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Renesas R4F24248NVFAU
- Part No.:
- R4F24248NVFAU
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 120-LQFP
- Datasheet:
-
R4F24248NVFAU.pdf
- Description:
- 16BIT MCU H8S/2424 ROM256K/RAM48
- Quantity:
- Payment:
- Shipping:
Inventory:4,032
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Product details
Overview
R4F24248NVFAU from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2400 Series, featuring an H8S CPU core, 512 KB on-chip Flash memory, 32 KB RAM, and integrated peripherals including TPU, SCI, WDT, and CPG. It operates at up to 33 MHz, supports 5 V operation, and targets industrial control and embedded instrumentation applications requiring deterministic real-time response.
For engineers reviewing the R4F24248NVFAU datasheet, R4F24248NVFAU pinout, R4F24248NVFAU application, or R4F24248NVFAU equivalent, key selection criteria include Flash endurance (10,000 write/erase cycles), operating temperature range (−40°C to +85°C), and compatibility with H8S/2424 Group development tools and software libraries.
Technical Context
The R4F24248NVFAU implements the H8S CPU architecture with 24-bit address space, supporting both normal and advanced operating modes. It integrates a clock pulse generator (CPG) with internal oscillator and PLL options, enabling flexible clock source configuration for system timing control.
Peripheral subsystems include a 16-bit Timer Pulse Unit (TPU) with input capture/output compare functions, multiple Serial Communication Interfaces (SCI) supporting asynchronous communication, and a watchdog timer (WDT) with windowed timeout capability - all directly memory-mapped and controllable via special function registers (SFRs).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S 16-bit RISC core with 24-bit addressing and 3-stage pipeline |
| Max Clock Frequency | 33 MHz - enables deterministic real-time execution with ≤30 ns instruction cycle time |
| On-chip Memory | 512 KB Flash (programmable in 1 KB blocks) and 32 KB RAM - supports in-application programming (IAP) |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V industrial logic and analog interfaces |
| Operating Temperature | −40°C to +85°C - qualified for extended industrial environment deployment |
| Package Type | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - surface-mount compatible with automated PCB assembly |
| Peripheral Set | TPU (16-bit × 6 channels), SCI (2 channels), WDT, CPG, INT, BSC - enables standalone control without external support ICs |
Pinout & Package
The R4F24248NVFAU is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad, rated for industrial temperature operation and RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 5 V supply domains: VCC for I/O and core logic, VSS as common reference - requires local decoupling per Renesas layout guidelines |
| XTAL, EXTAL | Crystal oscillator connection | Supports 1–10 MHz external crystal for precise system clock generation; internal oscillator usable if external source unavailable |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU state and initializes peripheral registers; must be held low ≥1024 clock cycles for reliable release |
| IRQ0–IRQ7 | External interrupt inputs | Level-sensitive or edge-triggered inputs configurable via ISCRH/ISCRL registers - enable fast response to external events like sensor triggers or fault signals |
| TXD0, RXD0 | SCI channel 0 serial interface | Full-duplex UART-compatible pins supporting 300 bps–1 Mbps baud rates - used for host diagnostics, firmware updates, or fieldbus communication |
| TPU0A–TPU5B | Timer pulse unit I/O | Programmable input capture, output compare, PWM, and pulse counting pins - directly drive motors, read encoders, or generate precise timing waveforms |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with ECC | 512 KB Flash includes error-correcting code (ECC) for single-bit error correction and double-bit error detection - ensures firmware integrity in electrically noisy environments |
| Multi-mode power control | Supports wait, stop, and software standby modes with configurable wake-up sources - reduces active current to <1 mA in stop mode for battery-backed systems |
| Hardware debug interface | On-chip debugging support via dedicated DCK/DIO pins compliant with Renesas E8/E8a emulators - enables non-intrusive breakpoint setting and real-time register inspection |
| Memory protection unit (MPU) | Configurable region-based access control for Flash, RAM, and peripheral registers - prevents accidental overwrites and enforces secure boot partitioning |
| High-noise immunity I/O | I/O pins meet IEC 61000-4-2 ±8 kV contact / ±15 kV air discharge ESD rating - suitable for industrial panel-mounted equipment |
Applications
| Industrial PLC I/O Module | Motor Drive Control Unit |
|---|---|
Use Scenario: Standalone digital I/O expansion module interfacing with main PLC CPU via RS-485. IC Role / Device Role / Timing Role: Primary controller executing cyclic scan logic, managing opto-isolated input sampling and relay output sequencing with deterministic 1 ms task scheduling. Use Value: On-chip TPU captures encoder pulses at ≤100 kHz and generates synchronized PWM for servo feedback - eliminates need for external timing ASICs. | Use Scenario: Compact brushless DC (BLDC) motor controller for HVAC blowers and industrial fans. IC Role / Device Role / Timing Role: Real-time commutation engine coordinating six-step switching, current sensing ADC interface, and thermal shutdown monitoring. Use Value: Integrated WDT with windowed timeout prevents runaway code during high-EMI motor switching - maintains safe fail-stop behavior without external supervision IC. |
| Energy Meter Data Logger | Factory Automation Sensor Hub |
Use Scenario: Tamper-resistant electricity meter with pulse counting, tariff switching, and secure data storage. IC Role / Device Role / Timing Role: Secure metering controller managing metrology IC interface (SPI), EEPROM logging, and IR/RS-485 communications under strict time-slice constraints. Use Value: 512 KB Flash enables dual-bank firmware update with rollback - satisfies IEC 62056-21 and DLMS/COSEM field upgrade requirements. | Use Scenario: Multi-sensor aggregator collecting temperature, vibration, and pressure data from legacy 4–20 mA transmitters. IC Role / Device Role / Timing Role: Protocol bridge converting analog inputs to Modbus RTU over RS-485, with timestamped event buffering. Use Value: Hardware SCI with automatic baud rate detection and framing error recovery handles variable transmitter startup timing - improves interoperability with field devices of mixed vintage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R4F24248NVFAV | Same die, identical Flash/RAM/peripherals, but packaged in 100-pin PQFP (0.65 mm pitch) instead of LQFP | Requires PCB footprint redesign; not suitable for high-density layouts optimized for fine-pitch LQFP | Select R4F24248NVFAV only when legacy PQFP assembly infrastructure is in place and thermal performance requirements are less stringent |
| R4F24244NVFAU | Same package and pinout, but with 256 KB Flash and 16 KB RAM - otherwise identical peripheral set and timing specs | Lower memory capacity limits firmware complexity and data logging depth; suitable for cost-sensitive fixed-function controllers | Choose R4F24244NVFAU where application code size remains below 200 KB and no runtime firmware updates are required |
Compared with R4F24248NVFAU, R4F24248NVFAV offers identical functionality in a legacy PQFP package requiring different board layout, while R4F24244NVFAU provides a memory-reduced variant with full pin compatibility - both serve distinct cost, layout, and scalability trade-offs without altering core real-time control capabilities.
