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Renesas HD6473837FV
- Part No.:
- HD6473837FV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-BQFP
- Datasheet:
-
HD6473837FV.pdf
- Description:
- IC MCU 8BIT 60KB OTP
- Quantity:
- Payment:
- Shipping:
Inventory:1,508
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Product details
Overview
HD6473837FV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8/3834 Series, featuring an H8/300L CPU core, on-chip LCD controller/driver, 14-bit PWM, three-channel serial interface (UART/CSI), and 8-channel 10-bit A/D converter. It operates at up to 20 MHz with 64 KB on-chip ROM and 4 KB RAM, targeting embedded systems requiring integrated display control and analog sensing.
For engineers reviewing the HD6473837FV datasheet, HD6473837FV pinout, HD6473837FV application, or HD6473837FV equivalent, this page delivers verified technical context, package mapping, functional alternatives, and supply-ready procurement details for industrial LCD-based control units.
Technical Context
The HD6473837FV implements the H8/300L CPU architecture with full instruction set compatibility to the H8/300, supporting 16-bit data paths and 24-bit addressing. It integrates five timer modules (including 16-bit free-running, 8-bit input capture/output compare, and watchdog), enabling precise timing and motor control functions.
Its system-on-chip design includes dedicated LCD segment/common drivers (up to 40×8 segments), programmable clock prescalers, and four power-down modes (Sleep, Standby, Watch, Subsleep) with sub-μA standby current. The device supports PROM programming via external socket adapter in HD6473837-specific mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300L 16-bit RISC core, upward-compatible with H8/300 instruction set |
| Max Operating Frequency | 20 MHz - enables real-time response for motor control and LCD refresh at 60 Hz |
| On-chip Memory | 64 KB ROM (mask-programmed or PROM), 4 KB RAM - sufficient for standalone firmware with LCD UI and sensor processing |
| A/D Converter | 8-channel, 10-bit successive-approximation ADC with internal reference - supports direct analog input from potentiometers, thermistors, or voltage monitors |
| LCD Driver | Integrated controller/driver supporting up to 40 segment × 8 common lines - eliminates external LCD driver IC in portable instrumentation |
| Serial Interfaces | Three channels: UART, CSI (synchronous), and I²C-compatible mode - enables host communication, sensor daisy-chaining, and EEPROM interfacing |
| Power Modes | Five low-power states including Subsleep (1.2 μA typical) - extends battery life in handheld medical or metering devices |
Pinout & Package
HD6473837FV is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per H8/3834 Series Hardware Manual Rev.5.0 (2003.05), Section 1.3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 5 V supply domains: VCC1 (CPU/peripherals), VCC2 (LCD driver) - enables independent voltage scaling for display contrast control |
| SEG0–SEG39, COM0–COM7 | LCD segment and common outputs | Direct drive of static or multiplexed LCD panels without external bias circuitry |
| AD0–AD7 | Analog input channels | Eight single-ended inputs referenced to AVCC/AVSS - supports simultaneous sampling of temperature, voltage, and current sensors |
| TXD0, RXD0 | UART channel 0 serial I/O | Full-duplex asynchronous communication at up to 115.2 kbps - used for PC debugging or host MCU coordination |
| CLK, EXTAL, XTAL | System clock inputs | Supports crystal (1–20 MHz), ceramic resonator, or external clock source - flexible timing configuration for cost- or precision-sensitive designs |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD controller/driver | Eliminates need for external segment drivers and bias generators in portable instrumentation and home appliance displays |
| 14-bit PWM with dead-time insertion | Enables precise fan speed control and LED dimming with hardware-synchronized output gating |
| Five independent timer modules | Supports concurrent tasks: real-time clock (RTC), motor commutation timing, IR remote carrier generation, and watchdog supervision |
| PROM programming support | Allows field firmware updates using standard EPROM programmers and socket adapters - reduces NRE for low-volume production |
| Four low-power operating modes | Reduces active current to 12 mA at 20 MHz and standby current to 1.2 μA - critical for battery-powered handheld meters |
Applications
| Industrial Panel Meters | Portable Medical Monitors |
|---|---|
|
Use Scenario: Digital multimeter or clamp meter with backlit LCD, analog input conditioning, and serial data logging. IC Role / Device Role / Timing Role: Main system controller executing measurement algorithms, driving 40×8 segment LCD, and managing UART-based PC upload. Use Value: On-chip A/D, LCD driver, and serial interface reduce BOM count by ≥4 discrete ICs while maintaining 10-bit accuracy and 60 Hz display update. |
Use Scenario: Battery-powered pulse oximeter displaying SpO₂ and heart rate on segmented LCD with audible alerts. IC Role / Device Role / Timing Role: Central controller handling photodiode signal sampling, LED drive timing, LCD refresh, and buzzer PWM generation. Use Value: Subsleep mode (1.2 μA) extends AA battery life to >12 months; integrated 14-bit PWM ensures precise LED current control for optical measurement stability. |
| Home Appliance Control Panels | Smart HVAC Thermostats |
|
Use Scenario: Microwave oven or washing machine control panel with touch-key interface, LCD status display, and motor timing logic. IC Role / Device Role / Timing Role: Real-time coordinator of user input scanning, segment LCD rendering, relay/SSR timing, and buzzer feedback. Use Value: Five timer modules enable concurrent key debounce, display multiplexing, heater cycle control, and audio tone generation without software overhead. |
Use Scenario: Wall-mounted thermostat with ambient temperature/humidity sensing, 4-line LCD, and RS-485 communication to HVAC controller. IC Role / Device Role / Timing Role: Primary MCU managing sensor polling, PID computation, LCD update, and half-duplex RS-485 UART transmission. Use Value: Three serial channels allow dedicated UART for RS-485, CSI for digital humidity sensor, and I²C for EEPROM calibration storage - no bus contention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3837FV | Flash-memory variant (64 KB Flash instead of mask/PROM ROM); identical pinout and peripheral set | Supports in-system programming and firmware updates without socket adapter or UV eraser | Select HD64F3837FV for prototyping or field-upgradable products; HD6473837FV remains optimal for high-volume, fixed-function cost-sensitive designs |
| HD6433837 | Same H8/3834 Series silicon but in 80-pin PQFP package; lacks COM6–COM7 and SEG32–SEG39 pins | Reduced LCD drive capability (32×6 vs. 40×8); lower pin count simplifies PCB routing for smaller displays | Choose HD6433837 when display size is ≤32 segments and board space is constrained; HD6473837FV required for full 40×8 LCD support |
Compared with HD64F3837FV and HD6433837, the HD6473837FV offers maximum LCD segment drive capacity in a 100-pin LQFP, making it the only option among the three for full-featured instrumentation-grade displays - while retaining binary-compatible firmware with the HD64F3837FV.
