Renesas HD6417705BP100BV

Overview

HD6417705BP100BV from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH™ SH-3 core, featuring integrated USB 2.0 full-speed device controller, 16-bit timer pulse unit (TPU), DMA controller, SCIF serial interface, and A/D converter. It operates at 100 MHz with 3.3 V I/O and 1.5 V core supply, targeting embedded control in industrial instrumentation and communication gateways.

For engineers reviewing the HD6417705BP100BV datasheet, HD6417705BP100BV pinout, HD6417705BP100BV application, or HD6417705BP100BV equivalent, key selection criteria include its 208-pin LQFP package, USB device compliance, real-time interrupt handling via INTC with priority encoding, and SDRAM interface support in CS2/CS3 spaces.

Technical Context

The HD6417705BP100BV implements the SH-3 CPU core with 32-bit data path, 32-entry MMU, and 4 KB unified instruction/data cache. Its system architecture integrates a Clock Pulse Generator (CPG) with dual PLLs for independent bus and peripheral clock domains, and a Bus State Controller supporting asynchronous, wait-state, and SDRAM timing modes.

Peripheral integration includes a 16-channel DMAC with round-robin priority, four SCIF channels with FIFO, 12-bit ADC with 8 input channels, and USB device controller compliant with USB 2.0 full-speed (12 Mbps). The chip supports manual reset, watchdog timer with selectable division ratios (1/16 to 1/4096), and multiple power-saving modes including software standby and sleep.

Key Specifications

Pinout & Package

HD6417705BP100BV is housed in a 208-pin Low Profile Quad Flat Package (LQFP) with 0.5 mm pitch, 28 mm × 28 mm body size, and exposed thermal pad. Pin functions are configured dynamically via the Pin Function Controller (PFC), enabling multiplexing of I/O, peripheral signals, and boundary-scan test interfaces.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HD6417705BP100BV, the HD6417708BP125BV offers higher performance within identical footprint and software compatibility, while the R5F57705BDFB represents a generational shift with incompatible peripherals and tooling - making the former a true upgrade path and the latter a strategic re-architecture option.

Availability

HD6417705BP100BV is available at Aetrix Electronics and suitable for industrial data gateways, USB-enabled test instruments, and programmable logic controller I/O modules requiring stable component supply and long-lifecycle support.

Supply support for HD6417705BP100BV 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 SH7700 Series - including the HD6417705BP100BV - was designed for high-performance embedded control applications demanding real-time responsiveness, rich peripheral integration, and deterministic interrupt handling in resource-constrained environments.

FAQ

What is the maximum operating frequency of the HD6417705BP100BV?

The HD6417705BP100BV operates at a maximum CPU clock frequency of 100 MHz, derived from its internal dual-PLL clock generator. This frequency is sustained under specified conditions: VCC = 1.4–1.6 V, VCCQ = 3.0–3.6 V, and ambient temperature ≤ 75°C. The HD6417705BP100BV's SH-3 core delivers consistent timing behavior critical for hard real-time applications such as motor control and protocol processing.

Does the HD6417705BP100BV support external SDRAM, and if so, which address spaces are configurable?

Yes, the HD6417705BP100BV supports external SDRAM exclusively in CS2 and CS3 chip-select spaces, as defined by the CSnBCR registers. SDRAM must be assigned to CS3 if used in only one space; CS2 must then be configured as normal space. The HD6417705BP100BV includes dedicated SDRAM control registers (SDCR, SDCR2) and automatic refresh timing logic to manage bank activation and precharge cycles without CPU intervention.

What USB functionality does the HD6417705BP100BV provide, and what are the electrical interface requirements?

The HD6417705BP100BV integrates a USB 2.0 full-speed (12 Mbps) device controller compliant with the USB specification. It requires external 27 Ω series resistors on USB_DP and USB_DM lines and a 1.5 kΩ pull-up resistor on USB_DP to indicate full-speed device attachment. The HD6417705BP100BV handles all protocol layers - including token, handshake, and data packet sequencing - freeing the application firmware from low-level USB timing constraints.

How is the HD6417705BP100BV's interrupt system structured, and what is its worst-case latency?

The HD6417705BP100BV uses a centralized Interrupt Controller (INTC) with 64 vector entries, priority encoding, and support for IRQ0–IRQ5, PINT0–PINT15, and internal sources. Worst-case interrupt latency is less than 1 µs under typical conditions: pipeline flush, register save, and vector fetch. The HD6417705BP100BV's INTC guarantees deterministic response for time-critical I/O events such as encoder edge detection or safety shutdown triggers.

What power management modes does the HD6417705BP100BV support, and how do they affect peripheral operation?

The HD6417705BP100BV supports software standby, sleep, and manual reset modes. In software standby, the CPU and most peripherals halt while SDRAM retains data and the RTC continues counting; wake-up occurs via external interrupt or watchdog timeout. In sleep mode, both CPU and bus clocks stop, but selected modules (e.g., SCIF receive FIFO) may remain active. The HD6417705BP100BV's power states are controlled via the STBCR and SYSCR registers and require explicit configuration of clock gating and peripheral retention settings.