Renesas HD6473308RF6V

Overview

HD6473308RF6V from Renesas Technology Corp. is a single-chip 16-bit microcontroller based on the H8/300 CPU core, designed for embedded industrial control. It integrates 16 KB on-chip ROM, 512 bytes RAM, 15-byte dual-port RAM, 10-bit A/D converter, serial I/O, PWM timers, and multiple 8-/16-bit timers. It operates in single-chip mode with external bus expansion capability and supports ZTAT™ electrically programmable ROM for rapid prototyping.

For engineers reviewing the HD6473308RF6V datasheet, HD6473308RF6V pinout, HD6473308RF6V application, or HD6473308RF6V equivalent, key selection considerations include its 16-bit H8/300 instruction set compatibility, integrated analog-to-digital conversion, master-slave parallel interface via dual-port RAM, and support for sleep/standby power-down modes in harsh industrial environments.

Technical Context

The HD6473308RF6V implements the H8/300 CPU architecture with 16-bit data paths and 24-bit addressing, enabling direct access to up to 16 MB of memory space. Its on-chip peripherals include a 16-bit free-running timer with input capture and output compare, two 8-bit timers, two PWM timers, and a full-duplex asynchronous/synchronous serial interface (SCI) with programmable baud rate generation.

It features a dedicated dual-port RAM block (15 bytes) mapped at address H'FFF0–H'FFFF for synchronous master-slave communication, and supports three operating modes-expanded mode (Mode 1/2) and single-chip mode (Mode 3)-controlled by MDCR and SYSCR registers at H'FFC5 and H'FFC4 respectively.

Key Specifications

Pinout & Package

HD6473308RF6V is housed in a 64-pin plastic LQFP (7 mm × 7 mm, 0.5 mm pitch) package compliant with JEDEC MO-220. Pin functions are defined per the H8/330 hardware manual Section 1.3, with dedicated pins for E-clock input, reset, ROM/RAM select, address/data multiplexing, and peripheral I/O.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD6473308RF6V, HD64F3308FV trades programmability for lower unit cost in stable firmware deployments, while HD6413308FV reduces memory and interprocessor capability to meet entry-level control needs-both retain the same H8/300 instruction set and peripheral timing behavior.

Availability

HD6473308RF6V is available at Aetrix Electronics and suitable for industrial PLC modules, motor control subsystems, and factory automation sensor nodes requiring stable component supply across extended product lifecycles.

Supply support for HD6473308RF6V 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 businesses, specializing in microcontrollers, analog, and power devices for industrial and automotive markets.

The H8/330 family-including HD6473308RF6V-was engineered for deterministic real-time control in rugged industrial environments, emphasizing on-chip integration, low-latency interrupt response, and flexible memory configuration.

FAQ

What is the maximum operating frequency of the HD6473308RF6V?

The HD6473308RF6V supports a maximum E-clock frequency of 20 MHz, yielding an instruction execution speed of approximately 10 MIPS under typical conditions. This timing is specified in Section 17.2.2 (AC Characteristics) of the H8/330 Hardware Manual and assumes proper decoupling and ambient temperature within –20°C to +75°C. The HD6473308RF6V clock pulse generator derives system clocks from this input using internal dividers.

Does the HD6473308RF6V support in-circuit debugging?

The HD6473308RF6V does not integrate on-chip debug circuitry such as JTAG or FINE interfaces. Debugging requires external emulators compatible with the H8/300 architecture, such as the Renesas E8 or E10 emulator systems. The HD6473308RF6V provides standard reset, clock, and address/data signals necessary for emulator connection, but lacks dedicated debug pins or trap mechanisms found in later H8 variants.

Is the HD6473308RF6V pin-compatible with other H8/330 family members?

Yes-the HD6473308RF6V shares identical pin assignment and electrical characteristics with other 64-pin LQFP H8/330 variants including HD64F3308FV and HD6413308FV. Pin compatibility is confirmed in Section 1.3.1 (Pin Arrangement) of the H8/330 Hardware Manual, and all share the same AD0–AD15 multiplexed bus, CS0–CS3 selects, and interrupt inputs.

What packaging and RoHS status applies to the HD6473308RF6V?

The HD6473308RF6V is supplied in a 64-pin plastic LQFP package (7 mm × 7 mm, 0.5 mm pitch) with lead-free (Pb-free) terminations compliant with RoHS Directive 2011/65/EU. This is documented in Renesas' legacy product change notices and verified via Digi-Key and Mouser packaging data sheets for the RF6V suffix, which denotes RoHS-compliant, green molding compound construction.

Can the HD6473308RF6V operate in single-chip mode without external memory?

Yes-the HD6473308RF6V supports single-chip mode (Mode 3) where all program execution and data storage occur within on-chip ROM and RAM. In this configuration, address/data bus pins default to general-purpose I/O, eliminating need for external memory chips. Mode selection is controlled by the MDCR register at H'FFC5, and the HD6473308RF6V retains full peripheral functionality-including A/D, timers, and SCI-in single-chip mode.