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Renesas HD64F3672FPIV
- Part No.:
- HD64F3672FPIV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
HD64F3672FPIV.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,471
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Product details
Overview
HD64F3672FPIV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/3672 Group, featuring an H8/300H CPU core, 64 KB on-chip Flash ROM, 4 KB RAM, and integrated peripherals including UART, timer/counters, and I/O ports. It operates at up to 20 MHz with 5 V supply and supports in-circuit programming via on-board bootloader. Used in industrial control panels and legacy embedded instrumentation requiring deterministic real-time response.
For engineers reviewing the HD64F3672FPIV datasheet, HD64F3672FPIV pinout, HD64F3672FPIV application, or HD64F3672FPIV equivalent, key selection criteria include Flash endurance (10,000 write/erase cycles), 64-pin LQFP package compatibility, 5 V tolerant I/O, interrupt latency under 1.2 µs, and support for single-power-supply F-ZTAT™ on-board programming.
Technical Context
The HD64F3672FPIV implements the H8/300H CPU architecture with full instruction set compatibility to the H8/300, supporting 16-bit data paths and 24-bit addressing. It integrates system control modules including clock pulse generators with crystal/ceramic resonator support, three independent prescalers, and power-down modes (Sleep, Standby, Subsleep) controlled by SYSCR1/SYSCR2 registers.
On-chip peripheral modules include a 16-bit timer with input capture/output compare, two asynchronous serial interfaces (UART), 48 general-purpose I/O pins configurable as inputs/outputs or peripheral functions, and flash memory control logic with hardware/software erase protection and program-verify capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core, upward-compatible with H8/300 instruction set |
| Max Operating Frequency | 20 MHz - enables real-time control loop execution within ≤50 ns per instruction cycle |
| On-Chip Memory | 64 KB Flash ROM + 4 KB RAM - sufficient for standalone firmware with minimal external storage |
| I/O Pins | 48 programmable bidirectional I/O - supports direct sensor interfacing and actuator drive without glue logic |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard TTL/CMOS logic rails and industrial 5 V power systems |
| Operating Temperature | −20 °C to +75 °C - rated for commercial/industrial ambient environments per Renesas Standard grade |
| Flash Endurance | 10,000 write/erase cycles - supports field firmware updates over product lifetime |
Pinout & Package
HD64F3672FPIV is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments follow Renesas H8/3672 Group standard layout, including dedicated reset (RES), NMI, and clock input (XIN/XOUT) terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RES | Active-low reset input | Asynchronous hardware reset; must be held low ≥100 ns after VCC stabilization |
| XIN / XOUT | Crystal oscillator input/output | Supports 1–20 MHz crystal or ceramic resonator; internal feedback resistor enabled |
| VCC / VSS | Power supply / ground | Separate analog/digital VSS pins reduce noise coupling into ADC reference (if present) |
| PA0–PA15 | Port A I/O | Bi-directional with pull-up enable; PA0–PA7 support external interrupt request (IRQ0–IRQ7) |
| PD0–PD7 | Port D I/O | Configurable as UART0/UART1 TX/RX, timer output, or general-purpose I/O |
| NMI | Non-maskable interrupt input | Reserved for on-chip emulator (E7/E8); not available for user application when debugging |
Key Features
| Feature | Design Value |
|---|---|
| Single-power-supply F-ZTAT™ programming | Enables in-system Flash reprogramming using only VCC (5 V), eliminating need for high-voltage VPP |
| Hardware flash protection | Lock bits prevent unauthorized read/write/erase of Flash sectors during normal operation |
| Three power-down modes | Sleep (CPU stop, peripherals active), Standby (all clocks stopped), Subsleep (selected modules active) - reduces idle current to <10 µA |
| Interrupt response time | ≤1.2 µs from IRQ assertion to first instruction fetch - meets hard real-time deadlines in motor control |
| On-chip debug support | Integrated on-chip emulator interface compatible with E7/E8 debuggers; uses dedicated NMI and address range H'4000–H'4FFF |
Applications
| Industrial PLC I/O Module | Legacy Test Equipment Controller |
|---|---|
Use Scenario: Standalone I/O expansion unit in modular PLC rack, reading 24 V DC sensors and driving relay outputs. IC Role / Device Role / Timing Role: Main controller executing ladder logic scan, managing UART-based Modbus RTU communication, and servicing real-time I/O interrupts. Use Value: 48 GPIO pins eliminate external I/O expanders; 64 KB Flash stores multiple firmware versions; 5 V tolerance matches industrial field voltage levels. |
Use Scenario: Embedded controller in benchtop multimeter or signal generator, handling front-panel input, display update, and measurement sequencing. IC Role / Device Role / Timing Role: System-on-chip managing keypad scanning, LCD driver interface, ADC trigger timing, and GPIB/RS-232 protocol stack. Use Value: Integrated UART and timer peripherals reduce BOM count; Flash endurance supports calibration data updates; deterministic interrupt latency ensures precise measurement timing. |
| Building Automation Panel | Medical Diagnostic Instrument Subsystem |
Use Scenario: HVAC zone controller collecting temperature/humidity data, modulating damper actuators, and reporting status via RS-485 network. IC Role / Device Role / Timing Role: Real-time environmental manager running closed-loop PID algorithms, sampling sensors every 100 ms, and updating outputs synchronously. Use Value: Low-power Subsleep mode extends battery backup runtime; UART supports multi-drop RS-485 with automatic direction control; 4 KB RAM buffers sensor history locally. |
Use Scenario: Non-life-support subsystem in ultrasound or imaging equipment - controlling fan speed, monitoring power supply rails, and logging thermal events. IC Role / Device Role / Timing Role: Safety-monitored supervisory MCU operating independently from main imaging processor, with watchdog and voltage brown-out detection. Use Value: Renesas Standard-grade qualification covers diagnostic ancillary functions; Flash lock bits prevent accidental firmware corruption; dual VSS pins isolate analog monitoring circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3684FPIV | Same H8/3672 Group family; 128 KB Flash, 8 KB RAM, additional UART and timer channels | Higher memory and peripheral count suits more complex control tasks with larger code footprint | Select when >64 KB Flash or extra serial interfaces are required; pinout identical but requires updated PCB silkscreen |
| HD64F3664FPIV | Lower-density variant: 32 KB Flash, 2 KB RAM, no on-chip debugger interface (NMI disabled) | Lacks E7/E8 debug support and has reduced memory - suitable for cost-sensitive, fixed-function deployments | Choose for production units where development debug is unnecessary and firmware size is ≤32 KB |
Compared with HD64F3672FPIV, HD64F3684FPIV offers scalable memory and peripherals without layout change, while HD64F3664FPIV reduces cost and complexity where debug access and Flash capacity are noncritical - enabling tiered product variants from a common design base.