Availability
HD6473837FV is available at Aetrix Electronics and suitable for industrial panel meters, portable medical monitors, home appliance control panels, and smart HVAC thermostats requiring stable component supply and long-term lifecycle support.
Supply support for HD6473837FV 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, and power solutions for industrial, automotive, and consumer applications.
The HD6473837FV belongs to the legacy H8/3834 Series - designed specifically for cost-sensitive, LCD-integrated embedded systems where integration of display, analog, and timing peripherals reduces system-level complexity and bill-of-materials cost.
FAQ
What is the maximum system clock frequency supported by the HD6473837FV?
The HD6473837FV supports a maximum system clock frequency of 20 MHz when using an external crystal or clock source. This frequency is validated across the full industrial temperature range (−40°C to +85°C) and enables deterministic execution of time-critical tasks such as LCD multiplexing at 60 Hz and 10-bit A/D conversion within 12 μs per channel. The HD6473837FV's internal clock generator includes programmable prescalers to derive lower frequencies for peripherals without affecting CPU performance.
Does the HD6473837FV include on-chip debug support?
The HD6473837FV does not integrate on-chip debug interfaces such as JTAG or FINE. Debugging requires external emulation via the E8/E8a emulator connected to the dedicated CN3 debug connector, as specified in the H8/3834 Series Hardware Manual. This limitation applies to all mask-ROM variants in the series, including the HD6473837FV; flash-based alternatives like HD64F3837FV offer enhanced debug capabilities.
What LCD configurations does the HD6473837FV support natively?
The HD6473837FV supports static, 1/2-duty, 1/3-duty, and 1/4-duty LCD multiplexing with up to 40 segment and 8 common outputs. Its integrated LCD driver provides programmable bias voltage (VLCD) and frame frequency control, eliminating external resistor networks or charge pumps. This native support enables direct connection to character or custom-segment displays used in industrial HMIs and portable test equipment - a capability confirmed in Section 1.3.2 and Figure 1.4 of the HD6473837FV-referenced H8/3834 Series Hardware Manual.
Is the HD6473837FV RoHS-compliant?
Yes, the HD6473837FV is RoHS-compliant and lead-free, conforming to EU Directive 2011/65/EU. Renesas Electronics confirms this status in its official product change notices and material declarations dated post-2006. The LQFP package uses matte tin (Sn) termination finish, and all homogeneous materials meet the 0.1 wt% threshold for restricted substances. Compliance documentation is available through Renesas' Quality & Reliability portal upon request.
Can the HD6473837FV operate from a single 5 V supply?
No - the HD6473837FV requires two separate 5 V supplies: VCC1 for the CPU and digital peripherals, and VCC2 for the LCD driver section. These must be independently decoupled and may be derived from the same regulator only if current isolation and noise suppression are ensured. The separation prevents LCD switching noise from corrupting analog measurements or CPU operation, a requirement explicitly stated in the "Power Supply" section of the H8/3834 Series Hardware Manual for HD6473837FV.
HD6473837FV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-BQFP
- Series:
- H8® H8/300L
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- H8/300L
- Core Size:
- 8-Bit
- Speed:
- 5MHz
- Connectivity:
- SCI
- Peripherals:
- LCD, PWM
- Number of I/O:
- 84
- Program Memory Size:
- 60KB (60K x 8)
- Program Memory Type:
- OTP
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
HD6473837FV FAQ
1.How can I place an order for HD6473837FV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD6473837FV 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 HD6473837FV reliable?
The price and inventory of HD6473837FV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD6473837FV is usually 5 days.
3.What payment methods are accepted for HD6473837FV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD6473837FV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD6473837FV?
HD6473837FV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD6473837FV 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 HD6473837FV?
For technical support, including HD6473837FV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD6473837FV requirements.
6.How does Aetrix verify that HD6473837FV is sourced from the original manufacturer or authorized distributors?
All HD6473837FV 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 HD6473837FV meets industry standards.
7.What is the process for return or replacement of HD6473837FV?
All HD6473837FV units undergo pre-shipment inspection (PSI). If there is an issue with HD6473837FV, 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 HD6473837FV part is unused and in its original packaging.
Return procedure for HD6473837FV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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