Renesas HD6417751RBP240D

Overview

HD6417751RBP240D from Renesas Electronics is a 32-bit RISC microprocessor based on the SH-4 core, featuring a 240 MHz CPU clock, integrated FPU, MMU, PCI controller (PCIC), and dual serial interfaces (SCI/SCIF). It supports DRAM, SDRAM, and PCMCIA memory interfaces and targets high-performance multimedia and office automation systems.

For engineers reviewing the HD6417751RBP240D datasheet, HD6417751RBP240D pinout, HD6417751RBP240D application, or HD6417751RBP240D equivalent, key selection criteria include its 240 MHz operation at 1.5 V core supply, 256-pin BGA package, PCI 2.1 subset compliance, and hardware standby capability with RTC retention.

Technical Context

The HD6417751RBP240D implements a superscalar SH-4 architecture enabling parallel execution of two instructions per cycle. It integrates a 16-KB instruction cache and 32-KB operand cache-half configurable as on-chip RAM-and features a 26-bit address / 32-bit data SH bus with programmable external bus frequency division (1/2 to 1/8).

Its PCI controller supports a subset of PCI Rev. 2.1 with 32-bit multiplexed address/data, selectable internal or external clock, and full bus mastering. The device includes a real-time clock (RTC), interrupt controller (INTC), timers (TMU), and user break controller (UBC) for embedded debug support.

Key Specifications

Pinout & Package

HD6417751RBP240D uses a 256-pin fine-pitch BGA package (1.0 mm ball pitch) with dedicated power domains for core (1.5 V), I/O (3.3 V), PLL, CPG/RTC, and analog sections. Pin functions are defined per Table 1.3 in the SH7751R Hardware Manual Rev. 4.00.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance embedded processor applications.

Compared with HD6417751RBP200, HD6417751RBP240D delivers 20% higher deterministic throughput for real-time media workloads; compared with HD6417751RBG240, it trades pin count and memory scalability for lower package cost and thermal density in space-constrained designs.

Availability

HD6417751RBP240D is available at Aetrix Electronics and suitable for digital set-top boxes, industrial HMIs, network-attached storage, and high-end document scanners requiring stable component supply across long-lifecycle embedded programs.

Supply support for HD6417751RBP240D 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 automotive, industrial, and consumer markets.

The SH7751R Group-including HD6417751RBP240D-is designed for high-performance embedded multimedia and office automation systems requiring integrated PCI, FPU, and memory management capabilities.

FAQ

What is the core voltage requirement for stable operation of the HD6417751RBP240D?

The HD6417751RBP240D requires a nominal 1.5 V ±0.075 V core supply (VDD) for guaranteed 240 MHz operation. Deviation beyond this range may cause timing violations or functional failure. The I/O bank operates at 3.3 V, and separate 1.5 V supplies are mandatory for PLL and CPG/RTC domains-even if those blocks are unused-as specified in the Hardware Manual Rev. 4.00.

Does the HD6417751RBP240D support PCI hot-plug or advanced error reporting?

No, the HD6417751RBP240D implements only a subset of PCI Rev. 2.1 and does not support hot-plug detection, PCI Express features, or advanced error reporting (AER). Its PCI controller provides basic master/slave transaction capability, configuration space access, and parity checking-but lacks mechanisms for surprise removal or error injection recovery required by modern hot-plug standards.

Can the HD6417751RBP240D's operand cache be used exclusively as SRAM?

No-the HD6417751RBP240D allows only half of the 32 KB operand cache (16 KB) to be configured as on-chip RAM via the ORA bit in the CCR register. The remaining 16 KB remains dedicated to caching. Full cache disablement is not supported; the device always maintains some level of operand caching functionality.

What is the maximum SDRAM capacity supported by the HD6417751RBP240D's memory controller?

The HD6417751RBP240D supports up to 512 MB of SDRAM using its 13-bit row address (RA[12:0]), 10-bit column address (CA[9:0]), and 2-bit bank select (BA[1:0])-configured via the BSC registers. This assumes standard x16 or x32 SDRAM devices with appropriate timing parameters programmed into the BSC's SDRAM control registers.

Is hardware debug support available on the HD6417751RBP240D?

Yes, the HD6417751RBP240D includes a User Break Controller (UBC) supporting hardware breakpoints, watchpoints, and trace triggers compatible with Renesas' E8/E10 debug tools. It also provides JTAG TAP (TCK/TMS/TDI/TDO/TRST) for boundary-scan testing and core visibility-enabling non-intrusive real-time debugging of complex multimedia firmware.