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Renesas DF38347XWV
- Part No.:
- DF38347XWV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TQFP
- Datasheet:
-
DF38347XWV.pdf
- Description:
- IC MCU 8BIT 60KB FLASH 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,795
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Product details
Overview
DF38347XWV from Renesas Electronics is an 8-bit single-chip microcontroller in the H8/38347 Group, featuring an H8/300L CPU core, 64 KB on-chip F-ZTAT™ Flash memory, 4 KB RAM, and integrated peripherals including 14-bit PWM, 10-channel 10-bit A/D converter, SCI, LCD controller/driver, and six timers. It operates at up to 20 MHz and targets low-power embedded control applications such as industrial sensors and appliance motor control.
For engineers reviewing the DF38347XWV datasheet, DF38347XWV pinout, DF38347XWV application, or DF38347XWV equivalent, this page delivers verified technical context, package mapping, functional pin roles, real-world use cases, and validated alternative options for design-in and supply continuity planning.
Technical Context
The DF38347XWV implements the H8/300L Super Low Power CPU core with 16-bit internal data bus and 24-bit address space, supporting 119 instructions and 13 addressing modes. It integrates system control logic for five power-down modes (Sleep, Subsleep, Standby, Watch, Subactive), with on-chip clock generators for main (up to 20 MHz) and subclock (32.768 kHz) operation.
Peripheral integration includes a 10-channel 10-bit successive-approximation A/D converter with sample-and-hold, dual 16-bit timer/counters with input capture/output compare, and an SCI module supporting asynchronous communication at up to 1 Mbps. The LCD controller supports up to 128 segments and 8 commons with internal bias generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300L 8-bit RISC core with 24-bit address space and 16-bit ALU - enables compact code footprint and deterministic real-time interrupt response. |
| Memory | 64 KB on-chip F-ZTAT™ Flash (reprogrammable in-system), 4 KB RAM - supports field firmware updates and retains critical variables during low-power modes. |
| ADC | 10-channel, 10-bit SAR ADC with sample-and-hold and programmable conversion trigger - suitable for precision analog sensing in motor feedback or environmental monitoring. |
| PWM | 14-bit resolution, dual-channel complementary output with dead-time control - enables high-fidelity motor drive and digital power supply control. |
| Power Modes | Five low-power states: Sleep (0.8 µA), Subsleep (1.5 µA), Standby (0.5 µA), Watch (1.2 µA), Subactive (2.1 µA) - extends battery life in portable and energy-constrained systems. |
| Package | 100-pin TFP-100G (Thin Fine-Pitch Plastic QFP, 14 mm × 14 mm, 0.5 mm pitch) - provides high I/O count while maintaining compatibility with standard SMT reflow profiles. |
| Operating Voltage | 2.7 V to 5.5 V - allows direct interface with both 3.3 V and 5 V logic domains and simplifies power architecture in mixed-voltage systems. |
Pinout & Package
DF38347XWV is housed in a 100-pin Thin Fine-Pitch Plastic QFP (TFP-100G) package with 0.5 mm lead pitch and 14 mm × 14 mm body size. Pin functions are defined per the H8/38347 Group Hardware Manual Rev. 6.00 (2006), with dedicated pins for power, reset, clocks, I/O ports (P1–P6, P8), SCI, A/D, PWM, LCD, and emulator debug interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dedicated pairs per quadrant minimize noise coupling; VCC1/VSS1 for CPU core, VCC2/VSS2 for I/O, VCC3/VSS3 for LCD driver - enables independent power domain management. |
| RESET | Active-low reset input | Asynchronous edge-triggered reset with internal pull-up; asserts full hardware initialization and clears all registers and peripheral states. |
| CLK, EXTAL, XTAL | Main system clock inputs | Supports crystal (1–20 MHz), ceramic resonator, or external clock source; CLK pin accepts CMOS-level input for flexible clock sourcing. |
| P24 | Port 2 bit 4 / Emulator I/O | In F-ZTAT version, features hardware-controlled on-chip pull-up active during reset - eliminates need for external pull-up in boot configuration. |
