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Renesas HD64F3694GHV
- Part No.:
- HD64F3694GHV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-BQFP
- Datasheet:
-
HD64F3694GHV.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,422
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Product details
Overview
HD64F3694GHV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/3694 Group, featuring the H8/300H CPU core with 16 MB address space, 32 KB on-chip ROM, and 2 KB RAM. It supports multiple power-down modes (Sleep, Standby, Subsleep, Subactive), operates at up to 20 MHz, and targets embedded control applications in office equipment and industrial systems.
For engineers reviewing the HD64F3694GHV datasheet, HD64F3694GHV pinout, HD64F3694GHV application, or HD64F3694GHV equivalent, key selection criteria include its 100-pin PQFP package, integrated clock pulse generators (main + subclock), on-chip flash programming capability, and support for external bus expansion with wait-state control.
Technical Context
The HD64F3694GHV implements the H8/300H CPU architecture with instruction set compatibility to the H8/300, supporting 16-bit data paths and 24-bit addressing. It integrates system-control modules including reset, clock generation (crystal/ceramic resonator or external clock input), and power management registers (SYSCR1/SYSCR2) for mode transitions.
Peripheral functions include programmable I/O ports (P1–P15), 16-bit timer/counters (TGRA–TGRD), serial interface (SCI), watchdog timer, and interrupt controllers (IEGR1/IEGR2, IENR1, IRR1). Memory mapping allocates fixed regions for on-chip ROM (0x000000–0x007FFF), RAM (0x008000–0x0087FF), and peripheral registers (0x00F000–0x00FFFF).
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 | 32 KB ROM (flash-programmable) + 2 KB RAM - supports standalone firmware execution without external memory |
| Power Modes | Sleep, Standby, Subsleep, Subactive - reduces current to ≤10 µA in Subsleep mode for battery-backed operation |
| Package | 100-pin plastic quad flat pack (PQFP), 14 × 20 mm body, 0.65 mm pitch - compatible with standard SMT reflow profiles |
| Supply Voltage | 3.0 V to 5.5 V - allows direct interface with legacy 5 V logic or low-power 3.3 V systems |
| Interrupt Sources | 28 vectored interrupts including external pins (IRQ0–IRQ7), timers, SCI, and wakeup events - enables deterministic response latency under 1.2 µs |
Pinout & Package
HD64F3694GHV is housed in a 100-pin PQFP (Plastic Quad Flat Package) with 0.65 mm lead pitch and 14 mm × 20 mm body size. Pin assignments follow the H8/3694 Group standard layout defined in Section 1.3 and 1.4 of the Hardware Manual Rev.5.00.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs per side ensure stable core voltage delivery and reduce ground bounce in high-speed I/O switching |
| XTAL, EXTAL | Main system clock input | Accepts 1–20 MHz crystal or ceramic resonator; internal oscillator circuit eliminates need for external capacitors in basic configurations |
| CLKOUT | System clock output | Provides buffered 1/1, 1/2, or 1/4 system clock for synchronizing external peripherals or test instrumentation |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers and initializes I/O port states to known safe values |
| P10–P17, P20–P27, etc. | Programmable I/O ports | Bi-directional CMOS ports with individual direction control; default high-impedance on power-up prevents floating inputs |
| INT0–INT7 | External interrupt inputs | Edge-selectable (rising/falling) via IEGR1/IEGR2 registers; support priority-based nested interrupt handling |
| RD, WR, AS, DTACK | External bus interface signals | Enable connection to external memory or peripherals using standard asynchronous bus protocol with wait-state insertion |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash ROM | 32 KB reprogrammable flash memory with sector erase and byte-write capability - enables field firmware updates without external programmers |
| Multi-mode Power Management | Four distinct low-power modes (Sleep/Standby/Subsleep/Subactive) controlled by SYSCR1/SYSCR2 - extends battery life in portable instrumentation |
| Integrated Clock System | Dual clock sources: main (1–20 MHz) + subclock (32.768 kHz) - supports RTC functionality and fast wake-up from deep sleep |
| Hardware Watchdog Timer | Independent 16-bit counter with windowed enable/disable and reset-on-timeout - prevents system lockup in unattended industrial controllers |
| Programmable I/O Ports | Over 80 general-purpose I/O pins with configurable pull-up resistors and interrupt-on-change capability - simplifies sensor interfacing and discrete control logic |
Applications
| Industrial PLC I/O Module | Office Equipment Controller |
|---|---|
Use Scenario: Localized digital I/O expansion in modular programmable logic controllers with distributed architecture. IC Role / Device Role / Timing Role: Primary controller managing 16-channel opto-isolated inputs and relay outputs via parallel port interfaces and timer-driven scan cycles. Use Value: On-chip 32 KB flash stores ladder logic interpreter firmware; multi-power modes reduce standby consumption to <15 µA during idle polling intervals. | Use Scenario: Mainboard control unit in multifunction printers handling paper feed, toner sensing, and USB host communication. IC Role / Device Role / Timing Role: Central microcontroller coordinating motor drivers, sensor ADCs, and USB-to-parallel bridge ICs through GPIO and SCI. Use Value: Integrated 20 MHz clock generator eliminates external oscillator components; 2 KB RAM buffers print job data without external SRAM. |
| Test & Measurement Front-End | Home Appliance Control Panel |
Use Scenario: Signal conditioning and display driver in handheld multimeters with LCD and keypad interface. IC Role / Device Role / Timing Role: Real-time sampling controller using built-in timers to trigger ADC conversions and update segmented LCD segments every 100 ms. Use Value: Subclock domain enables accurate timekeeping during measurement pauses; IRQ7 pin supports momentary button press detection with debouncing in firmware. | Use Scenario: User interface and safety monitoring module in microwave ovens with touchpad, cavity temperature sensing, and door interlock logic. IC Role / Device Role / Timing Role: Safety-critical supervisor verifying door latch status, magnetron enable timing, and thermal cutoff responses within 2 ms. Use Value: Hardware watchdog ensures fail-safe shutdown if firmware hangs; dedicated INT0 pin provides immediate response to door-open interrupt. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3687FV | Same H8/3694 family, 24 KB ROM, 1 KB RAM, identical 100-pin PQFP package and pinout | Lower memory capacity suits simpler control tasks without complex UI or logging | Select when firmware size ≤24 KB and BOM cost optimization is prioritized over future scalability |
| HD64F3692FV | Pin-compatible variant with 16 KB ROM, 1 KB RAM, same peripheral set and clock architecture | Targeted at cost-sensitive consumer appliances with minimal feature requirements | Choose for entry-level designs where flash overhead and RAM headroom are not critical constraints |
Compared with HD64F3694GHV, HD64F3687FV offers reduced memory but identical timing and I/O behavior, while HD64F3692FV further scales down resources-both retain full software compatibility and require no PCB changes when substituting within the same footprint.
