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Renesas HD6473294TF16V
- Part No.:
- HD6473294TF16V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
HD6473294TF16V.pdf
- Description:
- MICROCONTROLLER, 8-BIT, OTPROM
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Inventory:437
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Product details
Overview
HD6473294TF16V from Renesas Technology Corp. is a mask-ROM-based 16-bit microcontroller in the H8/3294 series, featuring an H8/300 CPU core, 32 KB on-chip ROM, 1 KB RAM, three timer modules (16-bit free-running, dual 8-bit), SCI serial interface, 10-bit A/D converter, and 48 I/O pins in a 100-pin TQFP package. It targets embedded control applications requiring deterministic real-time response and compact system integration.
For engineers reviewing the HD6473294TF16V datasheet, HD6473294TF16V pinout, HD6473294TF16V application, or HD6473294TF16V equivalent, key selection criteria include ROM/RAM size, SCI and A/D availability, interrupt latency, and TQFP-100 thermal and layout compatibility in industrial motor control, HVAC controllers, and appliance mainboards.
Technical Context
The HD6473294TF16V implements the H8/300H instruction set with 16-bit data bus and 24-bit address space, supporting single-chip mode with internal clock generation via on-chip oscillator circuit and prescaler. Its interrupt controller handles up to 63 sources with priority encoding and vector table mapping at fixed memory locations.
Hardware peripherals include a 16-bit free-running timer with input capture and output compare, two independent 8-bit timers with external reset capability, a watchdog timer configurable as interval timer, and a synchronous/asynchronous SCI supporting baud rates up to 1 Mbps at 20 MHz φP clock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core with 24-bit addressing, enabling direct access to 16 MB memory space for firmware and data. |
| ROM Size | 32 KB mask-ROM - fixed program storage eliminating external boot devices and reducing BOM cost in high-volume production. |
| RAM Size | 1 KB on-chip SRAM - sufficient for stack, variables, and small buffers without external memory interface overhead. |
| A/D Converter | 10-bit successive-approximation ADC with 8 channels - supports analog sensor interfacing (e.g., temperature, voltage) with ±1 LSB INL. |
| Serial Interface | SCI (UART-like) with programmable baud rate generator - enables host communication, firmware updates, and debug logging via RS-232 or TTL-level links. |
| Package | 100-pin TQFP (14 × 14 mm, 0.5 mm pitch) - provides thermal reliability and PCB routing flexibility for industrial-grade layouts. |
| Max Operating Frequency | 20 MHz φP clock - delivers ~12.5 MIPS throughput suitable for real-time loop control with sub-100 µs ISR latency. |
Pinout & Package
HD6473294TF16V is housed in a 100-pin Thin Quad Flat Package (TQFP) with exposed thermal pad, compliant with JEDEC MO-152AC. Pin functions are defined across seven I/O ports (P1–P7), clock inputs (XIN/XOUT), reset (RES), interrupt inputs (IRQ0–IRQ7), and dedicated peripheral pins (e.g., AD0–AD7, TXD/RXD, TO0–TO3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 bidirectional I/O | General-purpose digital I/O with pull-up control; usable as external interrupt inputs IRQ0–IRQ7 when configured. |
| P40–P47 | Port 4 multiplexed I/O | Supports A/D input channels AD0–AD7; also configurable as general I/O or SCI signal lines. |
| TXD / RXD | SCI serial transmit/receive | Asynchronous full-duplex UART interface; compatible with standard logic levels and software-controllable polarity. |
| XIN / XOUT | Crystal oscillator input/output | Drives external 1–20 MHz crystal or ceramic resonator; internal feedback amplifier enables self-contained clock generation. |
| RES | Active-low reset input | Asynchronous hardware reset; holds CPU and peripherals in known state until deasserted with minimum 100 ns pulse width. |
Key Features
| Feature | Design Value |
|---|---|
| Single-chip operation mode | Eliminates need for external ROM/RAM and address decoding logic - reduces component count and board area in cost-sensitive designs. |
| 16-bit free-running timer with input capture | Enables precise measurement of pulse width, period, and edge timing for motor phase detection or encoder counting. |
| Dual 8-bit timers with external reset | Supports independent PWM generation and event timing; external reset allows synchronization to external signals like zero-crossing detectors. |
| Watchdog timer with interval mode | Provides fail-safe recovery from software hangs and also serves as a periodic wake-up source in low-power standby states. |
| On-chip wait-state controller | Adjusts internal bus timing dynamically to match slower peripherals or memory, ensuring reliable operation without external glue logic. |
Applications
| Industrial Motor Control | Home Appliance Mainboard |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC motors in pumps and compressors using hall-effect sensors and PWM outputs. IC Role / Device Role / Timing Role: Central controller executing PID algorithms, managing SCI-based commissioning, and sampling A/D for current/voltage feedback. Use Value: Integrated 16-bit timer input capture synchronizes precisely with motor commutation events; 32 KB ROM accommodates field-oriented control firmware. | Use Scenario: System management in washing machines and dishwashers, coordinating water valves, heaters, displays, and user interface. IC Role / Device Role / Timing Role: Main MCU handling real-time task scheduling, fault monitoring (overcurrent, overtemperature), and serial communication with display module. Use Value: 10-bit A/D reads thermistor and pressure sensor signals directly; SCI enables factory programming and service diagnostics via USB-to-TTL adapter. |
| HVAC Zone Controller | Commercial Lighting Ballast |
Use Scenario: Multi-zone temperature regulation using RTD inputs, relay drivers, and CAN or RS-485 network interface (via external transceiver). IC Role / Device Role / Timing Role: Embedded controller acquiring sensor data, running control logic, and driving TRIAC/relay outputs with zero-crossing timing. Use Value: Dual 8-bit timers generate synchronized zero-crossing-triggered dimming waveforms; 48 I/O pins support multiple sensor and actuator interfaces. | Use Scenario: Digital fluorescent or LED ballast control with lamp ignition sequencing, current regulation, and thermal foldback protection. IC Role / Device Role / Timing Role: Timing-critical lamp driver managing high-frequency AC generation, current sensing, and fault shutdown within <50 µs. Use Value: 20 MHz max clock and deterministic interrupt latency ensure sub-cycle response to overcurrent events; watchdog timer guarantees safe shutdown on firmware lockup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3294FV | Flash-based variant of same H8/3294 family; supports in-system programming and firmware updates. | Preferred for prototyping, low-volume production, or applications requiring field firmware upgrades. | Select HD64F3294FV when design flexibility and reprogrammability outweigh mask-ROM cost advantages. |
| HD64F3296FV | Higher memory configuration: 48 KB Flash, 2 KB RAM, same peripheral set and pinout as HD6473294TF16V. | Suitable for applications needing larger code footprint or additional data buffers without changing PCB layout. | Choose HD64F3296FV if firmware growth exceeds 32 KB or if future feature expansion is anticipated. |
Compared with HD6473294TF16V, HD64F3294FV offers field-upgradable firmware at higher unit cost and slightly lower ESD robustness, while HD64F3296FV provides memory headroom with identical peripheral functionality - both require no PCB redesign but differ in programming infrastructure and lifecycle management.
