via UART-to-optocoupler interface. Use Value: On-chip voltage detector with 14 selectable thresholds enables precise brown-out detection; 105°C rating ensures reliability near heatsinks. | Use Scenario: Replacement for electromechanical relays in machine tool control panels requiring configurable logic sequences and status LED feedback. IC Role / Device Role / Timing Role: Standalone programmable controller executing ladder logic via RL78's efficient instruction set, driving 8 N-ch open-drain outputs and reading 16-key matrix inputs. Use Value: KR0–KR7 key return inputs eliminate external scan circuitry; 64-pin package accommodates all I/O without expansion modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F140LLGFB#30 | Same 64-pin LFQFP package, identical 512 KB flash/32 KB RAM, but rated for consumer temp range (-40°C to +85°C). | Lacks industrial temperature qualification; unsuitable for environments exceeding 85°C ambient. | Select R5F140LKGFB#30 when operating above 85°C ambient or requiring extended thermal reliability validation. |
| R5F140PKGFB#30 | 100-pin LFQFP variant with same core, memory, and peripherals-but adds 4 extra UARTs, 8 more ADC channels, and additional timer/IO resources. | Targets higher I/O density applications like multi-zone HVAC or complex PLCs where pin count exceeds 64. | Choose R5F140PKGFB#30 only if design requires >58 GPIO, >12 ADC inputs, or >3 UART interfaces beyond R5F140LKGFB#30 capability. |
Compared with R5F140LLGFB#30, the R5F140LKGFB#30 provides guaranteed operation up to +105°C-critical for under-hood or enclosed industrial enclosures-while matching flash, RAM, and peripheral count; versus R5F140PKGFB#30, it offers identical functionality in a smaller, lower-cost 64-pin footprint ideal for cost- and space-constrained designs.
Availability
R5F140LKGFB#30 is available at Aetrix Electronics and suitable for HVAC system controllers, industrial motor drives, and programmable logic relays requiring stable component supply across extended product lifecycles.
Supply support for R5F140LKGFB#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 delivers ultra-low-power, high-integration MCUs optimized for cost-sensitive industrial and consumer appliances requiring robust real-time control and long-term supply stability.
FAQ
What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F140LKGFB#30?
The R5F140LKGFB#30 features a high-speed on-chip oscillator adjustable from 1 MHz to 32 MHz with ±1.0% accuracy across VDD = 1.6–5.5 V and TA = -40°C to +85°C. This oscillator serves as the primary clock source for the RL78 core and peripherals, eliminating external crystal requirements in many cost-sensitive applications while maintaining UART baud rate integrity.
Does R5F140LKGFB#30 support background data flash rewriting during program execution?
Yes, the R5F140LKGFB#30 supports Background Operation (BGO) for data flash memory. Instructions can be executed from code flash while simultaneously rewriting the 8 KB data flash-enabling seamless firmware parameter updates or logging without halting real-time control tasks. The flash library uses RAM starting at address F7F00H for this operation.
How many analog input channels does R5F140LKGFB#30 provide, and what reference options are available?
The R5F140LKGFB#30 provides 12 analog input channels (ANI0–ANI7, ANI16–ANI19) with 10-bit resolution. It supports internal 1.45 V reference voltage and external references via AVREFP/AVREFM pins. The internal reference is selectable only in HS (high-speed main) mode and enables accurate temperature sensing and sensor signal conditioning without external voltage references.
What is the I/O configuration and key-return capability of R5F140LKGFB#30?
The R5F140LKGFB#30 offers 58 total I/O pins in its 64-pin LFQFP package, including 48 CMOS I/O, 5 CMOS inputs, and 4 N-ch open-drain I/O (6 V tolerant). It integrates 8 dedicated key-return inputs (KR0–KR7) on Port 7, enabling direct matrix keypad scanning with internal pull-down resistors-reducing external component count in HMI applications.
Is R5F140LKGFB#30 pin-compatible with other RL78/G13A variants such as R5F140LLGFB#30?
Yes, the R5F140LKGFB#30 is pin-compatible with R5F140LLGFB#30-they share identical 64-pin LFQFP (FB) packaging, pinout, and electrical characteristics. The sole functional difference is the operating temperature grade: R5F140LKGFB#30 is rated for -40°C to +105°C (industrial), while R5F140LLGFB#30 is rated for -40°C to +85°C (consumer). No PCB changes are required for substitution within thermal limits.
R5F140LKGFB#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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F140LKGFB#30 FAQ
1.How can I place an order for R5F140LKGFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F140LKGFB#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 R5F140LKGFB#30 reliable?
The price and inventory of R5F140LKGFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F140LKGFB#30 is usually 5 days.
3.What payment methods are accepted for R5F140LKGFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F140LKGFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F140LKGFB#30?
R5F140LKGFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F140LKGFB#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 R5F140LKGFB#30?
For technical support, including R5F140LKGFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F140LKGFB#30 requirements.
6.How does Aetrix verify that R5F140LKGFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F140LKGFB#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 R5F140LKGFB#30 meets industry standards.
7.What is the process for return or replacement of R5F140LKGFB#30?
All R5F140LKGFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F140LKGFB#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 R5F140LKGFB#30 part is unused and in its original packaging.
Return procedure for R5F140LKGFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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