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Renesas DF2328BVF25WV
- Part No.:
- DF2328BVF25WV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-BFQFP
- Datasheet:
-
DF2328BVF25WV.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 128QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,915
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Product details
Overview
DF2328BVF25WV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8S/2328 Group, featuring an H8S/2000 CPU core, 256 KB on-chip F-ZTAT™ flash memory, 16 KB RAM, and integrated peripherals including TPU, SCI, A/D converter, D/A converter, WDT, and DMA controller. It operates at up to 25 MHz and targets embedded control systems requiring field-programmable nonvolatile storage and real-time I/O handling.
For engineers reviewing the DF2328BVF25WV datasheet, DF2328BVF25WV pinout, DF2328BVF25WV application, or DF2328BVF25WV equivalent, this page delivers verified technical identity, package mapping (TFP-120), confirmed pin functions, key timing and memory parameters, and two validated alternative parts for industrial control and motor drive designs.
Technical Context
The DF2328BVF25WV implements the H8S/2000 32-bit internal architecture with 16-bit external bus interface, supporting ROM-enabled and ROM-disabled expansion modes via MD0–MD2 mode pins. It integrates a 16-bit Timer Pulse Unit (TPU) with 8 channels, asynchronous serial communication (SCI) with programmable baud rates up to 38.4 kbps at 25 MHz, and a 10-bit A/D converter with 8 input channels.
Its flash memory supports ≥100 rewrite cycles with 10-year data retention, 10–200 ms programming time per 128-byte block, and 50–1000 ms erase time per block. The device uses a dedicated FWE pin for flash write enable in F-ZTAT versions and excludes WDTOVF functionality in those variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 16-bit core with 32-bit internal architecture - enables efficient C-language execution and deterministic interrupt latency for real-time control. |
| Max Operating Frequency | 25 MHz - sets maximum instruction throughput and peripheral timing budget for synchronous interfaces like SCI and TPU. |
| On-chip Memory | 256 KB F-ZTAT™ flash + 16 KB RAM - supports in-field firmware updates without external programming hardware and local variable/data buffering. |
| A/D Converter | 10-bit resolution, 8-channel multiplexed input - provides sufficient dynamic range for analog sensor interfacing in motor control and power supply monitoring. |
| Serial Interface | SCI with asynchronous mode, baud rate up to 38.4 kbps at φ = 25 MHz - enables reliable host communication and debug logging without external UART ICs. |
| Timer Resource | 16-bit TPU with 8 independent channels - supports PWM generation, input capture, and quadrature decoding for position/speed feedback in motion control. |
| Flash Endurance | ≥100 rewrite cycles, 10-year data retention - ensures long-term reliability for parameter storage and firmware patching in unattended equipment. |
Pinout & Package
DF2328BVF25WV is housed in a 120-pin thin fine-pitch plastic QFP (TFP-120) package with 0.4 mm lead pitch, designed for high-density PCB layouts and industrial temperature operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RES | Reset Input | Active-low asynchronous reset signal - initiates hardware initialization sequence and clears internal registers and I/O states. |
| FWE | Flash Write Enable | Enables flash memory programming/erase operations - must be asserted under controlled voltage and timing conditions per flash spec. |
| P20/PO0/TIOCA3 | Multi-function I/O Pin | Configurable as general-purpose output (PO0), timer I/O (TIOCA3), or port P20 - supports flexible peripheral routing without external logic. |
| MD0–MD2 | Mode Selection Inputs | Set operating mode (e.g., Mode 2 = ROM-enabled expansion) at power-on - determines memory map configuration and bus interface behavior. |
| VCC, VSS | Power Supply Pins | Core and I/O supply (5 V ±10%) - requires local decoupling per Renesas layout guidelines to maintain noise immunity and timing stability. |
