NXP Semiconductors KMPC8349EVVAGDB

Overview

KMPC8349EVVAGDB from Freescale Semiconductor is a PowerQUICC II Pro integrated host processor featuring an embedded PowerPC e300 core operating at up to 667 MHz, dual 10/100/1000 Mbps Ethernet controllers (TSECs), DDR1/DDR2 memory controller supporting up to 400 MHz data rate and 64-bit interface, and integrated security engine with AES, DES, SHA, RSA, and RNG acceleration - deployed in enterprise routing, industrial gateways, and secure network-attached storage systems.

For engineers reviewing the KMPC8349EVVAGDB datasheet, KMPC8349EVVAGDB pinout, KMPC8349EVVAGDB application, or KMPC8349EVVAGDB equivalent, key selection considerations include its 667-MHz e300 core performance, dual TSEC gigabit Ethernet compliance with IEEE 802.3z/802.3ab, DDR2-400 support with ECC, PCI 2.3-compliant dual interfaces, and hardware-accelerated IPSec/SSL offload capability.

Technical Context

The KMPC8349EVVAGDB implements a superscalar Power Architecture® e300 core with 32-Kbyte L1 instruction and data caches, lockable cache segments, and dynamic power management. Its coherent system bus interconnects dual TSECs, DDR/DDR2 memory controller, PCI1/PCI2 bridges, security engine, USB 2.0 dual-role controller, and multiple peripheral interfaces including DUART, I²C, SPI, and GPIO.

It integrates a four-channel crypto engine with dedicated execution units for AES (128/192/256-bit), DES/3DES, SHA-1/224/256, MD5, RSA up to 2048-bit, and ARC4, enabling full-line-rate IPSec processing. Clocking supports flexible PLL/DLL configuration with programmable dividers, and reset sequencing mandates PORESET assertion before I/O supply stabilization to prevent contention.

Key Specifications

Pinout & Package

KMPC8349EVVAGDB is housed in a 689-pin TBGA (Thin Ball Grid Array) package with 1.0 mm ball pitch, designed for high-density PCB layouts and thermal dissipation via center thermal pad. Pin assignments follow Freescale's MPC8349EAEC Rev. 13 specification, with dedicated banks for DDR2 I/O (GVDD=1.8 V), TSEC (LVDD=2.5/3.3 V), PCI (OVDD=3.3 V), and core logic (VDD=1.3 V).

Key Features

Applications

Equivalent & Alternatives

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

Compared with KMPC8349EVVAGDB, MPC8347EVVAGDB trades DDR2 and crypto depth for lower cost and power, while MPC8377ERVAGDB extends performance and I/O with PCIe/SATA at the expense of compatibility and footprint change.

Availability

KMPC8349EVVAGDB is available at Aetrix Electronics and suitable for enterprise routing, industrial secure gateways, and network-attached storage applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.

Supply support for KMPC8349EVVAGDB 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 since 2015) is a fabless semiconductor company specializing in embedded processors, analog, and connectivity solutions for automotive, industrial, and networking markets.

KMPC8349EVVAGDB belongs to the PowerQUICC II Pro family - designed specifically for cost-optimized, highly integrated communications processors targeting wireline infrastructure, secure edge devices, and Linux-capable embedded networking equipment.

FAQ

What is the maximum DDR2 data rate supported by KMPC8349EVVAGDB?

KMPC8349EVVAGDB supports DDR2-400 operation, delivering up to 6.4 GB/s peak bandwidth on its 64-bit interface. This is achieved with a 200 MHz clock (double-data-rate), and requires GVDD = 1.8 V ± 90 mV, MVREF = 0.5 × GVDD, and proper board-level termination matching per JEDEC DDR2 specifications. The controller supports programmable CAS latency, tRCD, and tRP timing parameters.

Does KMPC8349EVVAGDB support booting from NAND flash?

Yes, KMPC8349EVVAGDB supports NAND flash boot through software-controlled GPIO-driven NAND interface, as documented in the MPC8349EA Reference Manual. While the Local Bus Controller natively supports NOR flash boot, NAND boot requires custom boot ROM code that initializes GPIOs to emulate NAND command/address/data handshaking - a method validated in Freescale reference designs like the MPC8349E-RDK.

What are the power sequencing requirements for KMPC8349EVVAGDB?

KMPC8349EVVAGDB requires VDD (core) to be applied before GVDD, LVDD, and OVDD to prevent I/O contention and current spikes up to 5 A. Specifically, VDD must reach 90% of nominal (1.3 V) before any I/O supply exceeds 0.7 V. PORESET must be asserted during ramp-up and held for ≥32 CLKIN cycles after clocks stabilize. No sequencing order is required among GVDD, LVDD, and OVDD themselves.

Can KMPC8349EVVAGDB operate as both USB host and device simultaneously?

No - KMPC8349EVVAGDB contains two separate USB controllers: USB0 is a dual-role OTG controller (host or device), while USB1 is a dedicated EHCI-compliant host controller. They cannot operate in opposing roles concurrently on the same physical port. However, USB0 can serve as a device (e.g., CDC ACM modem) while USB1 hosts a peripheral (e.g., USB-to-serial converter), enabling true concurrent host/device functionality across distinct ports.

Is KMPC8349EVVAGDB pin-compatible with other MPC8349x variants?

Yes, KMPC8349EVVAGDB shares identical 689-pin TBGA mechanical and electrical pinout with all MPC8349E/A/B silicon revisions (Rev. 3.x and later), including MPC8349EVRAGDB and MPC8349EVVAGDB. Pin compatibility covers all signal names, voltage domains, and power/ground ball assignments - enabling drop-in replacement within the same speed grade and feature set, subject to correct configuration strap settings.