Renesas D6417709SBP167BV

Overview

D6417709SBP167BV from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH™ SH-3 CPU core, featuring an integrated MMU, cache memory, RTC, three serial interfaces (SCI), timer units, interrupt controller, and bus state controller. It operates at up to 167 MHz with 1.7–2.0 V core supply and supports little/big-endian memory access for embedded control applications requiring real-time responsiveness and memory management.

For engineers reviewing the D6417709SBP167BV datasheet, D6417709SBP167BV pinout, D6417709SBP167BV application, or D6417709SBP167BV equivalent, key selection criteria include its SH-3 instruction set compatibility, 208-pin FP package with defined NC pin handling, synchronous DRAM interface support, and module-level standby control for RTC/SCI/TMU peripherals.

Technical Context

The D6417709SBP167BV implements the SH-3 CPU architecture with 8 KB unified instruction/data cache, memory management unit (MMU) supporting virtual memory, and configurable bus interface supporting burst ROM, PCMCIA, and synchronous DRAM. Its clock system includes FRQCR-controlled Iφ/Bφ ratio adjustment and WDT-triggered frequency switching.

Peripheral integration includes three independent serial communication interfaces (SCI) with DMA-triggerable TXI/RXI interrupts, real-time clock with calendar function, four-channel TMU with input capture/output compare, and UBC for hardware breakpoint debugging. All modules are memory-mapped and accessible via 32-bit data bus with little- or big-endian configuration.

Key Specifications

Pinout & Package

The D6417709SBP167BV is housed in a 208-pin Fine-Pitch Plastic QFP (FP-208C/FP-208E) package with 0.5 mm lead pitch and 28 × 28 mm body size. NC pins must remain unconnected per design specification; unused input pins require fixed high/low biasing to prevent noise-induced pass-through current.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SH7727 and SH7750, the D6417709SBP167BV uniquely balances MMU-enabled OS support, synchronous DRAM interfacing, and low-voltage operation-making it optimal for Linux-capable industrial controllers where memory scalability and power efficiency are critical.

Availability

D6417709SBP167BV is available at Aetrix Electronics and suitable for industrial HMI controllers, medical diagnostic terminals, network edge gateways, automated test equipment, and portable instrumentation requiring stable component supply across extended production lifecycles.

Supply support for D6417709SBP167BV 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 SH7709S Group-including D6417709SBP167BV-is designed for high-performance embedded control applications requiring real-time responsiveness, memory management, and low-power operation in industrial and medical equipment.

FAQ

What is the maximum operating frequency of the D6417709SBP167BV?

The D6417709SBP167BV operates at a maximum internal clock frequency (Iφ) of 167 MHz. This is achieved using an external CKIO clock up to 33.34 MHz fed into the on-chip PLLs. The FRQCR register configures the multiplication ratio and Iφ/Bφ division ratio, with valid combinations documented in Table 9.4 of the Hardware Manual Rev. 5.00. The D6417709SBP167BV's timing specifications assume proper decoupling and thermal management per the absolute maximum ratings.

Does the D6417709SBP167BV support memory management for operating systems like Linux?

Yes, the D6417709SBP167BV integrates a full memory management unit (MMU) compliant with the SH-3 architecture, enabling virtual memory support required by Linux and other protected-mode operating systems. The MMU supports page-based translation with configurable page sizes and access protection bits. This capability is explicitly documented in Section 5.2 "Memory Management Unit (MMU)" of the SH7709S Hardware Manual, making the D6417709SBP167BV suitable for embedded Linux deployments where task isolation and memory protection are essential.

Can the D6417709SBP167BV interface directly with synchronous DRAM?

Yes, the D6417709SBP167BV includes a dedicated synchronous DRAM interface supporting both bank active and auto-precharge modes. Configuration is controlled via the MCR register's RASD bit and MCS[0]–MCS[7] pin assignments. The interface requires a 32-bit bus width for bank active mode and supports standard SDRAM timing parameters including tRAS, tCAS, and tRP. Detailed timing diagrams and setup requirements are provided in Section 10.3.4 and Figure 23.31 of the Hardware Manual Rev. 5.00 for the D6417709SBP167BV.

How does the D6417709SBP167BV handle reset initialization and undefined states?

The D6417709SBP167BV requires a low-level signal on RESETP until all power supplies (VCC, VCC–RTC, VCC–PLL1/PLL2) stabilize and CKIO completes at least four clock cycles. During this period, internal register states and pin outputs are undefined. The Hardware Manual Rev. 5.00 specifies that system design must prevent erroneous operation during this undefined window-e.g., by holding external peripherals in reset or disabling bus arbitration. The D6417709SBP167BV's General Precautions section explicitly prohibits accessing undefined/reserved addresses during initialization.

What are the power supply requirements for the RTC functionality in the D6417709SBP167BV?

The D6417709SBP167BV requires a dedicated 1.7–2.0 V supply on the VCC–RTC pin (Pin 3) to operate the real-time clock oscillator. This supply must be maintained independently during main power-down to preserve timekeeping. Before entering module standby mode, at least one register in the RTC, SCI, or TMU modules must be accessed to ensure consistent internal state-documented in Section 8.5.1 and Note *3 of the Hardware Manual Rev. 5.00. Failure to follow this sequence may result in RTC malfunction or loss of calendar data in the D6417709SBP167BV.