My Inquiry
My Account
Renesas HD6473726HV
- Part No.:
- HD6473726HV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-BQFP
- Datasheet:
-
HD6473726HV.pdf
- Description:
- IC MCU 8BIT 48KB OTP 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:145
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HD6473726HV from Renesas Electronics is an 8-bit single-chip microcontroller in the H8/3724 Group, featuring an H8/300L CPU core, on-chip 14-bit PWM, dual serial interfaces (SCI), 8-channel 10-bit ADC, and high-voltage VFD driver pins for direct segment/anode control. It operates at up to 16 MHz with 64 KB ROM and 2 KB RAM, targeting embedded display control systems.
For engineers reviewing the HD6473726HV datasheet, HD6473726HV pinout, HD6473726HV application, or HD6473726HV equivalent, key selection criteria include VFD drive capability (up to 40 V), integrated analog-to-digital conversion, real-time interrupt response (< 1.5 µs), and compatibility with H8/300L instruction set for legacy code reuse.
Technical Context
The HD6473726HV implements the H8/300L CPU architecture with full instruction set compatibility to the H8/300, supporting 16-bit address space expansion and 24-bit linear addressing via bank switching. Its peripheral set includes five timers (one 16-bit free-run, two 8-bit I/O, one watchdog, one 16-bit input capture), a VFD controller with dedicated high-voltage output drivers (P70–P77, P60–P67), and dual asynchronous SCI modules with framing/error detection.
It integrates a 10-bit successive-approximation ADC with 8 input channels, sample-and-hold, and programmable conversion start triggers (software, timer, external). The chip supports three power modes - Active, Low-Voltage Wait, and Stop - with wake-up via external interrupt or internal timer event, enabling low-power display monitoring applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300L 8-bit RISC core, instruction-compatible with H8/300; enables migration of legacy firmware without re-architecting. |
| Max Clock Frequency | 16 MHz system clock; supports stable operation with external crystal or ceramic resonator up to 16 MHz. |
| ROM Size | 64 KB mask-programmed ROM; provides non-volatile program storage with no external memory interface required. |
| RAM Size | 2 KB on-chip RAM; sufficient for stack, variables, and display buffer in VFD-based control applications. |
| VFD Driver Pins | 16 high-voltage pins (P60–P67, P70–P77) rated to 40 V/10 mA; directly drive VFD segments and grids without external transistors. |
| ADC Resolution | 10-bit SAR ADC with 8 selectable input channels; supports analog sensor interfacing (e.g., temperature, brightness) in display systems. |
| Serial Interfaces | Two independent SCI modules (asynchronous only); enable host communication and daisy-chain display configuration. |
Pinout & Package
HD6473726HV is housed in a 100-pin plastic QFP (MQFP) package with 0.65 mm lead pitch, compliant with JEDEC MS-026. Pin functions are defined per the H8/3724 Group hardware manual Rev. 3.00 (1994).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | General-purpose TTL-level I/O with pull-up option; used for keypad scanning or status signaling. |
| P10–P17 | Port 1 bidirectional I/O | Configurable as input/output or alternate function (e.g., SCI TXD/RXD, timer I/O); supports peripheral multiplexing. |
| P60–P67 | VFD anode driver outputs | High-voltage open-drain outputs (40 V rating); sink current to drive VFD anodes directly. |
| P70–P77 | VFD segment driver outputs | High-voltage open-drain outputs (40 V rating); source current to drive VFD segments directly. |
| CLK, XIN, XOUT | System clock inputs/outputs | Supports external crystal (1–16 MHz) or ceramic resonator; internal oscillator circuitry eliminates need for external capacitors in basic config. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates boot sequence and clears CPU registers and peripheral states. |
Key Features
| Feature | Design Value |
|---|---|
| VFD Direct Drive Capability | Integrated 16 high-voltage outputs eliminate external driver ICs and reduce BOM count in vacuum fluorescent display systems. |
| On-Chip 14-Bit PWM | Generates precise dimming control signals for VFD brightness adjustment with resolution finer than 0.006% duty cycle step. |
| Dual SCI Interfaces | Enables simultaneous communication with host MCU and auxiliary peripherals (e.g., sensor hub or EEPROM) without software arbitration. |
| Hardware Watchdog Timer | Dedicated 16-bit free-running timer with windowed reset detection; prevents system lockup in unattended display applications. |
| Low-Power Stop Mode | Reduces current consumption to < 10 µA while retaining RAM content and enabling wake-up via external interrupt - ideal for battery-backed displays. |
Applications
| Industrial Panel Display | Appliance Control Console |
|---|---|
Use Scenario: Embedded controller in HVAC or PLC operator panels using vacuum fluorescent displays for status and parameter readout. IC Role / Device Role / Timing Role: Primary microcontroller managing VFD rendering, button input scanning, sensor data acquisition, and serial communication with main controller. Use Value: Integrated VFD drivers and 10-bit ADC reduce component count by ≥4 discrete parts versus generic MCUs, lowering PCB area and assembly cost. | Use Scenario: Front-panel controller in microwave ovens, washing machines, or coffee makers with multi-segment VFD for time, mode, and status indication. IC Role / Device Role / Timing Role: Standalone display and input manager handling real-time timer updates, keypad debounce, and brightness control via 14-bit PWM. Use Value: On-chip 16 MHz clock generation and high-voltage outputs allow direct VFD drive without level-shifting circuitry, simplifying safety certification. |
| Test Equipment Front Panel | Point-of-Sale Terminal Display |
