Renesas HD64N3664FPV
- Part No.:
- HD64N3664FPV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
HD64N3664FPV.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,274
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Product details
Overview
HD64N3664FPV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/3664 Group, featuring the H8/300H CPU core with 16 MB address space, 32 KB on-chip ROM, 2 KB RAM, and integrated peripherals including UART, timer/counters, and I²C-compatible serial interface. It operates at up to 20 MHz and targets embedded control in industrial instrumentation and legacy automation systems.
For engineers reviewing the HD64N3664FPV datasheet, HD64N3664FPV pinout, HD64N3664FPV application, or HD64N3664FPV equivalent, key selection criteria include its 80-pin PQFP package, 3.3 V/5 V dual-voltage operation support, on-chip flash programming capability, and compatibility with H8/300H instruction set for migration from earlier H8 devices.
Technical Context
The HD64N3664FPV implements the H8/300H CPU architecture with 16-bit ALU, 32 general-purpose registers (16-bit), and 24-bit address bus enabling full 16 MB linear addressing. Its memory map integrates 32 KB of on-chip ROM (user-programmable flash), 2 KB of SRAM, and supports external memory expansion via 16-bit data bus and dedicated address strobes.
Peripherals include two 16-bit timer/counters with input capture/output compare, one 8-bit timer, a UART with framing/error detection, an I²C-compatible serial interface, and 64 I/O pins configurable as general-purpose or peripheral function pins. Clock generation supports crystal (1–20 MHz), ceramic resonator, or external clock input with programmable prescalers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core, instruction-set compatible with H8/300, enabling software reuse across legacy H8 platforms. |
| Max Operating Frequency | 20 MHz - determines real-time interrupt latency and loop execution speed in deterministic control applications. |
| On-Chip Memory | 32 KB ROM (flash) + 2 KB RAM - sufficient for standalone firmware with minimal external memory dependency. |
| I/O Pins | 64 multifunction pins - supports parallel interface, GPIO, and peripheral signal routing without external glue logic. |
| Supply Voltage | 3.3 V ±10% or 5 V ±10% - enables interoperability with both modern low-voltage and legacy 5 V logic systems. |
| Package | 80-pin PQFP (14 × 20 mm, 0.65 mm pitch) - standard surface-mount footprint compatible with automated PCB assembly. |
| Peripheral Set | UART ×1, I²C ×1, 16-bit timers ×2, 8-bit timer ×1, watchdog - provides essential communication and timing for sensor interfacing and motor control. |
Pinout & Package
HD64N3664FPV is housed in an 80-pin Plastic Quad Flat Package (PQFP) with 0.65 mm lead pitch, JEDEC MS-026 compliant, suitable for reflow soldering and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC pins (pins 13, 41) and multiple VSS (pins 14, 42, 79) ensure stable core and I/O rail decoupling and noise immunity. |
| XTAL1/XTAL2 | Crystal oscillator input/output | Supports fundamental-mode quartz crystals (1–20 MHz) for precise system clock generation without external oscillator IC. |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU state and initializes peripherals; requires external pull-up and debouncing for reliable power-on behavior. |
| INT0–INT7 | External interrupt inputs | Edge-selectable (rising/falling) interrupts with priority encoding enable responsive event handling from sensors or switches. |
| TXD0/RXD0 | UART channel 0 serial I/O | Full-duplex asynchronous communication at up to 115.2 kbps - used for debug console or host-device command interface. |
| SDA/SCL | I²C bus signals | Open-drain bidirectional lines supporting multi-master, multi-slave topology for connecting EEPROMs, temperature sensors, or ADCs. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash ROM (32 KB) | Enables field firmware updates and eliminates need for external EPROM, reducing BOM cost and board area. |
| H8/300H Instruction Compatibility | Allows direct porting of existing H8/300 codebase, shortening development cycle for legacy system upgrades. |
| Multiple Power-Down Modes | Sleep, Standby, Subsleep, and Subactive modes reduce active current to <10 µA, extending battery life in portable instrumentation. |
| Integrated UART with FIFO-like buffering | Reduces CPU overhead during serial data transfer by minimizing interrupt frequency per byte transmitted/received. |
| Programmable I/O Port Functions | Each of 64 I/O pins can be assigned to alternate peripheral functions (e.g., timer output, UART TX) via mode registers - increases design flexibility without hardware changes. |
Applications
| Industrial PLC I/O Module | Legacy Factory Automation Controller |
|---|---|
Use Scenario: Modular I/O expansion unit in distributed control systems, reading analog/digital sensor inputs and driving relay outputs. IC Role / Device Role / Timing Role: Central controller managing local I/O scanning, protocol translation (Modbus RTU over UART), and watchdog-timed safety monitoring. Use Value: On-chip 32 KB flash stores application firmware and configuration tables; 64 GPIO pins directly interface with opto-isolated input/output circuits without level-shifter ICs. | Use Scenario: Replacement mainboard MCU in aging CNC machine controllers requiring drop-in compatibility with existing H8-based firmware. IC Role / Device Role / Timing Role: Real-time motion trajectory calculation engine synchronized to encoder feedback via timer input capture. Use Value: H8/300H instruction compatibility ensures zero-modification firmware reuse; 20 MHz max clock sustains 100 µs servo loop timing. |
| Medical Diagnostic Equipment Front Panel | Test & Measurement Data Logger |
Use Scenario: User interface and status monitoring subsystem in ultrasound or ECG analyzers, handling button inputs, LED indicators, and serial communication with main processor. IC Role / Device Role / Timing Role: Dedicated UI co-processor offloading human-interface tasks, operating independently under watchdog supervision. Use Value: Dual-voltage (3.3 V/5 V) I/O allows direct connection to both modern display drivers and legacy panel switches; low-power modes extend standby time between uses. | Use Scenario: Standalone environmental data acquisition node logging temperature, humidity, and voltage readings to SD card via SPI (using bit-banged GPIO). IC Role / Device Role / Timing Role: Primary data acquisition controller executing timed sampling, preprocessing, and storage management. Use Value: Integrated 16-bit timers provide precise 1 s sampling intervals; on-chip RAM buffers 256 samples before SD write, minimizing flash wear. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3664FPV | Same pinout and peripheral set, but uses mask ROM instead of flash - firmware is factory-programmed and non-updatable. | Suitable only for high-volume, fixed-function products where field updates are unnecessary. | Select HD64F3664FPV when firmware stability and cost-per-unit outweigh need for post-deployment updates. |
| R5F3664ADFP | Successor in RL78/G13 family: 16-bit core, 128 KB flash, lower power (120 µA/MHz), but not instruction-compatible - requires full firmware rewrite. | Targeted at new designs prioritizing energy efficiency and extended memory, not legacy migration. | Choose R5F3664ADFP for greenfield projects needing longer product lifecycle and enhanced low-power features. |
Compared with HD64N3664FPV, HD64F3664FPV trades field programmability for lower unit cost and higher ROM density, while R5F3664ADFP offers modern power efficiency and larger memory at the expense of binary compatibility and toolchain migration effort.
