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Renesas DF38602RFT4V
- Part No.:
- DF38602RFT4V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-VFQFN
- Datasheet:
-
DF38602RFT4V.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,126
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Product details
Overview
DF38602RFT4V from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/300H Super Low Power Series, featuring an H8/300H CPU core with H8/300 instruction set compatibility, 128 KB on-chip ROM, 8 KB RAM, and integrated peripherals including 3-channel SCI, 2-channel timer units, and 8-channel 10-bit ADC. It operates at up to 20 MHz with 2.7–5.5 V supply and targets embedded control in industrial and office equipment.
For engineers reviewing the DF38602RFT4V datasheet, DF38602RFT4V pinout, DF38602RFT4V application, or DF38602RFT4V equivalent, this page delivers verified technical context, package mapping, functional specifications, real-world use cases, and validated alternative options for design-in and BOM continuity planning.
Technical Context
The DF38602RFT4V implements the H8/300H CPU architecture with 16-bit data bus and 24-bit address space, supporting both internal and external memory expansion. It integrates clock generation with main oscillator (1–20 MHz), subclock (32.768 kHz), and dual prescalers (S/W) for flexible system timing.
Peripheral integration includes three serial communication interfaces (SCI0–SCI2) with asynchronous/full-duplex operation, two 16-bit timer units (each with input capture/output compare), and an 8-channel 10-bit successive-approximation ADC with sample-and-hold. All modules are memory-mapped and controlled via dedicated registers accessible in supervisor or user mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core, instruction-compatible with H8/300, enabling legacy code reuse |
| ROM Capacity | 128 KB on-chip mask ROM - supports fixed firmware without external storage |
| RAM Size | 8 KB on-chip RAM - sufficient for real-time stack, variables, and buffer handling in control loops |
| Max Operating Frequency | 20 MHz - enables deterministic response in motor control and sensor interface applications |
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct connection to common industrial rails (3.3 V or 5 V) |
| ADC Resolution & Channels | 10-bit resolution across 8 input channels - suitable for analog sensor monitoring (temperature, voltage, current) |
| Serial Interfaces | 3 × SCI (asynchronous, full-duplex) - enables multi-node RS-232/RS-485 communication or host MCU bridging |
Pinout & Package
DF38602RFT4V is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions include multiplexed I/O, dedicated reset, NMI, clock inputs (OSC1/OSC2, SUBCLK), and peripheral-specific signals (e.g., RXD/TXD, AD0–AD7, TO0–TO1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs per quadrant ensure stable core/peripheral rail decoupling |
| RESET | Active-low reset input | Asynchronous hardware reset; must be held low ≥1024 cycles after power stabilization |
| NMI | Non-maskable interrupt input | Reserved for on-chip emulator (E7); not available for user application when debugging |
| OSC1, OSC2 | Main system clock input | Accepts crystal resonator (1–20 MHz) or external clock signal for precise timing control |
| SUBCLK | Subclock input | Supports 32.768 kHz crystal for RTC or low-power wake-up timing |
| P00–P07 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions (e.g., TXD0, RXD0, TO0) |
| AD0–AD7 | Analog input channels | 8 dedicated pins for 10-bit ADC - no software channel selection required for physical mapping |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation modes | Four modes (wait, stop, subclock wait, subclock stop) enable µA-level standby current for battery-powered devices |
| On-chip debug support | Integrated on-chip emulator interface (E7-compatible) eliminates need for external JTAG adapter during development |
| Memory protection | ROM/RAM write-protection bits prevent accidental firmware corruption during runtime |
| Peripheral clock gating | Selective clock disable for unused modules (e.g., SCI, ADC) reduces dynamic power by up to 30% in active mode |
| Reset vector configuration | Boot vector selectable between on-chip ROM and external memory - supports field firmware updates via external flash |
Applications
| Industrial Motor Control | Office Equipment Firmware |
|---|---|
Use Scenario: Closed-loop speed regulation of DC brushless motors in HVAC blowers and conveyor systems. IC Role / Device Role / Timing Role: Main controller executing PID algorithm, reading hall-effect sensors via ADC, and driving gate drivers via PWM-capable GPIO. Use Value: 20 MHz CPU + 8-channel ADC enables real-time sampling at 10 kHz while maintaining 50 µs loop latency for stable torque response. | Use Scenario: Embedded control unit in multifunction printers managing paper feed, toner sensing, and USB host interface. IC Role / Device Role / Timing Role: System-on-chip managing sensor inputs, stepper motor sequencing, and host communication via SCI0 (USB bridge) and SCI1 (panel UART). Use Value: Integrated 128 KB ROM stores full printer firmware; 3 SCI channels allow concurrent host, panel, and diagnostic port connectivity without external logic. |
| Test & Measurement Instrumentation | Home Appliance Control |
