Renesas HD6417014F28

Overview

HD6417014F28 from Renesas Electronics is a ROMless 32-bit RISC microcontroller in the SH7014 series, featuring a SuperH™ CPU core, 3 kB on-chip RAM, 1 kB instruction cache, dual serial communication interfaces (SCI), 8-channel 10-bit A/D converter, and multifunction timer/pulse unit with PWM and phase counting modes. It operates at up to 28 MHz and targets real-time embedded control applications requiring deterministic response and external memory expansion.

For engineers reviewing the HD6417014F28 datasheet, HD6417014F28 pinout, HD6417014F28 application, or HD6417014F28 equivalent, key selection considerations include its ROMless architecture requiring external program memory, F-ZTAT™-compatible boot configuration, 112-pin FP package with multiplexed address/data bus, and support for DRAM interfacing via dedicated RAS/CAS/WRH/WRL controls.

Technical Context

The HD6417014F28 implements the SH-1 CPU core with single-cycle RISC execution, 32-bit internal bus width, and on-chip bus state controller enabling external memory access with programmable wait states. Its interrupt controller supports 64 sources including NMI, IRQ0–IRQ7, and peripheral-triggered exceptions with priority registers IPRA–IPRH.

Peripheral integration includes two independent SCI modules supporting asynchronous communication, a DMA controller with two channels and DREQ/DACK handshake, and a multifunction timer unit (MTU) with three 16-bit timers offering input capture, output compare, PWM mode 1/2, and four-phase counting modes - all synchronized via shared clock sources TCLKA–TCLKD.

Key Specifications

Pinout & Package

HD6417014F28 is housed in a 112-pin Fine Pitch (FP) plastic QFP package (16 mm × 16 mm, 0.5 mm pitch), compatible with standard surface-mount assembly processes and thermal management for industrial ambient temperatures.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD6417014F28, HD64F7017F28 trades external memory flexibility for integrated flash storage and eliminates DRAM control logic, while HD6437016F28 replaces boot flexibility with mask-programmed ROM - making HD6417014F28 the only choice for prototyping, firmware iteration, or systems requiring external memory expansion.

Availability

HD6417014F28 is available at Aetrix Electronics and suitable for industrial motor control, factory automation I/O modules, medical diagnostic equipment interfaces, and test & measurement signal generators requiring stable component supply across extended product lifecycles.

Supply support for HD6417014F28 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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The SH7014 series, including HD6417014F28, was designed for cost-sensitive, high-performance real-time embedded control applications requiring external memory expansion and rich peripheral integration without on-chip nonvolatile storage.

FAQ

What is the maximum operating frequency of the HD6417014F28?

The HD6417014F28 operates at a maximum frequency of 28 MHz, determined by its internal PLL and external crystal oscillator circuitry. This clock speed enables deterministic real-time execution of control loops and peripheral handling. The HD6417014F28 achieves this performance using the SH-1 RISC core with single-cycle instruction execution and 32-bit internal bus architecture. System stability at this frequency requires adherence to specified power supply decoupling and PCB layout guidelines outlined in the hardware manual.

Does the HD6417014F28 include on-chip program memory?

No, the HD6417014F28 is a ROMless microcontroller and does not contain on-chip program memory. It relies entirely on external memory devices such as Flash, EPROM, or SRAM connected via its 16-bit data bus and 18-bit address bus. The HD6417014F28 supports F-ZTAT™ boot configuration using mode pins MD0–MD3 to select external memory mapping. This architecture allows firmware updates without mask changes and accommodates varying memory size requirements across product generations.

How many serial communication interfaces does the HD6417014F28 support?

The HD6417014F28 integrates two independent Serial Communication Interface (SCI) modules, each supporting full-duplex asynchronous communication with programmable baud rate generators. These SCIs are accessible via dedicated pins PA0/PA1 (SCI0) and PA3/PA4 (SCI1), and support standard UART protocols including RS-232 and RS-485 with appropriate level-shifting circuitry. The HD6417014F28's dual SCI capability enables simultaneous host communication and fieldbus connectivity without resource contention.

What type of A/D converter is integrated into the HD6417014F28?

The HD6417014F28 includes an 8-channel, 10-bit successive approximation register (SAR) analog-to-digital converter with built-in sample-and-hold circuitry. It supports conversion times as fast as 1.25 µs and provides dedicated analog input pins PF0–PF7. The HD6417014F28's A/D converter features programmable trigger sources including software start, timer match, and external event, enabling synchronized sampling in motor control and sensor monitoring applications.

Is the HD6417014F28 pin-compatible with other SH7014-series microcontrollers?

Yes, the HD6417014F28 shares identical pinout and package (112-pin FP) with other members of the SH7014 family, including HD6417014RF28. This allows direct substitution in designs where external memory interface and ROMless operation are required. The HD6417014F28 maintains full electrical and functional compatibility across reset behavior, peripheral register maps, and interrupt vector assignments - simplifying design reuse and migration within the SH7014 platform.