NXP Semiconductors MPC8349EVVALFB

Overview

MPC8349EVVALFB from Freescale Semiconductor is a PowerQUICC II Pro integrated host processor built on Power Architecture® technology, featuring an e300 core operating up to 667 MHz, dual 10/100/1000-Mbps Ethernet controllers (TSECs), and DDR1/DDR2 memory controller supporting up to 400 MHz data rate. It integrates security acceleration for IPSec/SSL/TLS, PCI v2.3 interfaces, USB 2.0 dual-role capability, and is deployed in network edge routers, industrial gateways, and secure embedded communications systems.

For engineers reviewing the MPC8349EVVALFB datasheet, MPC8349EVVALFB pinout, MPC8349EVVALFB application, or MPC8349EVVALFB equivalent, this page delivers verified electrical specs (1.3 V core, 2.5 V/1.8 V DDR I/O), thermal power data (5 W max at 667 MHz), PCIe-adjacent timing constraints, and functional validation of TSEC RGMII/GMII, USB OTG, and security engine crypto-channel concurrency - all critical for board-level bring-up and long-lifecycle design-in.

Technical Context

The MPC8349EVVALFB implements a superscalar e300 core with 32-Kbyte L1 instruction and data caches, dynamic power management, and software compatibility across Freescale's Power Architecture families. Its coherent system bus interconnects dual TSECs, PCI controllers, DDR/DDR2 memory controller, and security engine with four crypto-channels.

It supports simultaneous DDR1 (2.5 V SSTL2) and DDR2 (1.8 V SSTL2) operation with ECC, up to 4 banks × 1 Gbyte, and 16 open pages (32 for DDR2); dual PCI interfaces operate at 32-bit/66 MHz or combined 64-bit/66 MHz with hardware-enforced coherency and address translation units.

Key Specifications

Pinout & Package

Package: 620-pin TBGA (35 mm × 35 mm, 1.0 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8349EVVALFB, MPC8347EVVAJ trades peak frequency for lower power and cost, while MPC8377ERVAA extends functionality with SATA and cryptographic depth at the expense of package compatibility - both require schematic and layout revision for migration.

Availability

MPC8349EVVALFB is available at Aetrix Electronics and suitable for network infrastructure, industrial automation, and medical data aggregation requiring stable component supply across extended product lifecycles.

Supply support for MPC8349EVVALFB 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 MPC8349EVVALFB belongs to the PowerQUICC II Pro family, designed specifically for cost-optimized, highly integrated communications processors targeting edge routing, secure gateways, and protocol translation in resource-constrained environments.

FAQ

What is the maximum DDR2 data rate supported by the MPC8349EVVALFB?

The MPC8349EVVALFB supports DDR2 SDRAM up to 400 MHz data rate (200 MHz clock) in 64-bit configuration. This is confirmed in Section 6 of the hardware specifications, where DDR2 timing tables list tCK = 2.5 ns minimum (400 MHz). The controller supports registered DIMMs and full ECC, making it suitable for high-reliability buffering in network packet processing applications. MPC8349EVVALFB achieves this with 1.8 V SSTL2 I/O compliance and programmable DLL settings.

Does the MPC8349EVVALFB support USB On-The-Go functionality?

Yes, the MPC8349EVVALFB integrates a USB 2.0 dual-role controller compliant with USB Specification Rev. 2.0 and capable of operating in On-The-Go mode. As documented in Section 5 of the hardware spec, it supports both device mode (with six programmable endpoints and upstream-facing port) and host mode (EHCI-compatible, 480 Mbps high-speed operation). External PHY connection uses UTMI+, serial, or ULPI interfaces - no additional USB transceiver IC is required for basic OTG implementation. MPC8349EVVALFB's USB block is fully integrated into the coherent system bus architecture.

What are the power sequencing requirements for reliable MPC8349EVVALFB startup?

The MPC8349EVVALFB requires core voltage (VDD/AVDD) to be applied before I/O supplies (GVDD/LVDD/OVDD) to avoid I/O contention and excessive current draw (3–5 A). Per Section 2.2.1, VDD must reach 90% of nominal value before any I/O supply exceeds 0.7 V. PORESET must be asserted before power ramp completion. All I/O supplies may power up in any order relative to each other, but must track within ±60 mV of VDD/AVDD. These constraints ensure stable boot sequencer operation and prevent latch-up. MPC8349EVVALFB's power sequencing is non-negotiable for first-time bring-up.

How many crypto-channels does the security engine in the MPC8349EVVALFB provide?

The MPC8349EVVALFB security engine contains four independent crypto-channels, each supporting multi-command descriptor chains. Each channel can be statically or dynamically assigned to execution units (AESU, DEU, PKEU, MDEU, AFEU) via an integrated controller. This allows concurrent processing of multiple IPSec security associations or SSL/TLS sessions without CPU involvement. The hardware documentation confirms that all four channels are present and functional in revision 3.x silicon and later - which includes MPC8349EVVALFB - enabling true hardware-accelerated throughput scaling.

Is the MPC8349EVVALFB pin-compatible with earlier MPC8349E variants?

No, the MPC8349EVVALFB is not pin-compatible with earlier MPC8349E variants (e.g., MPC8349EMITB). The "VVALFB" suffix denotes the 620-pin TBGA package with updated silicon revision (3.x+), while earlier "MITB" parts used different ball maps and lacked DDR2 support, enhanced TSEC features, and certain security engine capabilities. Pinout validation from Section 18 of the hardware spec confirms distinct signal assignments for GVDD, LVDD, and PCI_SYNC_IN domains. Migration from MPC8349E to MPC8349EVVALFB requires full PCB redesign. MPC8349EVVALFB's package and pin list are unique to its revision level.