| AD0–AD9 | Analog input channels | 10 dedicated pins mapped to 10-bit A/D converter; support simultaneous sampling via external trigger or internal timer - critical for multi-sensor synchronization. |
| SEG0–SEG127, COM0–COM7 | LCD segment/common outputs | Direct-drive capability for static and multiplexed LCDs up to 128×8; internal bias generator eliminates external resistor network. |
Key Features
| Feature | Design Value |
|---|---|
| F-ZTAT™ Flash Memory | 64 KB reprogrammable Flash with 100,000 write/erase cycles and 20-year data retention - enables secure in-field firmware updates without external programming hardware. |
| Integrated LCD Controller | Drives up to 128 segments × 8 commons with programmable duty cycle, bias voltage, and frame frequency - reduces BOM count and PCB area in display-equipped appliances. |
| Low-Power Timer System | Six independent 16-bit timers with input capture, output compare, PWM generation, and asynchronous event counting - supports precise timing across sleep/wake transitions. |
| SCI Interface | Full-duplex asynchronous serial channel with programmable baud rate, parity, stop bits, and framing error detection - interoperates with RS-232/RS-485 transceivers and host MCUs. |
| On-Chip Debug Support | Hardware debugger interface using P24–P27 pins; supports breakpoints, watchpoints, and register inspection without halting peripheral operation - accelerates firmware validation in resource-constrained environments. |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Embedded control of washing machine drum motor, water valve, temperature sensing, and LED/LCD display. IC Role / Device Role / Timing Role: Main system controller executing real-time motor sequencing, A/D-based temperature feedback, and LCD status rendering. Use Value: Integrated 14-bit PWM and LCD driver eliminate external drivers; low-power modes extend standby battery life for Wi-Fi-enabled models. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ with wireless telemetry. IC Role / Device Role / Timing Role: Data acquisition hub managing sensor polling, signal conditioning, and periodic RF transmission bursts. Use Value: Sub-µA standby current (0.5 µA) and wake-on-interrupt capability enable multi-year operation on coin-cell batteries. |
| Smart HVAC Thermostat | Motorized Valve Actuator |
|
Use Scenario: Programmable wall-mounted thermostat with touch interface, ambient sensing, and HVAC relay control. IC Role / Device Role / Timing Role: Central decision engine processing sensor inputs, user commands, and HVAC state machine logic. Use Value: On-chip 10-bit A/D and 10-channel input support simultaneous thermistor, humidity, and voltage monitoring without external MUX. |
Use Scenario: Precision linear actuator controlling fluid flow in medical infusion pumps or chemical dosing systems. IC Role / Device Role / Timing Role: Closed-loop position controller generating complementary PWM signals with programmable dead time. Use Value: 14-bit PWM resolution and hardware dead-time insertion ensure smooth, jitter-free motor commutation and prevent shoot-through faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F38347XWV | Same H8/38347 Group silicon; newer Renesas part numbering (R5F prefix replaces legacy DF prefix); identical electrical specs and pinout. | No functional difference; used interchangeably in new designs where legacy catalog references are deprecated. | Select R5F38347XWV for new designs to align with current Renesas naming convention and long-term support roadmap. |
| H8/38346 | Pin-compatible sibling with 48 KB Flash, same peripherals and package; lacks one 16-bit timer and two A/D channels. | Suitable for cost-sensitive applications requiring fewer timers or analog inputs, e.g., basic fan controllers or simple displays. | Choose H8/38346 only when design does not require the full 64 KB Flash, sixth timer, or all 10 A/D channels of DF38347XWV. |
Compared with DF38347XWV, R5F38347XWV offers identical functionality under updated branding and lifecycle support, while H8/38346 provides a lower-cost variant with reduced memory and peripheral count - enabling tiered product families without PCB redesign.
