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Renesas DF38004FP4V
- Part No.:
- DF38004FP4V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
DF38004FP4V.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,633
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Product details
Overview
DF38004FP4V from Renesas Electronics is an 8-bit single-chip microcontroller in the H8/38004 Group, featuring a H8/300L CPU core, 16 kB mask ROM, 1 kB RAM, and operation at up to 16 MHz over 4.5–5.5 V. It integrates 10-bit × 4-channel ADC, UART (SCI), LCD controller (25 seg × 4 com), and multiple timers for embedded control in industrial and consumer systems.
For engineers reviewing the DF38004FP4V datasheet, DF38004FP4V pinout, DF38004FP4V application, or DF38004FP4V equivalent, this page delivers verified technical context, package mapping, functional specifications, and real-world use cases - all aligned with Renesas' H8/38004 Group Hardware Manual Rev.7.00 (2010).
Technical Context
The DF38004FP4V implements the H8/300L CPU architecture with instruction set compatibility to the H8/300, supporting 16-bit addressing and 8-bit data paths. It includes on-chip system-control modules: power-on reset (POR), low-voltage detection (LVD), and watchdog timer (WDT) with discrete configuration.
Peripheral integration includes one SCI channel (UART/clock mode), four 16-bit timers (Timer A, Timer F, AEC, WDT), and a dedicated LCD controller driving up to 100 segments. I/O capability comprises 39 programmable pins (9 input, 6 output, 39 bidirectional), with external interrupt support across 11 sources including internal wake-up triggers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300L 8-bit RISC core, instruction-compatible with H8/300; enables legacy code reuse and deterministic timing. |
| ROM Capacity | 16 kB mask ROM - fixed, production-optimized firmware storage with no field reprogrammability. |
| RAM Size | 1 kB on-chip RAM - sufficient for stack, variables, and small real-time buffers in resource-constrained systems. |
| Max Operating Frequency | 16 MHz at 4.5–5.5 V - supports responsive control loops and serial communication up to 115.2 kbps via SCI. |
| ADC Resolution & Channels | 10-bit × 4-channel SAR ADC - provides precision sensor interfacing (e.g., temperature, voltage monitoring) without external converters. |
| LCD Driver | 25 segment × 4 common - directly drives multiplexed character/segment displays in appliances and instrumentation. |
| Operating Voltage | 4.5 V to 5.5 V - compatible with standard 5 V logic rails and industrial power supplies. |
| Temperature Range | –20°C to +75°C (Standard grade) - validated for office equipment, home appliances, and industrial controls per Renesas quality classification. |
Pinout & Package
DF38004FP4V is housed in a 64-pin plastic QFP package designated FP-64A (14 mm × 14 mm, 0.8 mm pitch), compliant with JEDEC MS-026. Pin functions are defined per Renesas H8/38004 Group Hardware Manual Rev.7.00, Section 1.4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs ensure stable core and I/O rail decoupling; critical for noise immunity in mixed-signal operation. |
| OSC1, OSC2 | Crystal oscillator inputs | Supports external crystal (1–16 MHz) or ceramic resonator; required for precise timing in SCI and timer modules. |
| RESET | Active-low reset input | Asynchronous external reset; initiates hardware reset sequence including register initialization and program counter load. |
| P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77, P80–P87, P90–P97 | General-purpose I/O ports | 39 total I/O pins with individually configurable direction and pull-up options; used for button sensing, LED control, relay drivers, and sensor interfaces. |
| TXD, RXD | SCI serial transmit/receive | Full-duplex UART interface - enables host communication, firmware logging, and configuration via RS-232/RS-485 level shifters. |
| SEG0–SEG24, COM0–COM3 | LCD segment/common outputs | Direct drive of 4×25-segment LCD glass; eliminates need for external display controllers in cost-sensitive UI applications. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip POR and LVD | Ensures reliable startup and brown-out protection without external supervisor ICs - reduces BOM count and board space. |
| Integrated WDT (discrete mode) | Hardware-based timeout supervision independent of main CPU clock - prevents lockup in safety-critical control sequences. |
| 10-bit 4-channel ADC | Single-cycle conversion time ≤ 25 μs at 16 MHz - enables real-time analog monitoring (e.g., battery voltage, thermistor readings) within control loops. |
| SCI with clock mode | Configurable as UART or synchronous clock master/slave - supports both debug communication and peripheral synchronization (e.g., ADC triggering). |
| Low-power standby modes | HALT and STOP modes reduce current to <10 μA - extends battery life in portable or energy-harvesting devices. |
| Mask ROM security | Read-protection fuse prevents firmware extraction - protects proprietary algorithms and IP in volume-manufactured products. |
Applications
| Home Appliance Control | Industrial Panel Meter |
|---|---|
Use Scenario: Microcontroller in microwave oven control panel managing keypad scan, display update, cooking timer, and safety interlocks. IC Role / Device Role / Timing Role: Central system controller executing real-time state machine, coordinating LCD refresh (via COM/SEG outputs), and sampling door switch and temperature sensor via ADC. Use Value: Single-chip integration eliminates external display driver and UART-to-USB bridge, reducing bill-of-materials and PCB layer count. |
Use Scenario: Embedded meter in factory-floor power monitor displaying RMS voltage/current on 4-digit LCD with backlight control. IC Role / Device Role / Timing Role: Data acquisition and UI controller - reads isolated analog inputs via 10-bit ADC, formats values, and drives 25-segment LCD using built-in controller. Use Value: On-chip LCD driver and 16 MHz timing enable 60 Hz display refresh and sub-1% measurement resolution without external graphics IC. |
| Point-of-Sale Terminal Keypad | Thermostat User Interface |
