NXP Semiconductors MC8641DVJ1500KE

Overview

MC8641DVJ1500KE from Freescale Semiconductor is a single-core Power Architecture® e600-based integrated host processor with 32-Kbyte L1 instruction and data caches, 1-Mbyte unified L2 cache with ECC, 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), Serial RapidIO 1.2 (1x/4x, 2.5 Gbps/lane), and integrated MPX coherency module. It targets networking infrastructure, storage systems, and wireless baseband applications.

For engineers reviewing the MC8641DVJ1500KE datasheet, MC8641DVJ1500KE pinout, MC8641DVJ1500KE application, or MC8641DVJ1500KE equivalent, key selection criteria include its 1500 MHz core frequency, 600 MHz platform clock, 1.1 V core supply, 1023-pin FC-CBGA package, and support for DDR2-600 (300 MHz) memory interfaces - all critical for high-throughput embedded control and packet processing designs.

Technical Context

The MC8641DVJ1500KE implements a superscalar e600 core with eleven execution units, separate instruction/data MMUs, 36-bit real addressing, and hardware-assisted multiprocessing. Its memory subsystem integrates two independent DDR/DDR2 controllers supporting up to 16 GB per channel with cache-line and page interleaving.

Connectivity includes four eTSECs with MII/RGMII/TBI/RTBI physical layer support, PCI Express 1.0a with configurable link widths, and Serial RapidIO 1.2 with atomic transaction support to memory controllers - enabling deterministic low-latency interconnect in distributed telecom and storage architectures.

Key Specifications

Pinout & Package

MC8641DVJ1500KE uses a 1023-ball FC-CBGA package with 1.0 mm pitch, designed for high-density routing and thermal performance in industrial and telecom environments. Ball map follows JEDEC MO-262AC standard with dedicated power/ground arrays, differential clock inputs, and banked I/O groups aligned to DDR, eTSEC, and SerDes signal integrity requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8641DVL1500KE and P2020NXE2KFC, MC8641DVJ1500KE offers the lowest power envelope (20.3 W typical) and direct Serial RapidIO support for legacy telecom interconnects, while avoiding the complexity and cost of dual-core or security-enhanced successors.

Availability

MC8641DVJ1500KE is available at Aetrix Electronics and suitable for wireless infrastructure, enterprise storage, and industrial edge routing applications requiring stable component supply across extended product lifecycles.

Supply support for MC8641DVJ1500KE 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 (now part of NXP Semiconductors) is a fabless semiconductor company specializing in embedded processors, analog, and connectivity solutions for automotive, industrial, and networking markets.

MC8641DVJ1500KE belongs to the MPC8641 family of integrated host processors designed specifically for high-performance, low-latency embedded control in telecom infrastructure equipment where DDR2 memory, multi-gigabit Ethernet, and coherent multiprocessing are essential.

FAQ

What is the maximum DDR2 data rate supported by MC8641DVJ1500KE?

The MC8641DVJ1500KE supports DDR2-600 operation, corresponding to a 300 MHz clock frequency and 600 Mbps per data line. This enables up to 9.6 GB/s peak bandwidth per 64-bit DDR2 channel when operating at full rate with 1.8 V I/O supply and proper board-level termination matching SSTL-18 specifications.

Does MC8641DVJ1500KE support PCI Express Gen2?

No, MC8641DVJ1500KE implements PCI Express 1.0a only, with a fixed 2.5 Gbaud signaling rate and 2.0 Gbps per lane. It does not support Gen2 (5.0 Gbaud) or higher revisions. Designs requiring Gen2 must migrate to later QorIQ or Layerscape processors.

What is the function of the SD1_IMP_CAL_TX pin on MC8641DVJ1500KE?

SD1_IMP_CAL_TX is a dedicated DDR1 output impedance calibration reference pin on MC8641DVJ1500KE. It connects to an external 240 Ω resistor to ground, enabling on-die calibration of DDR1 driver output impedance to 18 Ω (full strength) or 36 Ω (half strength), ensuring signal integrity across varying process/voltage/temperature conditions.

Can MC8641DVJ1500KE operate with DDR3 memory?

No, MC8641DVJ1500KE supports DDR and DDR2 SDRAM only, as confirmed in Section 6 of the hardware specifications. It lacks DDR3-specific timing controls, ODT management, and electrical interface compliance (e.g., SSTL-15). DDR3 compatibility requires newer QorIQ P-series or LS-series processors.

What thermal management is required for MC8641DVJ1500KE at 1500 MHz?

At 1500 MHz and 1.1 V core voltage, MC8641DVJ1500KE dissipates 20.3 W typical and up to 28.9 W maximum. A heatsink with ≥0.35°C/W thermal resistance and forced airflow (≥200 LFM) is required to maintain junction temperature ≤105°C in ambient temperatures up to 70°C - validated per Freescale's thermal characterization in Rev. 3 datasheet.