NXP Semiconductors MPC8548EHXAUJ

Overview

MPC8548EHXAUJ from NXP Semiconductors (formerly Freescale) is a high-performance Power Architecture®-based integrated communications processor featuring an e500v2 core, 512-Kbyte L2 cache/SRAM with full ECC, dual DDR/DDR2 memory controller (64-bit, up to 16 Gbytes), four enhanced three-speed Ethernet controllers (10/100/1000 Mbps), integrated security engine (SEC) supporting AES, DES, SHA, RSA, and ECC, and dual high-speed interconnects-PCI Express (x8) and Serial RapidIO (1×/4×, up to 3.125 Gbaud). It targets carrier-grade networking, telecom infrastructure, and secure enterprise routing applications.

For engineers reviewing the MPC8548EHXAUJ datasheet, MPC8548EHXAUJ pinout, MPC8548EHXAUJ application, or MPC8548EHXAUJ equivalent, key selection criteria include its 1.1 V core supply, 133 MHz local bus interface, 105 °C junction temperature rating, support for jumbo frames (9.6 Kbytes), and hardware-accelerated IPsec/SSL/TLS processing via the SEC engine.

Technical Context

The MPC8548EHXAUJ implements the e500v2 core with 32-Kbyte L1 instruction and data caches (parity-protected), 36-bit real addressing, MMU supporting 4-Kbyte–4-Gbyte pages, and SPE/FP APUs for vector and floating-point computation. Its memory subsystem includes a programmable DDR/DDR2 controller with on-die termination (DDR2), auto-refresh, and battery-backed memory support.

Interconnect architecture integrates two PCI/PCI-X controllers (one 32-/64-bit at up to 133 MHz, one 32-bit at 16–66 MHz), PCI Express 1.0a (x1/x2/x4/x8, root/endpoint configurable), Serial RapidIO 1.2 (1.25/2.5/3.125 Gbaud), and OCeaN switch fabric for internal packet routing. The integrated security engine provides four crypto-channels with dedicated units for AES, DES, SHA, RSA, ECC, and RNG.

Key Specifications

Pinout & Package

The MPC8548EHXAUJ is housed in a 783-pin, 27 mm × 27 mm, 1.0 mm pitch PBGA package (package code HXAUJ), thermally enhanced with exposed thermal pad. Pin functions are multiplexed across high-speed I/O banks supporting configurable interface combinations: either eight PCI Express lanes or four PCI Express plus four Serial RapidIO lanes.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8547E and MPC8543E, the MPC8548EHXAUJ delivers full feature parity-including 1.5 GHz operation, 512-KB L2 cache, PKEU-enabled asymmetric crypto, quad eTSECs, and dual high-speed interconnects-making it the only family member qualified for carrier-class, crypto-intensive, multi-protocol infrastructure.

Availability

MPC8548EHXAUJ is available at Aetrix Electronics and suitable for carrier-grade routers, secure VPN gateways, and telecom base station controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for industrial and infrastructure deployments.

Supply support for MPC8548EHXAUJ 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 leader focused on secure connectivity solutions for automotive, industrial, and communications markets, with deep heritage in Power Architecture® technology and embedded processing.

The MPC8548EHXAUJ belongs to the PowerQUICC III family-designed specifically for high-performance, secure, and scalable communications infrastructure requiring integrated networking, security, and real-time control in a single SoC.

FAQ

What is the maximum operating frequency of the MPC8548EHXAUJ core?

The MPC8548EHXAUJ operates at a maximum core frequency of 1.5 GHz, as confirmed by Freescale's MPC8548EEC Rev. 10 specification. This frequency is achieved with a 1.1 V ± 55 mV core supply and junction temperature maintained at or below 105 °C. The device's CCB (core complex bus) frequency scales accordingly, supporting DDR2 data rates up to 533 MHz. Performance validation was conducted using Dhrystone benchmarking under typical-105 conditions.

Does the MPC8548EHXAUJ support DDR2 memory with on-die termination?

Yes, the MPC8548EHXAUJ DDR2 memory controller explicitly supports on-die termination (ODT), as documented in Section 6 of the MPC8548EEC Rev. 10 specification. ODT is enabled via configuration registers and is required for signal integrity compliance with JEDEC DDR2 standards at data rates up to 533 MHz. The controller also supports registered DIMMs, auto-refresh, and CKE-based power-down modes.

Can the MPC8548EHXAUJ operate in both PCI Express root complex and endpoint modes?

Yes, the MPC8548EHXAUJ PCI Express interface supports configurable operation as either root complex or endpoint, as stated in Section 17 of the MPC8548EEC Rev. 10 specification. Mode selection is controlled via strap pins and configuration space registers. This flexibility allows the MPC8548EHXAUJ to serve as a host processor in add-in cards or as a peripheral in larger backplane systems without hardware redesign.

What cryptographic algorithms does the integrated security engine (SEC) in the MPC8548EHXAUJ accelerate?

The MPC8548EHXAUJ integrated security engine accelerates AES (128/192/256-bit keys), DES/3DES, SHA-1/SHA-256, MD5, HMAC, RSA (up to 2048-bit), ECC (F2m/F(p), up to 511-bit), KEA/Kasumi (F8/F9), A5/3, GEA-3, and ARC4 via dedicated execution units. These capabilities are verified in Sections 1.1.5 and 4.1 of the MPC8548EEC Rev. 10 specification and enable full IPSec, SSL/TLS, and 3GPP protocol offload.

Is the MPC8548EHXAUJ pin-compatible with other PowerQUICC III processors like the MPC8543E or MPC8547E?

No, the MPC8548EHXAUJ is not pin-compatible with the MPC8543E or MPC8547E. Although all belong to the PowerQUICC III family, they use different package variants: MPC8548EHXAUJ uses a 783-pin PBGA (HXAUJ), while MPC8547E uses a 672-pin PBGA (HXAUA) and MPC8543E uses a 581-pin PBGA (HXAUB). Pin counts, ball maps, and power delivery schemes differ significantly, requiring unique PCB layouts for each part.