NXP Semiconductors T2081NXN8PTB

Overview

T2081NXN8PTB from NXP is a 28 nm QorIQ communications processor featuring four dual-threaded 64-bit e6500 Power Architecture® cores running at up to 1.8 GHz, integrated DPAA for packet processing acceleration, and a 2 MB shared L2 cache. It delivers up to 7.2 DMIPS/MHz aggregate performance and supports mixed control/data plane workloads in enterprise switches, wireless infrastructure control cards, and industrial SBCs.

For engineers reviewing the T2081NXN8PTB datasheet, T2081NXN8PTB pinout, T2081NXN8PTB application, or T2081NXN8PTB equivalent, key selection criteria include its 780-pin 23×23 mm package, 1x PCIe Gen3 + 3x PCIe Gen2 interface support, 7× 1 Gb/s MACs with SGMII, and hardware-assisted virtualization for partitioned control/data plane deployment.

Technical Context

The T2081NXN8PTB implements a hierarchical CoreNet interconnect fabric enabling coherent and non-coherent transactions between CPU cores, accelerators, and I/O endpoints with bandwidth allocation and prioritization. Its DPAA subsystem includes FMAN (packet parsing/classification), QMAN (224-queue scheduling), BMAN (64 buffer pools), SEC (cryptographic acceleration to 10 Gb/s), and DCE (compression/decompression up to 17.5 Gb/s).

It integrates a 64-bit DDR3/3L memory controller supporting up to 2133 MT/s with 72-bit width including ECC, a 512 KB platform cache with prefetch engine, and PAMU v2 for I/O virtualization with DMA memory protection across guest environments.

Key Specifications

Pinout & Package

Package: 23 mm × 23 mm, 780-ball PBGA, 0.8 mm pitch, RoHS-compliant, thermal lid.

Key Features

Applications

Equivalent & Alternatives

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

Compared with T2080NXN8PTB, T2081NXN8PTB trades SerDes lanes, SATA, and SRIO for smaller footprint and pin compatibility with T1042; compared with T1042NXN8PTB, it delivers 2.6× higher DMIPS/MHz, DPAA offload, and hardware virtualization-enabling consolidation of previously separate control and data plane functions.

Availability

T2081NXN8PTB is available at Aetrix Electronics and suitable for enterprise switching, wireless infrastructure control cards, and industrial SBCs requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for T2081NXN8PTB 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and communications markets.

The QorIQ T series targets mid-range communications infrastructure with scalable multicore Power Architecture® processors optimized for control/data plane convergence, hardware acceleration, and virtualized deployment in carrier-grade equipment.

FAQ

What is the maximum DDR3/3L memory speed supported by the T2081NXN8PTB?

The T2081NXN8PTB supports DDR3/3L SDRAM up to 2133 MT/s with a 64-bit bus width and 72-bit ECC capability. This enables high-bandwidth, fault-tolerant memory subsystems essential for telecom and enterprise networking applications where packet buffering and table lookups demand sustained throughput. The memory controller includes on-die termination and programmable timing parameters for robust signal integrity across varying board layouts.

Does the T2081NXN8PTB include hardware cryptographic acceleration?

Yes, the T2081NXN8PTB integrates the Security Engine (SEC) 5.2, providing hardware-accelerated cryptographic operations including AES-GCM, SHA-256, RSA-2048, and ECC at up to 10 Gb/s. This offloads encryption/decryption from the e6500 cores, enabling line-rate IPsec or TLS processing in firewalls and secure gateways without degrading control plane responsiveness.

Is the T2081NXN8PTB pin-compatible with any other NXP processors?

Yes, the T2081NXN8PTB is pin-compatible with the quad-core T1042 processor. This allows customers to reuse existing PCB designs and migrate from legacy e5500-based platforms to the more powerful e6500 architecture without layout changes, preserving investment in mechanical enclosures, power delivery, and thermal design while gaining DPAA acceleration and virtualization support.

What virtualization technologies does the T2081NXN8PTB support?

The T2081NXN8PTB supports hardware-assisted virtualization including a hypervisor privilege level, logical-to-real address translation, PAMU v2 for I/O MMU protection, SR-IOV for PCIe device virtualization, and DPAA-level virtualization for Ethernet MACs and accelerators. These features enable concurrent deployment of Linux containers, KVM guests, and real-time OS partitions with strict resource isolation and DMA security boundaries.

How many 10 Gb/s Ethernet interfaces does the T2081NXN8PTB support?

The T2081NXN8PTB supports up to two 10 Gb/s Ethernet MACs via XFI/KR SerDes lanes. These are implemented within the integrated FMAN and can be configured for back-to-back or uplink roles in switches and routers. Unlike the T2080, the T2081 omits HiGig and XAUI support, limiting 10 Gb/s connectivity to XFI-only operation.