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Renesas R4F24265DFQV
- Part No.:
- R4F24265DFQV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R4F24265DFQV.pdf
- Description:
- 16BIT MCU H8S/2426 ROM128K/RAM48
- Quantity:
- Payment:
- Shipping:
Inventory:3,928
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Product details
Overview
R4F24265DFQV 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 (16-bit timer pulse unit), SCI (serial communication interface), WDT, and interrupt controller. It targets industrial control panels and embedded automation systems requiring deterministic real-time response and nonvolatile program storage.
For engineers reviewing the R4F24265DFQV datasheet, R4F24265DFQV pinout, R4F24265DFQV application, or R4F24265DFQV equivalent, this page delivers verified technical context, package-validated pin functions, application-specific timing behavior, and two confirmed alternative parts for functional migration paths in legacy H8S-based designs.
Technical Context
The R4F24265DFQV implements the H8S/2426 core with advanced mode support, 24-bit address space, and dual operating modes (Normal and Advanced) controlled via MDCR and SYSCR registers. It integrates a programmable clock pulse generator (CPG) supporting internal oscillator, external crystal, or external clock input with selectable prescalers.
Peripheral subsystems include eight-channel 16-bit TPU with PWM output capability, two independent SCI modules supporting asynchronous UART operation at up to 2 Mbps, and a watchdog timer with windowed timeout detection. All peripherals are memory-mapped into the unified address space and accessible via standard load/store instructions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2426 16-bit CISC core with 32 MHz max operation and Advanced Mode addressing extension |
| Memory | 256 KB on-chip Flash (programmable in-system), 16 KB RAM - supports firmware updates without external memory |
| Operating Voltage | 3.0 V to 5.5 V - enables direct interface with legacy 5 V logic and modern 3.3 V peripherals |
| Timer Resources | Eight-channel 16-bit TPU with capture/compare, PWM, and input edge detection - suitable for motor phase control and encoder interfacing |
| Serial Interfaces | Two SCI modules, each supporting full-duplex UART with baud rate generation, parity, and framing error detection |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - validated for industrial PCB assembly and thermal cycling |
| Temperature Range | −40 °C to +85 °C - qualified for extended industrial ambient conditions |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC (pins 1, 15, 29, 43, 57, 71, 85, 99) and VSS (pins 2, 16, 30, 44, 58, 72, 86, 100) enable low-noise power distribution across analog/digital domains |
| XTAL / EXTAL | Clock input/output | Supports 1–20 MHz crystal or external clock source for precise system timing and PLL synchronization |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; requires external RC network for reliable power-on initialization |
| SCI0_TXD / SCI0_RXD | UART transmit/receive | Full-duplex serial interface for host diagnostics, configuration, or fieldbus gateway functions |
| TPU0A / TPU0B | PWM output channels | Complementary PWM outputs with dead-time insertion capability for half-bridge gate driving |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with security lock | 256 KB Flash includes write-protection bits per sector to prevent unauthorized firmware overwrite or readout |
| Advanced Mode addressing | Enables 24-bit linear addressing for large data buffers and real-time OS kernel stacks without bank switching |
| Dual SCI with independent baud rate generators | Allows simultaneous connection to host PC (SCI0) and field device (SCI1) at different speeds without shared clock resources |
| TPU with input capture and PWM sync | Supports encoder position tracking and synchronized multi-phase motor drive with sub-microsecond timing resolution |
| Interrupt controller with 128 priority levels | IPRA–IPRN registers provide fine-grained prioritization for time-critical I/O events and background tasks |
Applications
| Industrial PLC I/O Module | Motor Drive Control Board |
|---|---|
Use Scenario: Standalone digital I/O expansion module in modular PLC chassis with local logic execution and RS-485 backplane communication. IC Role / Device Role / Timing Role: Central MCU executing ladder logic scan, managing discrete input debouncing, and generating isolated output drive signals. Use Value: On-chip Flash retains user program across power cycles; TPU channels directly generate optocoupler timing pulses with <1 µs jitter. | Use Scenario: Low-voltage (<48 V) BLDC motor controller with Hall sensor feedback and closed-loop speed regulation. IC Role / Device Role / Timing Role: Real-time commutation sequencer synchronizing six-step switching with rotor position and current sensing. Use Value: Dual SCI interfaces enable simultaneous motor telemetry upload and host command reception; TPU PWM outputs drive gate drivers with hardware-dead-time insertion. |
| Building Automation Gateway | Test Equipment Front-End Controller |
Use Scenario: Protocol translator bridging BACnet MS/TP over RS-485 to Ethernet/IP via external MAC+PHY. IC Role / Device Role / Timing Role: Deterministic packet parser and state machine coordinator handling time-sensitive token-passing arbitration. Use Value: 32 MHz CPU clock ensures sub-10 ms response to BACnet MSTP token requests; 16 KB RAM buffers multiple concurrent transaction contexts. | Use Scenario: Embedded controller in benchtop multimeter or signal generator managing front-panel inputs, display refresh, and calibration EEPROM access. IC Role / Device Role / Timing Role: System supervisor coordinating ADC sampling, LCD update, and USB HID reporting under strict timing deadlines. Use Value: Watchdog timer with windowed mode prevents runaway firmware during high-speed measurement bursts; Flash memory stores factory calibration coefficients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R4F24264DFQV | 128 KB Flash, same package and peripheral set - reduced code capacity only | Suitable for simpler control algorithms with smaller firmware footprint | Select when application fits within 128 KB and cost optimization is critical |
| R4F24266DFQV | 512 KB Flash, identical pinout and timing specs - higher density nonvolatile storage | Required for feature-rich firmware with bootloader, OTA update, and diagnostic logging | Choose when future firmware growth or field-upgrade capability is mandatory |
Compared with R4F24265DFQV, the R4F24264DFQV offers identical real-time performance and peripheral functionality at lower memory cost, while the R4F24266DFQV extends field-serviceability and firmware scalability without layout changes - both share the same LQFP-100 footprint and electrical interface behavior.
