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Renesas HD64F3684FPV
- Part No.:
- HD64F3684FPV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
HD64F3684FPV.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,599
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Product details
Overview
HD64F3684FPV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/300H Tiny Series, featuring an H8/300H CPU core, 64 KB on-chip 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 low-power sleep/standby modes. It targets embedded control in industrial equipment and consumer appliances.
For engineers reviewing the HD64F3684FPV datasheet, HD64F3684FPV pinout, HD64F3684FPV application, or HD64F3684FPV equivalent, key selection criteria include its 64-pin LQFP package, ROM-based program storage, H8/300H instruction set compatibility, and support for on-chip debugging via dedicated pins (P85–P87, NMI).
Technical Context
The HD64F3684FPV implements the H8/300H CPU architecture with full instruction set compatibility to the H8/300, enabling legacy code reuse. Its memory map includes 64 KB of mask-ROM (program space), 4 KB of SRAM, and configurable wait-state control for external bus access.
Peripheral integration includes three asynchronous serial interfaces (SCI), four 16-bit timer/counters with capture/compare capability, a watchdog timer, and 48 general-purpose I/O pins distributed across six ports (P0–P5). Clock generation supports crystal (1–20 MHz), ceramic resonator, or external clock input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core, upward-compatible with H8/300 instruction set |
| ROM Size | 64 KB mask-programmed ROM - fixed firmware storage, no field reprogramming |
| RAM Size | 4 KB on-chip SRAM - used for stack, variables, and runtime data without external memory |
| Max Operating Frequency | 20 MHz - determines real-time processing throughput and peripheral timing resolution |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V logic systems and industrial power rails |
| I/O Pins | 48 CMOS bidirectional I/O - configurable per port, supports TTL-level inputs and drive-strength control |
| Package | 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) - surface-mount, RoHS-compliant, thermal pad optional |
Pinout & Package
HD64F3684FPV is housed in a 64-pin Low-Profile Quad Flat Package (LQFP) with exposed thermal pad option. Pin functions are defined per the H8/3684 group hardware manual (Rev.5.00, 2005), with dedicated reset, clock, NMI, and on-chip emulator interface pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs ensure stable core voltage distribution and noise suppression |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers and initializes I/O states to known values |
| CLK, EXTAL, XTAL | System clock input/output | Supports crystal (1–20 MHz), ceramic resonator, or external clock source for precise timing |
| NMI | Non-maskable interrupt input | Reserved for on-chip emulator (E7/E8); not available for user application when debugging enabled |
| P85–P87 | Emulator interface pins | Used for E7/E8 debug communication; unavailable as general I/O during on-chip emulation |
| P00–P57 | General-purpose I/O ports | 48 total pins grouped into six 8-bit ports; individually configurable as input/output with pull-up options |
Key Features
| Feature | Design Value |
|---|---|
| H8/300H CPU core | Enables deterministic real-time execution with 20 MHz max clock and 1–2 cycle instruction timing |
| Integrated SCI modules | Three independent UART channels support simultaneous host communication, sensor telemetry, and diagnostics |
| Four 16-bit timers | Provide PWM generation, input capture, interval counting, and watchdog functionality without external components |
| Low-power modes | Sleep, standby, subsleep, and subactive modes reduce current to <10 µA (standby), extending battery life in portable devices |
| On-chip ROM + RAM | Eliminates need for external program memory; simplifies BOM and improves system reliability and boot speed |
Applications
| Industrial Motor Control | Home Appliance UI Controller |
|---|---|
Use Scenario: Embedded controller for washing machine drum motor sequencing, water valve actuation, and temperature monitoring. IC Role / Device Role / Timing Role: Main system MCU executing real-time PID loops, managing I/O state machines, and coordinating serial communication with display module. Use Value: 48 GPIOs directly drive relays and read sensors; 64 KB ROM stores firmware with safety checks; 20 MHz CPU handles multi-task scheduling within 10 ms control cycles. | Use Scenario: Central control unit in microwave oven managing keypad scan, display update, magnetron timing, and door interlock monitoring. IC Role / Device Role / Timing Role: Standalone 5 V MCU handling human interface, safety-critical timing, and appliance state management. Use Value: Integrated timers generate precise magnetron on/off intervals; ROM-based firmware ensures immutable safety logic; low-power modes reduce standby consumption. |
| Point-of-Sale Terminal | Factory Automation I/O Module |
Use Scenario: Compact POS terminal with barcode scanner interface, thermal printer driver, and cash drawer control. IC Role / Device Role / Timing Role: Host controller interfacing with peripherals via UART and parallel I/O, managing transaction state and error recovery. Use Value: Three SCI channels enable concurrent connection to scanner, printer, and host PC; 4 KB RAM buffers transaction data; 64-pin LQFP fits compact PCB layouts. | Use Scenario: DIN-rail mounted remote I/O node collecting sensor data and driving solenoids in PLC-connected systems. IC Role / Device Role / Timing Role: Field-side intelligent node performing local decision-making and protocol translation (e.g., Modbus RTU over RS-485). Use Value: SCI with built-in framing supports robust RS-485 communication; 48 GPIOs accommodate diverse sensor/actuator wiring; ROM firmware resists corruption in electrically noisy environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3684G | Same core and peripherals, but in 64-pin PQFP package (0.65 mm pitch) instead of LQFP (0.5 mm pitch) | Requires PCB redesign due to different footprint and pitch; identical firmware and register mapping | Select HD64F3684G only if legacy board layout uses PQFP or assembly process lacks fine-pitch LQFP capability |
| HD64F3687F | Higher memory: 128 KB ROM + 4 KB RAM; adds extra SCI channel and enhanced timer features | Targets more complex control tasks requiring larger code size or additional serial links | Choose HD64F3687F when firmware exceeds 64 KB or dual UART + debug UART is required simultaneously |
Compared with HD64F3684FPV, HD64F3684G offers identical functionality in a coarser-pitch package for easier hand-soldering or legacy production, while HD64F3687F provides scalable memory and peripherals for upgraded system requirements-neither is pin-compatible without layout revision.
