Renesas HD64F7045F28V

Overview

HD64F7045F28V from Renesas Electronics is a 32-bit RISC microcontroller based on the SH-2 CPU core, featuring 256 kB on-chip flash memory, 32-bit external bus interface, and integrated peripherals including A/D converter (±4 LSB accuracy), serial communication interface (SCI), multifunction timer pulse unit (MTU), and DMA controller. It operates at 28 MHz with 5 V supply and targets industrial control and embedded real-time systems requiring deterministic execution and in-system programmability.

For engineers reviewing the HD64F7045F28V datasheet, HD64F7045F28V pinout, HD64F7045F28V application, or HD64F7045F28V equivalent, key selection criteria include flash memory size and reprogrammability, 32-bit bus width for high-throughput peripheral interfacing, ±4 LSB A/D accuracy for sensor signal conditioning, and compatibility with SH-2 instruction set toolchains and legacy SH7040-series development infrastructure.

Technical Context

The HD64F7045F28V implements the SuperH RISC engine SH-2 core with single-cycle instruction execution for most operations and a 32-bit internal bus architecture. It integrates on-chip flash memory supporting software erase/program via FLMCR registers and user-program mode transitions verified under strict timing constraints (e.g., 200 µs programming pulse, 5 ms erase wait).

Peripheral subsystems include a 16-channel interrupt controller, dual SCI modules with asynchronous/clock-synchronous modes, 8-channel 12-bit A/D converter with sample-and-hold, and four-channel DMA supporting memory-to-peripheral transfers. All I/O pins support configurable pull-up/down and Schmitt-trigger inputs on designated ports (PA2, PA5–PA9, PE0–PE15).

Key Specifications

Pinout & Package

HD64F7045F28V is housed in a QFP2020-144 package (20 mm × 20 mm, 0.5 mm pitch), with 144 leads arranged in quad flat pack configuration for surface-mount assembly and thermal dissipation in compact industrial enclosures.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD64F7045F28V, HD6437045F28 offers lower unit cost but no field reprogrammability, while HD64F7044F28 reduces pin count and bus width at the expense of peripheral throughput-making HD64F7045F28V optimal for applications demanding both flash flexibility and 32-bit data handling.

Availability

HD64F7045F28V is available at Aetrix Electronics and suitable for industrial automation, test equipment, motor control, and legacy system modernization requiring stable component supply and long-term lifecycle support.

Supply support for HD64F7045F28V 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 global semiconductor leader formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions for industrial and automotive markets.

The HD64F7045F28V belongs to the SH7040 Series - a family of 32-bit RISC microcontrollers designed for real-time embedded control applications where deterministic performance, integrated peripherals, and in-system programmability are essential.

FAQ

What is the maximum operating frequency of the HD64F7045F28V?

The HD64F7045F28V operates at a maximum CPU clock frequency of 28 MHz. This rating is specified under 5 V supply conditions and –20°C to +75°C ambient temperature. The SH-2 core achieves single-cycle execution for most instructions at this speed, enabling predictable real-time response in control applications. HD64F7045F28V timing diagrams confirm setup/hold margins are met at this frequency for all critical control signals including CK, RES, and bus strobes.

Does the HD64F7045F28V support in-system programming of its flash memory?

Yes, the HD64F7045F28V supports full in-system programming and erasure of its 256 kB on-chip flash memory. Programming requires entry into user program mode with precise timing sequences (e.g., 200 µs programming pulse, 5 ms erase wait) controlled via FLMCR registers. HD64F7045F28V documentation specifies that flash operations must occur while the CPU is not executing code from flash, and prohibits overlapping program/erase cycles.

What are the A/D converter specifications for the HD64F7045F28V?

The HD64F7045F28V integrates an 8-channel, 12-bit A/D converter with ±4 LSB integral nonlinearity error at 28 MHz operation and 5 V supply. It supports single-ended input configuration on AN0–AN7 pins, uses AVcc/AVss as reference, and includes sample-and-hold functionality. HD64F7045F28V electrical characteristics confirm this accuracy level applies across the full –20°C to +75°C temperature range without calibration.

Is the HD64F7045F28V pin-compatible with other SH7040-series microcontrollers?

HD64F7045F28V shares the QFP2020-144 package and pinout with other SH7045 variants (e.g., HD6437045F28) and SH7043A devices, but is not pin-compatible with 112-pin SH7040/SH7042/SH7044 derivatives. Pin correspondence tables in the HD64F7045F28V hardware manual confirm identical signal mapping for A0–A21, D0–D31, CK, RES, and peripheral I/O across 144-pin SH7045/SH7043A models.

What development tools are supported for the HD64F7045F28V?

The HD64F7045F28V is supported by Renesas' SH-1/SH-2/SH-DSP Programming Manual and legacy SH7040-series development environments, including C compilers, debuggers, and in-circuit emulators compatible with the SH-2 instruction set. HD64F7045F28V requires programmers certified for SH7040-series flash programming, such as the Renesas E8 emulator or third-party tools with SH-2 flash algorithm support.