Use Scenario: User interface controller in benchtop multimeters or signal generators requiring high-contrast, wide-temperature-range VFD readouts. IC Role / Device Role / Timing Role: Real-time display engine synchronizing ADC sampling, timer-based UI refresh, and serial command parsing from host instrument bus. Use Value: Sub-2 µs interrupt latency ensures responsive front-panel interaction even during continuous analog measurement cycles. | Use Scenario: Display subsystem in retail POS terminals where VFDs provide daylight-readable transaction status and pricing information. IC Role / Device Role / Timing Role: Dedicated display controller offloading rendering tasks from main application processor and managing local input events. Use Value: Dual SCI ports support concurrent connection to main CPU (via RS-232) and optional receipt printer or barcode scanner without UART bridging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VFD controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3726HV | Flash-memory version with same pinout and peripheral set; supports in-system programming and firmware updates. | Preferred for prototyping or field-upgradable products where mask ROM inflexibility is a constraint. | Select HD64F3726HV when firmware iteration or post-deployment updates are required; HD6473726HV remains optimal for high-volume, fixed-function production. |
| HD6473724HV | Same family, 48 KB ROM, no VFD high-voltage outputs on P6/P7; lacks direct VFD drive capability. | Suitable only for general-purpose control where external VFD drivers are acceptable. | Choose HD6473724HV only if VFD driving is handled externally and ROM size reduction is critical; HD6473726HV delivers full integration. |
Compared with HD64F3726HV and HD6473724HV, the HD6473726HV uniquely combines mask-ROM reliability, full VFD driver integration, and deterministic real-time performance - making it the most cost-effective and design-simple choice for high-volume, fixed-feature VFD display controllers.
Availability
HD6473726HV is available at Aetrix Electronics and suitable for industrial panel displays, appliance control consoles, test equipment front panels, and point-of-sale terminal displays requiring stable component supply and long-term obsolescence management.
Supply support for HD6473726HV 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 industrial, automotive, and infrastructure markets.
The HD6473726HV belongs to the legacy H8/3724 Group - a family designed specifically for embedded systems requiring integrated VFD control, real-time responsiveness, and high-voltage peripheral driving without external components.
FAQ
What is the maximum operating voltage for the VFD driver pins on the HD6473726HV?
The HD6473726HV features 16 dedicated high-voltage output pins (P60–P67 and P70–P77) rated for up to 40 V DC. These pins are designed to directly drive vacuum fluorescent display anodes and segments without external level-shifting components, supporting common industrial VFD configurations with cathode-grid-anode structures.
Does the HD6473726HV support in-system programming (ISP)?
No, the HD6473726HV uses mask-programmed ROM and does not support in-system programming. Firmware is fixed at manufacturing. For ISP capability, consider the flash-based alternative HD64F3726HV, which shares identical pinout and peripheral functionality but replaces mask ROM with 64 KB on-chip flash memory.
What clock sources are supported by the HD6473726HV?
The HD6473726HV supports external crystal or ceramic resonator connections on XIN/XOUT pins (1–16 MHz range), as well as external clock input on the CLK pin. Internal oscillator circuitry requires no external load capacitors in basic configurations, simplifying board layout for cost-sensitive VFD applications.
Is the HD6473726HV pin-compatible with other devices in the H8/3724 Group?
Yes, the HD6473726HV shares the same 100-pin MQFP package and pin assignment with other members of the H8/3724 Group, including HD6473724HV and HD64F3726HV. This allows hardware reuse across variants differing in ROM type (mask vs. flash) or peripheral enablement, provided firmware accounts for functional differences.
What is the ADC resolution and channel count on the HD6473726HV?
The HD6473726HV integrates an 8-channel, 10-bit successive-approximation analog-to-digital converter. It supports software- or timer-triggered conversions with sample-and-hold, enabling accurate sensing of analog inputs such as temperature, light intensity, or potentiometer position in VFD-based control systems.
HD6473726HV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-BQFP
- Series:
- H8® H8/300L
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8/300L
- Core Size:
- 8-Bit
- Speed:
- 5MHz
- Connectivity:
- SCI
- Peripherals:
- PWM, VFD
- Number of I/O:
- 60
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- OTP
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 4V ~ 5.5V
- Data Converters:
- A/D 8x8b
- Oscillator Type:
- External
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
HD6473726HV FAQ
1.How can I place an order for HD6473726HV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD6473726HV 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 HD6473726HV reliable?
The price and inventory of HD6473726HV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD6473726HV is usually 5 days.
3.What payment methods are accepted for HD6473726HV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD6473726HV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD6473726HV?
HD6473726HV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD6473726HV 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 HD6473726HV?
For technical support, including HD6473726HV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD6473726HV requirements.
6.How does Aetrix verify that HD6473726HV is sourced from the original manufacturer or authorized distributors?
All HD6473726HV 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 HD6473726HV meets industry standards.
7.What is the process for return or replacement of HD6473726HV?
All HD6473726HV units undergo pre-shipment inspection (PSI). If there is an issue with HD6473726HV, 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 HD6473726HV part is unused and in its original packaging.
Return procedure for HD6473726HV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HD6473726HV Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