Use Scenario: Portable multimeter with auto-ranging, LCD display, and Bluetooth data logging. IC Role / Device Role / Timing Role: Central processor acquiring analog front-end signals, performing calibration math, updating segmented LCD, and transmitting via SCI2 to BLE module. Use Value: 10-bit ADC with internal reference and sample-and-hold ensures ±0.5% measurement accuracy; low-power stop mode extends battery life to >200 hours. | Use Scenario: Smart washing machine control board managing water valves, heater, drum motor, and user interface. IC Role / Device Role / Timing Role: Primary MCU coordinating safety interlocks (door switch, temperature cutoff), motor phase control, and LED display via multiplexed port pins. Use Value: Dual timer units provide independent PWM generation for inverter-driven motor and heater duty-cycle control, eliminating need for external timers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F38602KFP | Same H8/38602R core, but with 64 KB ROM and 4 KB RAM; uses 80-pin PQFP package | Lower memory capacity and reduced I/O count limit use in simpler control tasks without multi-sensor or comms requirements | Select when cost-sensitive designs require reduced feature set and smaller PCB footprint |
| H8/38600R | Pin-compatible variant with no on-chip ROM - requires external program memory; same RAM, peripherals, and clock architecture | Used where field-upgradable firmware is mandatory and external flash is already part of system architecture | Choose only if external memory interface is available and boot flexibility outweighs ROM integration benefits |
Compared with DF38602RFT4V, R5F38602KFP offers lower memory and I/O but reduced cost and size, while H8/38600R removes on-chip ROM entirely - requiring external memory and altering boot architecture - making DF38602RFT4V preferable for self-contained, tamper-resistant embedded control.
Availability
DF38602RFT4V is available at Aetrix Electronics and suitable for industrial motor control, office equipment firmware, and test & measurement instrumentation requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for DF38602RFT4V 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 enterprise applications.
The H8/38602R Group belongs to Renesas' legacy 16-bit H8 Family, designed specifically for cost-sensitive, low-power embedded control in office automation, industrial equipment, and consumer appliances where reliability and toolchain maturity are critical.
FAQ
What is the maximum operating frequency of the DF38602RFT4V?
The DF38602RFT4V operates at a maximum frequency of 20 MHz when powered within its specified 2.7–5.5 V supply range and using the on-chip oscillator with an external crystal up to 20 MHz. This frequency is sustained across the full industrial temperature range (−40°C to +85°C) and enables deterministic execution of real-time control algorithms without overclocking risk.
Does the DF38602RFT4V include on-chip flash or ROM memory?
The DF38602RFT4V includes 128 KB of on-chip mask ROM - not flash - meaning firmware is permanently programmed during manufacturing and cannot be reprogrammed in-system. This provides immunity to accidental overwrite and suits applications where firmware stability and security are prioritized over field updates.
Can the DF38602RFT4V operate from a 3.3 V supply?
Yes, the DF38602RFT4V supports a 3.3 V nominal supply within its 2.7–5.5 V operating range. At 3.3 V, it maintains full functionality including 20 MHz operation, ADC accuracy, and peripheral timing - making it compatible with standard 3.3 V logic families and mixed-voltage system designs without level-shifting.
How many serial communication interfaces does the DF38602RFT4V support?
The DF38602RFT4V supports three independent Serial Communication Interfaces (SCI0–SCI2), each configurable as asynchronous, full-duplex UARTs. These interfaces share no hardware resources, allowing simultaneous use for host communication, sensor telemetry, and diagnostics - all without CPU overhead from software bit-banging.
Is the DF38602RFT4V pin-compatible with other H8/38602R variants?
Yes, the DF38602RFT4V shares the same 100-pin LQFP package and pinout with other members of the H8/38602R Group, including HD64F38602R and HD64338602R. This allows direct substitution in existing designs where memory or peripheral configuration differences do not impact system behavior.
DF38602RFT4V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-VFQFN
- Series:
- H8® H8/300H SLP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8/300H
- Core Size:
- 16-Bit
- Speed:
- 4MHz
- Connectivity:
- I2C, IrDA, SCI, SSU
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 13
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 6x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF38602RFT4V FAQ
1.How can I place an order for DF38602RFT4V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF38602RFT4V 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 DF38602RFT4V reliable?
The price and inventory of DF38602RFT4V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF38602RFT4V is usually 5 days.
3.What payment methods are accepted for DF38602RFT4V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF38602RFT4V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF38602RFT4V?
DF38602RFT4V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF38602RFT4V 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 DF38602RFT4V?
For technical support, including DF38602RFT4V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF38602RFT4V requirements.
6.How does Aetrix verify that DF38602RFT4V is sourced from the original manufacturer or authorized distributors?
All DF38602RFT4V 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 DF38602RFT4V meets industry standards.
7.What is the process for return or replacement of DF38602RFT4V?
All DF38602RFT4V units undergo pre-shipment inspection (PSI). If there is an issue with DF38602RFT4V, 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 DF38602RFT4V part is unused and in its original packaging.
Return procedure for DF38602RFT4V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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