NXP Semiconductors MPC862PCZQ80B

Overview

MPC862PCZQ80B from NXP Semiconductors (formerly Freescale) is a PowerQUICC™ II family integrated communications processor combining a 32-bit MPC8xx PowerPC core, Communications Processor Module (CPM), and System Integration Unit (SIU) in a single 357-pin PBGA package. It operates at up to 80 MHz, delivers 16 KB instruction and 8 KB data cache, supports up to four Fast Ethernet MII/UTOPIA interfaces, and targets ATM edge routing, DSL access multiplexing, and embedded telecom control applications.

For engineers reviewing the MPC862PCZQ80B datasheet, MPC862PCZQ80B pinout, MPC862PCZQ80B application, or MPC862PCZQ80B equivalent, key selection considerations include its 80 MHz CPU frequency, dual-port RAM size, CPM-based serial channel count (4 SCCs + 2 SMCs), UTOPIA Level 2 compliance, and support for enhanced SAR (ESAR) mode with OAM/PM and ATM port-to-port switching.

Technical Context

The MPC862PCZQ80B implements a single-issue 32-bit PowerPC core with 32 GPRs, branch prediction, and physically addressed caches-16 KB four-way set-associative instruction cache and 8 KB two-way set-associative data cache. Its CPM executes communication-specific instructions independently of the main CPU, managing up to 16 SDMA channels and 8 KB dual-port RAM for protocol offload.

It integrates a full SIU with memory controller (8 banks, dynamic bus sizing), IEEE 1149.1 JTAG debug interface, four baud rate generators, and hardware time-slot assigner (TSA) supporting T1/E1, ISDN, and PCM highway routing. The device supports simultaneous MII (10/100Base-T) and UTOPIA operation via multiplexed bus, with ESAR mode enabling ROM-resident AAL2/VBR and statistical cell counting.

Key Specifications

Pinout & Package

Package: 357-pin PBGA (19×19 array, 1.27 mm pitch), thermally enhanced with exposed die pad. Pinout validated per Freescale MPC862EC Rev. 3 documentation and official pin assignment tables (e.g., Table 5 DC specs, Figures 1–2 block diagrams, and pin listing in Section 14).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC862PZQ80B, MPC862PCZQ80B reflects updated NXP part numbering while retaining identical silicon functionality; versus MPC862DCZQ80B, it trades extended temperature rating for lower cost and qualification in commercial telecom infrastructure deployments.

Availability

MPC862PCZQ80B is available at Aetrix Electronics and suitable for DSL access multiplexers, ATM edge routers, industrial protocol gateways, and legacy telecom controllers requiring stable component supply over extended product lifecycles.

Supply support for MPC862PCZQ80B 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, with roots in Freescale's PowerQUICC™ portfolio.

The MPC862PCZQ80B belongs to the PowerQUICC™ II family, designed specifically for cost-sensitive, high-reliability embedded communications applications requiring integrated protocol acceleration, low-power operation, and long-term industrial availability.

FAQ

What is the maximum operating frequency of the MPC862PCZQ80B?

The MPC862PCZQ80B is rated for a maximum CPU frequency of 80 MHz. However, per Freescale MPC862EC Rev. 3 specification, it must be operated in half-speed bus mode - meaning the external bus runs at 40 MHz when the core runs at 80 MHz. This constraint ensures signal integrity and timing margin compliance across all memory and peripheral interfaces.

Does the MPC862PCZQ80B support UTOPIA Level 2 and full-duplex operation?

Yes, the MPC862PCZQ80B supports UTOPIA Level 2 compliant interface with added FIFO buffering to reduce cell transmission time, and also supports full-duplex UTOPIA operation in both master (ATM side) and slave (PHY side) modes using a split bus configuration - a capability confirmed in Section 2 Features and Table 1 of the MPC862EC Rev. 3 datasheet.

How many serial communication controllers (SCCs) does the MPC862PCZQ80B include?

The MPC862PCZQ80B includes four serial communication controllers (SCC1–SCC4), as explicitly stated in Table 1 of the MPC862EC Rev. 3 document. All four SCCs support serial ATM capability, optional UTOPIA on SCC4, and multiple protocols including HDLC, SDLC, PPP, UART, IrDA, and BISYNC.

What power supply voltages does the MPC862PCZQ80B require?

The MPC862PCZQ80B requires four distinct supply voltages: VDDH (I/O, 3.135–3.465 V), VDDL (core, 3.135–3.465 V), KAPWR (power-down retention, 2.0–3.6 V), and VDDSYN (PLL, 3.135–3.465 V). Input pins tolerate 5 V only if voltage does not exceed VDDH + 2.5 V, per Absolute Maximum Ratings in Table 2.

Is the MPC862PCZQ80B pin-compatible with other MPC862 family members like MPC862PZQ80B?

Yes, the MPC862PCZQ80B is mechanically and electrically pin-compatible with MPC862PZQ80B - both use the identical 357-pin PBGA package, share identical pin assignments, thermal characteristics, and DC/AC specifications per MPC862EC Rev. 3. The "PC" prefix reflects updated NXP packaging nomenclature but does not indicate functional or pinout differences.