Renesas D6417729RF133BV

Overview

D6417729RF133BV from Renesas Electronics is a 32-bit RISC microprocessor based on the SuperH™ SH2-DSP CPU core, integrating cache memory, MMU, RTC, three serial interfaces, timers, interrupt controller, and bus state controller. It operates at up to 133 MHz with 1.7–2.0 V core supply and supports little- and big-endian modes for embedded control applications requiring high-speed processing and low power consumption.

For engineers reviewing the D6417729RF133BV datasheet, D6417729RF133BV pinout, D6417729RF133BV application, or D6417729RF133BV equivalent, key selection criteria include its SH7729R group identity, FP-208C/BP-240A package mapping, synchronous DRAM interface support, Iφ:Bφ clock ratio flexibility, and module standby capability for RTC and peripheral power management.

Technical Context

The D6417729RF133BV implements the SH7729R Group architecture with a 32-bit internal bus, 4-way set-associative cache (address array H'F1000000–H'F1FFFFFF), and dual PLL clock generation supporting Iφ:Bφ ratios including 1:1, 2:1, 4:1, and 6:1. It includes a memory management unit (MMU) and user break controller (UBC) for real-time debugging.

Its peripheral set comprises three SCIF serial interfaces with DMA-triggered TXI/RXI interrupts, a real-time clock with module standby control requiring prior register access to RTC/SCI/TMU, and synchronous DRAM interface configurable for bank active or auto-precharge mode-restricted to 32-bit bus width in bank active mode.

Key Specifications

Pinout & Package

Package: FP-208C (208-pin fine-pitch plastic QFP) and BP-240A (240-pin plastic BGA); both RoHS-compliant and rated for industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SH7727R, D6417729RF133BV delivers 33% higher clock rate, integrated RTC, and UBC for field-debuggable systems; compared with SH7780, it offers proven industrial reliability and lower BOM cost at the expense of raw compute throughput and modern interface support.

Availability

D6417729RF133BV is available at Aetrix Electronics and suitable for industrial HMI panels, network edge routers, digital video recorders, and medical diagnostic terminals requiring stable component supply across extended product lifecycles.

Supply support for D6417729RF133BV 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, power, and SoC solutions for automotive, industrial, and consumer markets.

The SH7729R Group-including D6417729RF133BV-is designed for high-performance embedded control applications demanding real-time responsiveness, low-power operation, and rich peripheral integration in space-constrained industrial systems.

FAQ

What is the maximum operating frequency of the D6417729RF133BV?

The D6417729RF133BV operates at a maximum internal clock (Iφ) frequency of 133 MHz. This rating assumes proper decoupling, stable 1.7–2.0 V core supply, and adherence to specified timing margins for external bus cycles and PLL lock conditions. Frequency scaling is controlled via the FRQCR register, and changes must avoid concurrent DMAC transfers when Iφ:Bφ ratio differs from 1:1.

Does the D6417729RF133BV include a real-time clock (RTC)?

Yes, the D6417729RF133BV integrates a real-time clock (RTC) module. To enter module standby mode for the RTC, the device requires prior register access to RTC, SCI, or TMU-this sequence ensures internal state consistency. The RTC is powered by a dedicated VCC–RTC supply (1.7–2.0 V) and supports battery backup for continuous timekeeping during main power loss.

What package options are available for the D6417729RF133BV?

The D6417729RF133BV is offered in two package variants: FP-208C (208-pin fine-pitch plastic QFP) and BP-240A (240-pin plastic BGA). Both packages comply with RoHS directives and are qualified for industrial temperature operation (–40°C to +85°C). Pin assignments-including VCC, VCC–RTC, and PLL supply pins-are documented in the SH7729R Hardware Manual Rev. 5.00.

Can the D6417729RF133BV support synchronous DRAM in bank active mode?

Yes, the D6417729RF133BV supports synchronous DRAM in bank active mode, but only when the bus width for all memory areas is configured as 32 bits. This restriction is enforced by hardware; using narrower bus widths in bank active mode may cause undefined behavior. Auto-precharge mode is recommended for mixed-width configurations and is enabled by default when areas 2 and 3 are both assigned as SDRAM space.

What is the role of the User Break Controller (UBC) in the D6417729RF133BV?

The User Break Controller (UBC) in the D6417729RF133BV provides hardware-assisted debugging capabilities, including instruction breakpoint setting, data access monitoring, and trace event generation-all without software intervention. It enables non-intrusive real-time analysis of program flow and memory access patterns, making D6417729RF133BV suitable for safety-critical development where deterministic debug visibility is required.