NXP Semiconductors MC8640DTHJ1067NE

Overview

MC8640DTHJ1067NE from NXP (formerly Freescale) is a dual-core Power Architecture® e600-based processor for high-reliability embedded systems, featuring two 1250 MHz cores, 1 MB ECC-protected L2 cache per core, AltiVec® vector engines, dual DDR/DDR2 memory controllers, and integrated RapidIO®, PCI Express®, and four Gigabit Ethernet interfaces. It serves as a system-on-chip control and data plane processor in telecom line cards and defense computing platforms.

For engineers reviewing the MC8640DTHJ1067NE datasheet, MC8640DTHJ1067NE pinout, MC8640DTHJ1067NE application, or MC8640DTHJ1067NE equivalent, key selection considerations include its 1023-pin HCTE ceramic package, 500 MHz integrated MPX bus, dual-core SMP/AMP operation modes, 90 nm SOI process, and hardware-accelerated TCP/UDP checksum offload across four Ethernet controllers.

Technical Context

The MC8640DTHJ1067NE implements two independent e600 cores with separate 32 KB I/D L1 caches (parity-protected) and dedicated 1 MB L2 caches (ECC-configurable), enabling cache-coherent symmetric or asymmetric multiprocessing. Its integrated MPX coherency module ensures inter-core cache consistency without external logic.

Peripherals are fully on-die: dual 64-bit DDR/DDR2 memory controllers (up to 500 MT/s, ECC-capable), four 10/100/1000 Ethernet MACs with RGMII/TBI support and 64 Rx/8 Tx queues each, one or two configurable PCI Express® links (1x/4x/8x, 2.5 Gbaud/lane), and a 1x/4x RapidIO® interface (1.25–3.125 Gbaud/lane) with SAR packetization and hardware error recovery.

Key Specifications

Pinout & Package

MC8640DTHJ1067NE is housed in a 33 mm × 33 mm, 1023-pin high-thermal coefficient of expansion (HCTE) ceramic land grid array (LGA) package optimized for ruggedized telecom and defense chassis. Pin functions are defined in MPC8640DIDCPFS Rev 1, including dedicated SerDes lanes, DDR/DDR2 DQ/DQS groups, MPX address/data multiplexed signals, and core-specific interrupt and debug pins.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core Power Architecture® processor applications.

Compared with MPC8641DTHJ1067NE, MC8640DTHJ1067NE lacks SATA and XAUI but offers identical compute density and cache coherency; versus P2020NXN2MHC, it delivers 2× core count and AltiVec® acceleration at higher power and larger package - making it optimal for throughput-bound telecom and defense data plane tasks.

Availability

MC8640DTHJ1067NE is available at Aetrix Electronics and suitable for telecom infrastructure, aerospace avionics, and industrial storage applications requiring stable component supply, long-lifecycle support, and radiation-hardened silicon characteristics.

Supply support for MC8640DTHJ1067NE 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

NXP Semiconductors is a global semiconductor company formed from the spin-off of Freescale Semiconductor and merged with NXP's MCU and connectivity businesses, specializing in secure, high-performance processors for automotive, industrial, and communications markets.

The MPC8640DTHJ1067NE belongs to NXP's Power Architecture® high-end communications processor family, designed specifically for replacing multi-chip control-and-data-plane architectures in carrier-grade networking and mission-critical defense systems.

FAQ

What is the maximum operating frequency of the MC8640DTHJ1067NE?

The MC8640DTHJ1067NE features two e600 cores rated for up to 1250 MHz operation under specified thermal and voltage conditions. This frequency is validated across temperature and voltage corners per MPC8640DIDCPFS Rev 1. The MC8640DTHJ1067NE achieves this speed using 90 nm SOI process technology and requires strict adherence to core power sequencing and cooling specifications.

Does the MC8640DTHJ1067NE support ECC on its L2 cache?

Yes, the MC8640DTHJ1067NE supports optional ECC protection on its 1 MB L2 cache per core. ECC can be enabled or disabled via configuration registers during boot, and error detection/correction is performed transparently in hardware. This capability is critical for MC8640DTHJ1067NE deployments in telecom switching and aerospace systems where data integrity is non-negotiable.

Which memory types does the MC8640DTHJ1067NE support?

The MC8640DTHJ1067NE integrates two independent 64-bit memory controllers supporting both DDR and DDR2 SDRAM, with data rates up to 500 MT/s and full ECC capability. It does not support DDR3, LPDDR, or GDDR. Memory initialization and timing parameters for MC8640DTHJ1067NE must comply with JEDEC DDR/DDR2 standards and are configured via internal registers during reset sequence.

Can the MC8640DTHJ1067NE operate in asymmetric multiprocessing (AMP) mode?

Yes, the MC8640DTHJ1067NE supports both symmetric (SMP) and asymmetric (AMP) multiprocessing modes. In AMP mode, each e600 core may run a separate operating system or bare-metal application with isolated memory regions and interrupt steering. This capability is implemented in MC8640DTHJ1067NE hardware via the MPIC and MPX coherency module, and is documented in the MPC8640D Multiprocessing User's Manual.

What high-speed interconnects are integrated into the MC8640DTHJ1067NE?

The MC8640DTHJ1067NE integrates RapidIO® (1x/4x, 1.25–3.125 Gbaud/lane), PCI Express® (1x/4x/8x, 2.5 Gbaud/lane), and four Gigabit Ethernet MACs with RGMII/TBI support. All are implemented as on-die SerDes blocks with hardware-accelerated packet handling. No external transceivers or switches are required for basic operation of MC8640DTHJ1067NE in these interfaces.

Is the MC8640DTHJ1067NE pin-compatible with other MPC86xx devices?

No, the MC8640DTHJ1067NE is not pin-compatible with other MPC86xx family members such as MPC8641D or MPC8610. Its 1023-pin HCTE ceramic LGA footprint, MPX bus pinout, and DDR/DDR2 memory interface layout are unique to the MPC8640DTHJ1067NE variant. Board designs must be specific to MC8640DTHJ1067NE and cannot reuse layouts from other MPC86xx processors.