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Renesas HD64F3694FPV
- Part No.:
- HD64F3694FPV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
HD64F3694FPV.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,609
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Product details
Overview
HD64F3694FPV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/300H Tiny Series, featuring an H8/300H CPU core with H8/300 instruction set compatibility, 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 HD64F3694FPV datasheet, HD64F3694FPV pinout, HD64F3694FPV application, or HD64F3694FPV equivalent, key selection considerations include its 100-pin PQFP package, 5 V operation, on-chip flash programming capability, and support for multiple power-down modes including Sleep, Standby, and Subsleep.
Technical Context
The HD64F3694FPV implements the H8/300H CPU architecture with 24-bit addressing, supporting both byte- and word-aligned memory access. Its system clock generator accepts external crystal (1–20 MHz), ceramic resonator, or external clock input, and includes a dedicated subclock generator for 32.768 kHz real-time clock operation.
Interrupt handling uses configurable edge-select registers (IEGR1/IEGR2) and enable/flag registers (IENR1/IRR1), supporting up to 63 interrupt sources with vectorized priority-based servicing. The device integrates a flash memory controller (FLMCR1/FLMCR2) enabling in-system programming via on-board programming modes without external UV erasure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core, instruction-compatible with H8/300, enabling legacy code reuse |
| Max Operating Frequency | 20 MHz - determines real-time response latency and throughput for control loops |
| On-Chip Memory | 64 KB ROM (flash), 4 KB RAM - sufficient for standalone firmware with moderate peripheral drivers |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V logic systems and industrial power rails |
| I/O Pins | 80 general-purpose I/O pins - supports direct interface to sensors, actuators, and displays without glue logic |
| Power Modes | Sleep, Standby, Subsleep, Subactive - enables µA-level standby current for battery-backed applications |
| Peripherals | 2x UART, 3x 16-bit timers, watchdog timer, 8-channel 10-bit ADC - covers core industrial monitoring and actuation needs |
Pinout & Package
HD64F3694FPV is housed in a 100-pin Plastic Quad Flat Package (PQFP) with 0.65 mm lead pitch, designed for surface-mount reflow assembly and thermal dissipation in compact industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs per side ensure stable core and I/O rail decoupling |
| XTAL1, XTAL2 | Crystal oscillator input/output | Supports fundamental-mode quartz crystals up to 20 MHz for precise system timing |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; requires external RC or supervisor for reliable power-on initialization |
| IRQ0–IRQ7 | External interrupt inputs | Edge-selectable (rising/falling) via IEGR1/IEGR2 registers; mapped to priority levels 1–7 |
| TXD0, RXD0 | UART0 serial transmit/receive | Full-duplex asynchronous communication at baud rates up to 1 Mbps (at 20 MHz) |
| AD0–AD7 | Analog input channels | 8-channel 10-bit ADC with internal reference; conversion time ≤ 10 µs per sample |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash ROM | 64 KB reprogrammable flash enables field firmware updates without socketed EPROM replacement |
| Multiple Power-Down Modes | Subsleep mode draws < 10 µA at 5 V, extending battery life in portable instrumentation |
| Configurable Interrupt System | 63 interrupt sources with programmable edge sensitivity and priority levels reduce external interrupt logic |
| Integrated 10-bit ADC | 8-channel SAR ADC with internal reference eliminates need for external voltage reference ICs |
| H8/300 Instruction Compatibility | Enables migration of existing H8/300 codebase with minimal modification, lowering software development cost |
Applications
| Industrial PLC I/O Module | Home Appliance Control Unit |
|---|---|
Use Scenario: Monitoring temperature, motor status, and safety interlocks in DIN-rail mounted PLC expansion modules. IC Role / Device Role / Timing Role: Central controller executing ladder logic scan cycles, managing serial Modbus RTU communication, and driving opto-isolated outputs. Use Value: 80 GPIO pins and dual UARTs allow direct connection to RS-485 transceivers and sensor arrays without level-shifting or multiplexing. | Use Scenario: Managing wash cycle sequencing, water heating, drum rotation, and user interface in front-loading washing machines. IC Role / Device Role / Timing Role: Real-time task scheduler coordinating motor control PWM, thermistor ADC sampling, and LED display refresh. Use Value: Subsleep mode reduces standby power to < 10 µA, meeting IEC 62301 standby energy requirements for white goods. |
| Point-of-Sale Terminal Controller | Building Automation Sensor Node |
Use Scenario: Coordinating receipt printing, barcode scanning, cash drawer actuation, and secure payment interface in retail POS hardware. IC Role / Device Role / Timing Role: Host processor interfacing with USB-to-serial bridge, thermal printer head driver, and magnetic stripe reader. Use Value: 64 KB flash stores full application firmware plus localized language strings; 4 KB RAM accommodates transaction buffer and stack depth. | Use Scenario: Collecting CO₂, humidity, and occupancy data in HVAC ducts and transmitting via RS-485 to central BMS controllers. IC Role / Device Role / Timing Role: Low-power sensor aggregator with periodic wake-up, ADC acquisition, and UART-based data framing. Use Value: Integrated 32.768 kHz subclock generator enables accurate time-stamped logging without external RTC IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3687FPV | Same H8/300H core, 32 KB ROM, 2 KB RAM, identical 100-pin PQFP package and pinout | Lower memory capacity suits simpler control tasks with smaller firmware footprints | Select when application firmware fits within 32 KB and cost optimization is prioritized over future scalability |
| R5F100LEAFP | RL78/G13 16-bit core, 128 KB flash, 12 KB RAM, different instruction set and peripheral register map | Higher integration (hardware multiplier, DMA, more timers) but requires full firmware porting effort | Choose for new designs requiring enhanced processing headroom and long-term roadmap support beyond H8 lifecycle |
Compared with HD64F3694FPV, HD64F3687FPV offers identical footprint and software compatibility at reduced memory, while R5F100LEAFP provides greater performance and modern peripherals but demands complete firmware rework and PCB layout revision.
