NXP Semiconductors MPC8540CVT667JB

Overview

MPC8540CVT667JB from NXP (formerly Freescale) is a PowerQUICC™ III integrated host processor featuring a 32-bit e500 Power Architecture™ core, 256 KB configurable L2 cache/SRAM, dual 10/100/1000 Mbps TSEC Ethernet controllers, DDR SDRAM controller (64-bit, up to 333 MHz), PCI/PCI-X (64-bit, 133 MHz), RapidIO (8-bit, 500 MHz), and OCeaN packet switch - deployed in telecom infrastructure line cards and wireless baseband units.

For engineers reviewing the MPC8540CVT667JB datasheet, MPC8540CVT667JB pinout, MPC8540CVT667JB application, or MPC8540CVT667JB equivalent, key selection criteria include its 667 MHz e500 core frequency, 783-pin FC-PBGA package with 2.5 V DDR I/O and 3.3 V system I/O, support for ECC-protected memory subsystems, and multi-protocol connectivity for carrier-grade control plane processing.

Technical Context

The MPC8540CVT667JB implements the Book E–enhanced e500 core with 32 KB L1 instruction and 32 KB L1 data caches (parity-protected), MMU optimized for embedded real-time OS environments, and performance monitor facility with eight 32-bit event counters. Its coherency module enables cache snooping across local bus, PCI, and RapidIO masters.

System-level integration includes an ATMU with eight local access windows and configurable inbound/outbound translations for PCI/PCI-X and RapidIO, a DDR controller supporting registered DIMMs and auto-refresh, and dual TSECs compliant with IEEE 802.3z (Gigabit), 802.3ab (1000BASE-T), and RGMII/RTBI physical interfaces - all operating under a fully static 1.2 V core supply with 2.5 V/3.3 V I/O domains.

Key Specifications

Pinout & Package

Package: 783-pin Fine-Pitch Ceramic Ball Grid Array (FC-PBGA), 35 mm × 35 mm, 1.0 mm ball pitch, RoHS-compliant. Thermal pad on underside requires solder paste stencil opening and thermal via array per Freescale AN2812.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8548CZQ667B, MPC8540CVT667JB omits security acceleration but simplifies power delivery and DDR-1 timing closure; versus P1022NSEALF, it retains RapidIO and OCeaN for existing telecom interconnect architectures but trades peak performance for proven field reliability in deployed systems.

Availability

MPC8540CVT667JB is available at Aetrix Electronics and suitable for telecom infrastructure, wireless baseband units, and industrial protocol gateways requiring stable component supply and long-term lifecycle support.

Supply support for MPC8540CVT667JB 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, and networking markets, with roots in Freescale's Power Architecture heritage.

The MPC8540CVT667JB belongs to the PowerQUICC™ III family - designed specifically for high-reliability control-plane processing in carrier-class networking and telecommunications equipment where multi-protocol integration and ECC-protected memory are critical.

FAQ

What is the maximum DDR-1 data rate supported by the MPC8540CVT667JB?

The MPC8540CVT667JB supports a DDR-1 data rate of up to 333 MHz, delivering 2.66 GB/s peak bandwidth across its 64-bit interface. This is confirmed in Section 6 of the Hardware Specifications document, which specifies programmable timing for DDR-1 SDRAM with four banks, registered DIMM support, and full ECC protection - all validated for operation at 333 MHz with 2.5 V SSTL2 I/O.

Does the MPC8540CVT667JB support PCIe or only PCI/PCI-X?

The MPC8540CVT667JB supports PCI 2.2 and PCI-X 1.0 (up to 133 MHz, 64-bit), but does not implement PCIe. Section 12 of the Hardware Specifications explicitly states PCI/PCI-X compliance only, with features including dual address cycles, split transactions, and 64-bit streaming - no mention of PCIe endpoints, root complexes, or PCIe-specific registers appears in the documentation for MPC8540CVT667JB.

What boot sources are supported by the MPC8540CVT667JB?

The MPC8540CVT667JB supports booting from serial ROM via its I²C interface using the integrated boot sequencer, as detailed in Section 1.1 (Boot Sequencer) of the Hardware Specifications. It also supports parallel boot from local bus ROM (8-/16-/32-bit width) using the default chip select, but does not support NAND/NOR flash boot directly - external glue logic or FPGA bridging is required for those interfaces.

Is the MPC8540CVT667JB pin-compatible with other MPC854x variants like MPC8547 or MPC8548?

No, the MPC8540CVT667JB is not pin-compatible with MPC8547 or MPC8548. While all share the 783-pin FC-PBGA package, Freescale's Device Nomenclature section (Section 19) and pin listings (Section 14) confirm functional pin assignments differ significantly - especially for RapidIO, SEC, and DDR2 signals introduced in later variants. Board-level replacement requires schematic and layout revision.

What is the junction temperature limit for continuous operation of the MPC8540CVT667JB?

The MPC8540CVT667JB has a maximum die-junction temperature (Tj) of 105°C for continuous operation, as specified in Table 2 (Recommended Operating Conditions) of the Hardware Specifications. This limit assumes proper thermal management: 783-pin FC-PBGA mounting with thermal vias, ≥2 oz copper planes, and airflow ≥200 LFM - exceeding 105°C risks permanent parametric shift or latch-up.