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Renesas HD64F3684GFPIV
- Part No.:
- HD64F3684GFPIV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
HD64F3684GFPIV.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,231
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Product details
Overview
HD64F3684GFPIV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/300H Tiny Series, featuring an H8/300H CPU core with upward compatibility to the H8/300 instruction set, 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 and targets embedded control in industrial equipment and consumer appliances.
For engineers reviewing the HD64F3684GFPIV datasheet, HD64F3684GFPIV pinout, HD64F3684GFPIV application, or HD64F3684GFPIV equivalent, key selection criteria include its 80-pin PQFP package, 5 V operation, ROM-based program storage, and support for low-power sleep/standby modes in resource-constrained real-time control systems.
Technical Context
The HD64F3684GFPIV implements the H8/300H CPU architecture with 24-bit addressing, supporting both byte- and word-aligned memory access. Its on-chip system includes a programmable clock generator with main and subclock sources, prescalers (S and W), and power-down modes-Sleep, Standby, Subsleep, and Subactive-with configurable module-level standby control via MSTCR1/MSTCR2 registers.
Peripheral integration includes three serial communication interfaces (SCI), four 16-bit timer/counters (one with input capture/output compare), a watchdog timer, and 64 general-purpose I/O pins distributed across eight ports (P0–P7). Reset handling supports both external and internal reset sources, with vectorized exception handling for interrupts and exceptions aligned to fixed memory-mapped addresses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core, upward-compatible with H8/300, enabling reuse of legacy software assets. |
| Max Operating Frequency | 20 MHz - determines real-time instruction throughput and peripheral timing resolution. |
| On-Chip Memory | 64 KB ROM (mask-programmed) + 4 KB RAM - eliminates need for external program memory in cost-sensitive designs. |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V logic systems and industrial power rails. |
| I/O Pins | 64 CMOS bidirectional I/O pins - supports direct interface to sensors, actuators, and discrete logic without level-shifting. |
| Package | 80-pin plastic quad flat pack (PQFP), 14 × 20 mm body, 0.65 mm pitch - suitable for automated SMT assembly and moderate-density PCB layouts. |
| Power Modes | Active, Sleep, Standby, Subsleep, Subactive - enables dynamic power scaling down to µA-level current in idle states. |
Pinout & Package
HD64F3684GFPIV is housed in an 80-pin PQFP (Plastic Quad Flat Package) with 0.65 mm lead pitch and 14 mm × 20 mm body size. Pin functions are defined per the H8/3687 Group Hardware Manual Rev.5.00 (2005), with dedicated power, ground, clock, reset, and multifunction I/O pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs ensure stable core and I/O rail decoupling; NC pins must remain unconnected. |
| XTAL, EXTAL | Main system clock input | Accepts 1–20 MHz crystal or ceramic resonator; defines maximum CPU and peripheral operating frequency. |
| RES | Active-low reset input | Asynchronous reset signal; internal pull-up ensures defined startup state when external RC network is used. |
| P00–P07, P10–P17, etc. | General-purpose I/O ports | Eight 8-bit ports (P0–P7); each pin configurable as input/output with internal pull-up options and interrupt capability on select pins. |
| TXD0/RXD0, TXD1/RXD1 | SCI channel 0 and 1 serial I/O | Full-duplex UART interfaces supporting asynchronous communication at baud rates up to 1 Mbps (at 20 MHz). |
Key Features
| Feature | Design Value |
|---|---|
| Mask-ROM program memory | 64 KB factory-programmed ROM eliminates external boot device and reduces BOM cost in high-volume production. |
| Integrated clock system | Dual clock domains (main + 32.768 kHz subclock) enable precise RTC functions and low-power wake-up timing. |
| Four 16-bit timers | Support input capture, output compare, PWM generation, and interval counting - sufficient for motor control and pulse measurement. |
| Module standby control | MSTCR1/MSTCR2 registers allow selective disabling of SCI, timers, and clock generators to reduce active current by >90%. |
| Vectorized interrupt handling | Fixed 16-byte vector table with priority encoding supports deterministic response to up to 64 interrupt sources. |
Applications
| Industrial PLC I/O Module | Home Appliance Motor Controller |
|---|---|
Use Scenario: Compact, self-contained I/O expansion unit for small-scale programmable logic controllers handling digital inputs/outputs and analog monitoring. IC Role / Device Role / Timing Role: Main controller executing ladder logic scan cycles, managing serial Modbus RTU communication, and driving opto-isolated outputs. Use Value: On-chip 64 KB ROM stores firmware and configuration tables; 64 GPIO pins directly interface to terminal blocks without glue logic. | Use Scenario: Embedded motor speed and direction control in washing machines, air conditioners, and refrigerators using brushless DC or universal motors. IC Role / Device Role / Timing Role: Real-time motor commutation sequencer with PWM generation, current sensing feedback processing, and fault protection logic. Use Value: Four 16-bit timers provide independent PWM channels and input-capture for rotor position sensing; 5 V tolerance matches appliance power domain. |
| Point-of-Sale Terminal Peripheral | Building Automation Sensor Node |
Use Scenario: Dedicated controller for receipt printers, barcode scanners, or cash drawers in retail POS systems requiring reliable serial command parsing and GPIO actuation. IC Role / Device Role / Timing Role: Protocol translator and hardware sequencer managing RS-232/RS-485 physical layer, buffer management, and mechanical actuator timing. Use Value: Dual SCI interfaces enable simultaneous host communication and peripheral daisy-chaining; mask-ROM ensures firmware immutability in field-deployed units. | Use Scenario: Low-power environmental sensor aggregator (temperature, humidity, occupancy) transmitting data over wired RS-485 to central HVAC controllers. IC Role / Device Role / Timing Role: Data acquisition hub with periodic sampling, local decision logic, and fail-safe watchdog supervision. Use Value: Subsleep mode draws <100 µA while maintaining RTC and wake-on-interrupt capability; 32.768 kHz subclock enables accurate time-stamped logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3687GFP | Same H8/3687 family, 128 KB ROM, 8 KB RAM, identical 80-pin PQFP package and pinout. | Higher memory capacity supports larger firmware images and data buffers; otherwise functionally compatible. | Select when firmware exceeds 64 KB or requires extended RAM for complex protocol stacks. |
| HD64F3694FP | H8/3694 variant with enhanced SCI (four channels), additional 16-bit timers, and same 80-pin PQFP footprint. | Better suited for multi-serial-device systems (e.g., dual Modbus + debug UART) and higher-resolution timing tasks. | Choose when needing ≥3 independent UARTs or more than four 16-bit timer resources. |
Compared with HD64F3684GFPIV, HD64F3687GFP offers double the ROM/RAM for scalable firmware, while HD64F3694FP adds serial and timing resources - both retain pin compatibility and power/performance profiles, making them drop-in upgrades where memory or peripheral headroom is constrained.
