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Renesas HD6473644RDV
- Part No.:
- HD6473644RDV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
HD6473644RDV.pdf
- Description:
- MICROCONTROLLER, 16-BIT, OTPROM
- Quantity:
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Inventory:2,879
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Product details
Overview
HD6473644RDV from Renesas Technology Corp. is a 16-bit single-chip microcomputer in the H8/3644R Series, featuring an H8/300L CPU core, 64 KB on-chip ROM, 4 KB RAM, integrated 10-bit A/D converter (8 channels), 14-bit PWM, and dual serial communication interfaces (SCI). It operates at up to 20 MHz and targets real-time motor control and industrial automation systems requiring deterministic timing and analog feedback.
For engineers reviewing the HD6473644RDV datasheet, HD6473644RDV pinout, HD6473644RDV application, or HD6473644RDV equivalent, key selection criteria include its on-chip flash memory architecture, five independent timers (including Timer V with input capture/output compare), low-power sleep/standby modes, and compatibility with H8/300L instruction set for legacy code reuse.
Technical Context
The HD6473644RDV implements the H8/300L CPU with full backward compatibility to the H8/300 instruction set and supports 16-MB linear address space. Its peripheral set includes a programmable 14-bit PWM module with dead-time insertion, two independent SCI modules supporting asynchronous and clock-synchronous modes, and a 10-bit A/D converter with sample-and-hold and hardware-triggered conversion sequencing.
Power management is handled via six operational modes - Active (Medium-Speed), Subactive, Sleep, Standby, Watch, and Subsleep - each with distinct clock domain gating and wake-up source configuration. Flash memory programming is supported in-circuit via boot mode with dedicated FLMCR, EBR1, and EBR2 registers enabling block erase and byte/word programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300L 16-bit RISC core, fully compatible with H8/300 instruction set for legacy firmware portability |
| ROM Capacity | 64 KB on-chip flash memory, organized in 256-byte blocks for selective erase and field firmware updates |
| RAM Size | 4 KB on-chip SRAM, accessible in all active power modes with no wait states at ≤20 MHz |
| A/D Converter | 10-bit successive-approximation ADC with 8 input channels, hardware-triggered scan, and 1.6 µs conversion time |
| PWM Resolution | 14-bit resolution with configurable center-aligned or edge-aligned output, supporting motor phase control |
| Timers | Five timers: Timer A (16-bit input capture/output compare), Timer B1 (16-bit general purpose), Timer V (16-bit with input capture, output compare, and pulse-width modulation) |
| Serial Interfaces | Dual SCI modules: one supports asynchronous UART mode; the other supports both UART and clock-synchronous master/slave modes |
Pinout & Package
HD6473644RDV is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined across 10 I/O ports (P1–P9, PB), clock inputs (XIN/XOUT), reset (RES), interrupt request lines (IRQ0–IRQ3), and dedicated peripheral pins including ADTRG (A/D trigger), PWMA/PWMB (PWM outputs), and TXD/RXD for both SCIs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RES | Active-low reset input | Asynchronous hardware reset; must be held low ≥1024 cycles after power stabilization to ensure reliable initialization |
| XIN / XOUT | Crystal oscillator input/output | Supports 1–20 MHz crystal or external clock; internal oscillator circuit enables stable system clock generation without external components |
| ADTRG | A/D conversion trigger | Hardware-synchronized start signal for A/D conversion; allows precise timing alignment with PWM or timer events |
| PWMA / PWMB | PWM output terminals | Dedicated high-resolution PWM outputs with complementary dead-time control for three-phase inverter gate drive |
| TXD0 / RXD0 | SCI0 transmit/receive data | Full-duplex UART interface for host communication or debug console; supports baud rates up to 1 Mbps at 20 MHz CPU clock |
| IRQ0–IRQ3 | External interrupt inputs | Four individually maskable level-sensitive interrupt sources, usable for emergency stop, limit switch, or encoder index detection |
Key Features
| Feature | Design Value |
|---|---|
| On-chip flash memory | 64 KB reprogrammable flash with block-erase granularity (256-byte blocks), enabling field firmware updates without external programmers |
| Integrated 14-bit PWM | Configurable center-aligned output with programmable dead-time insertion, directly driving gate drivers in motor inverters |
| Hardware A/D trigger synchronization | ADTRG pin allows precise, jitter-free A/D sampling aligned to PWM zero-crossing or timer overflow events |
| Multi-mode power management | Six low-power modes with sub-µA standby current and <10 µs wake-up latency from Sleep mode for responsive real-time control |
| Dual SCI with synchronous capability | Second SCI supports clock-synchronous master/slave mode for daisy-chained sensor networks or digital isolator interfaces |
Applications
| Brushless DC Motor Control | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Closed-loop commutation of 3-phase BLDC motors using hall-effect or encoder feedback. IC Role / Device Role / Timing Role: Real-time execution of FOC (field-oriented control) algorithms, PWM waveform generation, and synchronized A/D sampling of phase currents. Use Value: 14-bit PWM resolution and hardware-triggered A/D enable <±0.5° electrical angle control accuracy under dynamic load conditions. |
Use Scenario: Modular digital input/output expansion for DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Local intelligence node handling signal conditioning, isolation interface management, and protocol translation between fieldbus and backplane. Use Value: Dual SCI with synchronous mode supports RS-485 Modbus RTU and SPI-isolated sensor bus simultaneously without CPU overhead. |
| Smart Power Supply Monitoring | Embedded HVAC Controller |
|
Use Scenario: Real-time monitoring and protection of AC/DC and DC/DC power converters in telecom rectifiers. IC Role / Device Role / Timing Role: Analog sensing of voltage/current/temperature, overcurrent fault detection, and soft-start sequencing via PWM-controlled gate drivers. Use Value: Five independent timers allow concurrent measurement of input ripple frequency, output regulation loop timing, and thermal decay intervals. |
Use Scenario: Zone-level climate control unit managing fan speed, valve actuation, and occupancy-based scheduling. IC Role / Device Role / Timing Role: Integrated A/D and PWM replace discrete analog front-end and motor driver ICs, reducing BOM count and PCB area. Use Value: On-chip 64 KB flash stores multiple HVAC profiles and calibration tables; 4 KB RAM supports real-time PID computation with 10 ms loop cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3644 | Mask ROM version (no flash); identical pinout, peripherals, and instruction set but requires factory-programmed firmware | Best suited for high-volume, fixed-function applications where field updates are unnecessary and cost-per-unit is critical | Select HD64F3644 only when firmware is finalized and production volumes exceed 50k units/year to justify mask ROM NRE savings |
| R5F566TEADFP | RX66T-based 32-bit MCU with FPU, higher clock (160 MHz), and enhanced timer GPTA; not pin-compatible, larger QFP-100 package | Required for vector control of PMSM motors with complex observer algorithms or multi-axis coordination | Choose R5F566TEADFP when migrating from HD6473644RDV for increased computational headroom, not as drop-in replacement |
Compared with HD64F3644 and R5F566TEADFP, the HD6473644RDV uniquely balances field-upgradable flash, deterministic 16-bit real-time performance, and mature toolchain support - making it optimal for cost-sensitive, medium-complexity industrial control where firmware evolution is expected but architectural overhaul is not justified.
