NXP Semiconductors MPC8547EVTATGD

Overview

MPC8547EVTATGD from Freescale Semiconductor is a PowerQUICC III integrated communications processor featuring the e500v2 32-bit Power Architecture core, 512-Kbyte on-chip L2 cache/SRAM with full ECC, dual DDR/DDR2 memory controller (64-bit, up to 16 GB), and four enhanced three-speed Ethernet controllers (10/100/1000 Mbps). It targets high-throughput network infrastructure applications including enterprise routers, security gateways, and wireless base station controllers.

For engineers reviewing the MPC8547EVTATGD datasheet, MPC8547EVTATGD pinout, MPC8547EVTATGD application, or MPC8547EVTATGD equivalent, key selection criteria include its 1.0 GHz core frequency, PCI Express x8 and Serial RapidIO 4× support, integrated security engine (SEC) with AES-256, SHA-256, and RSA-2048 acceleration, and thermal specification of 0–105°C junction temperature.

Technical Context

The MPC8547EVTATGD implements the e500v2 core with 32-Kbyte L1 instruction and data caches (parity-protected), 36-bit real addressing, and MMU supporting 4-Kbyte to 4-Gbyte page sizes. Its L2 cache/SRAM is eight-way set-associative (32-byte lines), configurable for cache or SRAM mode with global or per-line locking and ECC on 64-bit boundaries.

It integrates a dual-channel DDR/DDR2 SDRAM controller supporting four banks (up to 4 Gbytes each), programmable timing, on-die termination (DDR2), and auto-refresh; plus four eTSECs with TCP/IP offload (IPv4/IPv6 header checksum, VLAN, jumbo frames up to 9.6 KB), and an integrated security engine with four crypto-channels, PKEU, AESU, MDEU, and RNG.

Key Specifications

Pinout & Package

The MPC8547EVTATGD is housed in a 1296-pin PBGA package (35 mm × 35 mm, 1.0 mm pitch) with thermally enhanced lid. Pin assignment follows the MPC8548E-compatible footprint, supporting pin-compatible migration within the PowerQUICC III family.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8548EVTATGD, the MPC8547EVTATGD offers identical pinout and software compatibility but trades 200 MHz core speed and PCI-X for lower thermal envelope; versus MPC8543EVTATGD, it adds PCI Express, dual DDR channels, and full SEC capability - making it optimal for mid-range carrier-grade systems requiring balanced performance, security, and I/O flexibility.

Availability

MPC8547EVTATGD is available at Aetrix Electronics and suitable for enterprise routing, IPsec gateway, wireless base station controller, and industrial Ethernet switch applications requiring stable component supply across extended product lifecycles.

Supply support for MPC8547EVTATGD 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 processing, connectivity, and analog solutions for automotive, industrial, and networking markets.

The MPC8547EVTATGD belongs to the PowerQUICC III family - designed specifically for integrated communications processors in carrier-class and enterprise networking equipment, emphasizing hardware acceleration, multi-protocol I/O, and real-time determinism.

FAQ

What is the maximum DDR2 memory capacity supported by the MPC8547EVTATGD?

The MPC8547EVTATGD supports up to 16 GB of DDR2 SDRAM via its 64-bit memory controller across four independent banks, each configurable up to 4 GB. This capacity assumes ×8 or ×16 DRAM components with densities from 64 Mbits to 4 Gbits, and requires proper PCB layout for signal integrity at 400 MT/s data rates. The MPC8547EVTATGD's DDR2 interface includes on-die termination and programmable read/write leveling to ensure reliable operation in high-noise environments.

Does the MPC8547EVTATGD support PCI Express root complex mode?

Yes, the MPC8547EVTATGD supports PCI Express root complex mode, configurable via POR strap settings. It implements PCI Express 1.0a compliance with x1, x2, x4, or x8 link widths, auto-detection of connected lanes, and full 64-bit address decoding. In root complex mode, the MPC8547EVTATGD can enumerate and manage downstream endpoints, allocate memory and I/O spaces, and handle configuration transactions - essential for building modular line cards in telecom chassis systems.

How does the integrated security engine (SEC) in the MPC8547EVTATGD accelerate IPsec processing?

The MPC8547EVTATGD's SEC accelerates IPsec by offloading cryptographic operations from the e500v2 core using dedicated execution units: AESU handles AES-128/192/256 in CBC/CTR/CCM modes; MDEU computes SHA-1/256 and HMAC; and PKEU performs RSA-2048 key exchange. With four crypto-channels supporting chained descriptors, the SEC processes inbound/outbound ESP/AH headers at line rate - verified at 1.2 Gbps for 1280-byte packets - freeing the main CPU for routing and signaling tasks.

What thermal design considerations apply to the MPC8547EVTATGD in continuous operation?

The MPC8547EVTATGD is rated for 0–105°C junction temperature and dissipates up to 10.8 W (typical-105) at 1.0 GHz under Dhrystone load. Successful thermal design requires a 4-layer PCB with internal ground/power planes, ≥4 thermal vias under the package center, and a heatsink with ≤2.5°C/W thermal resistance. Freescale's AN3705 recommends maintaining case temperature below 85°C using natural convection or low-velocity airflow (≥200 LFM) to avoid thermal throttling or long-term reliability degradation.

Can the MPC8547EVTATGD boot directly from SPI flash?

No, the MPC8547EVTATGD does not support direct SPI flash boot. Its boot sequencer loads configuration data exclusively from I2C-connected serial EEPROM (e.g., AT24C02) at reset, as defined by the I2C address programmed into PORDEVSEL[7:0]. Boot code must be staged into DDR/DDR2 memory via the I2C-initialized local bus or PCIe interface before execution begins. External boot ROMs require parallel interface (8/16/32-bit) connection to the local bus chip select, not SPI.