Availability
R4F24248NVFAU is available at Aetrix Electronics and suitable for industrial automation, motor control, and energy metering applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for R4F24248NVFAU 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 R4F24248NVFAU - was designed for deterministic real-time embedded control in harsh industrial environments, emphasizing robustness, long-lifecycle availability, and toolchain continuity across generations.
FAQ
What is the maximum operating frequency of the R4F24248NVFAU?
The R4F24248NVFAU supports a maximum CPU clock frequency of 33 MHz when using the on-chip PLL with an external crystal input. This yields a 30.3 ns instruction cycle time for critical real-time tasks. Operation at this speed requires stable 5 V supply and proper decoupling per Renesas hardware design guidelines. The R4F24248NVFAU maintains full peripheral functionality-including TPU and SCI-at maximum clock rate.
Does the R4F24248NVFAU include hardware debug support?
Yes, the R4F24248NVFAU integrates on-chip debugging circuitry compatible with Renesas E8 and E8a emulator systems. Debug signals (DCK/DIO) are assigned to dedicated pins and support non-intrusive breakpoints, real-time register/memory inspection, and flash programming. No external JTAG adapter is required, and the R4F24248NVFAU retains full debug capability even when operating in low-power stop mode with selected wake-up sources enabled.
What is the Flash memory endurance specification for the R4F24248NVFAU?
The R4F24248NVFAU specifies 10,000 write/erase cycles for its 512 KB on-chip Flash memory, with data retention guaranteed for 20 years at 85°C. Each 1 KB block can be erased independently, enabling efficient firmware updates and parameter storage. The R4F24248NVFAU also includes built-in ECC logic that corrects single-bit errors and detects double-bit errors during read operations - essential for maintaining firmware integrity in mission-critical applications.
Can the R4F24248NVFAU operate from a 3.3 V supply?
No, the R4F24248NVFAU is specified exclusively for 4.5 V to 5.5 V operation and is not 3.3 V tolerant. Its I/O structure, internal regulators, and Flash programming voltage requirements are designed for 5 V systems. Attempting to power the R4F24248NVFAU at 3.3 V will result in undefined behavior, failure to execute instructions, or inability to program Flash. For 3.3 V designs, consider Renesas' RX or RA families instead of the R4F24248NVFAU.
Is the R4F24248NVFAU pin-compatible with other H8S/2424 Group members?
Yes, the R4F24248NVFAU shares identical pin assignment, electrical characteristics, and peripheral register mapping with other 100-pin LQFP variants in the H8S/2424 Group - including R4F24244NVFAU and R4F24240NVFAU. This allows direct substitution within the same footprint for memory- or feature-scaling purposes, provided software accounts for differences in Flash size, RAM size, or peripheral enablement. The R4F24248NVFAU maintains full functional compatibility across this group.
R4F24248NVFAU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 120-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:
- 83
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- A/D 10x10b SAR; D/A 2x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R4F24248NVFAU FAQ
1.How can I place an order for R4F24248NVFAU through Aetrix?
Please submit a Request for Quotation (RFQ) for R4F24248NVFAU 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 R4F24248NVFAU reliable?
The price and inventory of R4F24248NVFAU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R4F24248NVFAU is usually 5 days.
3.What payment methods are accepted for R4F24248NVFAU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R4F24248NVFAU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R4F24248NVFAU?
R4F24248NVFAU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R4F24248NVFAU 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 R4F24248NVFAU?
For technical support, including R4F24248NVFAU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R4F24248NVFAU requirements.
6.How does Aetrix verify that R4F24248NVFAU is sourced from the original manufacturer or authorized distributors?
All R4F24248NVFAU 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 R4F24248NVFAU meets industry standards.
7.What is the process for return or replacement of R4F24248NVFAU?
All R4F24248NVFAU units undergo pre-shipment inspection (PSI). If there is an issue with R4F24248NVFAU, 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 R4F24248NVFAU part is unused and in its original packaging.
Return procedure for R4F24248NVFAU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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