Key Features
| Feature | Design Value |
|---|---|
| F-ZTAT™ Flash Memory | 256 KB reprogrammable flash with ≤200 ms/128-byte programming - eliminates need for external EEPROM or boot ROM in production firmware updates. |
| Integrated Analog Peripherals | 10-bit A/D (8 ch) + 8-bit D/A (2 ch) - enables closed-loop analog control (e.g., current/voltage regulation) without external converters. |
| DMA Controller (DMAC) | Supports memory-to-peripheral and peripheral-to-memory transfers - offloads CPU during high-bandwidth data movement (e.g., ADC sampling bursts). |
| Watchdog Timer (WDT) | Independent free-running timer with windowed refresh - detects software hangs and forces safe system recovery in safety-critical embedded applications. |
| 16-bit Timer Pulse Unit (TPU) | 8-channel, 16-bit timer with input capture, output compare, and PWM generation - directly controls motor phases, LED dimming, or encoder counting. |
Applications
| Industrial Motor Control | Programmable Logic Controller (PLC) I/O Module |
|---|---|
Use Scenario: Closed-loop speed and position control of 3-phase BLDC motors in factory automation systems. IC Role / Device Role / Timing Role: Main system controller executing PID algorithms, generating 6-channel complementary PWM via TPU, sampling current sensors via A/D, and communicating status via SCI. Use Value: On-chip 256 KB flash stores multiple motor profiles and calibration tables; 16 KB RAM buffers real-time sensor data and control outputs without external SRAM. |
Use Scenario: Modular digital input/output expansion unit for DIN-rail mounted PLCs handling discrete sensor/actuator signals. IC Role / Device Role / Timing Role: Local intelligence node managing opto-isolated inputs, relay drivers, and fieldbus communication (e.g., Modbus RTU over SCI). Use Value: Integrated DMAC handles high-speed polling of 16+ digital inputs without CPU intervention; F-ZTAT flash allows remote firmware updates for protocol stack upgrades. |
| Intelligent Power Supply Monitor | Embedded HVAC Controller |
Use Scenario: Real-time monitoring and protection of AC/DC power supplies in telecom rectifiers and server PSUs. IC Role / Device Role / Timing Role: Analog front-end processor acquiring voltage/current/temperature via A/D, calculating RMS values, triggering shutdown via GPIO, and reporting faults via SCI. Use Value: 10-bit A/D resolution meets IEC 62368-1 measurement accuracy requirements; watchdog timer ensures fail-safe response to firmware lockup during fault conditions. |
Use Scenario: Standalone room-level climate controller managing fan speed, valve position, and occupancy sensing in commercial buildings. IC Role / Device Role / Timing Role: Central MCU coordinating temperature/humidity sensing (A/D), actuator control (D/A + TPU PWM), and BACnet MS/TP communication (SCI). Use Value: Dual 8-bit D/A outputs drive analog actuators directly; 256 KB flash stores seasonal scheduling logic and calibration offsets across product lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F2328B | Same H8S/2328 Group, identical pinout and memory map, but mask ROM instead of F-ZTAT flash - no field reprogramming capability. | Suitable only for fixed-function, high-volume products where firmware never changes post-manufacture. | Select HD64F2328B only if firmware is finalized and cost sensitivity outweighs field update flexibility. |
| H8S/2329F | Higher integration: adds CAN controller and USB interface; same 256 KB flash, but different pin assignment for CAN_TX/RX and USB_DP/DM. | Required when system-level communication mandates CAN bus or USB device connectivity - not drop-in compatible due to pinout change. | Choose H8S/2329F only when CAN or USB is mandatory; otherwise DF2328BVF25WV offers lower BOM cost and simpler layout. |
Compared with HD64F2328B and H8S/2329F, DF2328BVF25WV uniquely balances field-upgradable flash, full peripheral set (TPU, A/D, D/A, SCI, WDT), and TFP-120 pin compatibility - making it optimal for cost-sensitive, update-capable industrial controllers where CAN/USB are unnecessary.
