NXP Semiconductors KMPC8272CVRTIEA

Overview

KMPC8272CVRTIEA from Freescale Semiconductor is a PowerQUICC II family integrated communications processor featuring a 32-bit Power Architecture® G2_LE core (266–400 MHz), dual 16 KB instruction/data caches, integrated security engine (SEC) supporting AES/DES/SHA-1, dual Fast Communication Controllers (FCCs) for 10/100 Ethernet, and PCI 2.2-compliant 32-bit/66 MHz bridge - deployed in carrier-grade edge routers and secure industrial gateways.

For engineers reviewing the KMPC8272CVRTIEA datasheet, KMPC8272CVRTIEA pinout, KMPC8272CVRTIEA application, or KMPC8272CVRTIEA equivalent, key selection criteria include SEC hardware acceleration support, dual-FCC Ethernet capability, VR-package thermal performance (RθJA = 27°C/W), and compatibility with 3.3 V I/O and 1.5 V core supply rails.

Technical Context

The KMPC8272CVRTIEA integrates a dual-issue G2_LE core with separate MMUs and physically addressed, four-way set-associative caches, plus a modified Communications Processor Module (CPM) executing microcode for protocol offload across SCCs, FCCs, and SMCs. Its clock architecture employs independent PLLs for core and CPM domains, enabling frequency ratios up to 8:1 for power/performance tuning.

It delivers hardware-accelerated cryptographic operations via an integrated Security Engine (SEC) supporting DES, 3DES, AES, SHA-1, MD-5, RC-4, PKEU, and RNG - accessible through dedicated DMA channels and on-chip dual-port RAM. The device supports UTOPIA II (8-bit, 31 MHz) for ATM SAR and includes two TDM interfaces with SI RAM for voice/data multiplexing.

Key Specifications

Pinout & Package

KMPC8272CVRTIEA is housed in a 516-ball plastic ball grid array (PBGA) package designated VR - lead-free, RoHS-compliant, with 1.0 mm ball pitch and thermal pad exposed on underside for board-level heat transfer. Package dimensions are 27 mm × 27 mm × 1.7 mm (height).

Key Features

Applications

Equivalent & Alternatives

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

Compared with KMPC8272CVRTIEA, MPC8248VR trades UTOPIA II for dual USB while maintaining SEC and dual FCCs, whereas MPC8271VR removes both SEC and one FCC to lower cost - making KMPC8272CVRTIEA the optimal balance of security, ATM, and Ethernet integration for carrier-edge use cases.

Availability

KMPC8272CVRTIEA is available at Aetrix Electronics and suitable for secure industrial firewalls, carrier-grade DSLAM edge routers, telecom base station controllers, and ruggedized vehicle telematics gateways requiring stable component supply across extended product lifecycles.

Supply support for KMPC8272CVRTIEA 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.

KMPC8272CVRTIEA belongs to the PowerQUICC II family - designed specifically for integrated communications processing in space-constrained, thermally demanding edge infrastructure where hardware offload of networking, security, and telephony protocols is critical.

FAQ

What is the maximum operating junction temperature for KMPC8272CVRTIEA?

The KMPC8272CVRTIEA has a maximum rated junction temperature (Tj) of 105°C under recommended operating conditions. This limit applies to standard commercial temperature grade parts; extended temperature variants support –40°C to 105°C ambient. Thermal design must ensure TJ does not exceed this value using RθJA = 27°C/W (natural convection, single-layer board) or RθJB = 11°C/W (board-conducted cooling) models per the MPC8272EC Rev. 3 specification.

Does KMPC8272CVRTIEA support PCIe or only PCI?

KMPC8272CVRTIEA supports only PCI Specification Revision 2.2 - not PCIe. Its 32-bit, 66 MHz, 3.3 V PCI bus interface includes host bridge and peripheral modes, four DMA channels, and hot-swap compliance per PICMG 2.1. No PCIe physical layer, transaction layer, or configuration space is implemented; migration to PCIe requires architectural redesign with newer SoCs such as QorIQ series.

How is the Security Engine (SEC) in KMPC8272CVRTIEA accessed by software?

The KMPC8272CVRTIEA Security Engine is accessed via memory-mapped registers in the internal address space (starting at 0xE000_0000), using dedicated DMA channels to move data between external memory and SEC FIFOs. Software initializes SEC context descriptors, loads keys into SEC key memory, and triggers operations via command ring buffers - all coordinated through the CPM microcode and G2_LE core interrupt controller.

Can KMPC8272CVRTIEA operate with a 25 MHz crystal input?

Yes - KMPC8272CVRTIEA accepts CLKIN frequencies from 33 MHz to 100 MHz per specification, but a 25 MHz crystal can be used with external PLL multiplication (e.g., using a programmable clock generator) to meet minimum 33 MHz requirement. Direct 25 MHz input violates AC timing specs and may cause unstable core/CPM clock generation; Freescale recommends ≥33 MHz fundamental or harmonically multiplied reference.

What debug interfaces are available on KMPC8272CVRTIEA?

KMPC8272CVRTIEA provides IEEE 1149.1 JTAG test access port (TAP) for boundary scan and core debugging, plus COP (Common On-chip Processor) test interface for microcode-level CPM diagnostics. Debug visibility includes real-time trace of CPM instructions, eight CPM trap registers, and hardware bus monitor - all accessible via standard JTAG emulators compatible with Power Architecture® toolchains.