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Renesas DF3028X25V
- Part No.:
- DF3028X25V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TQFP
- Datasheet:
-
DF3028X25V.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,040
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Product details
Overview
DF3028X25V from Renesas Electronics is a 16-bit single-chip microcontroller in the H8/300H series, featuring an H8/300H CPU core with 32-bit internal architecture, 25 MHz maximum system clock, on-chip flash memory (F-ZTAT™), and integrated peripherals including three-channel SCI, 10-bit A/D converter, D/A converter, DMA controller, and programmable timing pattern controller. It targets compact embedded control systems requiring real-time I/O handling and low-power operation.
For engineers reviewing the DF3028X25V datasheet, DF3028X25V pinout, DF3028X25V application, or DF3028X25V equivalent, key selection criteria include its 25 MHz operation at 3.0–3.6 V supply, flash-based field-programmability, SCI support for ISO/IEC7816-3 smart card interface, and configurable standby modes for battery-powered devices.
Technical Context
The DF3028X25V implements the H8/300H CPU core with sixteen 16-bit general-purpose registers and a linear 16-Mbyte address space. Its memory subsystem supports independent data bus width and access cycle configuration per of eight address areas, enabling flexible external memory interfacing.
On-chip peripherals include a three-channel serial communication interface (SCI) with synchronous/asynchronous modes and ISO/IEC7816-3 smart card support, a 10-bit A/D converter with ≤5 kΩ permissible signal-source impedance (φ ≤ 13 MHz), and a D/A converter. Power management features allow individual module standby and software-controllable system clock division.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | H8/300H 16-bit CPU with 32-bit internal data path and 16-Mbyte linear address space |
| Max System Clock | 25 MHz - enables real-time processing for industrial control and communication interfaces |
| Supply Voltage | 3.0 V to 3.6 V - compatible with modern low-voltage embedded power rails |
| A/D Converter | 10-bit resolution, conversion time = 70 states (φ ≤ 13 MHz) - suitable for sensor signal acquisition with moderate speed and precision |
| D/A Converter | Integrated 8-bit D/A - provides analog output for actuator control or calibration signals |
| Memory Type | F-ZTAT™ flash memory - supports in-system programming and field firmware updates without mask ROM dependency |
| Operating Temp | –40°C to +85°C (wide-range specification) - qualified for industrial ambient conditions |
Pinout & Package
The DF3028X25V is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch), with dedicated pins for external bus interface, reset control, clock input (EXTAL/XTAL), and multi-function I/O ports (P0–P11).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RES | Reset Input | Active-low asynchronous reset input; drives chip into reset state when pulled low |
| RESO | Reset Output | Outputs watchdog-generated reset signal to external devices (flash version only) |
| FWE | Flash Write Enable | Controls flash memory write/erase operations; must be asserted during programming cycles |
| EXTAL / XTAL | Crystal Oscillator Inputs | Supports 2–25 MHz crystal resonator; enables precise clock generation without external oscillator |
| STBY | Standby Control | Enters low-power standby mode when asserted; reduces current consumption in idle periods |
| RxD0–RxD2 / TxD0–TxD2 | SCI Serial I/O | Three independent UART/SCI channels supporting full-duplex asynchronous or synchronous communication |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Memory Options | F-ZTAT™ flash enables rapid prototyping and firmware updates without mask ROM turnaround delays |
| Smart Card Interface Support | SCI channel expanded to comply with ISO/IEC7816-3 - directly interfaces with contact-based smart cards |
| Configurable Power Management | Individual module standby and software-controlled clock division reduce active power in battery-operated systems |
| External Bus Interface | Eight configurable memory areas with independent bus width and timing - simplifies connection to diverse SRAM, Flash, or peripheral ICs |
| DMA Controller | Four-channel DMAC with cycle-steal and block transfer modes - offloads CPU during high-bandwidth data movement |
Applications
| Industrial PLC I/O Module | Smart Energy Meter |
|---|---|
Use Scenario: Real-time monitoring and control of discrete sensors and actuators in factory automation cabinets. IC Role / Device Role / Timing Role: Central microcontroller managing analog/digital I/O, executing ladder logic, and communicating via RS-485 SCI channel. Use Value: Integrated 10-bit A/D and D/A converters eliminate external signal-conditioning ICs; 25 MHz clock ensures deterministic scan-cycle timing. | Use Scenario: Accurate energy measurement and secure data transmission in residential/commercial electricity meters. IC Role / Device Role / Timing Role: Main controller performing metrology calculations, tamper detection, and secure communication via ISO/IEC7816-3 smart card interface. Use Value: Native SCI support for smart card protocols reduces BOM count and firmware complexity versus external protocol translators. |
| Medical Diagnostic Handheld | Automated Test Equipment (ATE) Front-End |
