Renesas HD6473297FJ16V
- Part No.:
- HD6473297FJ16V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
HD6473297FJ16V.pdf
- Description:
- MCU 16-BIT, H8, 60KB ROM 5V
- Quantity:
- Payment:

- Shipping:

Inventory:225
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Product details
Overview
HD6473297FJ16V from Hitachi is a single-chip 16-bit microcontroller based on the H8/300 CPU core, featuring 60 KB mask-ROM, 2 KB RAM, three timer modules (16-bit free-running, dual 8-bit), 8-channel 10-bit A/D converter, UART-compatible serial interface, and 56 general-purpose I/O pins. It operates at up to 16 MHz and targets embedded motor control and industrial automation systems requiring deterministic real-time response.
For engineers reviewing the HD6473297FJ16V datasheet, HD6473297FJ16V pinout, HD6473297FJ16V application, or HD6473297FJ16V equivalent, key selection criteria include on-chip memory size, A/D resolution and channel count, timer architecture for PWM generation, serial protocol support, and availability in 100-pin PQFP packaging with industrial temperature range.
Technical Context
The HD6473297FJ16V implements the H8/300H instruction set with 16-bit data bus and 24-bit address space, supporting single-chip mode operation with internal ROM/RAM and external bus expansion capability. Its interrupt system includes 64 vector entries, priority-based nesting, and dedicated registers for fast context save/restore.
Hardware peripherals are tightly coupled to the CPU via dedicated internal buses: the A/D converter supports both software-triggered and timer-external-triggered conversion; the 16-bit free-running timer provides input capture, output compare, and PWM output with programmable prescaler; serial interface operates in asynchronous or synchronous mode with selectable baud rates via BRR register.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core with 24-bit addressing and 16-MHz max clock |
| ROM Size | 60 KB mask-ROM - fixed firmware storage enabling secure, cost-effective mass production |
| RAM Size | 2 KB on-chip RAM - sufficient for stack, variables, and small buffers without external memory |
| A/D Converter | 10-bit resolution, 8 input channels, 25 μs conversion time - suitable for analog sensor interfacing in motor feedback loops |
| Timers | One 16-bit free-running timer + two 8-bit timers - enables simultaneous PWM generation, input capture for encoder signals, and interval timing |
| Serial Interface | UART-compatible SCI with full-duplex async/sync modes, programmable baud rate - supports host communication and daisy-chain protocols |
| I/O Pins | 56 CMOS bidirectional I/O pins with pull-up control - configurable for peripheral multiplexing and direct actuator driving |
Pinout & Package
HD6473297FJ16V is housed in a 100-pin plastic quad flat package (PQFP) with 0.65 mm lead pitch, rated for −40°C to +85°C industrial operation. Pin functions include VCC/VSS pairs distributed for noise suppression, dedicated reset (RES), clock inputs (XIN/XOUT), and multiplexed port pins supporting timer, serial, and A/D functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RES | Active-low reset input | Asynchronous hardware reset; must be held low ≥1024 cycles after power stabilization |
| XIN / XOUT | Crystal oscillator connection | Supports 1–16 MHz crystal or external clock; internal oscillator circuit eliminates need for external components |
| PA0–PA7 | Port A I/O (multiplexed) | Configurable as general I/O or A/D input channels AD0–AD7 |
| PB0–PB7 | Port B I/O (multiplexed) | Supports UART TXD/RXD, timer I/O, and external interrupt inputs IRQ0–IRQ3 |
| PC0–PC7 | Port C I/O (multiplexed) | Provides 16-bit free-running timer channels (TIA0–TIB3), PWM outputs, and input capture inputs |
| VCC / VSS | Power supply terminals | Eight VCC/VSS pairs ensure stable core and I/O voltage distribution across high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| Mask-ROM firmware | 60 KB factory-programmed ROM eliminates boot loader requirement and prevents field firmware tampering |
| ZTAT™ option availability | Enables rapid prototyping and mid-volume production ramp with same pinout and code compatibility as mask-ROM version |
| Dual 8-bit timer subsystem | Independent clock sources and overflow interrupts allow concurrent timing tasks (e.g., PWM and watchdog supervision) |
| Input capture with timestamping | 16-bit free-running timer captures external event edges with 62.5 ns resolution at 16 MHz, critical for encoder position tracking |
| On-chip wait-state controller | Adjusts internal bus timing dynamically to match slower peripherals or external memory without CPU intervention |
Applications
| Industrial Motor Control | Factory Automation PLC Module |
|---|---|
|
Use Scenario: Closed-loop speed and position control of 3-phase brushless DC motors using Hall-effect sensors and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Primary controller executing real-time commutation logic, A/D sampling of current/voltage feedback, and precise PWM waveform generation. Use Value: Integrated 16-bit timer with input capture and dual 8-bit timers enables synchronized PWM and encoder pulse counting without external logic. |
Use Scenario: Compact, standalone I/O processing unit in modular PLC backplanes handling discrete input scanning and relay output sequencing. IC Role / Device Role / Timing Role: Standalone logic engine managing 32+ digital inputs/outputs, scan cycle timing, and serial diagnostics over RS-485. Use Value: 56 I/O pins with programmable pull-ups and interrupt-on-change reduce external glue logic; UART SCI supports Modbus RTU protocol natively. |
| Building HVAC Controller | Embedded Power Supply Monitor |
|