Availability
HD64F3694GHV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, office equipment controllers, and test & measurement front-ends requiring stable component supply across extended production lifecycles.
Supply support for HD64F3694GHV 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 H8/3694 Group was designed for cost-effective, low-power embedded control in office automation, industrial machinery, and consumer electronics - emphasizing integration, code efficiency, and long-term supply stability.
FAQ
What is the maximum operating frequency of the HD64F3694GHV?
The HD64F3694GHV supports a maximum operating frequency of 20 MHz when powered at 4.5–5.5 V, and 16 MHz at 3.0–4.4 V. This rating is confirmed in Section 8 "Electrical Characteristics" of the H8/3694 Group Hardware Manual Rev.5.00. The HD64F3694GHV achieves this speed using its internal clock pulse generator with external crystal or resonator input on XTAL/EXTAL pins.
Does the HD64F3694GHV support in-system programming of its on-chip ROM?
Yes, the HD64F3694GHV supports on-board programming of its 32 KB flash ROM via the on-chip debug interface or boot mode using standard UART or parallel programming protocols. Section 7.3 of the Hardware Manual details three programming modes, including single-voltage (VCC-only) write/erase operations. The HD64F3694GHV requires no external high-voltage supply for flash updates.
What power-down modes does the HD64F3694GHV offer and how do they differ?
The HD64F3694GHV implements four hardware-controlled power-down modes: Sleep (CPU halted, peripherals active), Standby (CPU and most peripherals halted, RAM retained), Subsleep (subclock domain active only, ~10 µA), and Subactive (subclock running, selected I/O active). These are configured via SYSCR1 and SYSCR2 registers. Each mode of the HD64F3694GHV provides progressively deeper power savings while preserving specific wake-up sources and register states.
Is the HD64F3694GHV pin-compatible with other devices in the H8/3694 Group?
Yes, the HD64F3694GHV shares identical pin assignment and electrical characteristics with all members of the H8/3694 Group in the 100-pin PQFP package, including HD64F3694, HD64F3694G, HD64N3694G, and HD6483694G. Pin compatibility is guaranteed per Section 1.3 "Pin Arrangement" and Section 1.4 "Pin Functions" of the Hardware Manual Rev.5.00, enabling drop-in replacement within the same package variant.
What development tools are officially supported for the HD64F3694GHV?
Renesas officially supports the E7 and E8 on-chip emulators for HD64F3694GHV firmware development and debugging. These tools connect via dedicated pins (NMI, P85–P87) and use reserved memory regions (H'7000–H'7FFF and H'F780–H'FB7F). The HD64F3694GHV also integrates with High-Performance Embedded Workshop 3 and the H8S/H8/300 Series C/C++ Compiler (REJ10B0058). All tool documentation is available at renesas.com.
HD64F3694GHV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-BQFP
- 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:
- LVD, POR, 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:
HD64F3694GHV FAQ
1.How can I place an order for HD64F3694GHV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64F3694GHV 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 HD64F3694GHV reliable?
The price and inventory of HD64F3694GHV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64F3694GHV is usually 5 days.
3.What payment methods are accepted for HD64F3694GHV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64F3694GHV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64F3694GHV?
HD64F3694GHV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64F3694GHV 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 HD64F3694GHV?
For technical support, including HD64F3694GHV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64F3694GHV requirements.
6.How does Aetrix verify that HD64F3694GHV is sourced from the original manufacturer or authorized distributors?
All HD64F3694GHV 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 HD64F3694GHV meets industry standards.
7.What is the process for return or replacement of HD64F3694GHV?
All HD64F3694GHV units undergo pre-shipment inspection (PSI). If there is an issue with HD64F3694GHV, 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 HD64F3694GHV part is unused and in its original packaging.
Return procedure for HD64F3694GHV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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