Renesas HD6473278FJ10
- Part No.:
- HD6473278FJ10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
HD6473278FJ10.pdf
- Description:
- MICROCONTROLLER,16-BIT, OTPROM
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Inventory:2,112
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Product details
Overview
HD6473278FJ10 from Hitachi is a single-chip microcontroller in the H8/327 series, featuring an H8/300 CPU core, 16 KB on-chip masked ROM, 512-byte RAM, one 16-bit free-running timer, two 8-bit timers, an 8-channel 10-bit A/D converter, and a serial communication interface (SCI) - all in a 64-pin QFP package for embedded control applications such as motor drive and industrial sensor interfaces.
For engineers reviewing the HD6473278FJ10 datasheet, HD6473278FJ10 pinout, HD6473278FJ10 application, or HD6473278FJ10 equivalent, key selection criteria include ROM size, A/D resolution and channel count, timer architecture, SCI protocol support, and power-down mode capability in resource-constrained real-time systems.
Technical Context
The HD6473278FJ10 implements the H8/300 CPU core with 16-bit general-purpose registers and bit-manipulation instructions optimized for deterministic control loops. It supports three MCU operating modes - two expanded modes and single-chip mode - selected via external pins and controlled by MDCR and SYSCR registers at fixed addresses H'FFC5 and H'FFC4.
Its peripheral set includes a 16-bit free-running timer with input capture and output compare, dual 8-bit timers with external reset capability, an 8-channel 10-bit successive-approximation A/D converter with scan/single conversion modes, and an asynchronous/clocked synchronous SCI with programmable baud rate via BRR register at H'FFD9.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300 16-bit RISC-like core with 10 MHz max clock and 0.2 µs add/subtract execution |
| ROM Size | 16 KB masked ROM - fixed firmware storage without field programming requirement |
| RAM Size | 512 bytes on-chip RAM - sufficient for stack, variables, and small buffers in real-time control |
| A/D Converter | 10-bit resolution, 8 input channels, internal reference - enables direct analog sensing of voltage, temperature, or position signals |
| Timers | One 16-bit free-running timer + two 8-bit timers - supports PWM generation, input capture for encoder counting, and time-based event scheduling |
| Serial Interface | SCI supporting asynchronous and clocked synchronous modes - interoperable with RS-232, RS-485, and custom serial protocols |
| Power Modes | Software/hardware standby and sleep modes - reduces current to µA range during idle periods for battery-sensitive designs |
Pinout & Package
HD6473278FJ10 is housed in a 64-pin plastic quad flat package (QFP) with 0.5 mm lead pitch, compliant with JEDEC MS-026 standard. Pin functions are defined per Section 1.3 of OMC942723054, including dedicated ports (P1–P7), timer I/O (TO0–TO2, TI0–TI3), SCI signals (TXD/RXD), A/D inputs (AN0–AN7), and system control pins (RESET, CLK, MODE).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 bidirectional I/O | General-purpose digital I/O with pull-up option; used for status LEDs, button inputs, or relay control |
| AN0–AN7 | A/D input channels | Eight analog inputs accepting 0–VREF range; mapped to P60–P67 in analog mode |
| TO0, TO1, TO2 | Timer output pins | Output compare waveforms for PWM motor control or pulse generation |
| TI0–TI3 | Timer input capture pins | Edge-triggered inputs for measuring pulse width or frequency (e.g., encoder quadrature signals) |
| RXD, TXD | SCI serial data I/O | Asynchronous full-duplex UART interface compatible with TTL-level logic |
| RESET | Active-low reset input | Hardware reset assertion resets CPU, peripherals, and registers to known state |
Key Features
| Feature | Design Value |
|---|---|
| Bit-manipulation instruction set | Direct bit-test, set, clear, and toggle operations - essential for efficient I/O and flag handling in real-time firmware |
| 16-bit free-running timer with input capture | Four independent capture registers (ICRA–ICRD) - enables precise measurement of external signal timing events |
| Scan-mode A/D conversion | Automatic sequential sampling across all 8 channels - simplifies multi-sensor monitoring without software polling overhead |
| ZTAT™-compatible ROM option | Masked ROM variant ensures production stability while enabling fast firmware revision cycles via ZTAT versions in same family |
| Three low-power operating modes | Sleep, software standby, and hardware standby - each with distinct wake-up sources and recovery latency for energy-aware design |
Applications
| Motor Control System | Industrial Sensor Node |
|---|---|
Use Scenario: Closed-loop DC brushless motor control with Hall-effect feedback and current sensing. IC Role / Device Role / Timing Role: HD6473278FJ10 executes commutation logic, reads Hall sensors via P1/P2, samples current via AN0–AN2, and generates PWM via TO0–TO2. Use Value: Integrated 16-bit timer and 10-bit A/D enable precise timing and analog acquisition without external components, reducing BOM cost and board space. | Use Scenario: Remote environmental monitoring node with temperature, humidity, and pressure sensors. IC Role / Device Role / Timing Role: HD6473278FJ10 performs periodic A/D sampling of analog sensor outputs, stores calibrated values in RAM, and transmits data via SCI to gateway. Use Value: On-chip 512-byte RAM and scan-mode A/D allow autonomous multi-channel acquisition and buffering between transmissions, extending battery life. |
| Programmable Logic Controller (PLC) I/O Module | Home Appliance Control Board |