Availability
HD64F3684FPV is available at Aetrix Electronics and suitable for industrial motor control, home appliance UI, and factory automation I/O modules requiring stable component supply and long-term lifecycle support.
Supply support for HD64F3684FPV 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 HD64F3684FPV belongs to the H8/300H Tiny Series - a family of cost-optimized, 5 V-compatible 16-bit MCUs designed for reliable embedded control in resource-constrained industrial and consumer equipment.
FAQ
What is the maximum operating frequency of the HD64F3684FPV?
The HD64F3684FPV supports a maximum operating frequency of 20 MHz when powered at 4.5–5.5 V. This frequency is achieved using an external crystal or clock source connected to the CLK/EXTAL/XTAL pins. The internal prescalers allow flexible division of this clock for peripheral operation, and timing specifications in the electrical characteristics section confirm setup/hold times and instruction cycle durations at this rate. HD64F3684FPV maintains full functionality-including all timers, SCI, and I/O-within this rated frequency range.
Does the HD64F3684FPV support in-circuit debugging?
Yes, the HD64F3684FPV supports on-chip debugging via Renesas E7 or E8 emulators using dedicated pins: NMI, P85, P86, and P87. However, these pins are reserved during debug mode and cannot be used for application I/O. The emulator accesses internal resources including registers and memory through the on-chip debug interface, and address ranges H'D000–H'DFFF and H'F780–H'FB7F are restricted during debugging. HD64F3684FPV requires proper boot-mode configuration and external emulator hardware to enable this capability.
What type of memory does the HD64F3684FPV use for program storage?
The HD64F3684FPV uses 64 KB of mask-programmed ROM for program storage. This ROM is factory-programmed during wafer fabrication and cannot be modified in the field. It provides non-volatile, high-reliability code storage ideal for high-volume, fixed-function embedded applications where firmware stability and immunity to corruption are critical. Unlike flash-based MCUs, HD64F3684FPV does not support in-system programming or firmware updates - design verification must be completed before mask finalization. HD64F3684FPV relies on its 4 KB SRAM for runtime data only.
Is the HD64F3684FPV RoHS compliant?
Yes, the HD64F3684FPV is RoHS compliant, as confirmed by Renesas Electronics' environmental compliance documentation and product marking. The 64-pin LQFP package uses lead-free terminations and meets EU Directive 2011/65/EU requirements. Renesas specifies that all H8/3684-series devices shipped after July 2006 conform to RoHS, and HD64F3684FPV falls within this scope. For full material declarations and substance concentration data, refer to the official Renesas "Environmental Data Sheet" for the H8/3684 group. HD64F3684FPV is suitable for use in environmentally regulated markets including the EU, Japan, and China.
How many serial communication interfaces does the HD64F3684FPV include?
The HD64F3684FPV integrates three independent asynchronous serial communication interfaces (SCI), each supporting full-duplex UART operation with programmable baud rates, framing, and error detection. These SCIs are mapped to specific port pins (e.g., P21/P22, P30/P31, P32/P33) and share common control registers with individual channel enable bits. All three operate concurrently and can be configured for different protocols - such as host command parsing, sensor telemetry, and diagnostic logging - without CPU overhead beyond interrupt servicing. HD64F3684FPV's SCI modules do not support synchronous or LIN modes natively.
HD64F3684FPV 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:
- 20MHz
- Connectivity:
- I2C, SCI
- Peripherals:
- PWM, WDT
- Number of I/O:
- 45
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
HD64F3684FPV FAQ
1.How can I place an order for HD64F3684FPV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64F3684FPV 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 HD64F3684FPV reliable?
The price and inventory of HD64F3684FPV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64F3684FPV is usually 5 days.
3.What payment methods are accepted for HD64F3684FPV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64F3684FPV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64F3684FPV?
HD64F3684FPV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64F3684FPV 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 HD64F3684FPV?
For technical support, including HD64F3684FPV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64F3684FPV requirements.
6.How does Aetrix verify that HD64F3684FPV is sourced from the original manufacturer or authorized distributors?
All HD64F3684FPV 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 HD64F3684FPV meets industry standards.
7.What is the process for return or replacement of HD64F3684FPV?
All HD64F3684FPV units undergo pre-shipment inspection (PSI). If there is an issue with HD64F3684FPV, 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 HD64F3684FPV part is unused and in its original packaging.
Return procedure for HD64F3684FPV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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