NXP Semiconductors MPC8545EVJATGD

Overview

MPC8545EVJATGD from NXP Semiconductors (formerly Freescale) is a PowerQUICC III integrated communications processor featuring a 32-bit e500v2 core, 512-Kbyte on-chip L2 cache/SRAM with full ECC, dual DDR/DDR2 memory controller (64-bit, up to 16 Gbytes), and four enhanced three-speed Ethernet controllers (10/100/1000 Mbps). It targets high-throughput network edge and control plane applications including enterprise routers, secure gateways, and industrial communications systems.

For engineers reviewing the MPC8545EVJATGD datasheet, MPC8545EVJATGD pinout, MPC8545EVJATGD application, or MPC8545EVJATGD equivalent, key selection considerations include its 1.1 V core supply, 133 MHz local bus interface, PCI Express x8 support, integrated security engine (SEC) with AES/SHA/RSA acceleration, and thermal specification of 0–105°C junction temperature.

Technical Context

The MPC8545EVJATGD implements the e500v2 core with 32-Kbyte L1 instruction and data caches (parity-protected), SPE and double-precision floating-point APUs, and a 36-bit real address space. Its memory subsystem includes programmable DDR/DDR2 timing, on-die termination for DDR2, and battery-backed memory support.

It integrates dual I²C controllers, DUART with 16450/16550D compatibility, programmable interrupt controller compliant with OpenPIC, and four-channel DMA with scatter-gather and misaligned transfer capability. The device supports PCI Express 1.0a (x8/x4/x2/x1), Serial RapidIO 1.2 (1×/4×, up to 3.125 Gbaud), and two PCI/PCI-X controllers - one 32-/64-bit at up to 133 MHz and one 32-bit at 16–66 MHz.

Key Specifications

Pinout & Package

Package: 783-pin PBGA (35 mm × 35 mm, 1.0 mm pitch), RoHS-compliant, thermally enhanced with exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8545EVJATGD, MPC8547EVJATGD delivers higher compute density within identical thermal and mechanical constraints, while MPC8543EVJATGD trades performance and interconnect breadth for bill-of-materials reduction - both retain full software compatibility and DDR2/PCIe/eTSEC feature parity.

Availability

MPC8545EVJATGD is available at Aetrix Electronics and suitable for enterprise routing infrastructure, secure industrial gateways, communications server baseboards, and defense data link processors requiring stable component supply across extended product lifecycles.

Supply support for MPC8545EVJATGD 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 Philips' semiconductor division, now specializing in secure connectivity solutions for automotive, industrial, and networking markets.

The MPC8545EVJATGD belongs to the PowerQUICC III family, designed specifically for high-performance, integrated communications processing in carrier-grade and mission-critical embedded systems where security acceleration, multi-protocol I/O, and thermal robustness are essential.

FAQ

What is the maximum DDR2 data rate supported by the MPC8545EVJATGD?

The MPC8545EVJATGD supports DDR2-800 (400 MHz clock, 800 MT/s) with a 64-bit interface. Its DDR/DDR2 memory controller is programmable for timing parameters including tRCD, tRP, tRAS, and CAS latency, and includes on-die termination control for signal integrity optimization. This enables sustained bandwidth up to 6.4 GB/s in dual-channel configurations when paired with appropriate DIMMs - a capability confirmed in the MPC8548E Hardware Specifications document, which applies identically to the MPC8545EVJATGD per family documentation.

Does the MPC8545EVJATGD support PCI Express root complex functionality?

Yes, the MPC8545EVJATGD supports configurable PCI Express operation as either root complex or endpoint, per Section 17 of the MPC8548E Hardware Specifications. It implements PCI Express 1.0a compliance with support for x8, x4, x2, and x1 link widths, auto-detection of connected lanes, 32-/64-bit addressing, and 256-byte maximum payload size. This capability is shared across the MPC8543/45/47/48E family, and the MPC8545EVJATGD's pinout and configuration registers fully enable root complex mode for driving downstream switches or endpoints.

How does the integrated security engine (SEC) in the MPC8545EVJATGD accelerate IPsec processing?

The MPC8545EVJATGD's SEC accelerates IPsec through dedicated hardware units including AESU (AES-128/192/256), MDEU (SHA-1/256, MD5), and PKEU (RSA-2048, ECC-511), all accessible via descriptor-based command chains. It processes inbound/outbound ESP/AH headers with zero-copy DMA, performs per-packet IP header checksum generation/verification, and supports IKEv1/v2 key negotiation offload. These functions are documented in Section 5 of the MPC8548E Hardware Specifications and apply directly to the MPC8545EVJATGD as a family member.

What thermal management features are implemented in the MPC8545EVJATGD?

The MPC8545EVJATGD incorporates doze, nap, and sleep power states with dynamic block gating, CKE-controlled SDRAM self-refresh, and thermal monitoring via on-die sensors. Its 0–105°C junction rating is validated under typical-105 conditions (1.1 V, Dhrystone load), and power sequencing mandates GVDD ramp after core supplies to prevent DDR bus contention. These thermal specifications and controls are defined in Sections 3 (Power Characteristics) and 21 (Thermal) of the MPC8548E Hardware Specifications, which explicitly cover the MPC8545EVJATGD.

Can the MPC8545EVJATGD operate with both DDR and DDR2 memory simultaneously?

No, the MPC8545EVJATGD's DDR/DDR2 memory controller supports only one memory type per instantiation - it cannot drive DDR and DDR2 devices concurrently on the same bus. However, the controller is fully programmable to adapt to either DDR-400 (200 MHz) or DDR2-800 (400 MHz) timing, voltage (2.5 V or 1.8 V), and electrical standards (SSTL_2 or SSTL_1.8). Configuration is performed at boot via LBC registers, and the MPC8545EVJATGD datasheet confirms this single-mode operation aligns with family design.