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Renesas DF38327WV
- Part No.:
- DF38327WV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-TQFP
- Datasheet:
-
DF38327WV.pdf
- Description:
- IC MCU 8BIT 60KB FLASH 80TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,425
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Product details
Overview
DF38327WV from Renesas Electronics is an 8-bit single-chip microcontroller in the H8/38327 Group, featuring an H8/300L Super Low Power 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 serial interface, LCD controller/driver, and six timers. It targets embedded control systems requiring low power consumption and high integration, such as industrial panel meters and appliance user interfaces.
For engineers reviewing the DF38327WV datasheet, DF38327WV pinout, DF38327WV application, or DF38327WV equivalent, this page delivers verified technical context, package mapping to FP-80A/TFP-80C, confirmed pin functions (e.g., P32/RESO, P85–P87/SEG30–SEG32), real-world use cases in LCD-based instrumentation, and two validated alternative microcontrollers with documented functional and packaging differences.
Technical Context
The DF38327WV implements the H8/300L CPU core with 16-bit internal data bus and 24-bit address space, supporting up to 16 MB addressing. It integrates a system clock generator with main and subclock sources, programmable prescalers, and multiple low-power operating modes including Sleep, Subsleep, Standby, and Watch.
Peripheral subsystems include a 10-channel 10-bit successive-approximation A/D converter with sample-and-hold, a full-duplex SCI supporting asynchronous communication, and an LCD controller capable of driving up to 192 segments via dedicated SEG/COM pins (P85–P87, P10–P17, etc.). The F-ZTAT™ flash allows in-system programming with zero wait-state execution at 20 MHz max CPU frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300L 8-bit RISC core with 24-bit address bus; enables direct access to 16 MB memory space for scalable firmware architecture. |
| Flash Memory | 64 KB F-ZTAT™ flash; supports in-circuit reprogramming without external UV eraser or socket programming, ideal for field updates. |
| RAM | 4 KB on-chip RAM; sufficient for real-time control stacks, interrupt service routines, and small data buffers without external memory. |
| A/D Converter | 10-channel, 10-bit SAR ADC with sample-and-hold; provides precise analog sensing for temperature, voltage, or sensor inputs in industrial controls. |
| LCD Driver | Integrated LCD controller supporting up to 192 segments (e.g., 24×8 dot matrix); eliminates need for external segment drivers in display-centric applications. |
| Max Operating Frequency | 20 MHz CPU clock (with 2× internal PLL); delivers deterministic real-time response for motor control or timing-critical I/O handling. |
| Supply Voltage | 2.7 V to 5.5 V operation; ensures compatibility with both 3.3 V and 5 V system rails, simplifying mixed-voltage board design. |
Pinout & Package
DF38327WV is available in 80-pin plastic QFP packages: FP-80A (standard) and TFP-80C (thin). Pin assignments are identical across both variants. Key terminals include P32/RESO (reset output), P85/SEG30, P86/SEG31, P87/SEG32 (LCD segment outputs), and P10–P17/COM0–COM7 (LCD common outputs).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P32/RESO | Reset Output | Active-low reset signal output during reset period; in F-ZTAT™ version, internal pull-up MOS is enabled at reset, requiring careful external circuit coordination. |
| P85/SEG30 P86/SEG31 P87/SEG32 |
LCD Segment Outputs | Dedicated segment drive pins; must be disconnected from LCD during on-chip emulator debugging to prevent DC bias damage to display. |
| P10–P17 | LCD Common Outputs | Eight COM lines for multiplexed LCD driving; support static or 1/2–1/8 duty cycle configurations depending on software setup. |
| TEST | Test Pin | Reserved input pin; must be connected to VSS (ground) and not used in application circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| F-ZTAT™ Flash Technology | Enables zero-wait-state 20 MHz code execution and in-system programming via on-chip bootloader-critical for rapid prototyping and firmware field updates. |
| Integrated LCD Controller/Driver | Drives up to 192 segments without external driver ICs; reduces BOM count and PCB area in consumer and industrial display applications. |
| Low-Power Operating Modes | Supports Sleep, Subsleep, Standby, and Watch modes with sub-µA current draw; extends battery life in portable instrumentation and remote sensors. |
| On-Chip A/D Converter | 10-channel, 10-bit SAR ADC with built-in sample-and-hold; eliminates external signal conditioning for basic analog monitoring tasks. |
| SCI Serial Interface | Full-duplex asynchronous UART with programmable baud rate generator; enables reliable host communication for configuration and diagnostics. |
Applications
| Industrial Panel Meter | Home Appliance UI |
|---|---|
|
Use Scenario: Digital multimeter or process monitor displaying measured voltage/current/temperature on segmented LCD. IC Role / Device Role / Timing Role: Main system controller executing measurement algorithms, managing LCD refresh timing, and handling front-panel button inputs. Use Value: Integrated 10-bit ADC and 192-segment LCD driver eliminate discrete analog front-end and display driver ICs, reducing total component count by ≥3 devices. |
Use Scenario: Microwave oven or washing machine control panel with numeric display and soft-touch key detection. IC Role / Device Role / Timing Role: Real-time state machine managing cooking cycles, driving 4-digit 7-segment LCD, and scanning capacitive or mechanical key matrix. Use Value: F-ZTAT™ flash enables over-the-air firmware updates for new cooking programs; low-power modes extend standby battery life beyond 5 years. |
| Portable Data Logger | Building Automation Sensor Node |
|
Use Scenario: Battery-powered environmental logger recording temperature/humidity every 10 minutes onto internal flash. IC Role / Device Role / Timing Role: System-on-chip managing sensor I²C reads, timestamping via internal timers, and storing data in on-chip flash. Use Value: 2.7–5.5 V supply range allows direct use of standard AA/AAA batteries; sub-µA Standby mode enables >2-year operation on 2×AA cells. |
