NXP Semiconductors MPC866PCZP100A

Overview

MPC866PCZP100A from NXP Semiconductors (formerly Freescale) is a PowerQUICC™ II-class integrated communications processor combining a 32-bit PowerPC core, CPM coprocessor, and system integration unit in a single 357-pin PBGA package. It operates at up to 100 MHz CPU frequency with 16 KB instruction cache and 8 KB data cache, supports dual-bus MII/UTOPIA ATM interfaces, and targets embedded networking control applications including DSL access multiplexers and enterprise edge routers.

For engineers reviewing the MPC866PCZP100A datasheet, MPC866PCZP100A pinout, MPC866PCZP100A application, or MPC866PCZP100A equivalent, key selection criteria include its 100 MHz operation point, 1.8 V core / 3.3 V I/O voltage domains, IEEE 1149.1 JTAG debug support, and integrated FEC + ESAR-enhanced ATM functionality - all critical for deterministic real-time packet processing in telecom infrastructure.

Technical Context

The MPC866PCZP100A implements a single-issue PowerPC 603e-derived core with MMU, 32-entry ITLB/DTLB, and physically addressed caches. Its CPM module executes serial protocol stacks independently via 16 SDMA channels and 8 KB dual-port RAM, enabling concurrent HDLC, UART, SPI, I²C, and UTOPIA traffic handling without CPU intervention.

System-level timing is governed by a programmable clock synthesizer supporting 1:1 and 2:1 CPU-to-bus ratios; at 100 MHz CPU speed, it requires 50 MHz bus operation. The SIU provides four 16-bit timers, software watchdog, PIT, and IEEE 1149.1 TAP controller - all synchronized to the same clock domain as the core and CPM.

Key Specifications

Pinout & Package

357-pin plastic ball grid array (PBGA), 27 mm × 27 mm body, 1.27 mm pitch, RoHS-compliant. Thermal pad exposed on underside for solder attachment to internal ground plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC866PCZP100A, the MPC866PZP133B delivers 33% higher CPU throughput at the expense of increased thermal load and power supply complexity, while the MPC852TVR100B sacrifices ATM acceleration and serial channel count to achieve lower system cost and simpler layout - making each suitable for distinct tiers of networking equipment.

Availability

MPC866PCZP100A is available at Aetrix Electronics and suitable for DSL access multiplexers, enterprise edge routers, industrial protocol gateways, and legacy network bridges requiring stable component supply across extended product lifecycles.

Supply support for MPC866PCZP100A 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 IoT markets, with roots in Freescale's embedded processor heritage.

The MPC866PCZP100A belongs to the PowerQUICC™ II family, designed specifically for cost-optimized, low-power communications infrastructure where integrated protocol acceleration and deterministic real-time performance are essential.

FAQ

What is the maximum operating temperature for the MPC866PCZP100A?

The MPC866PCZP100A has a maximum junction temperature (Tj) of 95°C under standard operating conditions and 100°C in extended temperature grade configurations. This rating assumes proper thermal design with RθJB = 13°C/W and board temperature maintained below 70°C. Exceeding these limits risks permanent degradation of the embedded PowerPC core and CPM memory subsystem.

Does the MPC866PCZP100A support IEEE 1149.1 JTAG debugging?

Yes, the MPC866PCZP100A includes full IEEE 1149.1 Test Access Port (TAP) controller with TCK, TMS, TDI, TDO, and TRST_B pins. It supports boundary-scan testing, in-circuit emulation, and flash programming via standard JTAG adapters - all documented in Section 11 of the MPC866/MPC859 Hardware Specifications.

Can the MPC866PCZP100A operate with a 100 MHz bus clock?

No - the MPC866PCZP100A supports maximum bus speeds of 66 MHz in 1:1 mode or 50 MHz in 2:1 mode. At 100 MHz CPU frequency, it must be configured for 2:1 bus ratio (50 MHz bus), as confirmed in Table 7 of the hardware specifications. Attempting 100 MHz bus operation violates AC timing and causes data corruption.

Which pins on the MPC866PCZP100A are 5 V tolerant?

The MPC866PCZP100A specifies 5 V tolerance on PA[0:15], PB[14:31], PC[4:15], PD[3:15], TDI, TDO, TCK, TRST_B, TMS, MII_TXEN, and MII_MDIO pins only. All other inputs must remain within VDDH + 0.3 V (≤3.765 V). This restriction applies during power-up, power-down, and normal operation per Table 6 DC specifications.

What is the function of the Time Slot Assigner (TSA) in the MPC866PCZP100A?

The TSA in the MPC866PCZP100A enables dynamic time-division multiplexing across up to six serial channels (four SCCs and two SMCs), supporting T1, E1, ISDN, and custom PCM frame formats. It provides independent transmit/receive routing, frame synchronization, and clocking - allowing simultaneous HDLC, GCI, and transparent serial protocols without CPU scheduling overhead.