NXP Semiconductors MPC866PVR133A

Overview

MPC866PVR133A from Freescale Semiconductor is a 32-bit PowerQUICC™ communications processor integrating a PowerPC core, CPM coprocessor, and Fast Ethernet controller. It operates at 133 MHz CPU frequency with 16 KB instruction cache and 8 KB data cache, supports up to four SCCs and dual SMCs, and delivers simultaneous MII (10/100Base-T) and UTOPIA Level 2 operation for ATM edge routing applications.

For engineers reviewing the MPC866PVR133A datasheet, MPC866PVR133A pinout, MPC866PVR133A application, or MPC866PVR133A equivalent, key selection considerations include its 357-pin PBGA package, 1.8 V core / 3.3 V I/O supply scheme, enhanced SAR (ESAR) mode for OAM/PM support, and integrated TSA for T1/ISDN time-division multiplexing.

Technical Context

The MPC866PVR133A implements a single-issue 32-bit PowerPC core with MMU, 32-entry ITLB/DTLB, and physically addressed caches. Its CPM module includes an 8-KB dual-port RAM, 16 SDMA channels, and RISC-based serial channel control supporting HDLC, UART, IrDA, and ATM framing.

It integrates a system-level SIU with clock synthesizer, IEEE 1149.1 JTAG interface, software watchdog, and memory controller supporting DRAM, SDRAM, SRAM, and flash across eight banks - all operating on a unified 32-bit internal bus architecture shared between core, SIU, 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 on underside connected to ground plane via vias for junction-to-board heat transfer (R_θJB = 13 °C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC866PVR133A, MPC866PZQ133D offers identical functionality with mechanical packaging variation, while MPC859PVR133A sacrifices SCC count, TSA, and cache size to reduce silicon area and power - making it viable only for simplified single-link deployments.

Availability

MPC866PVR133A is available at Aetrix Electronics and suitable for DSLAM line cards, enterprise ATM edge routers, industrial protocol gateways, and legacy telecom terminal replacements requiring stable component supply across long-lifecycle deployments.

Supply support for MPC866PVR133A 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 processors, analog, and connectivity solutions for automotive, industrial, and networking markets.

The MPC866PVR133A belongs to the PowerQUICC™ family designed specifically for integrated communications processing in ATM, DSL, and TDM infrastructure equipment - combining real-time protocol acceleration with flexible I/O and memory subsystems.

FAQ

What is the maximum operating frequency of the MPC866PVR133A?

The MPC866PVR133A operates at a maximum CPU frequency of 133 MHz. In 2:1 bus mode, this corresponds to a 66.5 MHz system bus clock. The device supports 1:1 and 2:1 bus ratios, and bus speed must be configured accordingly in the system integration unit (SIU) during reset initialization. Power dissipation at 133 MHz is rated at 260 mW typical and 320 mW maximum under specified voltage conditions.

Does the MPC866PVR133A support 5-V tolerant I/O pins?

Yes, the MPC866PVR133A has 5-V tolerant pins including PA[0:15], PB[14:31], PC[4:15], PD[3:15], TDI, TDO, TCK, TRST_B, TMS, MII_TXEN, and MII_MDIO. These pins tolerate up to 5.5 V, but must not exceed VDDH + 2.5 V at any time - a critical constraint during power-up, power-down, and normal operation. Exceeding this limit risks forward-biasing internal ESD protection diodes.

How does the Time Slot Assigner (TSA) function in the MPC866PVR133A?

The TSA in the MPC866PVR133A provides hardware-assisted time-division multiplexing for T1, E1, ISDN, and PCM highway applications. It supports 1- or 8-bit resolution, independent transmit/receive routing, frame synchronization, and dynamic reconfiguration. The TSA connects internally to all four SCCs and both SMCs, enabling coordinated channelized serial communication without CPU intervention or external logic.

What thermal design guidelines apply to the MPC866PVR133A PBGA package?

The MPC866PVR133A uses a 357-pin PBGA with exposed thermal pad. Designers must use a 4-layer PCB with dedicated VDD and GND planes, connect thermal balls to the ground plane via ≥12 vias, and maintain R_θJB ≤ 13 °C/W. Junction temperature must stay ≤95 °C (standard) or ≤100 °C (extended); thermal modeling should use the two-resistor junction-to-board model with board temperature measurement at the package center.

Is the MPC866PVR133A pin-compatible with other MPC866 family members?

No - the MPC866PVR133A is not universally pin-compatible across the MPC866 family. While it shares the 357-pin PBGA footprint with MPC866PZQ133D, it differs electrically and mechanically from MPC866T variants (which have reduced cache and fewer peripherals) and MPC859 variants (which use different pin assignments for SCC/SMC and omit TSA signals). Pin compatibility must be verified per specific variant using Freescale's MPC866/MPC859 Hardware Specifications Rev. 2.