Availability
HD64F3684GFPIV is available at Aetrix Electronics and suitable for industrial automation, home appliance control, and point-of-sale peripheral design requiring stable component supply and long-term manufacturing continuity.
Supply support for HD64F3684GFPIV 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 Family - including the H8/3684 series - was designed for cost-effective, low-power 16-bit embedded control in consumer and industrial equipment where ROM-based firmware, deterministic real-time response, and minimal external components are critical.
FAQ
What is the maximum operating frequency of the HD64F3684GFPIV?
The HD64F3684GFPIV supports a maximum operating frequency of 20 MHz when driven by an external crystal or resonator connected to the XTAL/EXTAL pins. This frequency defines the upper limit for CPU instruction execution, timer resolution, and serial communication baud rates. The HD64F3684GFPIV achieves this speed under specified 4.5 V to 5.5 V supply conditions and ambient temperature range.
Does the HD64F3684GFPIV include on-chip flash or EEPROM memory?
No, the HD64F3684GFPIV uses mask-programmed ROM for program storage - not flash or EEPROM. Its 64 KB ROM is factory-programmed during wafer fabrication and cannot be reprogrammed in-system. For development, Renesas recommends using emulator tools like the E7/E8 with external RAM; final production units rely on the immutable mask-ROM image. HD64F3684GFPIV does include 4 KB of on-chip SRAM for runtime data.
What power-saving modes does the HD64F3684GFPIV support?
The HD64F3684GFPIV supports five power modes: Active, Sleep, Standby, Subsleep, and Subactive. In Subsleep mode, current drops below 100 µA while retaining RAM content and RTC functionality via the 32.768 kHz subclock. Mode transitions are controlled by SYSCR1/SYSCR2 registers and triggered by software or external events. HD64F3684GFPIV's module standby feature allows individual peripherals (e.g., SCI, timers) to be disabled to further reduce active current.
Is the HD64F3684GFPIV pin-compatible with other H8/368x devices?
Yes, the HD64F3684GFPIV shares the same 80-pin PQFP package and pinout with other members of the H8/3687 Group, including HD64F3687GFP and HD64F3694FP. Signal assignments for power, clock, reset, and I/O ports are consistent across these variants, enabling board-level reuse when upgrading firmware capacity or peripheral count. HD64F3684GFPIV's pin mapping is fully documented in Section 1.3 ("Pin Arrangement") and Section 1.4 ("Pin Functions") of the H8/3687 Group Hardware Manual.
What development tools are recommended for the HD64F3684GFPIV?
Renesas recommends the E7 or E8 in-circuit emulators for HD64F3684GFPIV development, along with the H8/300H Series Software Manual (REJ09B0213) and H8/3687 Group Hardware Manual (Rev.5.00). The C/C++ Compiler Package (REJ10B0058) and High-Performance Embedded Workshop IDE support full firmware build, debug, and on-board programming via SCI boot mode. HD64F3684GFPIV debugging requires reserving P85–P87 and NMI pins for emulator use per hardware manual restrictions.
HD64F3684GFPIV 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:
- LVD, POR, 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
HD64F3684GFPIV FAQ
1.How can I place an order for HD64F3684GFPIV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64F3684GFPIV 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 HD64F3684GFPIV reliable?
The price and inventory of HD64F3684GFPIV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64F3684GFPIV is usually 5 days.
3.What payment methods are accepted for HD64F3684GFPIV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64F3684GFPIV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64F3684GFPIV?
HD64F3684GFPIV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64F3684GFPIV 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 HD64F3684GFPIV?
For technical support, including HD64F3684GFPIV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64F3684GFPIV requirements.
6.How does Aetrix verify that HD64F3684GFPIV is sourced from the original manufacturer or authorized distributors?
All HD64F3684GFPIV 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 HD64F3684GFPIV meets industry standards.
7.What is the process for return or replacement of HD64F3684GFPIV?
All HD64F3684GFPIV units undergo pre-shipment inspection (PSI). If there is an issue with HD64F3684GFPIV, 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 HD64F3684GFPIV part is unused and in its original packaging.
Return procedure for HD64F3684GFPIV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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