NXP Semiconductors KMPC8271VRTIEA

Overview

KMPC8271VRTIEA from NXP Semiconductors (formerly Freescale) is a 32-bit Power Architecture® communications processor SoC featuring a dual-issue G2_LE core, integrated Communications Processor Module (CPM), and 2× Fast Communication Controllers (FCCs) supporting 10/100-Mbps Ethernet via MII/RMII. It operates at up to 400 MHz core frequency, includes 16 KB instruction and 16 KB data caches, and supports PCI 2.2-compliant 32-bit/66 MHz bus interface - deployed in carrier-grade access gateways and industrial protocol converters.

For engineers reviewing the KMPC8271VRTIEA datasheet, KMPC8271VRTIEA pinout, KMPC8271VRTIEA application, or KMPC8271VRTIEA equivalent, key selection considerations include its 516-pin PBGA VR package, absence of integrated Security Engine (SEC), UTOPIA II support (1× port), dual TDM interfaces, and USB 2.0 full/low-speed controller - all critical for deterministic real-time packet processing in telecom edge infrastructure.

Technical Context

The KMPC8271VRTIEA implements a split-architecture design: the G2_LE core handles high-level protocol stack execution and memory management, while the CPM offloads time-critical serial communications tasks including HDLC, UART, and transparent channel handling across three SCCs and two SMCs. Its clocking system uses independent PLLs for core and CPM domains, enabling asynchronous operation at optimized frequencies (e.g., 400 MHz core / 200 MHz CPM).

It integrates a 60x bus interface with 64-bit data width and burst transfer capability, coupled with an on-chip 60x-to-PCI bridge supporting both host and peripheral modes. Memory subsystem includes an eight-bank controller supporting SDRAM, SRAM, Flash, and EPROM with programmable bank sizing and byte-write enables - essential for flexible boot and runtime memory mapping in embedded networking systems.

Key Specifications

Pinout & Package

KMPC8271VRTIEA is housed in a 516-ball plastic ball grid array (PBGA) package with VR designation, measuring 27 mm × 27 mm, 1.27 mm ball pitch, and JEDEC MO-205AC compliant footprint. The package supports separate 1.5 V core (VDD/VCCSYN) and 3.3 V I/O (VDDH) supplies, with dedicated power/ground ball allocation per functional block.

Key Features

Applications

Equivalent & Alternatives

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

Compared with KMPC8271VRTIEA, MPC8247VRTIEA removes UTOPIA support for cost-sensitive serial-only applications, while MPC8272VRTIEA adds hardware security acceleration at identical footprint - enabling secure-by-design deployments without PCB redesign.

Availability

KMPC8271VRTIEA is available at Aetrix Electronics and suitable for DSLAM line cards, industrial protocol gateways, carrier VoIP gateways, and secure RTUs requiring stable component supply across extended product lifecycles.

Supply support for KMPC8271VRTIEA 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 IoT markets, with roots in Philips and Freescale.

KMPC8271VRTIEA belongs to the PowerQUICC II family - designed specifically for embedded communications infrastructure requiring deterministic real-time processing, multi-protocol serial I/O, and PCI expandability without external co-processors.

FAQ

Does KMPC8271VRTIEA include an integrated Security Engine (SEC)?

No, KMPC8271VRTIEA does not include an integrated Security Engine. Unlike the MPC8272VRTIEA and MPC8248VRTIEA variants, the KMPC8271VRTIEA omits the SEC block that accelerates DES, 3DES, AES, SHA-1, and MD-5 operations. This omission reduces die area and power consumption, making KMPC8271VRTIEA appropriate for non-encrypted data paths where cryptographic functions are handled externally or omitted entirely.

What is the maximum supported core clock frequency for KMPC8271VRTIEA?

KMPC8271VRTIEA supports a maximum core clock frequency of 400 MHz, achieved using an internal 8:1 core/bus clock multiplier with a 50 MHz reference clock input. This frequency is validated across the full industrial temperature range (–40°C to +105°C junction) and requires proper thermal management per the 27°C/W RθJA specification under natural convection.

Which serial protocols are supported by the SCCs in KMPC8271VRTIEA?

KMPC8271VRTIEA includes three Serial Communications Controllers (SCCs) supporting Ethernet/IEEE 802.3, HDLC/SDLC, UART, synchronous UART, Binary Synchronous (BiSync), transparent mode, and QUICC Multichannel Controller (QMC) with up to 64 channels. SCC3 operates in NMSI mode only when USB is disabled, per hardware specification constraints.

Is KMPC8271VRTIEA pin-compatible with MPC8272VRTIEA?

Yes, KMPC8271VRTIEA is pin-compatible with MPC8272VRTIEA in the VR package - both use identical 516-ball PBGA footprints, power pin assignments, and signal ballouts. The primary functional difference is the presence of the Security Engine in MPC8272VRTIEA; all other I/O, memory, and peripheral signals map identically, enabling drop-in replacement where encryption is not required.

What memory types does the KMPC8271VRTIEA memory controller support?

KMPC8271VRTIEA's eight-bank memory controller supports SRAM, page-mode SDRAM, DRAM, EPROM, and Flash memory without external glue logic. It provides byte write enables, 32-bit address decoding with programmable bank sizes, and dedicated SDRAM interface logic - enabling direct connection to 64-Mbit SDRAM devices operating at 100 MHz with 3-3-3 timing.