Availability
HD64N3664FPV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, legacy factory automation controllers, and medical diagnostic equipment front panels requiring stable component supply and long-term obsolescence management.
Supply support for HD64N3664FPV 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 enterprise applications.
The H8/3664 Group, including HD64N3664FPV, was designed for cost-sensitive, reliability-critical embedded control in industrial instrumentation and factory automation where long-lifecycle support and binary compatibility with legacy H8 systems are essential.
FAQ
What is the maximum operating frequency of the HD64N3664FPV?
The HD64N3664FPV supports a maximum operating frequency of 20 MHz when using an external crystal or clock source within specification. This frequency defines the upper limit for instruction execution speed and peripheral timing resolution. The actual achievable frequency depends on supply voltage (3.3 V or 5 V), ambient temperature, and clock source stability. HD64N3664FPV must be operated within the electrical characteristics specified in its Renesas Hardware Manual Rev. 6.00.
Does the HD64N3664FPV support in-system programming of its on-chip flash memory?
Yes, the HD64N3664FPV supports on-board programming of its 32 KB flash ROM via its built-in boot mode and dedicated programming interface. Programming requires entry into boot mode using specific pin configurations and adherence to timing and voltage requirements outlined in the Renesas H8/3664 Group Hardware Manual. HD64N3664FPV does not require external programmers for basic flash writes, though Renesas E8 emulator enables advanced debugging and programming workflows.
Is the HD64N3664FPV pin-compatible with other members of the H8/3664 Group?
Yes, the HD64N3664FPV shares identical pinout and package (80-pin PQFP) with HD64F3664FPV and HD6433664FPV. All three variants are mechanically and electrically interchangeable on PCBs designed for the H8/3664 footprint. However, differences in memory type (flash vs. mask ROM) and default reset vector behavior require firmware validation before substitution. HD64N3664FPV retains full functional compatibility in shared peripheral and I/O configurations.
What power supply voltages does the HD64N3664FPV support?
The HD64N3664FPV operates from either 3.3 V ±10% or 5 V ±10%, selectable via internal voltage regulator configuration and external VCC routing. This dual-voltage capability allows direct integration into mixed-signal systems containing both modern 3.3 V peripherals and legacy 5 V logic. HD64N3664FPV's I/O pins are tolerant of the selected supply voltage, eliminating need for level shifters in most interface scenarios.
Which development tools are officially supported for the HD64N3664FPV?
Renesas officially supports the E8 in-circuit emulator and High-performance Embedded Workshop (HEW) IDE for HD64N3664FPV firmware development, debugging, and flash programming. The H8/300H Series Software Manual (REJ09B0213) and H8/3664 Group Hardware Manual (Rev. 6.00) serve as primary documentation. HD64N3664FPV is also compatible with third-party GCC-based toolchains targeting the H8/300H ISA, though official Renesas tool support ensures full register-level debugging and timing analysis.
HD64N3664FPV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- H8® H8/300H Tiny
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8/300H
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, SCI
- Peripherals:
- PWM, WDT
- Number of I/O:
- 27
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K 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:
HD64N3664FPV FAQ
1.How can I place an order for HD64N3664FPV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64N3664FPV 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 HD64N3664FPV reliable?
The price and inventory of HD64N3664FPV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64N3664FPV is usually 5 days.
3.What payment methods are accepted for HD64N3664FPV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64N3664FPV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64N3664FPV?
HD64N3664FPV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64N3664FPV 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 HD64N3664FPV?
For technical support, including HD64N3664FPV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64N3664FPV requirements.
6.How does Aetrix verify that HD64N3664FPV is sourced from the original manufacturer or authorized distributors?
All HD64N3664FPV 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 HD64N3664FPV meets industry standards.
7.What is the process for return or replacement of HD64N3664FPV?
All HD64N3664FPV units undergo pre-shipment inspection (PSI). If there is an issue with HD64N3664FPV, 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 HD64N3664FPV part is unused and in its original packaging.
Return procedure for HD64N3664FPV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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