NXP Semiconductors MPC860PZQ80D4

Overview

MPC860PZQ80D4 from NXP (formerly Freescale) is a PowerQUICC™ integrated communications processor combining a 32-bit Power Architecture™ CPU core with a dedicated RISC communications processor module (CPM), 16 KB instruction cache, 8 KB data cache, and integrated 10/100 Mbps Ethernet MAC. It operates at up to 80 MHz, supports up to four serial communications controllers (SCCs), and targets embedded networking control in industrial gateways and telecom edge devices.

For engineers reviewing the MPC860PZQ80D4 datasheet, MPC860PZQ80D4 pinout, MPC860PZQ80D4 application, or MPC860PZQ80D4 equivalent, key selection considerations include its 357-pin PBGA package, IEEE 802.3u-compliant Ethernet interface, UTOPIA/ATM support, dual-bus memory controller with eight banks, and real-time clock integration - all critical for deterministic packet processing and legacy protocol bridging.

Technical Context

The MPC860PZQ80D4 implements a split-processor architecture: the main CPU handles general-purpose tasks and OS execution, while the CPM offloads time-critical communication protocols including HDLC, UART, SPI, I²C, and FEC. Its memory controller supports dynamic bus sizing (8/16/32-bit), up to 256 MB per bank, and glueless interfacing to DRAM, SRAM, Flash, and EPROM.

It integrates a system integration unit (SIU) with programmable PIT, software watchdog, IEEE 1149.1 JTAG debug interface, and clock synthesizer; the CPM includes 8 KB dual-port RAM, 16 SDMA channels, four baud-rate generators, and time-slot assigner (TSA) for T1/E1/ISDN timing alignment - enabling concurrent multi-protocol operation without CPU intervention.

Key Specifications

Pinout & Package

Package: 357-ball plastic ball grid array (PBGA), ZQ package code (case 5058), 25 mm × 25 mm footprint, 1.27 mm ball pitch, 1.2 mm profile height. Thermal pad on underside requires solder connection to ground plane for optimal thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC860PZP80D4, the MPC860PZQ80D4 delivers 7% lower junction-to-board thermal resistance for improved sustained 80 MHz operation under load; versus MPC855TZQ80D4, it adds three additional SCCs, ATM/UTOPIA support, and double CPM RAM - enabling concurrent HDLC, PPP, and Ethernet forwarding without CPU scheduling bottlenecks.

Availability

MPC860PZQ80D4 is available at Aetrix Electronics and suitable for industrial protocol gateways, DSL access multiplexers, secure remote terminal units, and legacy telecom node controllers requiring stable component supply across extended product lifecycles.

Supply support for MPC860PZQ80D4 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 IoT applications, with heritage in Freescale's Power Architecture™ portfolio.

The MPC860 PowerQUICC™ family was designed to unify CPU and communications processing in a single die for cost-sensitive, high-reliability embedded networking - targeting applications where protocol flexibility, real-time determinism, and long-term supply stability are mandatory.

FAQ

What is the maximum operating frequency of the MPC860PZQ80D4?

The MPC860PZQ80D4 operates at a maximum CPU frequency of 80 MHz. However, due to bus timing constraints, it must be configured in 2:1 mode - meaning the internal bus runs at 40 MHz while the CPU core runs at 80 MHz. This configuration is explicitly required per Freescale's hardware specifications to meet AC timing margins at full speed. The MPC860PZQ80D4 does not support 80 MHz bus operation.

Does the MPC860PZQ80D4 support IEEE 802.3u 100BASE-TX Ethernet?

Yes, the MPC860PZQ80D4 supports full IEEE 802.3u-compliant 10/100 Mbps Ethernet via its integrated SCCs (SCC1–SCC4). When configured as an Ethernet MAC, it handles frame assembly/disassembly, CRC generation/checking, and flow control - but requires an external PHY for physical layer signaling. The MPC860PZQ80D4 does not include an integrated PHY; MII or RMII interface pins are provided for external PHY connection.

What package type and dimensions does the MPC860PZQ80D4 use?

The MPC860PZQ80D4 uses a 357-ball plastic BGA (PBGA) package with ZQ designation (case 5058), measuring 25 mm × 25 mm with 1.27 mm ball pitch and 1.2 mm overall height. It features an exposed thermal pad on the underside that must be soldered to a PCB ground plane for thermal compliance. The ZQ package has a 1.15 mm mold compound thickness, distinguishing it from the thinner ZP variant.

Can the MPC860PZQ80D4 execute code directly from external Flash memory?

Yes, the MPC860PZQ80D4 supports XIP (eXecute-In-Place) from external Flash memory via its memory controller. The boot chip-select (CS0) is active at reset and configurable for 8-, 16-, or 32-bit Flash interfaces. Address decoding, wait-state insertion, and write-protection are fully programmable - enabling direct execution of boot code and firmware without RAM copy, reducing startup latency and memory footprint.

What debugging interfaces are available on the MPC860PZQ80D4?

The MPC860PZQ80D4 includes a full IEEE 1149.1 (JTAG) test access port with boundary-scan capability and on-chip emulation support. It provides eight hardware watchpoint comparators (four for instruction address, two for data address, two for data value), enabling precise breakpoint triggering on memory access patterns. Debug is accessible via standard JTAG probes compatible with Freescale Codewarrior and Lauterbach TRACE32 tools.