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Renesas HD64F3672FXV
- Part No.:
- HD64F3672FXV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
HD64F3672FXV.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,916
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Product details
Overview
HD64F3672FXV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/3672 Group, featuring the H8/300H CPU core with instruction set compatibility to H8/300. It integrates on-chip ROM (128 KB), RAM (8 KB), and peripheral modules including UART, timer/counters, and I/O ports. Operates at up to 20 MHz with 5 V supply, targeting embedded control in industrial equipment and office automation.
For engineers reviewing the HD64F3672FXV datasheet, HD64F3672FXV pinout, HD64F3672FXV application, or HD64F3672FXV equivalent, key selection considerations include its 128 KB on-chip Flash ROM, 8 KB RAM, 20 MHz max CPU frequency, 5 V operation, and support for on-board programming via boot mode - all critical for legacy industrial firmware updates and cost-sensitive MCU replacements.
Technical Context
The HD64F3672FXV implements the H8/300H CPU architecture with 24-bit address space, supporting both big-endian and little-endian data access modes. Its memory map includes dedicated areas for on-chip ROM (0x000000–0x01FFFF), RAM (0xFFE000–0xFFFFFF), and peripheral registers (0xF00000–0xF00FFF).
It features three independent 16-bit timer/counters with input capture and output compare functions, two full-duplex UART channels with programmable baud rates, and a 32-pin I/O port structure configurable per pin as input, output, or alternate function (e.g., TXD/RXD, CLK, INT). Power management includes Sleep, Standby, and Subsleep modes controlled by SYSCR1/SYSCR2 registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core, instruction-compatible with H8/300; enables reuse of existing H8 toolchains and firmware libraries. |
| Max Operating Frequency | 20 MHz at 5 V; defines real-time response capability for control loops and serial communication timing budgets. |
| On-Chip Memory | 128 KB Flash ROM + 8 KB RAM; eliminates need for external program memory and supports field firmware updates without external programmers. |
| I/O Pins | 32 general-purpose I/O pins with programmable pull-up resistors and interrupt-capable inputs; sufficient for sensor interfacing and actuator control in compact systems. |
| Peripherals | 2 × UART, 3 × 16-bit timers, watchdog timer, clock pulse generator with crystal/ceramic/resonator support; enables self-contained serial communication and time-based control without external ICs. |
| Supply Voltage | 4.5 V to 5.5 V; compatible with standard 5 V logic rails and legacy industrial power supplies. |
| Package | 100-pin LQFP (14 mm × 14 mm); provides thermal and mechanical reliability for reflow-soldered industrial PCBs. |
Pinout & Package
HD64F3672FXV is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow the H8/3672 Group standard layout, supporting multiplexed I/O functions and dedicated power/ground distribution across four sides.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dedicated VCC/VSS pairs per side ensure stable core and I/O voltage delivery; decoupling required near each VCC pin. |
| XTAL1, XTAL2 | Clock oscillator inputs | Supports external crystal (1–20 MHz), ceramic resonator, or CMOS clock source; determines system timing accuracy and jitter performance. |
| RESET | Active-low reset input | Asynchronous reset signal; must be held low ≥1024 cycles after power stabilization to guarantee internal register initialization. |
| INT0–INT7 | External interrupt inputs | Edge-selectable (rising/falling) interrupt sources mapped to priority levels; used for emergency stop, encoder zero-index, or sensor event capture. |
| TXD0, RXD0 | UART0 serial interface | Full-duplex asynchronous communication channel; supports RS-232/RS-485 level-shifting with external transceivers. |
| PORT A–G | Configurable I/O ports | 32 total pins across PORTA–PORTG; each pin individually programmable as GPIO, peripheral function, or interrupt source. |
Key Features
| Feature | Design Value |
|---|---|
| On-board Flash programming | Supports in-system programming via boot mode using UART; eliminates need for external EPROM programmers in production and field service. |
| Low-power modes | Sleep, Standby, and Subsleep modes reduce current to ≤10 µA; extends battery life in portable test equipment and remote sensors. |
| Interrupt vector table | Fixed 256-entry vector table in ROM; enables deterministic interrupt latency (< 10 cycles) for real-time motor control and safety-critical responses. |
| Watchdog timer | Independent free-running timer with windowed refresh; prevents runaway code in unattended industrial controllers without external supervision ICs. |
| Memory protection | Hardware lock bits and software write-protection for Flash blocks; prevents accidental overwrites during firmware updates in deployed systems. |
Applications
| Industrial PLC I/O Module | Office Equipment Motor Control |
|---|---|
|
Use Scenario: Compact I/O expansion module for programmable logic controllers handling discrete sensor inputs and relay outputs. IC Role / Device Role / Timing Role: Primary MCU executing ladder logic scan, managing UART-based Modbus RTU communication, and driving opto-isolated I/O buffers. Use Value: 128 KB Flash stores multiple firmware versions; 32 I/O pins directly interface to 24 V DC sensors and 110 V AC relays via external drivers. |
Use Scenario: Embedded controller for paper feed and toner motor sequencing in laser printers and multifunction copiers. IC Role / Device Role / Timing Role: Real-time motion controller synchronizing stepper motor phases, monitoring encoder feedback, and coordinating with main SoC via UART. Use Value: 20 MHz CPU delivers sub-millisecond loop timing; integrated timers generate precise PWM for brushless DC motor commutation. |
| Test & Measurement Front-End | Legacy Industrial HMI Panel |
|