Use Scenario: Portable device acquiring biopotential signals (ECG, EMG) and displaying results on local LCD. IC Role / Device Role / Timing Role: Signal acquisition controller handling analog front-end sampling, digital filtering, and USB/SCI host communication. Use Value: On-chip 10-bit A/D with ≤5 kΩ source impedance tolerance allows direct connection to op-amp buffers without additional driver stages. | Use Scenario: Modular test instrument capturing digital waveforms and controlling stimulus sources via GPIB or serial link. IC Role / Device Role / Timing Role: High-speed data acquisition engine using DMA to stream samples from external ADC into RAM while servicing SCI commands. Use Value: Four-channel DMAC with cycle-steal mode enables concurrent acquisition and communication without CPU intervention or timing jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| H8/3048F-ZTAT | Higher pin count (128-pin LQFP), larger flash (512 KB vs. 256 KB), additional timers and SCI channels | Better suited for complex control systems requiring more I/O or dual-bus expansion | Select when scaling beyond DF3028X25V's 100-pin I/O and memory capacity |
| R5F566TEADFP | RX66T 32-bit core, 160 MHz max, FPU, enhanced timer units (MTU3), no native ISO/IEC7816-3 SCI | Targets motor control with real-time PWM and encoder interfaces; lacks smart card support | Choose for high-performance motion control where smart card interface is unnecessary |
Compared with DF3028X25V, H8/3048F-ZTAT offers scalable I/O and memory within the same H8 ecosystem, while R5F566TEADFP delivers higher computational throughput at the cost of smart card compatibility and increased power consumption - making DF3028X25V optimal for cost-sensitive, protocol-specific embedded controllers.
Availability
DF3028X25V is available at Aetrix Electronics and suitable for industrial PLC I/O modules, smart energy meters, and portable medical diagnostics requiring stable component supply across extended product lifecycles.
Supply support for DF3028X25V 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 applications.
The H8/300H series, including DF3028X25V, was designed for cost-effective, high-integration embedded control in resource-constrained industrial and consumer equipment - emphasizing flash flexibility, low-power operation, and peripheral richness over raw performance.
FAQ
What is the maximum operating frequency of the DF3028X25V?
The DF3028X25V supports a maximum system clock frequency of 25 MHz, validated under VCC = 3.0 V to 3.6 V and operating temperature of –40°C to +85°C. This frequency is achieved using an external crystal resonator (2–25 MHz) connected to EXTAL/XTAL pins, with optional on-chip frequency division for lower-speed operation.
Does the DF3028X25V include on-chip flash memory?
Yes, the DF3028X25V integrates F-ZTAT™ (Flexible ZTAT) flash memory, enabling in-system programming and field firmware updates. The flash is accessible via the FWE pin and supports erase/program cycles under controlled voltage and temperature conditions (Ta = 0°C to +85°C for programming/erasing).
Can the DF3028X25V interface directly with ISO/IEC7816-3 smart cards?
Yes, the DF3028X25V's three-channel SCI includes hardware-level expansion for ISO/IEC7816-3 smart card interface on one channel. This eliminates the need for external protocol translators and allows direct connection to contact-based smart cards using standard T=0 or T=1 protocols.
What are the power management capabilities of the DF3028X25V?
The DF3028X25V supports multiple low-power strategies: individual peripheral modules can be placed in standby mode, and the system clock frequency can be divided down under software control. The STBY pin triggers full-chip standby, reducing current consumption significantly during idle periods - critical for battery-powered applications.
Is the DF3028X25V pin-compatible with other H8/300H series microcontrollers?
No, the DF3028X25V is not pin-compatible with other H8/300H devices such as H8/3048F-ZTAT due to differences in package size (100-pin LQFP vs. 128-pin LQFP) and pin assignment. While functional peripherals overlap, PCB layout and signal routing must be redesigned for migration between these variants.
DF3028X25V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TQFP
- Series:
- H8® H8/300H
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- H8/300H
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- SCI, SmartCard
- Peripherals:
- DMA, PWM, WDT
- Number of I/O:
- 70
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- A/D 8x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF3028X25V FAQ
1.How can I place an order for DF3028X25V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF3028X25V 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 DF3028X25V reliable?
The price and inventory of DF3028X25V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF3028X25V is usually 5 days.
3.What payment methods are accepted for DF3028X25V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF3028X25V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF3028X25V?
DF3028X25V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF3028X25V 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 DF3028X25V?
For technical support, including DF3028X25V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF3028X25V requirements.
6.How does Aetrix verify that DF3028X25V is sourced from the original manufacturer or authorized distributors?
All DF3028X25V 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 DF3028X25V meets industry standards.
7.What is the process for return or replacement of DF3028X25V?
All DF3028X25V units undergo pre-shipment inspection (PSI). If there is an issue with DF3028X25V, 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 DF3028X25V part is unused and in its original packaging.
Return procedure for DF3028X25V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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