Availability
HD64F3694FPV is available at Aetrix Electronics and suitable for industrial automation, home appliance control, and point-of-sale terminal applications requiring stable component supply and long-term manufacturing continuity.
Supply support for HD64F3694FPV 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 markets.
The HD64F3694FPV belongs to the H8/3694 Group - a family of cost-optimized 16-bit MCUs designed for resource-constrained embedded control in industrial equipment and consumer electronics where reliability and toolchain maturity are critical.
FAQ
What is the maximum operating frequency of the HD64F3694FPV?
The HD64F3694FPV supports a maximum operating frequency of 20 MHz when driven by an external crystal or clock source. This frequency defines the upper limit for instruction execution speed and peripheral timing resolution. At 20 MHz, the HD64F3694FPV achieves approximately 12.5 MIPS (Million Instructions Per Second) under typical conditions. The system clock generator includes prescalers to derive lower-frequency clocks for peripherals, ensuring deterministic timing across all modules within the HD64F3694FPV.
Does the HD64F3694FPV support in-system programming of its on-chip flash memory?
Yes, the HD64F3694FPV supports in-system programming (ISP) of its 64 KB on-chip flash ROM using on-board programming modes. Programming is performed via dedicated pins (e.g., MODE, RESET, and serial interface lines) without requiring UV erasure or external programmers. The HD64F3694FPV's flash memory controller (registers FLMCR1/FLMCR2) manages erase and write operations with built-in verification. This capability allows firmware updates in the field or during final test, reducing manufacturing complexity and enabling post-deployment feature enhancements for the HD64F3694FPV.
What power-saving modes are available on the HD64F3694FPV?
The HD64F3694FPV implements four low-power modes: Sleep, Standby, Subsleep, and Subactive. In Subsleep mode, current consumption drops below 10 µA at 5 V with the subclock running - ideal for time-critical wake-up events. Sleep mode halts the main clock while retaining RAM and register contents. Standby disables all clocks except the subclock oscillator. Subactive mode reduces CPU clock frequency while keeping peripherals active. These modes are controlled via SYSCR1/SYSCR2 registers and enable precise power/performance trade-offs in battery-powered or energy-sensitive applications using the HD64F3694FPV.
Is the HD64F3694FPV pin-compatible with other devices in the H8/3694 Group?
Yes, the HD64F3694FPV shares the same 100-pin PQFP package and pin assignment with other members of the H8/3694 Group, including HD64F3694, HD64F3694G, and HD64N3694G. This pin compatibility allows hardware design reuse across variants differing in memory size (e.g., 32 KB vs. 64 KB ROM) or process technology (e.g., standard vs. low-power). However, firmware must verify memory map alignment and peripheral enable settings, as some variants may disable certain modules. The HD64F3694FPV maintains full electrical and mechanical interoperability within this family.
What development tools are supported for the HD64F3694FPV?
The HD64F3694FPV is supported by Renesas' legacy H8 development ecosystem, including the High-Performance Embedded Workshop (HEW) IDE, H8/300H C/C++ Compiler (REJ10B0058), and E7/E8 in-circuit emulators. Debugging requires reserving NMI, P85, P86, and P87 pins per hardware manual restrictions. Application notes such as REJ05B0464 provide compiler usage guidance, and the H8/300H Series Software Manual (REJ09B0213) documents instruction-level behavior. While newer RL78 tools do not support the HD64F3694FPV, its mature toolchain ensures stable firmware development for maintenance and legacy production of the HD64F3694FPV.
HD64F3694FPV 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:
- 20MHz
- Connectivity:
- I2C, SCI
- Peripherals:
- PWM, WDT
- Number of I/O:
- 29
- 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:
HD64F3694FPV FAQ
1.How can I place an order for HD64F3694FPV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64F3694FPV 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 HD64F3694FPV reliable?
The price and inventory of HD64F3694FPV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64F3694FPV is usually 5 days.
3.What payment methods are accepted for HD64F3694FPV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64F3694FPV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64F3694FPV?
HD64F3694FPV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64F3694FPV 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 HD64F3694FPV?
For technical support, including HD64F3694FPV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64F3694FPV requirements.
6.How does Aetrix verify that HD64F3694FPV is sourced from the original manufacturer or authorized distributors?
All HD64F3694FPV 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 HD64F3694FPV meets industry standards.
7.What is the process for return or replacement of HD64F3694FPV?
All HD64F3694FPV units undergo pre-shipment inspection (PSI). If there is an issue with HD64F3694FPV, 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 HD64F3694FPV part is unused and in its original packaging.
Return procedure for HD64F3694FPV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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