Use Scenario: DIN-rail mounted I/O expansion module with digital input filtering and relay output timing. IC Role / Device Role / Timing Role: HD6473278FJ10 monitors 8 isolated digital inputs using P3/P4, debounces in firmware, and drives 4 relays via P5 with configurable on/off delay using 8-bit timers. Use Value: Dual 8-bit timers provide independent timing for each relay channel, eliminating need for external timing ICs or FPGA resources. | Use Scenario: Washing machine main control board managing water valve, pump, heater, and display. IC Role / Device Role / Timing Role: HD6473278FJ10 sequences wash cycles, reads thermistor via AN3, controls triac drivers via P6 outputs, and communicates with front-panel display via SCI. Use Value: Single-chip integration of A/D, timers, and SCI eliminates discrete interface components, improving reliability and easing EMC compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3278FJ10 | ZTAT™ version with field-programmable ROM; identical pinout and peripheral set | Used where firmware updates or rapid prototyping are required before mask ROM finalization | Select HD64F3278FJ10 for development and early production; HD6473278FJ10 for volume cost-optimized deployment |
| HD6413278FJ10 | ROMless version - no on-chip ROM; requires external program memory and boot loader | Applicable when flexible firmware loading (e.g., over SCI or CAN) or secure update mechanisms are mandatory | Choose HD6413278FJ10 only if external memory infrastructure and boot management are already in place |
Compared with HD64F3278FJ10 and HD6413278FJ10, the HD6473278FJ10 provides lowest BOM cost and highest security for fixed-function embedded control, trading field programmability and boot flexibility for production stability and reduced external component count.
Availability
HD6473278FJ10 is available at Aetrix Electronics and suitable for motor control systems, industrial sensor nodes, PLC I/O modules, and home appliance control boards requiring stable component supply and long-term lifecycle support.
Supply support for HD6473278FJ10 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) is a Japanese semiconductor pioneer known for high-reliability microcontrollers and industrial-grade ICs.
The H8/327 series was designed specifically for cost-sensitive, real-time embedded control applications demanding integrated A/D, deterministic timing, and low-power operation - targeting industrial automation, white goods, and motor-driven equipment.
FAQ
What is the maximum operating frequency of the HD6473278FJ10?
The HD6473278FJ10 supports a maximum system clock frequency of 10 MHz, as specified in Section 14.2.2 (AC Characteristics) of the Hardware Manual OMC942723054. This clock rate enables instruction execution times as fast as 0.2 µs for add/subtract operations and 1.4 µs for multiply/divide, making HD6473278FJ10 suitable for time-critical control loops in motor and sensor applications.
Does the HD6473278FJ10 include an on-chip A/D converter, and what are its specifications?
Yes, the HD6473278FJ10 integrates an 8-channel, 10-bit successive-approximation A/D converter with internal reference. It supports both single-conversion and scan modes, with conversion time of 32 µs per channel in scan mode. Input channels map to port pins P60–P67, and results are stored in ADDR registers at H'FFE0–H'FFE6 - confirmed in Section 9 of the Hardware Manual.
What power-saving modes does the HD6473278FJ10 support, and how are they entered?
The HD6473278FJ10 supports Sleep Mode, Software Standby Mode, and Hardware Standby Mode. Sleep Mode halts the CPU while preserving RAM and register contents; Software Standby disables the system clock but retains RAM; Hardware Standby cuts most internal clocks and reduces current to ~10 µA. Entry is controlled via SYSCR and MDCR registers (H'FFC4/H'FFC5), as detailed in Section 12 of the Hardware Manual.
Is the HD6473278FJ10 pin-compatible with other devices in the H8/327 series?
Yes, all H8/327-series variants - including HD6473278FJ10 (masked ROM), HD64F3278FJ10 (ZTAT™), and HD6413278FJ10 (ROMless) - share identical 64-pin QFP packaging and pin assignments. Section 1.3.1 of the Hardware Manual confirms uniform pin arrangement across the series, enabling PCB reuse across firmware variants.
What type of serial interface does the HD6473278FJ10 provide, and what protocols does it support?
The HD6473278FJ10 features a Serial Communication Interface (SCI) supporting both asynchronous (UART-like) and clocked synchronous modes. It includes programmable baud rate via BRR register (H'FFD9), full-duplex operation, and framing control via SMR and SCR registers. The SCI does not implement CAN, LIN, or USB - it is a general-purpose byte-oriented serial peripheral, as described in Section 8 of the Hardware Manual.
HD6473278FJ10 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:
HD6473278FJ10 FAQ
1.How can I place an order for HD6473278FJ10 through Aetrix?
Please submit a Request for Quotation (RFQ) for HD6473278FJ10 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of HD6473278FJ10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD6473278FJ10 is usually 5 days.
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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 HD6473278FJ10?
For technical support, including HD6473278FJ10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD6473278FJ10 requirements.
6.How does Aetrix verify that HD6473278FJ10 is sourced from the original manufacturer or authorized distributors?
All HD6473278FJ10 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 HD6473278FJ10 meets industry standards.
7.What is the process for return or replacement of HD6473278FJ10?
All HD6473278FJ10 units undergo pre-shipment inspection (PSI). If there is an issue with HD6473278FJ10, 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 HD6473278FJ10 part is unused and in its original packaging.
Return procedure for HD6473278FJ10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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