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Renesas R4F24275NFQU
- Part No.:
- R4F24275NFQU
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R4F24275NFQU.pdf
- Description:
- 16BIT MCU H8S/2427 ROM384K/RAM48
- Quantity:
- Payment:
- Shipping:
Inventory:4,192
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Product details
Overview
R4F24275NFQU from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2400 Series, designed for embedded control applications requiring integrated peripherals, deterministic real-time response, and industrial-grade reliability. It features 512 KB on-chip Flash memory, 32 KB RAM, a 32 MHz max CPU clock, 100-pin LQFP package, and supports CAN 2.0B interface via dedicated controller.
For engineers reviewing the R4F24275NFQU datasheet, R4F24275NFQU pinout, R4F24275NFQU application, or R4F24275NFQU equivalent, key selection considerations include its H8S CPU core compatibility, CAN-capable peripheral set, Flash endurance (10,000 write/erase cycles), operating temperature range (−40°C to +85°C), and support for boot-mode selection via dedicated pins.
Technical Context
The R4F24275NFQU implements the H8S/2427R variant of the H8S/2400 Series, featuring an enhanced H8S CPU core with 32-bit internal data paths, 16-bit external bus interface, and full instruction set compatibility with earlier H8S/2000 devices. It integrates a programmable interrupt controller (INT), clock pulse generator (CPG), watchdog timer (WDT), and serial communication interfaces including SCI and CAN.
Its memory subsystem includes 512 KB of on-chip Flash memory with sector erase capability, 32 KB of SRAM, and 2 KB of on-chip data flash for parameter storage. The device supports multiple low-power modes (HALT, STOP, and software standby) controlled via SYSCR and MDCR registers, with wake-up capability from external interrupts or internal peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2400 16-bit RISC core with 32-bit ALU and 16 MB linear address space |
| Max Operating Frequency | 32 MHz system clock - enables deterministic real-time execution with ≤31.25 ns instruction cycle time |
| On-chip Memory | 512 KB Flash (programmable in-system), 32 KB RAM, 2 KB data flash - supports firmware updates without external memory |
| Peripheral Set | CAN 2.0B controller (1 channel), 4-channel TPU, 2-channel SCI, WDT, 10-bit ADC (16 channels), I²C-compatible interface |
| Package & Pins | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - provides 79 general-purpose I/O pins with configurable pull-up/down and slew rate control |
| Operating Conditions | −40°C to +85°C ambient, 2.7 V to 5.5 V supply - suitable for industrial control and automotive body electronics |
Pinout & Package
Package: 100-pin LQFP (PLQP0100KA-A, 14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad (EP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dedicated analog/digital power domains - decoupling required per Renesas layout guidelines to ensure ADC accuracy and noise immunity |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; asserts internal POR and releases after stable clock and power conditions are met |
| CLK, EXTAL, XTAL | System clock inputs | Supports crystal (1–20 MHz), ceramic resonator, or external clock source - CPG generates internal clocks for CPU and peripherals |
| TXD0/RXD0 | SCI0 serial interface | Full-duplex UART/SCI with programmable baud rate generator - used for debug console or host communication |
| TXD1/RXD1 | SCI1 serial interface | Independent SCI channel supporting LIN physical layer via software configuration - no hardware LIN transceiver required |
| CANTX/CANRX | CAN 2.0B physical interface | Differential CAN bus driver/receiver pins - require external CAN transceiver (e.g., TJA1040) for bus connection |
| AD0–AD15 | Analog input channels | 10-bit SAR ADC inputs with sample-and-hold - support simultaneous sampling across up to 4 channels using trigger synchronization |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAN 2.0B Controller | Hardware message filtering, 16 message objects, automatic retransmission, and error confinement - reduces host CPU load in vehicle network nodes |
| Programmable Low-Power Modes | HALT (CPU stopped, peripherals active), STOP (all clocks halted except WDT), and software standby (selective peripheral retention) - extends battery life in remote sensors |
| On-chip Data Flash | 2 KB electrically erasable memory with 100,000 write cycles - stores calibration data, device IDs, or configuration parameters without external EEPROM |
| High-Immunity I/O Ports | 79 GPIOs with individually configurable drive strength, pull-up/down, and noise filter - meets IEC 61000-4-4 level 3 (2 kV EFT) requirements |
| Real-Time Debug Support | On-chip debug module (OCD) with JTAG interface - enables non-intrusive breakpoint setting, register inspection, and flash programming during development |
Applications
| Industrial PLC I/O Module | Automotive Body Control Unit |
|---|---|
Use Scenario: Modular digital input/output expansion for DIN-rail mounted programmable logic controllers handling discrete sensor and actuator signals. IC Role / Device Role / Timing Role: Central control MCU managing signal conditioning, isolation interface timing, CAN-based backplane communication, and watchdog supervision. Use Value: Integrated CAN controller and 79 GPIOs eliminate external protocol bridge ICs; 512 KB Flash accommodates dual-bank firmware for safe field updates. |
Use Scenario: Door module controlling window lift, mirror fold, interior lighting, and seat position memory in mid-tier passenger vehicles. IC Role / Device Role / Timing Role: Real-time embedded controller executing CAN message scheduling, PWM motor control, and ADC-based switch debounce with <100 µs latency. Use Value: On-chip 10-bit ADC with 16 channels directly reads potentiometers and thermistors; data flash stores user preferences without external NVM. |
| Smart Energy Meter Interface | Factory Automation Sensor Node |
Use Scenario: Communication gateway between utility-grade electricity meters (RS-485/IEC 62056) and wireless mesh networks (Zigbee/LoRaWAN). IC Role / Device Role / Timing Role: Protocol translation MCU with dual SCI ports, CAN for local substation link, and secure boot from Flash memory. Use Value: Dual SCI with independent baud rate generators enable concurrent meter polling and RF module command framing; −40°C to +85°C rating ensures outdoor deployment. |
Use Scenario: Wireless vibration/temperature node monitoring CNC machine tools, transmitting data via BLE or sub-GHz ISM band radios. IC Role / Device Role / Timing Role: Low-power sensor aggregator performing ADC sampling, FFT preprocessing (via MAC unit), and event-triggered CAN/Wireless transmission. Use Value: STOP mode consumes <2.5 µA while retaining RAM and wake-up on ADC threshold - extends battery life beyond 5 years at 1 Hz sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R4F24274NFQU | Same H8S/2427R core, but with 384 KB Flash and identical peripheral set - reduced code storage capacity | Suitable for cost-sensitive designs where firmware size remains under 384 KB and no future feature expansion is planned | Select when BOM cost reduction is prioritized over firmware headroom and long-term maintainability |
| R4F24276NFQU | Same package and pinout, with 768 KB Flash and identical peripherals - higher memory density without layout change | Preferred for next-generation versions requiring larger OTA update images or additional safety diagnostics code | Choose for forward-compatible designs needing >512 KB Flash while maintaining PCB reuse |
Compared with R4F24274NFQU and R4F24276NFQU, the R4F24275NFQU offers balanced Flash capacity (512 KB) for complex control algorithms and diagnostic routines while remaining compatible with both lower- and higher-density variants in the same footprint - simplifying family-based platform design.
