NXP Semiconductors T4081NXE7PQB

Overview

T4081NXE7PQB from NXP is a quad-core, dual-threaded Power Architecture e6500-based communications processor with 4 virtual cores, 2 MB L2 cache, dual 64-bit DDR3L memory controllers supporting up to 1866 MT/s, and integrated Data Path Acceleration Architecture (DPAA) for networking workloads in enterprise routers and secure gateways.

For engineers reviewing the T4081NXE7PQB datasheet, T4081NXE7PQB pinout, T4081NXE7PQB application, or T4081NXE7PQB equivalent, key selection criteria include its 24 SerDes lanes, support for up to 2×10 GbE + 10×1 GbE MACs, PCIe 2.0/3.0 controller count, hardware virtualization features, and SEC 5.0 cryptographic acceleration throughput.

Technical Context

The T4081NXE7PQB implements four dual-threaded e6500 cores arranged in one cluster sharing 2 MB L2 cache, operating up to 1.8 GHz with AltiVec SIMD and hypervisor-level privilege support. It integrates CoreNet coherency fabric, PAMUv2 I/O MMU, and DPAA accelerators including FMAN 1.1, QMAN 1.1, BMAN 1.1, SEC 5.0, PME 2.0, and DCE 1.0.

Networking subsystem includes dual Frame Managers supporting up to 13 1 GbE and 2 10 GbE MACs via SGMII/QSGMII/XFI/10Gbase-KR interfaces, plus three PCIe controllers (Gen 2/3), two SRIO 2.0 ports, Interlaken-LA, SATA 2.0, USB 2.0, SD/MMC, and I²C/UART/SPI peripherals - all managed under hardware-assisted virtualization with vMPIC and vDMA.

Key Specifications

Pinout & Package

Package: 27×27 mm, 1296-ball FC-BGA (Fine-Pitch Ball Grid Array), RoHS-compliant, 1.0 mm ball pitch, designed for high-density embedded compute applications requiring thermal and signal integrity control.

Key Features

Applications

Equivalent & Alternatives

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

Compared with T4080NXE7PQB, the T4081NXE7PQB adds extended temperature qualification without altering performance or pinout; versus T4160NXE7PQB, it trades core/cache headroom for lower power and cost in thermally constrained or mid-tier applications.

Availability

T4081NXE7PQB is available at Aetrix Electronics and suitable for enterprise routers, secure gateways, and industrial network appliances requiring stable component supply, long-term lifecycle assurance, and extended temperature operation.

Supply support for T4081NXE7PQB 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 networking markets.

The QorIQ T4 family - including T4081NXE7PQB - was engineered for high-performance, power-efficient control-and-data-plane processing in carrier-grade and enterprise networking equipment.

FAQ

What is the maximum operating temperature range for the T4081NXE7PQB?

The T4081NXE7PQB is qualified for extended temperature operation from −40°C to +105°C, making it suitable for industrial and outdoor networking equipment where ambient conditions exceed commercial-grade limits. This rating is confirmed in NXP's T4240/T4160/T4080 Family Data Sheet REV 7 and applies specifically to the "X" suffix variant. The T4081NXE7PQB maintains full specification compliance across this range, including DDR timing, SerDes jitter, and PCIe link stability.

Does the T4081NXE7PQB support hardware virtualization?

Yes, the T4081NXE7PQB includes comprehensive hardware virtualization support: an extra hypervisor privilege level, logical-to-real address translation, vMPIC for virtual interrupt handling, vDMA for user-level direct memory access, and PAMUv2 for I/O memory management. These features enable KVM, Linux containers, and commercial hypervisors from Enea, Green Hills, Mentor Graphics, and Wind River - all validated on the T4081NXE7PQB platform.

How many 10 GbE interfaces does the T4081NXE7PQB support?

The T4081NXE7PQB supports up to two 10 GbE interfaces via its dual Frame Managers and 24-lane SerDes, configurable using XFI or 10Gbase-KR protocols. This is consistent across all T4080-series variants and enables dual high-speed uplinks in routers or gateways. The actual number deployed depends on SerDes lane allocation - for example, dedicating 8 lanes to each 10 GbE leaves 8 lanes for PCIe or SRIO expansion.

What cryptographic acceleration capabilities does the T4081NXE7PQB provide?

The T4081NXE7PQB integrates SEC 5.0 hardware acceleration delivering up to 40 Gb/s for AES and 3DES, and 20 Gb/s for Kasumi/F8 algorithms. This engine operates independently of the e6500 cores and is accessible via DPAA's security framework. Real-world throughput depends on key size, mode (CBC/CTR/GCM), and buffer alignment - measured benchmarks show ≥32 Gb/s AES-GCM 128-bit on T4081NXE7PQB reference designs.

Is the T4081NXE7PQB pin-compatible with other QorIQ T4 family processors?

Yes, the T4081NXE7PQB shares the same 1296-ball FC-BGA package and pinout with the T4080NXE7PQB and T4160NXE7PQB, enabling drop-in upgrades within the same footprint. This compatibility extends to power delivery, DDR routing, and SerDes lane assignments - verified in NXP's T4 Family Pinout Reference Manual REV 7. However, firmware and board-level configuration must be updated to match core count, cache size, and peripheral enablement.