Use Scenario: Signal conditioning and data acquisition front-end in benchtop multimeters and oscilloscope accessories. IC Role / Device Role / Timing Role: Data aggregator converting analog sensor readings (via external ADC), timestamping events, and buffering results for USB host transfer. Use Value: On-chip RAM holds 8 KB of sampled waveform data; UART and timers enable synchronized trigger capture and serial streaming at 115.2 kbps. |
Use Scenario: Keypad and display controller for factory-floor human-machine interface panels with membrane switches and 4-digit LED displays. IC Role / Device Role / Timing Role: Dedicated UI processor scanning matrix keypad, driving multiplexed LEDs, and communicating status to main controller via UART. Use Value: Low-power Subsleep mode reduces idle current to <15 µA; 5 V tolerance matches legacy panel power architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3687F | Same H8/3672 family; 256 KB Flash, 16 KB RAM, identical pinout and peripheral set. | Higher memory capacity supports larger firmware images and data logging buffers. | Select when >128 KB code space or >8 KB RAM is required; otherwise HD64F3672FXV offers optimal cost/performance balance. |
| HD64F3664F | Lower-density variant: 64 KB Flash, 4 KB RAM, same CPU and peripherals; 80-pin PQFP package. | Reduced I/O count (24 pins) and smaller footprint suit space-constrained designs with simpler I/O needs. | Choose for cost-sensitive, lower-complexity applications where 32 I/O pins and 128 KB Flash are unnecessary. |
Compared with HD64F3687F and HD64F3664F, the HD64F3672FXV delivers the most balanced integration of memory size, I/O count, and package compatibility within the H8/3672 family - making it the default choice for mid-complexity industrial control designs requiring field-upgradable firmware and robust 5 V operation.
Availability
HD64F3672FXV is available at Aetrix Electronics and suitable for industrial PLC modules, office equipment motor controllers, and test & measurement front-ends requiring stable component supply and long-term lifecycle support.
Supply support for HD64F3672FXV 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, and power solutions for industrial, automotive, and infrastructure markets.
The H8/3672 Group was designed for cost-effective, high-reliability embedded control in industrial automation and office equipment - emphasizing on-chip Flash programmability, low-power operation, and 5 V robustness for legacy system integration.
FAQ
What is the maximum operating frequency of the HD64F3672FXV?
The HD64F3672FXV operates at a maximum frequency of 20 MHz when supplied with 5 V. This frequency is achieved using an external crystal oscillator connected to XTAL1/XTAL2, and it defines the upper limit for instruction execution speed and peripheral timing resolution. The HD64F3672FXV's internal clock generator supports prescaling to derive lower frequencies for timers and UART baud rates while maintaining CPU performance.
Does the HD64F3672FXV support in-system programming?
Yes, the HD64F3672FXV supports in-system programming via its built-in boot mode. When BOOT pin is asserted at reset, the device enters UART-based programming mode, allowing Flash memory to be erased and reprogrammed without external hardware programmers. This capability is integral to the HD64F3672FXV's design for field firmware updates and manufacturing flexibility.
What package type is used for the HD64F3672FXV?
The HD64F3672FXV uses a 100-pin LQFP package measuring 14 mm × 14 mm with 0.5 mm lead pitch. This package includes an exposed thermal pad for enhanced heat dissipation and is RoHS-compliant. The pin layout aligns with the H8/3672 Group standard, ensuring compatibility with existing PCB footprints for related devices like HD64F3687F.
How much on-chip memory does the HD64F3672FXV include?
The HD64F3672FXV integrates 128 KB of on-chip Flash ROM and 8 KB of RAM. The Flash memory is organized into blocks supporting sector erase and byte/word programming, while the RAM is used for stack, variables, and data buffers. This memory configuration enables standalone operation without external memory chips in typical industrial control applications using the HD64F3672FXV.
Which communication interfaces are available on the HD64F3672FXV?
The HD64F3672FXV includes two full-duplex UART channels (UART0 and UART1), each supporting programmable baud rates, framing, and interrupt-driven operation. These interfaces are accessible via dedicated TXD/RXD pins and support RS-232 or RS-485 communication when paired with external level translators. No SPI or I²C peripherals are integrated into the HD64F3672FXV.
HD64F3672FXV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- H8® H8/300H Tiny
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- H8/300H
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- SCI
- Peripherals:
- PWM, WDT
- Number of I/O:
- 26
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 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:
HD64F3672FXV FAQ
1.How can I place an order for HD64F3672FXV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64F3672FXV 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 HD64F3672FXV reliable?
The price and inventory of HD64F3672FXV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64F3672FXV is usually 5 days.
3.What payment methods are accepted for HD64F3672FXV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64F3672FXV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64F3672FXV?
HD64F3672FXV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64F3672FXV 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 HD64F3672FXV?
For technical support, including HD64F3672FXV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64F3672FXV requirements.
6.How does Aetrix verify that HD64F3672FXV is sourced from the original manufacturer or authorized distributors?
All HD64F3672FXV 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 HD64F3672FXV meets industry standards.
7.What is the process for return or replacement of HD64F3672FXV?
All HD64F3672FXV units undergo pre-shipment inspection (PSI). If there is an issue with HD64F3672FXV, 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 HD64F3672FXV part is unused and in its original packaging.
Return procedure for HD64F3672FXV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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