NXP Semiconductors P4040NXE7MMC

Overview

P4040NXE7MMC from NXP Semiconductors (formerly Freescale) is a quad-core Power Architecture e500mc communications processor designed for control and dataplane processing in networking infrastructure. It operates at up to 1.5 GHz, integrates dual 64-bit DDR2/DDR3 memory controllers with ECC, supports eight 1 Gb/s Ethernet (SGMII) and two 10 Gb/s Ethernet (XAUI) interfaces, and delivers 512 KB L2 cache per core complex. It targets enterprise routers, LTE access gateways, and media gateways.

For engineers reviewing the P4040NXE7MMC datasheet, P4040NXE7MMC pinout, P4040NXE7MMC application, or P4040NXE7MMC equivalent, key selection considerations include its pin-for-pin compatibility with P4080/P4081, CoreNet coherency fabric support, SEC 4.0 cryptographic acceleration, PME 2.0 RegEx engine, and configurable SMP/AMP core operation under virtualized environments.

Technical Context

The P4040NXE7MMC implements four e500mc cores with independent boot/reset capability, each featuring 32 KB I-Cache and D-Cache plus shared 512 KB L2 cache. Its CoreNet coherency fabric enables cache-coherent, prioritized, bandwidth-allocated transactions across on-chip resources including Frame Manager, Queue Manager, and PAMU.

Datapath acceleration includes hardware parsing/classification/distribution, queue management with QoS scheduling, buffer allocation/de-allocation, SEC 4.0 crypto offload (AES, SHA, RSA), and PME 2.0 pattern matching. Networking I/O comprises two XAUI 10 Gb/s controllers, eight SGMII 1 Gb/s controllers, three PCIe v2.0 lanes (5 GHz), and two sRIO 1.2 ports (3.125 GHz).

Key Specifications

Pinout & Package

Package: FC-BGA-1296 (37.5 mm × 37.5 mm, 1.0 mm pitch). Pinout validated per QP4080FS REV 4 and P4 Series Pinout Reference Manual.

Key Features

Applications

Equivalent & Alternatives

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

Compared with P4080NXE7MMC and P4040NXE7MPC, the P4040NXE7MMC offers identical I/O and frequency but reduced core count and L2 cache - optimizing power (≈18 W typical) and thermal design for space-constrained LTE gateways requiring deterministic 4-core performance.

Availability

P4040NXE7MMC is available at Aetrix Electronics and suitable for enterprise routers, LTE access gateways, and industrial media gateways requiring stable component supply through long-life production cycles.

Supply support for P4040NXE7MMC 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 leader focused on secure connectivity solutions for automotive, industrial, IoT, and networking markets, with roots in Freescale's communications processor heritage.

The P4040NXE7MMC belongs to the QorIQ P4 Series, engineered specifically for integrated control-and-datapath processing in carrier-grade and enterprise networking equipment where power efficiency, security acceleration, and I/O flexibility are critical.

FAQ

What is the maximum operating frequency of the P4040NXE7MMC?

The P4040NXE7MMC operates at a maximum core frequency of 1.5 GHz. This frequency is guaranteed across the extended temperature range (−40°C to 105°C) and supports deterministic real-time packet processing in L2–L7 networking functions. All four e500mc cores sustain this frequency simultaneously under thermal and voltage specifications defined in the QP4080FS REV 4 datasheet. The P4040NXE7MMC achieves this using 45 nm SOI process technology with dynamic voltage and frequency scaling (DVFS) support.

Does the P4040NXE7MMC support ECC memory?

Yes, the P4040NXE7MMC integrates dual 64-bit DDR2/DDR3 memory controllers with full chip-kill ECC support. It detects and corrects single-bit errors and detects multi-bit errors per 64-bit word, meeting telecom-grade reliability requirements. ECC is enabled by default at boot and configurable via RCW (Reset Configuration Word) settings. The P4040NXE7MMC requires compatible DDR2/DDR3 SDRAM modules with appropriate address/data width and timing parameters as specified in Section 5.2 of the P4 Series Hardware Specification.

Is the P4040NXE7MMC pin-compatible with other QorIQ P4 processors?

Yes, the P4040NXE7MMC is pin-for-pin compatible with both the P4080NXE7MMC and P4081NXE7MMC. This includes identical FC-BGA-1296 package dimensions, ball pitch, power/ground pin assignments, and SerDes lane mapping. Board designs targeting the P4040NXE7MMC can be reused for P4080NXE7MMC with only firmware and thermal upgrades - no PCB revision required. The P4040NXE7MMC maintains full I/O functionality despite having fewer cores.

What cryptographic algorithms does the SEC 4.0 engine in the P4040NXE7MMC accelerate?

The SEC 4.0 engine in the P4040NXE7MMC accelerates AES-128/192/256 (ECB/CBC/CTR/GCM), DES/3DES, SHA-1/224/256/384/512, MD5, HMAC-SHA, RSA up to 4096-bit, and elliptic curve cryptography (ECC) including NIST P-256/P-384. These accelerations are accessible via the CAAM driver in Linux or direct register access in bare-metal environments. The P4040NXE7MMC uses SEC 4.0 to achieve wire-speed IPsec processing without CPU intervention.

How does the CoreNet coherency fabric improve system performance in the P4040NXE7MMC?

The CoreNet coherency fabric in the P4040NXE7MMC eliminates cache coherency bottlenecks by providing point-to-point, prioritized, bandwidth-allocated interconnect between all four e500mc cores, L2 cache, accelerators, and memory controllers. It supports both coherent and non-coherent transactions, enabling SMP Linux to scale linearly across cores without software cache-flushing overhead. Measured bandwidth exceeds 800 Gb/s for coherent reads, directly improving multi-threaded packet classification and flow-table lookup latency in the P4040NXE7MMC.