NXP Semiconductors MC8641DVU1000GB

Overview

MC8641DVU1000GB from Freescale Semiconductor is a single-core Power Architecture® e600-based integrated host processor targeting networking, storage, and wireless infrastructure applications. It features a 1000 MHz e600 core, dual 64-bit DDR/DDR2 SDRAM controllers (72-bit with ECC), four enhanced three-speed Ethernet controllers (10/100/1000 Mbps), PCI Express 1.0a (x1/x2/x4/x8), and Serial RapidIO 1.2 (1x/4x, up to 2.5 Gbps per lane).

For engineers reviewing the MC8641DVU1000GB datasheet, MC8641DVU1000GB pinout, MC8641DVU1000GB application, or MC8641DVU1000GB equivalent, key selection criteria include its 1000 MHz core frequency at 0.95 V core supply, dual DDR2-533 support, quad eTSECs with RGMII/TBI interfaces, and FC-CBGA-1023 packaging for high-density embedded control plane designs.

Technical Context

The MC8641DVU1000GB implements a superscalar 32-bit e600 core with separate 32-Kbyte L1 instruction and data caches, and an integrated 1-Mbyte eight-way set-associative L2 cache with ECC. Its memory subsystem supports two independent 64-bit DDR/DDR2 channels operating up to 300 MHz clock (600 Mbps data rate), with interleaving and ECC protection across up to 16 Gbytes per controller.

Connectivity includes four IEEE 802.3-compliant eTSECs supporting MII/RMII/GMII/RGMII/TBI/RTBI physical layers, a PCI Express 1.0a interface with configurable x1–x8 link width, and a Serial RapidIO 1.2 interface supporting 1.25/2.5/3.125 Gbaud per lane. The device uses a 1023-pin Hi-CTE flip-chip ceramic BGA package with defined power sequencing requiring VDD_PLAT and AVDD_PLAT to reach 90% before DDR I/O supplies ramp.

Key Specifications

Pinout & Package

MC8641DVU1000GB is housed in a 1023-ball Hi-CTE flip-chip ceramic ball grid array (FC-CBGA) package with 35 mm × 35 mm footprint and 1.0 mm ball pitch. Thermal and mechanical design requires adherence to Freescale's recommended reflow profile and underfill guidelines for flip-chip reliability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar integrated host processor applications.

Compared with MC8641DVU1000GB, MPC8641DZU1000GB offers dual-core scalability at the cost of higher thermal design power, while P2020NXE2KFC provides architectural modernization with DDR3 and 10-GbE - making it suitable for greenfield deployments where legacy PowerPC toolchain compatibility is not required.

Availability

MC8641DVU1000GB is available at Aetrix Electronics and suitable for telecom infrastructure, enterprise storage, wireless baseband, and industrial protocol gateway applications requiring stable component supply and long-term obsolescence management.

Supply support for MC8641DVU1000GB 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

Freescale Semiconductor was a leading designer of embedded processors, analog, and RF solutions, later acquired by NXP Semiconductors in 2015. Its Power Architecture portfolio served mission-critical infrastructure markets for over a decade.

The MPC8641 family was engineered specifically for high-performance, low-latency control plane processing in carrier-class networking and storage systems - emphasizing integration of memory, I/O, and coherency logic to minimize system-level complexity.

FAQ

What is the core voltage requirement for MC8641DVU1000GB?

The MC8641DVU1000GB operates at a nominal core supply voltage of 0.95 V ± 50 mV (VDD_Core0), as specified in Table 2 of the hardware specifications document. This voltage is mandatory for the 1000 MHz operation point and must be sequenced after platform supplies but before DDR I/O rails during power-up. Deviation beyond tolerance risks timing violations or functional failure.

Does MC8641DVU1000GB support DDR2-600 memory?

No, MC8641DVU1000GB supports DDR2 up to 533 Mbps (266 MHz clock), as confirmed in Section 1.1 "Key Features" and Table 6 power characterization data. While the DDR controller is rated for up to 300 MHz clock (600 Mbps), the 1000 MHz core variant is characterized and guaranteed only up to DDR2-533 - higher speeds require validation beyond published specs and are not supported in production configurations.

How many Ethernet ports does MC8641DVU1000GB integrate?

MC8641DVU1000GB integrates four independent enhanced three-speed Ethernet controllers (eTSECs), each supporting 10/100/1000 Mbps operation. Each eTSEC supports multiple physical interfaces including RGMII, GMII, MII, TBI, and RTBI - enabling flexible PHY selection without external MAC logic. All four controllers are fully functional and simultaneously usable in the MC8641DVU1000GB.

Is MC8641DVU1000GB pin-compatible with MPC8641DZU1000GB?

Yes, MC8641DVU1000GB and MPC8641DZU1000GB share identical 1023-ball FC-CBGA packaging, pinout, and power delivery requirements. The only functional difference is core count: MC8641DVU1000GB contains one e600 core, while MPC8641DZU1000GB contains two. Board designs can reuse the same layout, though thermal and power delivery must accommodate the dual-core variant's higher dissipation.

What boot sources are supported by MC8641DVU1000GB?

MC8641DVU1000GB supports booting from serial ROM via its dual I2C controllers, as implemented by the on-chip boot sequencer. The sequencer validates configuration data using preamble signature and CRC before initializing registers and memory. Parallel NOR flash boot is also supported through the local bus controller (LBC), with up to eight chip selects enabling multi-device memory mapping.