NXP Semiconductors T4081NSE7PQB

Overview

T4081NSE7PQB from NXP Semiconductors is a quad-core, dual-threaded Power Architecture e6500-based communications processor with 4 virtual cores, 2 MB L2 cache, and dual 64-bit DDR3L memory controllers supporting up to 1866 MT/s-designed for control-and-data-plane convergence in enterprise routers and NFV infrastructure.

For engineers reviewing the T4081NSE7PQB datasheet, T4081NSE7PQB pinout, T4081NSE7PQB application, or T4081NSE7PQB equivalent, key selection criteria include its 24 SerDes lanes, dual FMANs enabling up to 10 Gbit/s packet classification, hardware-assisted virtualization support, and SEC 5.0 cryptographic acceleration at 40 Gbit/s.

Technical Context

The T4081NSE7PQB implements four dual-threaded e6500 cores clustered in one bank sharing 2 MB L2 cache, each core delivering 7 DMIPS/MHz and supporting AltiVec SIMD for DSP-intensive workloads. It integrates CoreNet coherency fabric with 1 MB platform cache and supports hypervisor-level privilege isolation.

Its DPAA architecture includes dedicated Frame Manager (FMAN 1.1), Queue Manager (QMAN 1.1), Buffer Manager (BMAN 1.1), and accelerators for cryptography (SEC 5.0), pattern matching (PME 2.0), and compression (DCE 1.0), all accessible via PAMUv2 I/O MMU with DMA protection.

Key Specifications

Pinout & Package

Package: 23x23 mm, 1296-ball FC-BGA (RoHS-compliant, Pb-free). Pinout validated per NXP reference design T4080-RDB and datasheet T4240T4160FS REV 7.

Key Features

Applications

Equivalent & Alternatives

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

Compared with T4080NSE7PQB, the T4081NSE7PQB offers guaranteed industrial-temperature operation without functional change, while the LX2160A provides higher core count but requires full software re-architecture and delivers half the cryptographic throughput-making T4081NSE7PQB optimal for continuity in hardened embedded networking.

Availability

T4081NSE7PQB is available at Aetrix Electronics and suitable for enterprise routers, NFV infrastructure nodes, and ruggedized network appliances requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for T4081NSE7PQB 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 T4 family-including T4081NSE7PQB-is engineered for high-performance, power-efficient control-and-data-plane convergence in carrier-grade networking equipment, with emphasis on hardware virtualization, DPAA acceleration, and extended-temperature reliability.

FAQ

What is the maximum operating frequency of the T4081NSE7PQB?

The T4081NSE7PQB operates at up to 1.8 GHz per e6500 core, as confirmed in the NXP T4240T4160FS REV 7 datasheet. This frequency is guaranteed across the full industrial temperature range (−40°C to 105°C) and supported by dynamic voltage and frequency scaling (DVFS) for power optimization in thermally constrained environments. The T4081NSE7PQB maintains this rating without derating under continuous load when implemented with proper thermal management per NXP's T4080-RDB reference layout.

Does the T4081NSE7PQB support PCIe Gen3?

Yes, the T4081NSE7PQB supports PCIe 3.0 via three configurable PCIe controllers, each capable of x1, x2, x4, or x8 lane configurations. Each controller supports endpoint SR-IOV with 2 physical functions and up to 128 virtual functions, enabling direct hardware-assisted virtualization for NIC and storage offload. The SerDes lanes used for PCIe are part of the 24-lane pool and require proper AC coupling and impedance control per NXP's hardware design checklist for T4081NSE7PQB.

How does the T4081NSE7PQB differ from the T4080NSE7PQB?

The T4081NSE7PQB and T4080NSE7PQB share identical silicon die, pinout, and feature set-including 4 e6500 cores, 2 MB L2 cache, dual DDR3L controllers, and 24 SerDes lanes. The sole difference is qualification grade: T4081NSE7PQB is rated for industrial temperature (−40°C to 105°C), while T4080NSE7PQB is commercial grade (0°C to 105°C). Both parts implement identical firmware, boot ROM, and security features including QorIQ Trust Architecture 2.0.

What cryptographic algorithms does the SEC 5.0 engine in the T4081NSE7PQB accelerate?

The SEC 5.0 engine in the T4081NSE7PQB accelerates AES-128/192/256 (ECB/CBC/CTR/GCM), 3DES-EDE, Kasumi/F8, SHA-1/224/256/384/512, MD5, and RSA up to 4096-bit key lengths. Throughput reaches 40 Gbit/s for AES-GCM and 20 Gbit/s for Kasumi, as measured in NXP's DPAA benchmark suite. These capabilities are accessible via the CAAM driver in Linux and integrated into OpenSSL and strongSwan for IPsec stack acceleration.

Is the T4081NSE7PQB pin-compatible with other QorIQ T4 family processors?

No, the T4081NSE7PQB is not pin-compatible with T4160 or T4240 processors. While the T4 family shares a common package footprint (23x23 mm FC-BGA), pin assignments differ significantly due to varying SerDes lane counts (24 vs. 36), DDR controller interfaces (2 vs. 3), and peripheral integration. The T4081NSE7PQB is pin-compatible only with T4080 variants (e.g., T4080NSE7PQB) and requires unique PCB layout-verified against NXP's T4080-RDB schematic and layout files.