NXP Semiconductors T4161NSE7PQB

Overview

T4161NSE7PQB from NXP is a multicore communications processor based on the Power Architecture e6500 core, delivering 16 virtual threads across 8 physical dual-threaded cores at up to 1.8 GHz, with 4 MB L2 cache, dual 64-bit DDR3L memory controllers (1866 MT/s), and integrated DPAA accelerators for packet classification, cryptography (SEC 5.0), and pattern matching (PME 2.0). It targets high-throughput control-and-data-plane networking appliances.

For engineers reviewing the T4161NSE7PQB datasheet, T4161NSE7PQB pinout, T4161NSE7PQB application, or T4161NSE7PQB equivalent, key selection criteria include virtual core count, SerDes lane count (24 lanes), 10 GbE MAC support (2×), PCIe 3.0 controller count (3×), and hardware virtualization support via hypervisor privilege level and PAMUv2 I/O MMU.

Technical Context

The T4161NSE7PQB implements eight e6500 cores clustered in two banks of four, each sharing 2 MB L2 cache and supporting AltiVec SIMD for DSP-intensive workloads. It integrates CoreNet coherency fabric with 1 MB platform cache and supports hierarchical interconnect prioritization and bandwidth allocation across endpoints.

Its DPAA infrastructure includes dual Frame Managers (FMAN 1.1), QMAN 1.1 for multilevel queue scheduling, BMAN 1.1 for buffer pool management, and hardware accelerators including SEC 5.0 (40 Gbit/s crypto), PME 2.0 (10 Gbit/s RegEx), and DCE 1.0 (20 Gbit/s compression/decompression).

Key Specifications

Pinout & Package

T4161NSE7PQB is housed in a 27 mm × 27 mm, 1296-pin FC-BGA package with 1.0 mm ball pitch, designed for high-density routing and thermal dissipation in carrier-grade embedded systems.

Key Features

Applications

Equivalent & Alternatives

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

Compared with T4240NSE7PQB and T4080NSE7PQB, the T4161NSE7PQB offers balanced virtual thread count (16), dual DDR3L bandwidth, and full DPAA accelerator set-making it optimal for mid-tier service provider and enterprise networking where scalability and feature completeness must align with thermal and layout constraints.

Availability

T4161NSE7PQB is available at Aetrix Electronics and suitable for service provider edge routing, enterprise UTM appliances, data center NFV hosts, and ruggedized industrial gateways requiring stable component supply and long-term lifecycle support.

Supply support for T4161NSE7PQB 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 specializing in secure connectivity solutions for automotive, industrial, and communications markets.

The T4 family-including T4161NSE7PQB-is designed as high-performance, power-efficient multicore communications processors targeting combined control-and-data-plane processing in carrier-grade and enterprise networking equipment.

FAQ

What is the maximum operating frequency of the T4161NSE7PQB?

The T4161NSE7PQB operates at up to 1.8 GHz per e6500 core, with dual-threaded execution enabled across all 8 physical cores. This frequency is validated under specified thermal and voltage conditions per NXP's T4240/T4160 datasheet revision 7. The T4161NSE7PQB maintains consistent timing margins and cache coherency behavior at this speed, enabling deterministic real-time response in control-plane tasks while sustaining high data-path throughput.

Does the T4161NSE7PQB support DDR4 memory?

No, the T4161NSE7PQB supports only DDR3 and DDR3L SDRAM up to 1866 MT/s, with built-in ECC and interleaving. It does not include DDR4 PHY or controller logic. DDR4 compatibility is absent from the official NXP T4240/T4160FS documentation, and no firmware or hardware workaround enables DDR4 operation. Systems requiring DDR4 must consider newer NXP Layerscape or third-party alternatives.

How many PCIe controllers does the T4161NSE7PQB integrate?

The T4161NSE7PQB integrates three PCIe 3.0 controllers, each configurable as root complex or endpoint, supporting SR-IOV with up to 2 physical functions and 128 virtual functions per controller. This matches the T4160 variant specification confirmed in NXP document T4240T4160FS REV 7. All three controllers share reference clocking resources and comply with PCIe Base Specification 3.0, including ASPM and AER features.

Is the T4161NSE7PQB pin-compatible with the T4240NSE7PQB?

Yes, the T4161NSE7PQB is pin-compatible with the T4240NSE7PQB and T4080NSE7PQB within the same 1296-ball FC-BGA package footprint. NXP explicitly states "a 3x performance scaling factor within a pin-compatible package" for the T4 family. This allows drop-in replacement in compatible PCB designs, though thermal and power delivery must be revalidated due to differing core counts and SerDes lane usage.

What virtualization technologies are supported by the T4161NSE7PQB?

The T4161NSE7PQB supports hardware-assisted virtualization including hypervisor privilege level (HV), logical-to-real address translation (LRAT), PAMUv2 I/O MMU, vMPIC interrupt virtualization, and vDMA user-level DMA. It runs KVM, Linux containers, and commercial hypervisors from Enea, Green Hills, Mentor Graphics, and Wind River-all validated on the T4160 platform. These capabilities are documented in the "VIRTUALIZATION" section of NXP's T4240T4160FS REV 7.