NXP Semiconductors T2081NXN8MQLB

Overview

T2081NXN8MQLB from NXP is a 28 nm QorIQ communications processor based on four dual-threaded 64-bit e6500 Power Architecture cores, operating up to 1.8 GHz with 2 MB shared L2 cache, integrated DPAA for packet processing, and hardware-assisted virtualization. It serves as a control/data plane processor in mid-range networking equipment including enterprise switches, LTE base station control cards, and industrial SBCs.

For engineers reviewing the T2081NXN8MQLB datasheet, T2081NXN8MQLB pinout, T2081NXN8MQLB application, or T2081NXN8MQLB equivalent, key selection considerations include its 780-pin 23×23 mm package, 1× PCIe Gen3 + 3× PCIe Gen2 interface support, 7× 1 Gb/s MACs, absence of SATA and SRIO, and pin compatibility with T1042 for board reuse.

Technical Context

The T2081NXN8MQLB implements a hierarchical CoreNet interconnect fabric supporting coherent and non-coherent transactions with bandwidth allocation, paired with a 64-bit DDR3/3L memory controller supporting up to 2133 MT/s and 72-bit ECC width. 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 at 17.5 Gb/s).

Unlike the T2080, the T2081NXN8MQLB omits SATA 2.0 controllers, Serial RapidIO 2.1 ports, Aurora interface, and one 10 Gb/s MAC lane - reducing SerDes lanes from 16 to 8 and PCIe Gen3 controllers from two to one, while retaining full e6500 core functionality, AltiVec SIMD engines, and hypervisor-level virtualization support.

Key Specifications

Pinout & Package

23 mm × 23 mm, 780-ball fine-pitch BGA (0.8 mm pitch), RoHS-compliant, lead-free packaging with thermal lid. Pinout conforms to T1042 mechanical and electrical footprint for direct replacement in existing designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with T1042NXN8MQB, T2081NXN8MQLB delivers 2.2× higher DMIPS/core and integrated DPAA for line-rate packet processing; compared with T2080NXN8MQLB, it trades SerDes lanes and SATA for pin compatibility and lower power - making it optimal for space-constrained upgrades.

Availability

T2081NXN8MQLB is available at Aetrix Electronics and suitable for enterprise switching, LTE infrastructure, industrial SBCs, and defense avionics requiring stable component supply and long-term lifecycle assurance.

Supply support for T2081NXN8MQLB 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 - including T2081NXN8MQLB - was designed specifically for mid-range communications infrastructure requiring integrated control/data plane processing, hardware-accelerated networking, and hardware-enforced virtualization in thermally constrained environments.

FAQ

What is the maximum DDR3/3L memory speed supported by T2081NXN8MQLB?

The T2081NXN8MQLB supports DDR3/3L memory speeds up to 2133 MT/s using its 64-bit memory controller with 72-bit ECC width. This enables high-bandwidth, error-corrected system memory operation essential for real-time packet buffering and multi-OS virtualization workloads. The controller complies with JEDEC DDR3L standards and supports both 1.35 V and 1.5 V memory modules. T2081NXN8MQLB achieves this speed with precise timing calibration and on-die termination control.

Does T2081NXN8MQLB support hardware virtualization, and what features are included?

Yes, T2081NXN8MQLB includes comprehensive hardware virtualization support: an extra hypervisor privilege level, logical-to-real address translation, PAMU v2 IOMMU for DMA memory protection, vMPIC for virtualized interrupt handling, and DPAA-level virtualization for Ethernet MACs and accelerators. These features allow safe, isolated execution of multiple guest OS instances - such as Linux for management and RTOS for real-time control - without software emulation overhead. T2081NXN8MQLB implements these capabilities directly in silicon per the QorIQ architecture specification.

Is T2081NXN8MQLB pin-compatible with any other NXP processors?

Yes, T2081NXN8MQLB is explicitly pin-compatible with the quad-core T1042 processor, sharing the same 780-ball BGA footprint, 0.8 mm pitch, and mechanical outline. This allows direct PCB reuse for customers upgrading from T1042-based designs. Electrical compatibility is maintained for power, clock, reset, and core interface signals; however, SerDes and peripheral pin functions differ and require firmware reconfiguration. T2081NXN8MQLB documentation confirms this compatibility in the T2080FS Rev 2 datasheet.

What networking accelerators are integrated into T2081NXN8MQLB?

T2081NXN8MQLB integrates the full QorIQ DPAA subsystem: FMAN for packet parsing and classification at up to 24 Gb/s, QMAN for queue management across 224 hardware queues, BMAN for buffer pool management with 64 pools, SEC for cryptographic acceleration up to 10 Gb/s (AES, SHA, RSA), and DCE for compression/decompression at 17.5 Gb/s. These accelerators operate independently of the e6500 cores and are accessible via memory-mapped registers. T2081NXN8MQLB does not include PME (pattern matching) or RMAN (RapidIO message manager), which are present only in T2080.

What is the thermal design power (TDP) rating for T2081NXN8MQLB?

The T2081NXN8MQLB has a typical thermal design power of 12 W at 1.8 GHz operation under full load, with a maximum junction temperature of 105°C. This TDP reflects operation with DDR3L memory, all seven 1 Gb/s MACs active, and DPAA accelerators engaged. Power consumption scales dynamically via state-retention power gating and DVFS. The 23×23 mm package uses a thermal lid to facilitate heatsink attachment, and NXP provides detailed thermal resistance values (θJA = 22°C/W, θJC = 0.5°C/W) in the T2081NXN8MQLB thermal design guide.