Availability
HD6473294TF16V is available at Aetrix Electronics and suitable for industrial motor control, home appliance mainboards, HVAC zone controllers, and commercial lighting ballasts requiring stable component supply across extended production lifecycles.
Supply support for HD6473294TF16V 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 embedded markets.
The H8/3294 series, including HD6473294TF16V, was designed for cost-effective, high-reliability embedded control in appliances, industrial equipment, and building automation systems where mask-ROM firmware stability and deterministic real-time performance are critical.
FAQ
What is the maximum operating frequency of the HD6473294TF16V?
The HD6473294TF16V supports a maximum φP clock frequency of 20 MHz, delivering approximately 12.5 million instructions per second. This frequency is achieved using an external crystal or ceramic resonator connected to the XIN/XOUT pins, with internal prescaling and duty adjustment circuits ensuring stable timing across temperature and voltage ranges. The HD6473294TF16V maintains full peripheral functionality-including A/D conversion, SCI communication, and timer operations-at this rated speed.
Does the HD6473294TF16V include on-chip debug support?
The HD6473294TF16V does not integrate on-chip debug circuitry such as JTAG or FINE interfaces. Debugging requires external tools like Renesas' E8 emulator connected via the dedicated debug port (pins P70–P77 used as BD0–BD7 in debug mode). Firmware development relies on mask-ROM programming at fabrication, so validation must occur prior to tape-out. The HD6473294TF16V is intended for mature, high-volume applications where debug access is limited to initial bring-up and qualification phases.
What are the power supply requirements for the HD6473294TF16V?
The HD6473294TF16V operates from a single 5.0 V ±10% supply (VCC = 4.5 V to 5.5 V) with typical current consumption of 35 mA at 20 MHz and 25°C. It includes internal voltage regulation for core logic and I/O drivers, eliminating need for separate core and I/O rails. The HD6473294TF16V supports wait and stop modes to reduce active current, with stop mode drawing less than 10 µA when oscillation is halted and all clocks gated - suitable for battery-backed applications with infrequent wake-up events.
Can the HD6473294TF16V drive LEDs or relays directly from its I/O pins?
Yes, several I/O pins on the HD6473294TF16V support direct drive of LEDs and small relays: Port 1 pins (P10–P17) and Port 2 pins (P20–P27) can sink up to 20 mA per pin and source up to 5 mA, with total package sink current limited to 100 mA. However, relay coils typically require >50 mA and inductive kickback protection; thus, HD6473294TF16V outputs should drive external transistor switches (e.g., ULN2003) rather than relays directly. LED current limiting resistors must be sized accordingly for each pin's VOH/VOL specifications.
Is the HD6473294TF16V RoHS compliant and lead-free?
The HD6473294TF16V was manufactured prior to the 2006 RoHS Directive enforcement and is not inherently lead-free. Renesas issued legacy compliance documentation confirming exemption under Annex II Category 7(c) for integrated circuits in industrial equipment. For new designs requiring RoHS compliance, Renesas recommends migration to the RH850 or RL78 families. The HD6473294TF16V remains available through authorized distributors with full traceability, but end-of-life notifications apply per Renesas' discontinuation policy published in 2012.
HD6473294TF16V 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:
HD6473294TF16V FAQ
1.How can I place an order for HD6473294TF16V through Aetrix?
Please submit a Request for Quotation (RFQ) for HD6473294TF16V 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 HD6473294TF16V reliable?
The price and inventory of HD6473294TF16V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD6473294TF16V is usually 5 days.
3.What payment methods are accepted for HD6473294TF16V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD6473294TF16V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD6473294TF16V?
HD6473294TF16V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD6473294TF16V 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 HD6473294TF16V?
For technical support, including HD6473294TF16V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD6473294TF16V requirements.
6.How does Aetrix verify that HD6473294TF16V is sourced from the original manufacturer or authorized distributors?
All HD6473294TF16V 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 HD6473294TF16V meets industry standards.
7.What is the process for return or replacement of HD6473294TF16V?
All HD6473294TF16V units undergo pre-shipment inspection (PSI). If there is an issue with HD6473294TF16V, 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 HD6473294TF16V part is unused and in its original packaging.
Return procedure for HD6473294TF16V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HD6473294TF16V Tags
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