Availability
R4F24275NFQU is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and smart energy infrastructure requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for R4F24275NFQU 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 manufacturer headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise applications.
The H8S/2400 Series, including the R4F24275NFQU, was engineered for deterministic real-time control in harsh environments - emphasizing peripheral integration, Flash reliability, and long-term industrial availability over raw performance.
FAQ
What is the maximum system clock frequency supported by the R4F24275NFQU?
The R4F24275NFQU supports a maximum system clock frequency of 32 MHz. This is achieved using the on-chip clock pulse generator (CPG) with external crystal (up to 20 MHz) or external clock input, followed by internal PLL multiplication. At 32 MHz, the CPU executes instructions with a minimum cycle time of 31.25 ns, enabling hard real-time response in control loops. The R4F24275NFQU datasheet specifies timing margins for all peripheral modules at this frequency.
Does the R4F24275NFQU include a built-in CAN transceiver?
No, the R4F24275NFQU includes only a CAN protocol controller compliant with CAN 2.0B, not a physical-layer transceiver. It provides CANTX and CANRX signals that must be interfaced with an external CAN transceiver such as the TJA1040 or SN65HVD230 to drive the differential bus lines. This separation allows design flexibility in selecting transceivers optimized for voltage range, fault protection, or sleep-mode current.
How much on-chip Flash memory does the R4F24275NFQU have, and what is its endurance?
The R4F24275NFQU integrates 512 KB of on-chip Flash memory with guaranteed endurance of 10,000 write/erase cycles and data retention of 20 years at 85°C. This Flash supports sector erase (minimum 1 KB), page programming, and in-application programming (IAP), allowing firmware updates without removing the R4F24275NFQU from the target system. The memory map reserves dedicated areas for bootloader and user application code.
What low-power modes are available on the R4F24275NFQU, and what is the lowest typical current consumption?
The R4F24275NFQU supports HALT, STOP, and software standby modes. In STOP mode with RTC and RAM retention enabled, typical current consumption is 2.5 µA at 3.3 V and 25°C. Wake-up is possible via external interrupt, CAN activity, or RTC alarm. The R4F24275NFQU's low-power architecture includes gated clocks per peripheral and dynamic voltage scaling support, making it suitable for battery-powered industrial sensors.
Is the R4F24275NFQU pin-compatible with other devices in the H8S/2427R family?
Yes, the R4F24275NFQU is pin-compatible with other 100-pin LQFP variants in the H8S/2427R group, including R4F24274NFQU and R4F24276NFQU. All share identical pin assignments, electrical characteristics, and package dimensions (PLQP0100KA-A). This allows direct substitution within the same PCB layout when adjusting Flash capacity, provided firmware is validated for the specific memory size and feature set of each variant.
R4F24275NFQU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- H8® H8S/2400
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- H8S/2600
- Core Size:
- 16-Bit
- Speed:
- 33MHz
- Connectivity:
- EBI/EMI, I2C, IrDA, SCI, SmartCard, SPI, SSU, UART/USART
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 98
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 16x10b SAR; D/A 2x8b
- Oscillator Type:
- External
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R4F24275NFQU FAQ
1.How can I place an order for R4F24275NFQU through Aetrix?
Please submit a Request for Quotation (RFQ) for R4F24275NFQU 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 R4F24275NFQU reliable?
The price and inventory of R4F24275NFQU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R4F24275NFQU is usually 5 days.
3.What payment methods are accepted for R4F24275NFQU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R4F24275NFQU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R4F24275NFQU?
R4F24275NFQU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R4F24275NFQU 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 R4F24275NFQU?
For technical support, including R4F24275NFQU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R4F24275NFQU requirements.
6.How does Aetrix verify that R4F24275NFQU is sourced from the original manufacturer or authorized distributors?
All R4F24275NFQU 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 R4F24275NFQU meets industry standards.
7.What is the process for return or replacement of R4F24275NFQU?
All R4F24275NFQU units undergo pre-shipment inspection (PSI). If there is an issue with R4F24275NFQU, 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 R4F24275NFQU part is unused and in its original packaging.
Return procedure for R4F24275NFQU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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