NXP Semiconductors MC8641DTVU1333JC

Overview

MC8641DTVU1333JC 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 (eTSEC) controllers, PCI Express 1.0a (x1/x2/x4/x8), Serial RapidIO 1.2 (1x/4x, 2.5 Gbps/lane), and integrated DMA, I²C, DUART, and MPIC. It targets networking infrastructure, wireless baseband, and storage control applications.

For engineers reviewing the MC8641DTVU1333JC datasheet, MC8641DTVU1333JC pinout, MC8641DTVU1333JC application, or MC8641DTVU1333JC equivalent, key selection considerations include its 1333 MHz core frequency at 1.05 V, dual DDR2-533 support, quad eTSEC with RGMII/GMII/TBI interfaces, PCIe 1.0a compliance, and 1023-pin FC-CBGA package - all validated for high-throughput embedded control in telecom and industrial systems.

Technical Context

The MC8641DTVU1333JC implements a superscalar e600 core with eleven execution units, separate instruction/data MMUs, 36-bit real addressing, and hardware multiprocessing support. Its memory subsystem includes two independent 64-bit DDR/DDR2 controllers supporting up to 16 GB per channel, cache-line and page interleaving, and ECC on both L2 cache and DDR data paths.

Connectivity is delivered via four eTSECs compliant with IEEE 802.3/802.3u/802.3ab, supporting full-duplex FIFO mode, TCP/IP offload, VLAN handling, and RMON statistics; plus one PCIe 1.0a interface (2.5 Gbaud, x1–x8) and one Serial RapidIO 1.2 interface (1.25–3.125 Gbaud, 1x/4x). Both high-speed serial interfaces use dedicated SerDes supplies (SVDD/XVDD_SRDSn/AVDD_SRDSn) and LVDS signaling.

Key Specifications

Pinout & Package

MC8641DTVU1333JC is housed in a 1023-pin FC-CBGA package (35 mm × 35 mm, 1.27 mm pitch) with thermal lid and Hi-CTE ceramic substrate optimized for telecom-grade thermal cycling reliability. Pin assignment follows Freescale's MPC8641D Rev. 3 signal listing (Section 17), with dedicated power domains (VDD_Core0, D1_GVDD, LVDD, OVDD, SVDD, etc.) and differential SerDes lanes routed to outer rows.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC8641DTVU1333JC, the dual-core MPC8641DVTU1333JC doubles compute throughput but increases power by ~40%; the P2020NXE2KFC trades RapidIO and L2 cache for crypto acceleration and lower legacy software porting effort - making each optimal for distinct system-level trade-offs in throughput, security, or interconnect topology.

Availability

MC8641DTVU1333JC is available at Aetrix Electronics and suitable for wireless infrastructure, enterprise routing, and industrial storage applications requiring stable component supply, long-term lifecycle management, and traceable sourcing from authorized channels.

Supply support for MC8641DTVU1333JC 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 since 2015) is a fabless semiconductor company specializing in embedded processors, analog, and connectivity solutions for automotive, industrial, and networking markets.

The MPC8641 family was designed as a high-performance integrated host processor targeting carrier-grade networking, wireless infrastructure, and storage control - delivering balanced compute, memory, and I/O bandwidth within a single die and thermally robust FC-CBGA package.

FAQ

What is the maximum DDR2 data rate supported by MC8641DTVU1333JC?

The MC8641DTVU1333JC supports DDR2-533 operation, corresponding to a 266 MHz clock and 533 Mbps per pin. This is confirmed in Section 4 of the hardware specifications, which states "Support of up to a 300-MHz clock rate and a 600-MHz DDR2 SDRAM" - with the 1333 MHz core variant specifically validated for DDR2-533 (533 Mbps) in Table 6 and electrical characterization. The MC8641DTVU1333JC achieves this using dual 64-bit interfaces with ECC, enabling up to 8.5 GB/s aggregate bandwidth.

Does MC8641DTVU1333JC support PCIe Gen1 x8 configuration?

Yes, MC8641DTVU1333JC supports PCIe 1.0a with configurable link widths including x1, x2, x4, and x8. Section 14 of the hardware specification explicitly states "Supports x1, x2, x4, and x8 link widths" and "2.5 Gbaud, 2.0 Gbps lane". The x8 mode delivers up to 4 GB/s bidirectional bandwidth and is electrically validated for the 1023-pin FC-CBGA package, with SerDes lanes allocated in Port 1 per signal listing (Section 17).

What is the function of the MPX coherency module (MCM) in MC8641DTVU1333JC?

The MPX coherency module (MCM) in MC8641DTVU1333JC provides cache coherency and inter-core communication for multiprocessor configurations. Though MC8641DTVU1333JC is single-core, the MCM remains active to manage platform bus transactions, support future scalability, and ensure atomic operations between L1/L2 caches and DDR controllers. It implements ten local address windows and supports optional low-memory offset mode - critical for deterministic memory-mapped I/O in telecom control planes.

Can MC8641DTVU1333JC boot directly from SPI flash?

No, MC8641DTVU1333JC does not support direct SPI flash boot. Its boot sequencer loads configuration data exclusively via the I²C interface from serial EEPROM (as stated in Section 1.1: "Optionally loads configuration data from serial ROM at reset via the I2C interface"). SPI flash requires external glue logic or a companion microcontroller; the MC8641DTVU1333JC's I²C boot mode includes CRC validation and extended addressing for secure, verified initialization.

What thermal management features are implemented in MC8641DTVU1333JC?

MC8641DTVU1333JC integrates hardware thermal management including junction temperature monitoring (TJ = 0–105°C operational range), dynamic thermal throttling triggers, and performance monitor counters for thermal event tracking. Section 19 specifies thermal resistance (θJA ≈ 12.5°C/W typical) and mandates heatsink mounting via the FC-CBGA thermal lid. The device also supports software-controlled core clock gating and voltage scaling (per Table 2's 0.95/1.05/1.10 V options) to reduce power under thermal constraint - validated up to 105°C junction temperature.