Use Scenario: Zone-level temperature and airflow regulation using thermistor networks, fan speed control, and damper actuation. IC Role / Device Role / Timing Role: Sensor fusion hub acquiring analog HVAC sensor data, computing PID control outputs, and driving triac-based AC loads. Use Value: 8-channel 10-bit A/D converter with 25 μs conversion time allows sub-second thermal loop updates; internal ROM hosts calibrated lookup tables. |
Use Scenario: Real-time monitoring of DC-DC converter output rails (±12 V, +5 V, +3.3 V) with fault logging and remote alert signaling. IC Role / Device Role / Timing Role: Dedicated supervisor IC performing periodic rail measurement, threshold comparison, and nonvolatile event flagging via I²C or UART. Use Value: On-chip 2 KB RAM stores last 100 fault timestamps and voltage samples; watchdog timer ensures recovery from latch-up events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3297FJ16V | Flash-based variant with identical pinout and peripheral set; supports in-system programming and firmware updates | Suitable for development, low-volume customization, or field-upgradable products where mask-ROM inflexibility is prohibitive | Select HD64F3297FJ16V when design requires post-production firmware revision or evaluation before committing to mask-ROM |
| R5F100PLGFB | Renesas RL78/G13-based MCU with 32 KB flash, 4 KB RAM, 10-bit A/D (8 ch), and lower active power (120 μA/MHz) | Better suited for battery-powered or energy-constrained applications; lacks ZTAT™ option and identical timer feature set | Choose R5F100PLGFB only if ultra-low power or flash flexibility outweighs need for H8/300 instruction compatibility and proven industrial reliability |
Compared with HD6473297FJ16V, HD64F3297FJ16V offers field-programmability at the cost of higher standby current and reduced write endurance, while R5F100PLGFB trades H8 ecosystem compatibility for modern low-power architecture and integrated debug interface - neither is pin-compatible nor drop-in replaceable.
Availability
HD6473297FJ16V is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLC modules, and building HVAC controllers requiring stable component supply across extended product lifecycles.
Supply support for HD6473297FJ16V 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
Hitachi Ltd. (now part of Renesas Electronics Corporation) was a Japanese multinational conglomerate pioneering semiconductor solutions for industrial and automotive markets from the 1970s onward.
The H8/3297 Series was designed specifically for deterministic real-time embedded control in harsh environments, emphasizing ROM-based security, peripheral integration, and long-term supply stability for factory equipment and infrastructure systems.
FAQ
What is the maximum operating frequency of the HD6473297FJ16V?
The HD6473297FJ16V supports a maximum system clock frequency of 16 MHz, achieved using an external crystal (1–16 MHz) connected to XIN/XOUT pins or an external clock source. Internal clock division and wait-state insertion ensure reliable operation across all peripheral modules at this rate.
Does the HD6473297FJ16V support in-circuit debugging?
The HD6473297FJ16V does not include on-chip debug circuitry such as JTAG or FINE interfaces. Debugging requires external emulators compatible with the H8/300H architecture, like the E8/E8a series, connected via dedicated debug pins (BKPT, TRST, etc.) defined in the hardware manual.
What is the purpose of the ZTAT™ option referenced for the HD6473297FJ16V?
ZTAT™ (Zero Turn-Around Time) is a Hitachi-specific fabrication option allowing rapid prototyping and low-to-mid volume production using one-time-programmable (OTP) ROM instead of mask-ROM. The HD6473297FJ16V ZTAT™ version maintains identical pinout, timing, and code compatibility with the mask-ROM variant.
Can the HD6473297FJ16V operate in single-chip mode without external memory?
Yes, the HD6473297FJ16V operates fully in single-chip mode using its internal 60 KB ROM and 2 KB RAM. External bus interface pins (e.g., A0–A19, D0–D15) are disabled by default and require explicit configuration of SYSCR and MDCR registers to enable expanded mode.
How many interrupt vectors does the HD6473297FJ16V support?
The HD6473297FJ16V supports 64 interrupt vectors, including reset, 16 external IRQ lines, and multiple internal peripheral interrupts (timer overflows, A/D completion, serial receive/transmit, etc.), each with individually maskable enable bits and fixed priority ordering.
HD6473297FJ16V 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:
HD6473297FJ16V FAQ
1.How can I place an order for HD6473297FJ16V through Aetrix?
Please submit a Request for Quotation (RFQ) for HD6473297FJ16V 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 HD6473297FJ16V reliable?
The price and inventory of HD6473297FJ16V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD6473297FJ16V is usually 5 days.
3.What payment methods are accepted for HD6473297FJ16V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD6473297FJ16V transactions.
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4.How is shipping managed for HD6473297FJ16V?
HD6473297FJ16V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD6473297FJ16V 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 HD6473297FJ16V?
For technical support, including HD6473297FJ16V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD6473297FJ16V requirements.
6.How does Aetrix verify that HD6473297FJ16V is sourced from the original manufacturer or authorized distributors?
All HD6473297FJ16V 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 HD6473297FJ16V meets industry standards.
7.What is the process for return or replacement of HD6473297FJ16V?
All HD6473297FJ16V units undergo pre-shipment inspection (PSI). If there is an issue with HD6473297FJ16V, 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 HD6473297FJ16V part is unused and in its original packaging.
Return procedure for HD6473297FJ16V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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