Use Scenario: Keypad controller in retail terminal handling matrix scanning, debounce, and USB/serial reporting to host PC. IC Role / Device Role / Timing Role: Dedicated input processor - scans 4×4 key matrix using GPIO pins, debounces in firmware, and transmits keycodes via SCI to host MCU. Use Value: 39 I/O pins allow full matrix + status LEDs + buzzer drive; mask ROM ensures consistent, tamper-resistant firmware across thousands of units. |
Use Scenario: Residential thermostat managing temperature sensing, HVAC relay control, and 4-segment LCD display with ambient light adjustment. IC Role / Device Role / Timing Role: System-on-chip controller - acquires NTC thermistor data via ADC, executes PID algorithm, drives LCD segments, and toggles relays via GPIO. Use Value: Integrated POR/LVD and WDT guarantee fail-safe operation during power fluctuations, preventing uncontrolled heating or cooling cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| H8/38004FP-64 | Same die, identical mask ROM content and pinout; differs only in Renesas part numbering convention (no "V" suffix). | No functional difference - used interchangeably in legacy designs where documentation references non-V variant. | Select H8/38004FP-64 only if sourcing from older inventory or matching schematic symbols labeled without "V". |
| R5F100PLGSP | RL78/G13 16-bit MCU with 32 kB flash, 4 kB RAM, and enhanced peripherals (I²C, DMA); requires different toolchain and layout. | Supports field firmware updates and larger applications but increases BOM cost and design complexity. | Choose R5F100PLGSP when future-proofing for OTA updates or expanding functionality beyond DF38004FP4V's mask-ROM and peripheral limits. |
Compared with H8/38004FP-64, DF38004FP4V offers identical functionality under Renesas' post-merger naming; versus R5F100PLGSP, it trades flash flexibility and modern peripherals for lower unit cost, smaller footprint, and guaranteed firmware immutability in high-volume production.
Availability
DF38004FP4V is available at Aetrix Electronics and suitable for industrial control panels, home appliance UIs, and portable instrumentation requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for DF38004FP4V 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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.
The DF38004FP4V belongs to the H8/38004 Group - a family of low-power, cost-optimized 8-bit MCUs designed for high-volume consumer and industrial applications where mask-ROM firmware stability and integrated LCD/ADC capabilities are essential.
FAQ
What is the operating voltage range for DF38004FP4V?
The DF38004FP4V operates from 4.5 V to 5.5 V DC. This range ensures compatibility with standard 5 V power supplies and provides margin against ripple and dropouts. Operation outside this range may cause undefined behavior or permanent damage. The device does not support 3.3 V or lower supply voltages - no internal voltage regulator is present, and I/O levels are strictly 5 V tolerant.
Does DF38004FP4V support in-circuit debugging?
Yes, DF38004FP4V supports on-chip emulation via dedicated pins (P95, P33–P35), but with constraints: P95 is reserved exclusively for emulator use and unavailable as general I/O; P33–P35 require external hardware for user access. Debugging uses the H8/300L on-chip emulator protocol and requires Renesas E8/E8a debuggers and High-performance Embedded Workshop IDE.
Is DF38004FP4V pin-compatible with other H8/38004 Group variants?
Yes, DF38004FP4V uses the FP-64A package and shares identical pinout with all H8/38004 Group members in the same package variant (e.g., H8/38004FP-64). Pin functions, electrical characteristics, and physical layout are fully aligned - enabling direct PCB reuse across mask-ROM configurations within the group.
What LCD configuration does DF38004FP4V support?
DF38004FP4V integrates a static/dynamic LCD controller supporting up to 25 segments and 4 commons - enabling direct drive of 4-digit, 7-segment displays or custom 100-point character glass. It supports bias ratios of 1/2 or 1/3, frame frequency up to 60 Hz, and software-controllable contrast via internal resistor ladder or external voltage.
Can DF38004FP4V be used in automotive applications?
No, DF38004FP4V is classified as a Standard-grade Renesas product, qualified for computers, office equipment, home appliances, and industrial robots - not for automotive, medical, or safety-critical systems. It lacks AEC-Q100 qualification, extended temperature support (–40°C to +125°C), or fault-tolerant features required for vehicle ECUs.
DF38004FP4V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- H8® H8/300L SLP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8/300L
- Core Size:
- 8-Bit
- Speed:
- 4MHz
- Connectivity:
- SCI
- Peripherals:
- LCD, PWM, WDT
- Number of I/O:
- 39
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF38004FP4V FAQ
1.How can I place an order for DF38004FP4V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF38004FP4V 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 DF38004FP4V reliable?
The price and inventory of DF38004FP4V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF38004FP4V is usually 5 days.
3.What payment methods are accepted for DF38004FP4V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF38004FP4V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF38004FP4V?
DF38004FP4V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF38004FP4V 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 DF38004FP4V?
For technical support, including DF38004FP4V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF38004FP4V requirements.
6.How does Aetrix verify that DF38004FP4V is sourced from the original manufacturer or authorized distributors?
All DF38004FP4V 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 DF38004FP4V meets industry standards.
7.What is the process for return or replacement of DF38004FP4V?
All DF38004FP4V units undergo pre-shipment inspection (PSI). If there is an issue with DF38004FP4V, 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 DF38004FP4V part is unused and in its original packaging.
Return procedure for DF38004FP4V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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