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Renesas HD6473837AV
- Part No.:
- HD6473837AV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
HD6473837AV.pdf
- Description:
- 8-BIT, H8/300L CPU, 5MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:108
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Product details
Overview
HD6473837AV from Renesas Technology Corp. 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 10-bit A/D converter. It operates at up to 16 MHz, includes 64 KB on-chip ROM and 4 KB RAM, and targets embedded systems requiring integrated display control and mixed-signal processing.
For engineers reviewing the HD6473837AV datasheet, HD6473837AV pinout, HD6473837AV application, or HD6473837AV equivalent, key selection criteria include LCD drive capability (up to 1/4 duty, 1/3 bias), low-power modes (Sleep, Standby, Watch), and compatibility with H8/300L instruction set for legacy code reuse.
Technical Context
The HD6473837AV implements the H8/300L CPU architecture with full backward compatibility to H8/300 instructions, supporting 16-bit data paths and 24-bit addressing. Its peripheral set integrates LCD segment/common drivers, five timer modules (including 16-bit free-run and input-capture), and dual serial interfaces - one UART and two CSI channels - enabling simultaneous communication with displays and sensors.
Power management includes six operational modes: Active (medium-speed), Subactive, Subsleep, Watch, Standby, and Sleep, with oscillator settling times specified for subclock (32.768 kHz) and main clock (1–16 MHz). The device supports PROM programming via dedicated socket adapter mode for mask-ROM variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300L 16-bit RISC, fully compatible with H8/300 instruction set for seamless migration. |
| Max Clock Frequency | 16 MHz main clock - enables real-time control loop execution within ≤62.5 ns instruction cycle. |
| On-chip Memory | 64 KB ROM + 4 KB RAM - sufficient for standalone LCD-based firmware without external memory. |
| LCD Controller | Supports 1/4-duty, 1/3-bias driving up to 160 segments - directly drives alphanumeric or segmented displays. |
| A/D Converter | 10-bit SAR ADC with 8 input channels - provides precision analog sensing for industrial monitoring. |
| Serial Interfaces | 1 × UART + 2 × CSI - allows concurrent host communication and peripheral daisy-chaining (e.g., sensors, EEPROM). |
| PWM Output | 14-bit resolution, 3-channel - delivers fine-grained motor speed or LED brightness control. |
Pinout & Package
HD6473837AV is housed in a 100-pin QFP (Plastic Quad Flat Package) with 0.5 mm pitch, designated as PQFP100. Pin functions are defined across 12 I/O ports (P1–P9, PA–PC), including dedicated LCD segment/common outputs, serial interface signals, reset, clock inputs, and power/ground terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual power domains: VCC1 (core logic), VCC2 (LCD driver) - enable independent voltage scaling for display efficiency. |
| CLK, EXTAL, XTAL | Main clock system inputs | Supports crystal (1–16 MHz) or external clock source - determines CPU and peripheral timing base. |
| SEG0–SEG31, COM0–COM3 | LCD segment/common drivers | Direct drive of up to 128 segments (32×4) - eliminates need for external LCD driver IC. |
| TXD0/RXD0 | UART channel 0 I/O | Full-duplex asynchronous communication at configurable baud rates - connects to host MCU or PC interface. |
| CSI0SCK/CSI0ST/CSI0SD | CSI channel 0 serial interface | Synchronous serial bus for daisy-chained peripherals - supports master/slave operation with programmable clock polarity. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD controller/driver | Eliminates external display driver IC and reduces BOM count by ≥3 components in portable instrumentation. |
| Multiple low-power modes | Standby mode draws ≤1.5 µA (subclock active) - extends battery life in handheld meters and remote sensors. |
| H8/300L instruction compatibility | Enables reuse of existing H8/300 firmware assets without recompilation or architectural porting effort. |
| On-chip 10-bit A/D converter | 8-channel sampling with internal reference - supports direct sensor interfacing (e.g., thermistor, potentiometer) without external signal conditioning. |
| Three serial interfaces | Simultaneous UART + dual CSI allows concurrent host telemetry and peripheral configuration - simplifies multi-device system architecture. |
Applications
| Industrial Panel Meters | Portable Medical Devices |
|---|---|
|
Use Scenario: Digital panel meter measuring voltage, current, or temperature with local LCD readout and serial data logging. IC Role / Device Role / Timing Role: Main system controller executing measurement algorithms, driving 4-digit segmented LCD, and transmitting readings via UART. Use Value: Integrated LCD driver and 10-bit ADC reduce component count and PCB area while maintaining ±0.1% measurement accuracy. |
Use Scenario: Battery-powered blood glucose monitor with LCD display, button interface, and USB/serial data export. IC Role / Device Role / Timing Role: Central controller managing electrochemical sensor signal acquisition, calibration, display update, and low-power sleep between measurements. Use Value: Subsleep mode (≤5 µA) and fast wake-up (<100 µs) enable long battery life without compromising responsiveness. |
| Home Appliance Control | Test & Measurement Equipment |
|
Use Scenario: Microwave oven or washing machine control board with LED/LCD status display and motor/timer control. IC Role / Device Role / Timing Role: Real-time sequencer generating 14-bit PWM for fan/motor speed control and scanning keypad inputs. Use Value: On-chip 14-bit PWM provides smooth, noise-free motor ramping - improves user experience and reduces EMI filtering requirements. |