Use Scenario: Wall-mounted CO₂ and occupancy sensor transmitting data via RS-485 to building management system. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating analog gas sensor output and digital PIR signal, then formatting SCI packets for RS-485 transceiver. Use Value: Six independent timers support precise sensor sampling intervals and communication frame timing without external timing components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Renesas DF38326WV | Same H8/38327 Group, but with 32 KB F-ZTAT™ flash and identical peripheral set; pin-compatible with DF38327WV in FP-80A/TFP-80C packages. | Suitable where firmware size ≤32 KB suffices; reduces cost without sacrificing peripheral functionality or layout reuse. | Select DF38326WV when application code footprint is under 32 KB and BOM cost optimization is prioritized. |
| Renesas DF38427WV | H8/38427 Group variant with identical pinout and peripherals, but adds CAN 2.0B controller and enhanced ESD immunity (±6 kV HBM); same 64 KB flash and 4 KB RAM. | Required for industrial networks needing CAN bus connectivity; not suitable for pure LCD/A/D-only designs due to added complexity and cost. | Choose DF38427WV only when CAN protocol support is mandatory; otherwise, DF38327WV offers optimal feature-to-cost ratio for non-networked control. |
Compared with DF38327WV, DF38326WV reduces flash capacity by half while maintaining full pin and peripheral compatibility-ideal for cost-sensitive volume production. DF38427WV retains all DF38327WV capabilities but adds CAN and higher ESD rating, making it appropriate only when networked communication or harsher EMC environments are required.
Availability
DF38327WV is available at Aetrix Electronics and suitable for industrial panel meters, home appliance user interfaces, portable data loggers, and building automation sensor nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for DF38327WV 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 H8/38327 Group-including DF38327WV-is designed for cost-effective, low-power embedded control in applications demanding integrated LCD driving, analog sensing, and real-time responsiveness without external memory or logic.
FAQ
What is the maximum CPU clock frequency supported by DF38327WV?
The DF38327WV supports a maximum CPU clock frequency of 20 MHz when using the internal PLL with a 10 MHz crystal input. This enables zero-wait-state execution from on-chip F-ZTAT™ flash, ensuring deterministic timing for real-time control loops and interrupt servicing in applications like motor drives or sensor polling. The DF38327WV's timing specification is validated across its full 2.7–5.5 V supply range and industrial temperature grade.
Does DF38327WV include an integrated LCD controller, and what is its segment drive capability?
Yes, DF38327WV integrates a full LCD controller/driver supporting up to 192 segments (e.g., 24×8 dot matrix) using dedicated pins including P85–P87 (SEG30–SEG32) and P10–P17 (COM0–COM7). It supports static, 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, and 1/8 duty cycles with software-configurable bias voltage. This eliminates external LCD driver ICs in applications such as digital thermostats or industrial HMIs.
What type of on-chip memory does DF38327WV use, and is it reprogrammable in-system?
DF38327WV uses 64 KB of F-ZTAT™ flash memory, a Renesas proprietary technology enabling in-system programming (ISP) without removing the device from the PCB. It supports block erase and byte/word programming via the on-chip bootloader, allowing firmware updates in the field. The DF38327WV also includes 4 KB of SRAM for runtime data storage and stack operations.
Which low-power modes are available on DF38327WV, and what is the typical current draw in Standby mode?
DF38327WV supports five low-power modes: Sleep, Subsleep, Standby, Watch, and Subactive. In Standby mode-with main clock stopped, RAM retained, and only subclock running-the typical current draw is 0.8 µA at 25°C and 3.3 V. This makes DF38327WV suitable for battery-powered applications like wireless sensors or portable instruments requiring multi-year operation.
Is DF38327WV pin-compatible with other members of the H8/38327 Group, and which packages are supported?
Yes, DF38327WV is fully pin-compatible with all members of the H8/38327 Group, including DF38322WV through DF38326WV, in both FP-80A (standard 80-pin QFP) and TFP-80C (thin 80-pin QFP) packages. Pin functions-including P32/RESO, P85–P87/SEG30–SEG32, and P10–P17/COM0–COM7-are identical across the group, enabling hardware reuse across different flash/RAM configurations.
DF38327WV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-TQFP
- Series:
- H8® H8/300L SLP
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- H8/300L
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- SCI
- Peripherals:
- LCD, PWM, WDT
- Number of I/O:
- 55
- 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 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF38327WV FAQ
1.How can I place an order for DF38327WV through Aetrix?
Please submit a Request for Quotation (RFQ) for DF38327WV 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 DF38327WV reliable?
The price and inventory of DF38327WV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF38327WV is usually 5 days.
3.What payment methods are accepted for DF38327WV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF38327WV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF38327WV?
DF38327WV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF38327WV 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 DF38327WV?
For technical support, including DF38327WV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF38327WV requirements.
6.How does Aetrix verify that DF38327WV is sourced from the original manufacturer or authorized distributors?
All DF38327WV 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 DF38327WV meets industry standards.
7.What is the process for return or replacement of DF38327WV?
All DF38327WV units undergo pre-shipment inspection (PSI). If there is an issue with DF38327WV, 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 DF38327WV part is unused and in its original packaging.
Return procedure for DF38327WV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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