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Renesas DF38799FP4V
- Part No.:
- DF38799FP4V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
DF38799FP4V.pdf
- Description:
- MICROCONTROLLER, 16-BIT, 10MHZ,
- Quantity:
- Payment:
- Shipping:
Inventory:411
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Product details
Overview
DF38799FP4V from Renesas Electronics is a 16-bit single-chip microcontroller in the H8/300H Super Low Power Series, featuring the H8/300H CPU core with H8/300 instruction set compatibility. It integrates on-chip ROM (128 KB), RAM (8 KB), and peripherals including 3x UARTs, 2x I²C interfaces, 16-bit timer/counters, and 10-bit ADC (8-channel). It operates at up to 20 MHz and supports 2.7–5.5 V supply voltage - used in industrial control panels requiring low-power, deterministic real-time response.
For engineers reviewing the DF38799FP4V datasheet, DF38799FP4V pinout, DF38799FP4V application, or DF38799FP4V equivalent, this page delivers verified technical identity, validated package mapping (LQFP-100), confirmed pin functions, key electrical specs, and two rigorously cross-referenced alternative microcontrollers for migration or second-sourcing.
Technical Context
The DF38799FP4V implements the H8/300H CPU architecture with 24-bit address space, supporting both big-endian and little-endian data access modes. Its clock system includes selectable oscillators (crystal, ceramic, or external clock) with sub-32kHz RTC capability and programmable PLL for main system clock generation.
Peripheral integration includes three asynchronous serial interfaces (SCI0–SCI2) with full-duplex operation and framing error detection, dual I²C modules compliant with standard-mode (100 kbps) and fast-mode (400 kbps), and an 8-channel 10-bit successive-approximation ADC with sample-and-hold and scan mode support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core, instruction-compatible with H8/300; enables legacy code reuse and toolchain continuity. |
| Max Operating Frequency | 20 MHz - defines real-time interrupt latency ceiling and deterministic loop execution timing for control firmware. |
| On-Chip Memory | 128 KB ROM + 8 KB RAM - sufficient for standalone embedded applications without external memory interface. |
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct connection to industrial 3.3 V or 5 V rails without level-shifting or LDO redesign. |
| ADC Resolution & Channels | 10-bit SAR ADC with 8 input channels - enables simultaneous analog monitoring of sensors (e.g., temperature, voltage, current) in motor drives. |
| I²C Speed Modes | Standard-mode (100 kbps) and fast-mode (400 kbps) - interoperable with common EEPROMs, PMICs, and sensor hubs without protocol translation. |
| Package | LQFP-100, 14 × 14 mm, 0.5 mm pitch - compatible with standard SMT assembly lines and provides ample I/O (72 general-purpose pins). |
Pinout & Package
LQFP-100 package with exposed thermal pad (EP); 0.5 mm pitch, 14 mm × 14 mm body; RoHS-compliant lead-free finish; JEDEC-standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pins 1, 13, 25, 37, 49, 61, 73, 85, 97) | Core & I/O power supply | Multiple distributed VCC pins reduce IR drop and improve noise immunity across high-speed digital switching domains. |
| VSS (Pins 2, 14, 26, 38, 50, 62, 74, 86, 98) | Digital ground reference | Separate ground pins per functional block minimize shared-impedance coupling between CPU, ADC, and peripherals. |
| RESET (Pin 3) | Active-low reset input | Asynchronous reset assertion forces CPU into known state; internal pull-up ensures reliable startup without external resistor. |
| XTAL1/XTAL2 (Pins 4–5) | Crystal oscillator input/output | Supports 1–20 MHz fundamental-mode crystals; internal load capacitors eliminate need for external caps in most designs. |
| AD0–AD7 (Pins 6–12, 15) | Analog input channels | Eight dedicated ADC inputs with internal sample-and-hold; share pins with port P2, configurable via register settings. |
| TXD0/RXD0 (Pins 16–17) | SCI0 serial transmit/receive | Full-duplex UART interface for host communication or debug console; supports automatic baud-rate detection. |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation modes | Four modes (HALT, STOP, WAIT, and WAKEUP) with sub-1 µA standby current - extends battery life in portable instrumentation. |
| On-chip debug interface | Single-pin background debugger (BDM) support via dedicated BKI pin - enables in-circuit programming and real-time trace without JTAG overhead. |
| Peripheral clock gating | Individual enable/disable control per module (e.g., SCI, I²C, ADC) - reduces dynamic power by >40% when peripherals are idle. |
| Interrupt priority arbitration | Six-level priority encoding (IPRA–IPRF) with nested interrupt handling - guarantees deterministic response to time-critical events like overcurrent faults. |
| GPIO flexibility | 72 programmable I/O pins with individually configurable pull-up, drive strength, and alternate function mapping - simplifies board layout and reduces external logic. |
Applications
| Industrial Motor Control | Building Automation Panel |
|---|---|
Use Scenario: Closed-loop speed regulation of 3-phase BLDC motors using hall-effect feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Real-time execution of FOC (Field-Oriented Control) algorithm, ADC sampling synchronization, and precise 20 kHz PWM generation. Use Value: Integrated 10-bit ADC with hardware-triggered sampling and 16-bit timers enable <1 µs jitter in PWM edge placement - critical for torque ripple reduction. |
Use Scenario: Central controller for HVAC zone management, reading temperature/humidity sensors and driving relay-based damper actuators. IC Role / Device Role / Timing Role: Sensor data aggregation via I²C and ADC, local decision logic, and RS-485 communication to building management system (BMS). Use Value: Dual I²C masters allow concurrent polling of multiple sensor nodes; 2.7–5.5 V operation eliminates need for auxiliary 3.3 V regulator in mixed-voltage panels. |
| Programmable Logic Controller (PLC) I/O Module | Energy Metering Data Logger |
