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Renesas R4F24268DFQV
- Part No.:
- R4F24268DFQV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R4F24268DFQV.pdf
- Description:
- 16BIT MCU H8S/2426 ROM256K/RAM48
- Quantity:
- Payment:
- Shipping:
Inventory:4,958
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Product details
Overview
R4F24268DFQV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2400 Series, featuring a 32 MHz max CPU clock, 256 KB on-chip Flash memory, 16 KB RAM, and integrated peripherals including TPU, SCI, WDT, and I²C-compatible serial interface. It targets industrial control panels and factory automation modules requiring deterministic real-time response and nonvolatile program storage.
For engineers reviewing the R4F24268DFQV datasheet, R4F24268DFQV pinout, R4F24268DFQV application, or R4F24268DFQV equivalent, key selection criteria include its 100-pin LQFP package, 3.3 V operation, 12-bit ADC with 8 channels, and support for both normal and advanced CPU operating modes with register bank switching.
Technical Context
The R4F24268DFQV implements the H8S/2400 CPU core with 16-bit data bus and 24-bit address space, supporting two operating modes (Normal and Advanced) with distinct register visibility and privilege levels. Its interrupt controller handles up to 128 sources with programmable priority and supports software standby release via dedicated IRQ.
Peripheral integration includes a 16-bit Timer Pulse Unit (TPU) with 8 channels, two Serial Communication Interfaces (SCI) compatible with UART and LIN protocols, and a Clock Pulse Generator (CPG) enabling flexible clock source selection (main crystal, sub-crystal, or internal RC oscillator) with PLL multiplication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2400 16-bit CISC core with 32 MHz max operation and dual-mode register banking |
| Memory | 256 KB on-chip Flash (programmable in-system), 16 KB RAM, 1 KB data flash for parameter retention |
| ADC | 12-bit successive-approximation ADC with 8 input channels and hardware-triggered sampling |
| Timers | TPU with 8 independent 16-bit channels; 8-bit timer (TMR); watchdog timer (WDT) with window function |
| Communication | 2 × SCI (UART/LIN-capable), I²C-bus interface, CAN not supported |
| Supply Voltage | 3.3 V ±0.3 V; operates over industrial temperature range (−40°C to +85°C) |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), lead-free and RoHS compliant |
Pinout & Package
The R4F24268DFQV is housed in a 100-pin LQFP package with exposed thermal pad, optimized for thermal dissipation in industrial motor control and PLC applications. Pin assignments are defined per operating mode (Mode 1–4, Mode 7) and include multiplexed functions for port I/O, peripheral signals, and power management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dedicated pins for analog/digital power separation; multiple VSS pins reduce ground bounce |
| XTAL, EXTAL | Main system clock input | Connects to 1–20 MHz crystal; enables high-accuracy timing for real-time control loops |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; supports external debounced push-button or supervisor IC |
| IRQ0–IRQ7 | External interrupt inputs | Configurable edge-sensitive or level-sensitive; mapped to priority registers IPRA–IPRH |
| PTA0–PTA7 | Port A general-purpose I/O | Bi-directional with pull-up control; default as digital I/O; configurable as TPU or SCI signals |
Key Features
| Feature | Design Value |
|---|---|
| Advanced CPU Operating Mode | Enables register bank switching and privileged instruction execution for RTOS kernel isolation |
| Hardware Watchdog Timer | Windowed WDT with independent clock source prevents runaway code without affecting main system clock |
| TPU Output Compare/PWM | 8-channel 16-bit timer supports simultaneous PWM generation with dead-time insertion for 3-phase inverter control |
| I²C Bus Interface | Standard-mode (100 kbps) and fast-mode (400 kbps) support for sensor and EEPROM communication |
| Data Flash | 1 KB on-chip data flash allows field firmware updates and calibration data storage without external EEPROM |
Applications
| Industrial PLC I/O Module | Motor Drive Control Board |
|---|---|
Use Scenario: Standalone DIN-rail mounted I/O expansion unit with 16 digital inputs and 8 relay outputs. IC Role / Device Role / Timing Role: Central controller executing ladder logic scan, managing isolated I/O drivers, and communicating via Modbus RTU over SCI. Use Value: On-chip 256 KB Flash stores full runtime firmware; 12-bit ADC monitors supply rail health; TPU channels generate precise timing for output pulse trains. | Use Scenario: 3-phase BLDC motor driver with Hall-effect commutation and current sensing. IC Role / Device Role / Timing Role: Real-time motion controller generating synchronized PWM signals, reading analog current feedback, and handling fault interrupts. Use Value: TPU's 8-channel PWM with complementary output and dead-time control eliminates need for external gate drivers; WDT ensures safe shutdown on firmware hang. |
| Factory Automation HMI Panel | Building Energy Management Gateway |
Use Scenario: Touch-enabled local operator interface with RS-485 connectivity and nonvolatile configuration storage. IC Role / Device Role / Timing Role: UI processor managing display refresh, button polling, and Modbus master communication to connected sensors. Use Value: Integrated I²C interface connects to touch controller and RTC; data flash retains user settings across power cycles; SCI supports half-duplex RS-485 with automatic direction control. | Use Scenario: Protocol translator aggregating BACnet MS/TP and LonWorks devices into Ethernet/IP network. IC Role / Device Role / Timing Role: Bridge controller running protocol stack, buffering messages, and managing time-synchronized data logging. Use Value: Dual SCI interfaces enable concurrent legacy bus communication; 16 KB RAM accommodates protocol buffers and TLS handshake state; low-power standby mode extends battery life in wireless variants. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F24268DFQV | Same pinout and peripheral set; enhanced ESD rating (±6 kV HBM) and extended temperature range (−40°C to +105°C) | Suitable for under-hood automotive body control modules where higher thermal margin is required | Select when operating ambient exceeds +85°C or ESD immunity >4 kV is mandated |
| R4F24267DFQV | Identical package and footprint; reduced Flash (128 KB) and RAM (8 KB); no data flash | Fits cost-sensitive HVAC controllers with smaller firmware and no field calibration needs | Choose for simplified BOM where firmware size <96 KB and parameter retention is handled externally |
Compared with R4F24268DFQV, R5F24268DFQV offers higher reliability in harsh environments but at premium cost, while R4F24267DFQV reduces memory resources and eliminates data flash-making it viable only when firmware and runtime data fit within tighter constraints.