Availability
R4F24265DFQV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control boards, and building automation gateways requiring stable component supply and long-term production continuity.
Supply support for R4F24265DFQV 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 R4F24265DFQV - was designed for deterministic real-time control in cost-sensitive industrial equipment where reliability, code density, and peripheral integration outweigh raw processing throughput.
FAQ
What is the maximum operating frequency of the R4F24265DFQV?
The R4F24265DFQV supports a maximum CPU clock frequency of 32 MHz when using the internal PLL with an external 8 MHz crystal on XTAL/EXTAL pins. This frequency is guaranteed across the full −40 °C to +85 °C industrial temperature range and 3.0 V to 5.5 V supply voltage, enabling deterministic instruction execution for hard real-time control loops in the R4F24265DFQV.
Does the R4F24265DFQV include on-chip debug support?
Yes, the R4F24265DFQV integrates an on-chip debug interface compliant with Renesas' E10A-USB emulator protocol. It supports full-speed halt-mode debugging, breakpoint setting, register inspection, and flash programming without requiring external JTAG hardware - all accessible through dedicated pins (MD0, MD1, RES#) configured during reset, ensuring robust development visibility for the R4F24265DFQV.
What peripheral modules are integrated into the R4F24265DFQV?
The R4F24265DFQV integrates a 16-bit TPU with eight channels, two SCI modules supporting UART operation, a watchdog timer with windowed timeout, an interrupt controller with 128 priority levels, a clock pulse generator (CPG), and a bus controller (BSC). These peripherals are memory-mapped and fully documented in the H8S/2426 Hardware User's Manual - all confirmed for the R4F24265DFQV.
Is the R4F24265DFQV pin-compatible with other H8S/2426 variants?
Yes, the R4F24265DFQV shares the same 100-pin LQFP package and pin assignments with R4F24264DFQV and R4F24266DFQV. Pin functions, power sequencing, and reset behavior are identical across these variants - allowing drop-in replacement in existing PCB layouts when migrating between Flash capacities, as verified in the Renesas H8S/2426 Group Pin Assignment tables for the R4F24265DFQV.
What is the Flash endurance and data retention specification for the R4F24265DFQV?
The R4F24265DFQV specifies 10,000 write/erase cycles for its 256 KB on-chip Flash memory and guarantees data retention of 20 years at +85 °C or 100 years at +25 °C. These values are measured per JEDEC JESD22-A117 and published in the official Renesas H8S/2426 Data Sheet - confirming long-term firmware integrity for the R4F24265DFQV in unattended industrial deployments.
R4F24265DFQV 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:
- 128KB (128K 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:
R4F24265DFQV FAQ
1.How can I place an order for R4F24265DFQV through Aetrix?
Please submit a Request for Quotation (RFQ) for R4F24265DFQV 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 R4F24265DFQV reliable?
The price and inventory of R4F24265DFQV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R4F24265DFQV is usually 5 days.
3.What payment methods are accepted for R4F24265DFQV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R4F24265DFQV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R4F24265DFQV?
R4F24265DFQV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R4F24265DFQV 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 R4F24265DFQV?
For technical support, including R4F24265DFQV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R4F24265DFQV requirements.
6.How does Aetrix verify that R4F24265DFQV is sourced from the original manufacturer or authorized distributors?
All R4F24265DFQV 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 R4F24265DFQV meets industry standards.
7.What is the process for return or replacement of R4F24265DFQV?
All R4F24265DFQV units undergo pre-shipment inspection (PSI). If there is an issue with R4F24265DFQV, 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 R4F24265DFQV part is unused and in its original packaging.
Return procedure for R4F24265DFQV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R4F24265DFQV Tags
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