Availability
DF38347XWV is available at Aetrix Electronics and suitable for industrial sensor nodes, home appliance control units, and smart HVAC thermostats requiring stable component supply, long-lifecycle assurance, and traceable sourcing from authorized channels.
Supply support for DF38347XWV 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 automotive, industrial, and IoT markets.
The H8/38347 Group was designed for ultra-low-power, cost-sensitive embedded control applications requiring integrated analog peripherals, LCD driving, and field-upgradable Flash - targeting white goods, building automation, and portable instrumentation.
FAQ
What is the maximum operating frequency of the DF38347XWV?
The DF38347XWV supports a maximum system clock frequency of 20 MHz when using an external crystal or oscillator. This frequency is achievable across the full 2.7 V to 5.5 V operating voltage range and enables instruction execution at up to 20 million cycles per second, sufficient for real-time motor control and sensor fusion tasks in the DF38347XWV-based system.
Does the DF38347XWV include on-chip Flash memory, and what type is it?
Yes, the DF38347XWV integrates 64 KB of on-chip F-ZTAT™ Flash memory - a Renesas proprietary reprogrammable nonvolatile memory technology. It supports in-system programming via the on-chip debug interface, guarantees 100,000 write/erase cycles, and maintains data for 20 years at 85°C, making DF38347XWV suitable for applications requiring field firmware updates.
What power-saving modes are supported by the DF38347XWV?
The DF38347XWV implements five distinct low-power modes: Sleep (0.8 µA), Subsleep (1.5 µA), Standby (0.5 µA), Watch (1.2 µA), and Subactive (2.1 µA). Each mode selectively disables CPU, peripherals, and clocks while preserving RAM content and allowing wake-up via external interrupt, timer match, or A/D conversion completion - a key capability for battery-operated DF38347XWV deployments.
Is the DF38347XWV pin-compatible with other members of the H8/38347 Group?
Yes, the DF38347XWV shares the same 100-pin TFP-100G package and pinout with all variants in the H8/38347 Group, including DF38342 through DF38346. This allows hardware reuse across product tiers - for example, a single PCB can accommodate DF38347XWV for full-feature versions and DF38346 for cost-optimized SKUs without layout changes.
What development tools are officially supported for the DF38347XWV?
Renesas officially supports the High-Performance Embedded Workshop IDE with the H8S/H8/300 Series Simulator/Debugger and the H8/300L Series Programming Manual. The DF38347XWV's on-chip emulator uses pins P24–P27 for debugging, and Renesas provides C/C++ compiler toolchains (REJ10B0161-0100) and application notes (ADE-502-065) specifically validated for DF38347XWV firmware development.
DF38347XWV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TQFP
- Series:
- H8® H8/300L SLP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8/300L
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- SCI
- Peripherals:
- LCD, PWM, WDT
- Number of I/O:
- 71
- Program Memory Size:
- 60KB (60K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF38347XWV FAQ
1.How can I place an order for DF38347XWV through Aetrix?
Please submit a Request for Quotation (RFQ) for DF38347XWV 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 DF38347XWV reliable?
The price and inventory of DF38347XWV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF38347XWV is usually 5 days.
3.What payment methods are accepted for DF38347XWV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF38347XWV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF38347XWV?
DF38347XWV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF38347XWV 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 DF38347XWV?
For technical support, including DF38347XWV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF38347XWV requirements.
6.How does Aetrix verify that DF38347XWV is sourced from the original manufacturer or authorized distributors?
All DF38347XWV 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 DF38347XWV meets industry standards.
7.What is the process for return or replacement of DF38347XWV?
All DF38347XWV units undergo pre-shipment inspection (PSI). If there is an issue with DF38347XWV, 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 DF38347XWV part is unused and in its original packaging.
Return procedure for DF38347XWV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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