Renesas HD6473614DV

Overview

HD6473614DV from Renesas Electronics is an H8/300L-based 16-bit single-chip microcontroller with 128 KB mask ROM, 4 KB RAM, 14-bit PWM, dual SCI interfaces, and 8-channel 10-bit A/D converter. It operates at up to 20 MHz CPU clock and supports five low-power modes including Sleep, Standby, and Watch modes. It targets embedded control in industrial sensors and motor drive subsystems.

For engineers reviewing the HD6473614DV datasheet, HD6473614DV pinout, HD6473614DV application, or HD6473614DV equivalent, key selection criteria include on-chip memory size, A/D resolution and channel count, SCI interface count, PWM bit depth, and supported low-power states for battery-operated systems.

Technical Context

The HD6473614DV implements the H8/300L CPU core with 16-bit data bus, 24-bit address space (16 MB), and 16 general-purpose registers. It integrates system-level peripherals including SYSCR1/SYSCR2 for mode control, multiple timer modules (A–E), and dedicated clock generators for main and subclock domains.

Peripheral integration includes Port 0–9 and Port A with configurable I/O direction, pull-up MOS, and interrupt capability per pin; dual serial communication interfaces (SCI1 and SCI2) supporting asynchronous full-duplex operation; and a 14-bit PWM unit with independent U/L registers and prescaler support for precise motor timing control.

Key Specifications

Pinout & Package

HD6473614DV is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined across 10 I/O ports (P0–P9, PA), power/ground, clock inputs (XIN/XOUT, EXTAL/XTAL), reset (RES), and dedicated peripheral pins (e.g., TXD1/RXD1, PWM0–PWM3).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with HD6473614DV, HD64F3614FV trades mask-ROM immutability for field-programmability, while HD6433614FV reduces both memory and peripheral capability to meet tighter cost targets - neither offers pin-to-pin compatibility, requiring board redesign for substitution.

Availability

HD6473614DV is available at Aetrix Electronics and suitable for industrial sensor nodes, brushless DC motor controllers, and programmable logic relays requiring stable component supply and long-term lifecycle support.

Supply support for HD6473614DV 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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The H8/3614 Series, including HD6473614DV, was designed for cost-effective, low-power embedded control in factory automation, motor drives, and building management systems.

FAQ

What is the maximum operating frequency of the HD6473614DV?

The HD6473614DV supports a maximum CPU clock frequency of 20 MHz, derived from its internal clock generator circuitry and validated under specified DC and AC electrical characteristics. This frequency defines the upper limit for instruction execution rate and real-time peripheral timing accuracy. The HD6473614DV achieves deterministic timing behavior at this rate across all supported operating voltages (4.5 V to 5.5 V) and ambient temperatures (−20 °C to +75 °C).

Does the HD6473614DV include on-chip debug support?

No, the HD6473614DV does not integrate on-chip debug circuitry such as JTAG or FINE interfaces. Debugging requires external emulation tools compatible with the H8/300L architecture, typically using a dedicated emulator pod connected via the on-chip ICE connector pins. The HD6473614DV relies on external hardware for breakpoint setting, register inspection, and memory access during development - unlike flash-based variants like HD64F3614FV which may support in-circuit programming.

What are the power supply requirements for the HD6473614DV?

The HD6473614DV operates from a single 5 V ±10% supply (4.5 V to 5.5 V) applied to VCC and VSS pins. It does not support split or dual-supply operation. All I/O pins are 5 V-tolerant, and internal regulators generate required core voltages. The HD6473614DV specifies typical active-mode current consumption of 35 mA at 20 MHz and 5 V, dropping to <1 µA in Standby mode with RTC active - confirming strict adherence to industrial-grade power integrity requirements.

How many A/D input channels does the HD6473614DV support?

The HD6473614DV integrates an 8-channel, 10-bit successive-approximation A/D converter with selectable reference voltage sources (AVREF/AVSS or internal bandgap). Channels map directly to Port 0 pins P00–P07, enabling simultaneous analog sensing across multiple sensors without multiplexer hardware. The HD6473614DV supports software- and hardware-triggered conversions, including timer-triggered auto-scan mode for continuous multi-channel acquisition with minimal CPU intervention.

Is the HD6473614DV pin-compatible with other H8/3614 family members?

No, the HD6473614DV is not pin-compatible with other H8/3614 family members such as HD6433614FV or HD64F3614FV. While all share the same 100-pin LQFP package outline, pin assignments for peripheral functions (e.g., SCI2 signals, PWM outputs, A/D references) differ across variants. The HD6473614DV uses unique pin mappings defined in Section 1.3.2 of its hardware manual, and substitution requires PCB layout revision - even though mechanical footprint remains identical.