Use Scenario: Benchtop multimeter or LCR meter with front-panel LCD, rotary encoder, and PC connectivity. IC Role / Device Role / Timing Role: System-on-chip handling analog front-end digitization, display rendering, and USB-to-UART bridge functionality. Use Value: Dual CSI interfaces support isolated communication with high-precision ADC and calibration EEPROM - ensures traceable measurement integrity. |
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 vs. mask ROM); supports in-system programming and field firmware updates. | Preferred for prototyping and production runs requiring post-deployment bug fixes or feature upgrades. | Select HD64F3837FV when design flexibility and firmware maintainability outweigh cost sensitivity. |
| HD6473834FV | Lower memory configuration: 32 KB ROM + 2 KB RAM; lacks LCD COM0–COM3 outputs and reduced segment count (SEG0–SEG15 only). | Suitable for simpler display interfaces (e.g., 2-line character LCD) or non-LCD applications where cost per unit is critical. | Choose HD6473834FV only if display requirements are limited to basic character output and memory footprint is constrained. |
Compared with HD6473837AV, HD64F3837FV offers field-programmable Flash but higher unit cost and slightly lower ESD immunity (±2 kV vs. ±4 kV), while HD6473834FV reduces display capability and memory to cut cost - making HD6473837AV optimal for full-featured LCD-based designs needing mask-ROM reliability.
Availability
HD6473837AV is available at Aetrix Electronics and suitable for industrial panel meters, portable medical devices, home appliance control, test equipment, and LCD-based embedded systems requiring stable component supply and long-term lifecycle support.
Supply support for HD6473837AV 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 automotive markets.
The H8/3834 Series - including HD6473837AV - was designed specifically for cost-sensitive, LCD-integrated embedded applications such as instrumentation, consumer appliances, and portable diagnostics equipment.
FAQ
What is the maximum operating frequency of the HD6473837AV?
The HD6473837AV supports a maximum main clock frequency of 16 MHz, delivering a 62.5 ns instruction cycle time. This frequency is achievable using either a crystal oscillator (1–16 MHz range) or an external clock source connected to the EXTAL pin. The device also incorporates a subclock generator for 32.768 kHz operation in low-power modes.
Does the HD6473837AV include on-chip flash memory or ROM?
The HD6473837AV contains 64 KB of on-chip mask-programmed ROM and 4 KB of RAM. It does not include flash memory; for field-upgradable firmware, engineers should consider the pin-compatible HD64F3837FV variant, which replaces ROM with 64 KB of flash memory while retaining identical peripheral functionality.
How many LCD segments can the HD6473837AV drive directly?
The HD6473837AV supports up to 1/4-duty, 1/3-bias LCD driving with 32 segment outputs (SEG0–SEG31) and 4 common outputs (COM0–COM3), enabling direct control of displays with up to 128 segments (32 × 4). This eliminates the need for external LCD driver ICs in applications like digital multimeters and thermostat displays.
What low-power modes are supported by the HD6473837AV?
The HD6473837AV implements six low-power modes: Sleep, Standby, Watch, Subsleep, Subactive, and Active (medium-speed). Standby mode draws ≤1.5 µA with subclock running, while Subsleep consumes ≤5 µA and retains RAM content - both enabling extended battery life in portable instrumentation and remote sensors.
Is the HD6473837AV pin-compatible with other H8/3834 Series devices?
Yes, the HD6473837AV shares the same 100-pin PQFP package and pinout with other members of the H8/3834 Series, including HD6473834 and HD64F3837FV. This allows hardware reuse across variants differing in memory type (ROM vs. Flash) or peripheral configuration, provided software accounts for functional differences such as LCD segment count or A/D channel availability.
HD6473837AV 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:
HD6473837AV FAQ
1.How can I place an order for HD6473837AV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD6473837AV 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 HD6473837AV reliable?
The price and inventory of HD6473837AV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD6473837AV is usually 5 days.
3.What payment methods are accepted for HD6473837AV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD6473837AV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD6473837AV?
HD6473837AV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD6473837AV 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 HD6473837AV?
For technical support, including HD6473837AV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD6473837AV requirements.
6.How does Aetrix verify that HD6473837AV is sourced from the original manufacturer or authorized distributors?
All HD6473837AV 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 HD6473837AV meets industry standards.
7.What is the process for return or replacement of HD6473837AV?
All HD6473837AV units undergo pre-shipment inspection (PSI). If there is an issue with HD6473837AV, 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 HD6473837AV part is unused and in its original packaging.
Return procedure for HD6473837AV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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