Renesas HD64F7144FW50V

Overview

HD64F7144FW50V from Renesas Electronics is a 32-bit RISC microcontroller in the SH7144 Group, featuring a SuperH™ CPU core, 256 KB on-chip Flash memory, 16 KB RAM, and integrated peripherals including timers, serial interfaces (SCI), and DMA controllers. It operates at up to 50 MHz and targets embedded control applications requiring deterministic real-time response, such as industrial motor drives and HVAC controllers.

For engineers reviewing the HD64F7144FW50V datasheet, HD64F7144FW50V pinout, HD64F7144FW50V application, or HD64F7144FW50V equivalent, key selection considerations include its 112-pin PQFP package, 3.3 V single-supply operation, Flash-based field-programmability, and support for single-chip mode with external bus interface disabled.

Technical Context

The HD64F7144FW50V implements the SH-1 instruction set architecture with a five-stage pipeline, supporting both big-endian and little-endian data access. Its system control includes a clock pulse generator with PLL, power-down modes (sleep/standby), and on-chip reset circuitry with power-on reset and manual reset inputs.

Peripheral integration includes three 16-bit timer units (each with capture/compare/PWM capability), two asynchronous serial communication interfaces (SCI), a watchdog timer, and an 8-channel DMA controller with scatter-gather support - all accessible via dedicated register sets mapped into the unified memory address space.

Key Specifications

Pinout & Package

HD64F7144FW50V is housed in a 112-pin PQFP (Plastic Quad Flat Package) with 0.65 mm lead pitch and 20 mm × 20 mm body size. Pin assignments follow the SH7144 Group standard layout defined in Renesas Hardware Manual REJ09B0108-0400.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit RISC microcontroller applications.

Compared with HD64F7144FW50V, HD64F7145FW50V offers CAN and expanded I/O at the cost of larger package and higher pin count, while HD64F7144FW40V trades 10 MHz clock headroom for lower power and cost - both require PCB redesign due to non-identical pinouts.

Availability

HD64F7144FW50V is available at Aetrix Electronics and suitable for industrial motor control, building automation, factory HMI terminals, and test & measurement equipment requiring stable component supply and long-term obsolescence management.

Supply support for HD64F7144FW50V 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 SH7144 Series was designed as a cost-optimized 32-bit RISC MCU family targeting high-volume embedded control applications where Flash programmability, real-time determinism, and peripheral integration outweigh the need for advanced connectivity like Ethernet or USB.

FAQ

What is the maximum operating frequency of the HD64F7144FW50V?

The HD64F7144FW50V is rated for a maximum operating frequency of 50 MHz, achieved via its on-chip PLL clock pulse generator when driven by an external crystal or clock source in the 1–20 MHz range. This frequency applies under specified 3.3 V supply and −20 °C to +75 °C ambient conditions per Renesas Hardware Manual REJ09B0108-0400. The HD64F7144FW50V must not be operated beyond this limit without derating per thermal constraints.

Does the HD64F7144FW50V include on-chip Flash memory, and what is its capacity?

Yes, the HD64F7144FW50V integrates 256 KB of on-chip Flash memory configured as program memory. This Flash is electrically erasable and reprogrammable in-system (ISP), supporting firmware updates without removing the HD64F7144FW50V from the target board. The memory is organized with sector erase capability and supports read-while-write operation in certain configurations as documented in the SH7144 Group Hardware Manual.

What package type and pin count does the HD64F7144FW50V use?

The HD64F7144FW50V uses a 112-pin plastic quad flat package (PQFP) with 0.65 mm lead pitch and 20 mm × 20 mm body dimensions. This package matches the SH7144 Group's standard pinout layout and is distinct from the 144-pin variant used by the HD64F7145FW50V. The HD64F7144FW50V's pin assignment includes dedicated power/ground pairs, multiplexed address/data bus lines, and peripheral-specific signals such as SCI and timer I/O.

Is the HD64F7144FW50V pin-compatible with other members of the SH7144 Group?

No, the HD64F7144FW50V is not pin-compatible with masked ROM or ROM-less variants (e.g., HD6437144 or HD6417144) despite sharing the same 112-pin PQFP package - differences in internal memory configuration affect boot behavior and some pin functions. It is also not pin-compatible with the 144-pin SH7145 Group (e.g., HD64F7145FW50V). Pin compatibility is limited to identical part numbers; HD64F7144FW50V requires its own validated layout.

What development tools are officially supported for the HD64F7144FW50V?

Renesas officially supports the HD64F7144FW50V with the High-performance Embedded Workshop IDE, C/C++ Compiler for SuperH (REJ10B0047), and Simulator/Debugger for Windows (ADE-702-283). These tools provide full register-aware debugging, Flash programming, and real-time trace capabilities. The HD64F7144FW50V is also compatible with third-party JTAG debug probes that implement the Renesas SH-1 debug interface specification.