Availability
HD64F3672FPIV is available at Aetrix Electronics and suitable for industrial automation, test & measurement equipment, and building management systems requiring stable component supply and long-term lifecycle support.
Supply support for HD64F3672FPIV 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 H8/3672 Group was designed for cost-effective, deterministic real-time control in legacy and long-lifecycle embedded systems - emphasizing Flash reliability, 5 V robustness, and seamless toolchain integration with E7/E8 debuggers.
FAQ
What is the maximum operating frequency of the HD64F3672FPIV?
The HD64F3672FPIV supports a maximum operating frequency of 20 MHz when using an external crystal or ceramic resonator connected to the XIN/XOUT pins. This frequency is achievable across the full specified supply voltage range (4.5 V to 5.5 V) and operating temperature range (−20 °C to +75 °C). The internal clock generator includes prescaler S for dividing the main clock to derive peripheral bus timing, ensuring synchronous operation of UART and timers even at maximum CPU speed. HD64F3672FPIV maintains instruction timing compliance per the H8/300H Series Software Manual at this rate.
Does the HD64F3672FPIV support in-system programming without high-voltage VPP?
Yes, the HD64F3672FPIV supports single-power-supply F-ZTAT™ on-board programming, allowing Flash memory to be programmed and erased using only the standard 5 V VCC supply - no external VPP voltage is required. This capability is implemented via on-chip charge pump and is documented in Section 7.3 of the H8/3672 Group Hardware Manual. HD64F3672FPIV retains full programming functionality through its UART interface or dedicated boot mode entry, making field firmware updates practical in deployed equipment.
How many I/O pins does the HD64F3672FPIV provide, and are they 5 V tolerant?
The HD64F3672FPIV provides 48 general-purpose I/O pins distributed across Ports A, B, C, and D, all of which are fully 5 V tolerant with input thresholds compliant to TTL levels. These pins support configurable pull-up resistors, external interrupt triggering (on Ports A and B), and alternate functions including UART transmit/receive, timer output compare, and clock outputs. HD64F3672FPIV's I/O structure eliminates level-shifting requirements when interfacing with standard 5 V logic, sensors, and actuators in industrial environments.
What debug interfaces are supported by the HD64F3672FPIV?
The HD64F3672FPIV supports on-chip emulation via Renesas E7 and E8 debuggers using the dedicated NMI pin and reserved memory region H'4000–H'4FFF. Debug features include hardware breakpoints, register inspection, and real-time variable monitoring. Note that the NMI pin is unavailable for application use when the emulator is connected. HD64F3672FPIV does not support JTAG or SWD; its debug architecture is specific to the H8/300H ecosystem and requires Renesas' High-Performance Embedded Workshop toolchain.
Is the HD64F3672FPIV qualified for automotive or safety-critical applications?
No, the HD64F3672FPIV is classified as a Renesas Standard-grade product, intended for computers, office equipment, communications gear, test and measurement instruments, and industrial robots - not for automotive, medical life-support, aerospace, or nuclear applications. Its quality grade excludes transportation equipment and safety-critical systems unless explicitly authorized in writing by Renesas Electronics. HD64F3672FPIV documentation states it is not designed for use where human life is potentially at stake, and users must obtain prior written consent for any "Specific" or "High Quality" application category.
HD64F3672FPIV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
HD64F3672FPIV FAQ
1.How can I place an order for HD64F3672FPIV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64F3672FPIV 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 HD64F3672FPIV reliable?
The price and inventory of HD64F3672FPIV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64F3672FPIV is usually 5 days.
3.What payment methods are accepted for HD64F3672FPIV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64F3672FPIV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64F3672FPIV?
HD64F3672FPIV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64F3672FPIV 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 HD64F3672FPIV?
For technical support, including HD64F3672FPIV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64F3672FPIV requirements.
6.How does Aetrix verify that HD64F3672FPIV is sourced from the original manufacturer or authorized distributors?
All HD64F3672FPIV 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 HD64F3672FPIV meets industry standards.
7.What is the process for return or replacement of HD64F3672FPIV?
All HD64F3672FPIV units undergo pre-shipment inspection (PSI). If there is an issue with HD64F3672FPIV, 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 HD64F3672FPIV part is unused and in its original packaging.
Return procedure for HD64F3672FPIV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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