Renesas D6417709SF100B

Overview

D6417709SF100B from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH™ SH-3 CPU core, featuring an integrated MMU, cache memory, real-time clock (RTC), three serial interfaces (SCI/SCIF), timer units, interrupt controller, and bus state controller - operating at up to 100 MHz with 1.7–2.0 V core supply voltage. It targets embedded control applications requiring deterministic real-time response and low-power operation in industrial HMI and networked edge devices.

For engineers reviewing the D6417709SF100B datasheet, D6417709SF100B pinout, D6417709SF100B application, or D6417709SF100B equivalent, key selection criteria include its SH-3 instruction set compatibility, 208-pin FP package with configurable I/O, on-chip memory management for OS support, and dual-voltage power domains (VCC = 1.7–2.0 V, VCCQ = 3.3 V) enabling mixed-signal interface integration.

Technical Context

The D6417709SF100B implements the SH-3E CPU architecture with 8 KB unified instruction/data cache, four-stage pipeline, and hardware multiply/divide unit. It supports little-endian and big-endian memory access modes, with programmable bus timing for synchronous DRAM, PCMCIA, and peripheral memory mapping across eight chip-select areas.

Its system-level features include a programmable frequency control register (FRQCR) for dynamic clock ratio adjustment (Iφ:Bφ = 1:1 to 4:1), module standby control for RTC and peripheral clocks, and UDI debug interface compliant with IEEE 1149.1 JTAG. The device uses separate power domains for core (VCC), I/O (VCCQ), RTC (VCC–RTC), and PLL (VCC–PLL1/PLL2) to optimize noise isolation and power sequencing.

Key Specifications

Pinout & Package

Package: 208-pin FP (Fine Pitch) plastic QFP, 28 × 28 mm body, 0.5 mm lead pitch, exposed thermal pad (pin 208 = VSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with D6417709SF100B, the SH7750R offers higher compute throughput but lacks MMU-based OS support and requires significant PCB and firmware rework, while the SH7264 trades MMU and cache size for CAN integration and automotive qualification - making D6417709SF100B optimal for general-purpose embedded Linux or μITRON systems needing memory protection and mixed-voltage I/O.

Availability

D6417709SF100B is available at Aetrix Electronics and suitable for industrial HMI, network edge gateways, medical diagnostic instruments, and automated test equipment requiring stable component supply across multi-year production cycles.

Supply support for D6417709SF100B 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 headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.

The SH7709S Group belongs to Renesas' SuperH™ RISC engine family and was designed specifically for high-performance, low-power embedded applications requiring real-time OS support, rich peripheral integration, and flexible memory management - targeting industrial control, medical instrumentation, and communications infrastructure.

FAQ

What is the maximum operating frequency of the D6417709SF100B?

The D6417709SF100B operates at a maximum CPU clock frequency of 100 MHz, achieved via internal PLL multiplication of the external CKIO input (up to 33.34 MHz). This frequency is sustained under specified conditions: VCC = 1.7–2.0 V, ambient temperature ≤ 85°C, and proper decoupling. The device's FRQCR register allows dynamic adjustment of the internal Iφ:Bφ clock ratio, supporting performance scaling without changing the external crystal.

Does the D6417709SF100B include a memory management unit (MMU)?

Yes, the D6417709SF100B integrates a full-featured MMU with a 64-entry translation lookaside buffer (TLB), enabling virtual memory addressing and multitasking OS support such as μITRON or Linux. This MMU supports both page-based and segment-based memory protection, allowing secure partitioning of application code, OS kernel, and peripheral drivers - a critical capability for safety-critical and certified embedded systems.

What power supply voltages does the D6417709SF100B require?

The D6417709SF100B requires three distinct supply voltages: VCC (1.7–2.0 V) for the core logic, VCCQ (3.3 V) for I/O buffers, and VCC–RTC (1.7–2.0 V) for the real-time clock domain. These domains must be powered in sequence - VCC first, then VCCQ, then VCC–RTC - with appropriate decoupling capacitors per Renesas Hardware Manual Rev.5.00. Failure to observe this sequencing may result in undefined pin states or initialization failure.

Can the D6417709SF100B operate in low-power sleep mode?

Yes, the D6417709SF100B supports multiple low-power modes including sleep mode, where CPU execution halts but selected peripherals remain active. In sleep mode with only RTC and refresh cycles enabled, typical current consumption is ≤30 mA (Icc) and ≤20 mA (IccQ) at VCC = 1.9 V and Bφ = 33 MHz. Module standby control allows individual clock gating for TMU, SCI, and RTC - enabling fine-grained power optimization without full system reset.

Is the D6417709SF100B pin-compatible with other SH7700-series microcontrollers?

No, the D6417709SF100B is not pin-compatible with other SH7700-series variants such as SH7705 or SH7727 due to differences in pin assignment, power domain allocation (e.g., VCC–PLL2 placement), and peripheral signal routing. While sharing the same SH-3E core architecture and register-level compatibility, its 208-pin FP package and specific pin functions (e.g., CSn mapping, UDI interface location) are unique to the SH7709S Group - requiring dedicated PCB layout and schematic design.