Renesas D73032VX8V

Overview

D73032VX8V from Renesas Electronics (formerly Hitachi) is a 16-bit single-chip microcontroller based on the H8/300H CPU core, featuring 128 KB on-chip ROM, 8 KB RAM, a 16-bit integrated timer unit (ITU), programmable timing pattern controller (TPC), watchdog timer (WDT), serial communication interface (SCI), and 10-bit A/D converter. It operates at up to 20 MHz and supports three operating modes - single-chip, expanded, and minimum - for embedded control in industrial motor drives and power supply management.

For engineers reviewing the D73032VX8V datasheet, D73032VX8V pinout, D73032VX8V application, or D73032VX8V equivalent, key selection criteria include its 100-pin QFP package, 1 Mbyte address space limit, dual-channel PWM generation via ITU, non-overlapping output capability via TPC, and SCI support for asynchronous serial communication in real-time control systems.

Technical Context

The D73032VX8V implements the H8/300H 32-bit internal architecture with sixteen 16-bit general-purpose registers and a linear address space capped at 1 Mbyte (not 16 Mbyte). Its on-chip peripherals include an ITU supporting complementary PWM and phase counting modes, and a TPC enabling precise, non-overlapping timing pattern generation for gate drive control.

CPU exception handling includes reset, interrupts, and traps with vectorized response; interrupt priority is managed via IPRA/IPRB registers, and bus timing is configurable through ASTCR, WCR, and WCER registers to interface with external memory or peripherals without wait-state penalties.

Key Specifications

Pinout & Package

Package: 100-pin plastic quad flat pack (QFP), 14 mm × 14 mm, 0.5 mm pitch, surface-mount.

Key Features

Applications

Equivalent & Alternatives

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

Compared with D73032VX8V, the H8/3048F offers CAN and more memory for networked control, while the H8/3052B adds USB and 12-bit A/D at higher clock speed - neither is pin-compatible, and both require PCB layout changes and firmware adaptation.

Availability

D73032VX8V is available at Aetrix Electronics and suitable for industrial motor control, switch-mode power supply design, and factory automation I/O modules requiring stable component supply across long-lifecycle production programs.

Supply support for D73032VX8V 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, formed from the merger of NEC Electronics and Renesas Technology, is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial and automotive markets.

The H8/3032 Series was designed as a cost-optimized, high-reliability MCU family for real-time embedded control in power electronics and motion systems where deterministic timing and peripheral integration are critical.

FAQ

What is the maximum operating frequency of the D73032VX8V?

The D73032VX8V operates at a maximum clock frequency of 20 MHz. This rating is specified under standard industrial temperature range (−40°C to +85°C) and 5 V supply conditions. The CPU core achieves one instruction per clock cycle for most operations, enabling predictable real-time performance in motor control loops and power supply regulation tasks executed by the D73032VX8V.

Does the D73032VX8V support CAN bus communication?

No, the D73032VX8V does not include a CAN controller or physical layer interface. Its serial communication interface (SCI) supports only asynchronous UART-style communication. For CAN-based applications, engineers should consider the pin-incompatible H8/3048F, which integrates a full CAN 2.0B module - a feature absent in the D73032VX8V's peripheral set.

What package type is used for the D73032VX8V?

The D73032VX8V is housed in a 100-pin plastic quad flat pack (QFP) with 0.5 mm lead pitch and 14 mm × 14 mm body dimensions. This surface-mount package supports automated assembly and provides adequate thermal dissipation for continuous operation at full clock speed. The pin layout is documented in Section 1.3.1 of the H8/3032 Series Hardware Manual for the D73032VX8V.

How much on-chip memory does the D73032VX8V provide?

The D73032VX8V integrates 128 KB of on-chip ROM for program storage and 8 KB of on-chip RAM for data and stack operations. These memory resources are mapped into the 1 Mbyte linear address space and do not require external memory chips for typical embedded control applications, reducing bill-of-materials cost and board area for designs based on the D73032VX8V.

Can the D73032VX8V generate complementary PWM waveforms?

Yes, the D73032VX8V's 16-bit Integrated Timer Unit (ITU) supports complementary PWM mode with programmable dead time. This capability allows simultaneous, phase-shifted high-side and low-side gate drive signals - essential for preventing shoot-through in half-bridge and 3-phase inverter topologies controlled by the D73032VX8V.