NXP Semiconductors MPC7410HX400LE

Overview

MPC7410HX400LE from Freescale Semiconductor is a 400 MHz PowerPC G4 RISC microprocessor implementing the full 32-bit PowerPC architecture with AltiVec™ SIMD engine, 32 KB L1 instruction and data caches, integrated L2 cache controller, and MPX bus interface - deployed in high-performance embedded computing, digital signal processing, and telecom infrastructure systems.

For engineers reviewing the MPC7410HX400LE datasheet, MPC7410HX400LE pinout, MPC7410HX400LE application, or MPC7410HX400LE equivalent, key selection considerations include its 400 MHz core frequency, 1.8 V core supply, 360-ball CBGA package, AltiVec acceleration capability, and support for 512 KB–2 MB external L2 SRAM configurations.

Technical Context

The MPC7410HX400LE implements a deeply pipelined, out-of-order execution core with dual fixed-point units (FXU1/FXU2), a three-stage floating-point unit supporting IEEE 754 single/double precision at 3-cycle latency, and a dedicated 128-bit AltiVec unit comprising permute and ALU subunits with 32×128-bit vector register file.

Its memory subsystem features nonblocking 32 KB eight-way set-associative L1 I/D caches, hardware-managed 128-entry ITLB/DTLB, configurable L2 interface supporting 32-/64-/128-byte line sizes, and a 64-bit MPX bus with selectable 1.8 V / 2.5 V / 3.3 V I/O voltage thresholds controlled by BVSEL/L2VSEL pins sampled at HRESET negation.

Key Specifications

Pinout & Package

Package: 360-ball Ceramic Ball Grid Array (CBGA), 27 mm × 27 mm, 1.27 mm pitch, RoHS-compliant lead-free C5 spheres. Thermal resistance: RθJA = 18°C/W (natural convection, 4-layer board).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar RISC microprocessor applications.

Compared with MPC7410HX400LE, the MPC7410HX450LE offers higher clock speed within identical thermal/power constraints, while the MPC7450MX500LE extends memory addressing and L2 scalability - both retain AltiVec, MPX bus, and JTAG compatibility but require validation of voltage regulator and heatsink margins.

Availability

MPC7410HX400LE is available at Aetrix Electronics and suitable for telecom infrastructure, industrial control, and avionics applications requiring stable component supply, long-lifecycle support, and traceable sourcing for legacy system maintenance.

Supply support for MPC7410HX400LE 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

Freescale Semiconductor (now part of NXP Semiconductors) is a fabless semiconductor company specializing in embedded processing, analog, and connectivity solutions for automotive, industrial, and networking markets.

The MPC7410HX400LE belongs to Freescale's PowerPC G4 family, designed specifically for high-performance embedded computing where AltiVec acceleration, deterministic real-time response, and scalable memory subsystems are critical.

FAQ

What is the maximum guaranteed operating frequency of the MPC7410HX400LE?

The MPC7410HX400LE is binned and tested to operate reliably at a maximum core frequency of 400 MHz under recommended conditions (1.8 V ±100 mV, Tj ≤ 105°C). This rating is verified via functional testing at speed using contrived instruction sequences that maximize execution unit utilization, and it corresponds to a minimum SYSCLK frequency of 33 MHz with appropriate PLL_CFG[0:3] settings per Table 7 of the hardware specifications.

Does the MPC7410HX400LE support 3.3 V I/O signaling on its processor bus?

Yes, the MPC7410HX400LE supports 3.3 V I/O signaling on the processor bus when BVSEL is configured to ¬HRESET or 1, as specified in Table 2 and Table 3 of the hardware specifications. This capability is available only on Mxx7410xxnnnLE revision 1.4 and later; earlier revisions limit OVDD to 2.5 V maximum and do not support the 3.3 V threshold mode.

How does the MPC7410HX400LE handle L2 cache coherency in multiprocessor systems?

The MPC7410HX400LE implements a five-state cache coherency protocol (MESI plus shared intervention) that maintains consistency across multiple processors sharing the same L2 cache domain. This protocol is executed entirely in hardware and requires no software intervention, enabling symmetric multiprocessing configurations where each MPC7410HX400LE maintains independent L1 caches while coordinating castout and snoop actions over the MPX bus.

What thermal management provisions are built into the MPC7410HX400LE?

The MPC7410HX400LE integrates three static power-saving modes (Doze, Nap, Sleep), dynamic voltage scaling, and thermal monitoring circuitry. Its 0.18 µm CMOS process and 1.8 V core reduce intrinsic power dissipation, while the CBGA package provides low RθJC (<0.1°C/W) and documented RθJA values (18°C/W natural convection) to guide heatsink selection. The die-junction temperature sensor feeds into the performance monitor unit for closed-loop thermal throttling.

Can the MPC7410HX400LE execute legacy PowerPC 603/604 code without modification?

Yes, the MPC7410HX400LE fully implements the PowerPC 32-bit architecture including all Book III-S and Book III-E specifications, ensuring binary compatibility with software written for earlier PowerPC processors such as the MPC603e and MPC604. Its instruction set includes backward-compatible scalar, FPU, and MMU functionality, while AltiVec instructions are optional extensions that do not affect execution of legacy code paths.