Availability
DF2328BVF25WV is available at Aetrix Electronics and suitable for industrial motor control, PLC I/O modules, and intelligent power supply monitors requiring stable component supply, long-lifecycle support, and guaranteed flash reprogrammability.
Supply support for DF2328BVF25WV 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 H8S/2328 Group, including DF2328BVF25WV, was designed for high-reliability embedded control applications demanding integrated analog peripherals, deterministic real-time performance, and field-upgradable firmware in cost-constrained industrial environments.
FAQ
What is the flash memory type and endurance specification for DF2328BVF25WV?
The DF2328BVF25WV features 256 KB of F-ZTAT™ flash memory, a Renesas proprietary flash technology enabling in-system programming. It guarantees ≥100 rewrite cycles with 10-year data retention at rated operating conditions. Programming time is 10–200 ms per 128-byte block, and erase time is 50–1000 ms per block - critical for firmware update reliability in deployed DF2328BVF25WV units.
Does DF2328BVF25WV support CAN bus communication?
No, DF2328BVF25WV does not include a CAN controller. Its integrated serial interface is limited to asynchronous SCI (UART-like). For CAN-capable alternatives in the same family, consider the H8S/2329F, which adds a CAN module but uses a different pinout and package - DF2328BVF25WV remains optimized for non-CAN applications like motor control and sensor processing where SCI suffices.
What package and pin count does DF2328BVF25WV use?
DF2328BVF25WV is packaged in a 120-pin thin fine-pitch plastic QFP (TFP-120) with 0.4 mm lead pitch. This package is confirmed in Renesas Hardware Manual Rev.6.00 (Figure F.1) and supports industrial temperature range operation. Pin functions - including RES, FWE, MD0–MD2, and multi-function I/O like P20/PO0/TIOCA3 - are fully documented for DF2328BVF25WV in the same manual.
How does the watchdog timer (WDT) function in DF2328BVF25WV?
The DF2328BVF25WV includes a dedicated watchdog timer (WDT) that operates independently of the main CPU clock. It requires periodic refresh within a configurable timeout window to prevent system reset. This feature ensures fail-safe recovery from software hangs or infinite loops - a key requirement for DF2328BVF25WV deployments in unattended industrial equipment where reliability is paramount.
Is DF2328BVF25WV pin-compatible with other H8S/2328 Group members?
Yes, DF2328BVF25WV shares the same TFP-120 pinout and electrical characteristics with other F-ZTAT versions in the H8S/2328 Group, including HD64F2328B (mask ROM variant). However, it is not pin-compatible with FP-128B-packaged variants or H8S/2329 Group devices due to differing pin counts and assignments - DF2328BVF25WV's compatibility is strictly within its TFP-120 F-ZTAT subfamily.
DF2328BVF25WV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-BFQFP
- Series:
- H8® H8S/2300
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8S/2000
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- SCI, SmartCard
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 86
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 8x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF2328BVF25WV FAQ
1.How can I place an order for DF2328BVF25WV through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2328BVF25WV 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 DF2328BVF25WV reliable?
The price and inventory of DF2328BVF25WV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2328BVF25WV is usually 5 days.
3.What payment methods are accepted for DF2328BVF25WV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2328BVF25WV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2328BVF25WV?
DF2328BVF25WV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2328BVF25WV 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 DF2328BVF25WV?
For technical support, including DF2328BVF25WV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2328BVF25WV requirements.
6.How does Aetrix verify that DF2328BVF25WV is sourced from the original manufacturer or authorized distributors?
All DF2328BVF25WV 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 DF2328BVF25WV meets industry standards.
7.What is the process for return or replacement of DF2328BVF25WV?
All DF2328BVF25WV units undergo pre-shipment inspection (PSI). If there is an issue with DF2328BVF25WV, 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 DF2328BVF25WV part is unused and in its original packaging.
Return procedure for DF2328BVF25WV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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