Availability
HD6473644RDV is available at Aetrix Electronics and suitable for brushless DC motor control, industrial PLC I/O modules, and smart power supply monitoring requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for HD6473644RDV 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 Technology Corp. was formed in 2003 through the merger of Hitachi and Mitsubishi Electric's semiconductor operations, specializing in microcontrollers, analog, and power devices for industrial and automotive markets.
The HD6473644RDV belongs to the H8/3644R Series - a family designed specifically for deterministic real-time control in motor drives, power electronics, and factory automation where low-latency peripheral response and flash-based firmware agility are essential.
FAQ
What is the maximum operating frequency of the HD6473644RDV?
The HD6473644RDV supports a maximum system clock frequency of 20 MHz when using an external crystal or clock source. This frequency is sustained across all active power modes and enables deterministic execution of real-time control loops with sub-10 µs interrupt latency. The internal clock generator includes prescalers and dividers that allow flexible configuration of peripheral clocks while maintaining CPU timing integrity. HD6473644RDV achieves this performance within specified voltage (4.5–5.5 V) and temperature (−20°C to +75°C) ranges per its original Hitachi specification.
Does the HD6473644RDV support in-system programming of its flash memory?
Yes, the HD6473644RDV supports in-system programming (ISP) of its 64 KB on-chip flash memory via its built-in boot mode. Programming is initiated by asserting specific mode pins at reset, then using the SCI interface to load firmware images or execute erase/program commands through dedicated registers (FLMCR, EBR1, EBR2). HD6473644RDV requires no external programmer hardware, enabling field updates and production-line firmware customization without board removal.
How many analog input channels does the HD6473644RDV A/D converter support?
The HD6473644RDV integrates a 10-bit successive-approximation A/D converter with eight analog input channels (AN0–AN7), each selectable via software-controlled channel register. Conversion can be triggered manually, by internal timer overflow, or by the dedicated ADTRG pin for hardware-synchronized sampling. HD6473644RDV guarantees 1.6 µs conversion time and supports scan mode for sequential acquisition across multiple channels without CPU intervention.
Is the HD6473644RDV pin-compatible with other H8/3644R series microcontrollers?
Yes, the HD6473644RDV shares identical pinout and package (100-pin LQFP) with other members of the H8/3644R family, including HD6473644R and HD6433644R. This allows direct substitution in designs targeting different memory configurations or temperature grades, provided firmware accounts for differences in ROM size or peripheral enablement. HD6473644RDV maintains full electrical and functional compatibility at the pin level across this variant group.
What low-power modes are available on the HD6473644RDV?
The HD6473644RDV provides six configurable low-power modes: Sleep, Standby, Watch, Subsleep, Subactive, and Active (Medium-Speed). Each mode selectively gates clock domains to peripherals and CPU subsystems, achieving standby current as low as 1.5 µA and wake-up latency under 10 µs from Sleep mode. HD6473644RDV uses dedicated system control registers (e.g., PMST, STBCR) to enter and exit these modes, with wake-up sources including external interrupts, timer overflows, and serial receive events.
HD6473644RDV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
HD6473644RDV FAQ
1.How can I place an order for HD6473644RDV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD6473644RDV 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 HD6473644RDV reliable?
The price and inventory of HD6473644RDV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD6473644RDV is usually 5 days.
3.What payment methods are accepted for HD6473644RDV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD6473644RDV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD6473644RDV?
HD6473644RDV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD6473644RDV 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 HD6473644RDV?
For technical support, including HD6473644RDV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD6473644RDV requirements.
6.How does Aetrix verify that HD6473644RDV is sourced from the original manufacturer or authorized distributors?
All HD6473644RDV 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 HD6473644RDV meets industry standards.
7.What is the process for return or replacement of HD6473644RDV?
All HD6473644RDV units undergo pre-shipment inspection (PSI). If there is an issue with HD6473644RDV, 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 HD6473644RDV part is unused and in its original packaging.
Return procedure for HD6473644RDV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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