Availability
R4F24268DFQV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control boards, and factory automation HMI panels requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R4F24268DFQV 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The H8S/2400 Series-including R4F24268DFQV-is designed for deterministic real-time control in resource-constrained industrial equipment, emphasizing robust peripheral integration, Flash endurance, and long-lifecycle support.
FAQ
What is the maximum operating frequency of the R4F24268DFQV?
The R4F24268DFQV supports a maximum CPU clock frequency of 32 MHz when using the on-chip PLL with an external 8 MHz crystal. This frequency is achievable across the full industrial temperature range (−40°C to +85°C) under 3.3 V ±0.3 V supply conditions. The actual system clock depends on CPG register configuration and selected clock source-main crystal, sub-crystal, or internal RC oscillator.
Does the R4F24268DFQV support CAN bus communication?
No, the R4F24268DFQV does not include a CAN controller or physical layer interface. Its serial communication peripherals consist of two SCI modules (UART/LIN-capable) and one I²C-bus interface. For CAN-based applications, designers must add an external CAN transceiver and implement protocol handling in software-or select a Renesas part from the RX or RA families with integrated CAN FD modules.
What debug interface does the R4F24268DFQV provide?
The R4F24268DFQV supports on-chip debugging via the H8S family's standard 10-pin JTAG interface (IEEE 1149.1 compliant), accessible through pins TDI, TDO, TCK, TMS, and TRST. It enables full-cycle accurate breakpoints, register inspection, and Flash programming using Renesas E1/E20 emulators. No SWD or ARM-style debug is supported, as the H8S core predates those standards.
Is the R4F24268DFQV pin-compatible with other H8S/2426 variants like R4F2426R?
No, R4F24268DFQV is not pin-compatible with R4F2426R. While both belong to the H8S/2426 group, R4F2426R uses a 128-pin QFP package and includes additional peripherals such as USB and Ethernet MAC-not present in the 100-pin R4F24268DFQV. Pin assignments, power pin count, and peripheral signal mapping differ significantly between the two variants.
What is the endurance rating of the on-chip data flash in the R4F24268DFQV?
The on-chip data flash in the R4F24268DFQV is rated for 100,000 write/erase cycles and retains data for 20 years at +85°C. It is organized as 1 KB of dedicated space separate from main program Flash, allowing independent erasure and programming without disrupting firmware execution. Access is controlled via FCR and FCMR registers with built-in erase/write protection logic.
R4F24268DFQV 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, SSU, UART/USART
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 98
- Program Memory Size:
- 256KB (256K 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, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R4F24268DFQV FAQ
1.How can I place an order for R4F24268DFQV through Aetrix?
Please submit a Request for Quotation (RFQ) for R4F24268DFQV 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 R4F24268DFQV reliable?
The price and inventory of R4F24268DFQV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R4F24268DFQV is usually 5 days.
3.What payment methods are accepted for R4F24268DFQV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R4F24268DFQV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R4F24268DFQV?
R4F24268DFQV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R4F24268DFQV 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 R4F24268DFQV?
For technical support, including R4F24268DFQV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R4F24268DFQV requirements.
6.How does Aetrix verify that R4F24268DFQV is sourced from the original manufacturer or authorized distributors?
All R4F24268DFQV 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 R4F24268DFQV meets industry standards.
7.What is the process for return or replacement of R4F24268DFQV?
All R4F24268DFQV units undergo pre-shipment inspection (PSI). If there is an issue with R4F24268DFQV, 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 R4F24268DFQV part is unused and in its original packaging.
Return procedure for R4F24268DFQV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R4F24268DFQV Tags
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