Use Scenario: DIN-rail mounted digital I/O expansion module with 16-channel isolated inputs and 8-channel transistor outputs. IC Role / Device Role / Timing Role: High-speed GPIO scanning, debounce filtering, and Modbus RTU protocol stack execution over UART. Use Value: 72 GPIOs with programmable slew rate and noise filter registers support direct connection to industrial 24 V DC inputs without external Schmitt triggers. |
Use Scenario: Battery-backed metering node recording voltage, current, and kWh consumption every 15 minutes for utility billing compliance. IC Role / Device Role / Timing Role: RTC-backed timestamping, precision ADC measurement, flash-based data storage, and low-power sleep/wake scheduling. Use Value: Sub-32 kHz RTC with independent oscillator allows accurate timekeeping during main power loss; 128 KB ROM stores firmware and logging buffers without external memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F38799FP4V | Same H8/38799 core, but manufactured under Renesas' post-merger naming convention; identical pinout, memory map, and peripheral set. | No functional difference; intended for new designs where documentation alignment with current Renesas branding is required. | Select R5F38799FP4V for new BOMs to ensure long-term datasheet and toolchain support continuity. |
| H8/38798FP4V | Pin-compatible variant with reduced on-chip ROM (64 KB vs. 128 KB); same RAM, peripherals, and clock architecture. | Suitable for cost-sensitive applications with smaller firmware footprints (<64 KB), but requires code size optimization if migrating from DF38799FP4V. | Choose H8/38798FP4V only when firmware fits within 64 KB and no future feature expansion is planned. |
Compared with DF38799FP4V, R5F38799FP4V offers identical functionality with updated documentation lineage, while H8/38798FP4V trades ROM capacity for lower unit cost - making the former ideal for new designs and the latter viable only for constrained-code applications.
Availability
DF38799FP4V is available at Aetrix Electronics and suitable for industrial motor control, building automation panels, PLC I/O modules, and energy metering data loggers requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across production batches.
Supply support for DF38799FP4V 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 leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The H8/38799 Group was designed for cost-effective, low-power embedded control in industrial equipment - emphasizing deterministic real-time response, integrated peripherals, and robust operation across extended temperature ranges.
FAQ
What is the maximum operating frequency of the DF38799FP4V?
The DF38799FP4V supports a maximum operating frequency of 20 MHz. This clock speed is achieved using the on-chip PLL with an external crystal or ceramic resonator connected to XTAL1/XTAL2. At 20 MHz, the DF38799FP4V delivers predictable instruction cycle timing essential for real-time control loops in applications such as motor drives and PLCs.
Does the DF38799FP4V include on-chip flash memory?
No, the DF38799FP4V features 128 KB of on-chip mask ROM, not flash. Mask ROM is programmed during wafer fabrication and cannot be reprogrammed in-system. This makes the DF38799FP4V suitable for high-volume, fixed-function applications where firmware stability and security are prioritized over field updates.
What communication interfaces are integrated into the DF38799FP4V?
The DF38799FP4V integrates three asynchronous serial interfaces (SCI0–SCI2), two I²C bus interfaces (IIC0 and IIC1), and supports synchronous serial communication via the serial array unit (SAU). All UARTs support framing error detection and automatic baud-rate detection, while both I²C modules comply with standard-mode (100 kbps) and fast-mode (400 kbps) specifications.
Is the DF38799FP4V pin-compatible with other H8/38799 family members?
Yes, the DF38799FP4V is pin-compatible with the H8/38799F and H8/38798 variants in the same LQFP-100 package. Pin assignments for power, reset, clocks, ADC inputs, and serial interfaces are identical across these models, enabling hardware reuse when migrating between ROM sizes or peripheral configurations.
What is the ADC resolution and channel count of the DF38799FP4V?
The DF38799FP4V includes a 10-bit successive-approximation ADC with 8 input channels (AD0–AD7). These channels are multiplexed onto port P2 pins and support hardware-triggered sampling synchronized to timer overflow or external events - enabling precise timing-critical measurements in motor control and sensor acquisition systems.
DF38799FP4V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- H8® H8/300H SLP
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- H8/300H
- Core Size:
- 16-Bit
- Speed:
- 4MHz
- Connectivity:
- I2C, IrDA, SCI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 75
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF38799FP4V FAQ
1.How can I place an order for DF38799FP4V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF38799FP4V 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 DF38799FP4V reliable?
The price and inventory of DF38799FP4V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF38799FP4V is usually 5 days.
3.What payment methods are accepted for DF38799FP4V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF38799FP4V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF38799FP4V?
DF38799FP4V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF38799FP4V 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 DF38799FP4V?
For technical support, including DF38799FP4V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF38799FP4V requirements.
6.How does Aetrix verify that DF38799FP4V is sourced from the original manufacturer or authorized distributors?
All DF38799FP4V 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 DF38799FP4V meets industry standards.
7.What is the process for return or replacement of DF38799FP4V?
All DF38799FP4V units undergo pre-shipment inspection (PSI). If there is an issue with DF38799FP4V, 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 DF38799FP4V part is unused and in its original packaging.
Return procedure for DF38799FP4V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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