Renesas HD6477034VF12

Overview

HD6477034VF12 from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH SH1-DSP CPU core, integrating on-chip PROM, interrupt controller, DMAC, ITU timers, SCI, A/D converter, and bus state controller. It operates at up to 12.5 MHz with 3.3 V supply and −40°C to +85°C industrial temperature range, targeting embedded control in instrumentation and industrial automation.

For engineers reviewing the HD6477034VF12 datasheet, HD6477034VF12 pinout, HD6477034VF12 application, or HD6477034VF12 equivalent, key selection criteria include its 112-pin QFP (PRQP0112JA-A) package, PROM-based boot capability, integrated 10-bit A/D converter, dual-channel SCI with multiprocessor mode, and programmable timing pattern controller for motor control synchronization.

Technical Context

The HD6477034VF12 implements the SH-1 instruction set with DSP extensions, supporting 16×16-bit signed/unsigned multiply operations and MAC accumulation. Its memory architecture includes on-chip ROM (PROM), RAM, and configurable external bus interface with DRAM refresh and wait-state control via the Bus State Controller (BSC).

Peripheral integration centers on real-time control: the 16-bit Integrated Timer Pulse Unit (ITU) supports PWM, complementary PWM, and reset-synchronized modes; the Programmable Timing Pattern Controller (TPC) enables non-overlap gate drive; and the Serial Communication Interface (SCI) provides asynchronous/synchronous and multiprocessor communication functions.

Key Specifications

Pinout & Package

HD6477034VF12 is housed in a 112-pin plastic QFP package (Renesas code PRQP0112JA-A), measuring 20 mm × 14 mm with 0.65 mm lead pitch. Pin functions are defined per operating mode (MCU/PROM) and include dedicated address/data bus lines, peripheral I/O, clock inputs, and power/ground terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD6477034VF12, HD6417034VF12 removes on-chip PROM but retains identical peripherals and timing - ideal for prototyping or secure boot architectures; HD6477034X20 trades industrial temperature range and 3.3 V compatibility for higher clock speed and extra I/O pins in a larger package.

Availability

HD6477034VF12 is available at Aetrix Electronics and suitable for industrial PLCs, motor drive controllers, programmable relays, and test equipment requiring stable component supply across extended product lifecycles.

Supply support for HD6477034VF12 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The SH7034 series - including HD6477034VF12 - was designed as a cost-optimized, single-chip solution for deterministic real-time control in resource-constrained industrial equipment.

FAQ

What is the maximum operating frequency of the HD6477034VF12?

The HD6477034VF12 operates at a maximum frequency of 12.5 MHz when supplied with 3.3 V and used within its specified −40°C to +85°C temperature range. This frequency is determined by the internal clock pulse generator and validated under DC and AC electrical characteristics in the official Renesas Hardware Manual Rev. 7.00. Exceeding this limit may cause timing violations or undefined behavior in the HD6477034VF12.

Does the HD6477034VF12 include on-chip program memory?

Yes, the HD6477034VF12 integrates 128 KB of on-chip PROM (programmable read-only memory), enabling self-contained firmware execution without external boot devices. This PROM is one-time programmable and forms the primary code storage for the HD6477034VF12 in MCU Mode, as confirmed in the SH7032/SH7034 Hardware Manual Section 1.2 and Table 1.2.

What peripheral interfaces are integrated into the HD6477034VF12?

The HD6477034VF12 integrates an interrupt controller (INTC), direct memory access controller (DMAC), 16-bit integrated timer pulse unit (ITU), programmable timing pattern controller (TPC), watchdog timer (WDT), two serial communication interfaces (SCI), a 10-bit 8-channel A/D converter, and a bus state controller (BSC). All are documented in the SH7032/SH7034 Hardware Manual Rev. 7.00, Sections 4–14.

What package type and pin count does the HD6477034VF12 use?

The HD6477034VF12 uses a 112-pin plastic quad flat package (QFP) with Renesas package code PRQP0112JA-A. Its dimensions are 20 mm × 14 mm with 0.65 mm lead pitch, and pin functions are fully detailed in Section 1.3 of the SH7032/SH7034 Hardware Manual Rev. 7.00.

Is the HD6477034VF12 suitable for automotive applications?

No, the HD6477034VF12 is rated for industrial temperature range (−40°C to +85°C) and classified as a "Standard" quality grade device per Renesas documentation. It is not qualified for automotive use, which requires "High Quality" grade parts with AEC-Q100 qualification, extended temperature ranges, and enhanced reliability testing - none of which apply to the HD6477034VF12.