NXP Semiconductors MPC859PVR133A

Overview

MPC859PVR133A from NXP Semiconductors (formerly Freescale) is a PowerQUICC™ II communications processor integrating a 32-bit PowerPC core, CPM-based serial peripherals, and Fast Ethernet controller. It operates at 133 MHz CPU frequency with 16 KB instruction cache and 8 KB data cache, supports UTOPIA Level 2 and MII interfaces, and targets ATM edge node and DSL access concentrator applications.

For engineers reviewing the MPC859PVR133A datasheet, MPC859PVR133A pinout, MPC859PVR133A application, or MPC859PVR133A equivalent, key selection criteria include its 133 MHz core speed, 1.8 V core / 3.3 V I/O supply scheme, 357-pin PBGA package, single SCC with Ethernet capability, and ESAR-enhanced ATM support - all critical for embedded telecom control plane design.

Technical Context

The MPC859PVR133A implements a single-issue PowerPC core with MMU, 32-entry ITLB/DTLB, and physically addressed caches. Its CPM includes a 32-bit RISC controller, 8 KB dual-port RAM, and 10 SDMA channels managing one SCC and two SMCs.

It integrates SIU functions including clock synthesizer, JTAG debug interface, periodic interrupt timer, and software watchdog. The device supports simultaneous MII (10/100Base-T) and UTOPIA operation via multiplexed bus, with full-duplex UTOPIA master/slave capability and ROM-resident AAL2/VBR functionality.

Key Specifications

Pinout & Package

357-pin plastic ball grid array (PBGA), 27 × 27 mm body, 1.27 mm pitch, exposed thermal pad on underside requiring solder connection to internal ground plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC859TFR133A, the MPC859PVR133A provides double instruction/data cache capacity for improved protocol stack performance; compared with MPC866PVR133A, it reduces peripheral overhead and thermal load while retaining full ESAR functionality for single-link ATM deployments.

Availability

MPC859PVR133A is available at Aetrix Electronics and suitable for DSL access concentrators, ATM edge nodes, industrial protocol gateways, and legacy telecom terminal equipment requiring stable component supply across extended product lifecycles.

Supply support for MPC859PVR133A 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 develops high-reliability processors for automotive, industrial, and networking applications, with heritage from Freescale's PowerQUICC family.

The MPC859PVR133A belongs to the PowerQUICC II communications processor line, designed specifically for cost-optimized ATM/DSL edge infrastructure where integrated SAR, Ethernet, and serial interfaces reduce system-level component count.

FAQ

What is the maximum operating junction temperature for the MPC859PVR133A?

The MPC859PVR133A has a maximum junction temperature of 95 °C under standard operating conditions and 100 °C in extended temperature grade configurations. This limit is defined in Table 3 of the MPC866/MPC859 Hardware Specifications Rev. 2 and must be verified using board-level thermal modeling with RθJB = 13 °C/W. Exceeding this threshold risks permanent silicon degradation and functional failure in the MPC859PVR133A.

Does the MPC859PVR133A support full-duplex UTOPIA Level 2 operation?

Yes, the MPC859PVR133A supports full-duplex UTOPIA Level 2 operation in both master (ATM side) and slave (PHY side) modes using a split-bus configuration. This capability is explicitly documented in the Features section of the MPC866/MPC859 Hardware Specifications Rev. 2 and enables reduced cell transmission latency versus Level 1. The MPC859PVR133A implements the required FIFO buffering and timing controls without external logic.

How many serial DMA channels does the MPC859PVR133A provide?

The MPC859PVR133A provides 10 serial DMA (SDMA) channels, as confirmed in the Features section and Figure 2 of the MPC866/MPC859 Hardware Specifications Rev. 2. This is fewer than the 16 SDMA channels in the MPC866PVR133A but sufficient for concurrent operation of its single SCC, two SMCs, and FEC. Each channel manages data movement independently, offloading the PowerPC core in the MPC859PVR133A.

Is the MPC859PVR133A pin-compatible with the MPC866PVR133A?

No, the MPC859PVR133A is not pin-compatible with the MPC866PVR133A despite sharing the same 357-pin PBGA package and core frequency. Differences in peripheral allocation - such as four SCCs vs. one SCC, and 16 vs. 10 SDMA channels - result in distinct pin functions for signals like SCC2_TXD through SCC4_RXD, which are NC on the MPC859PVR133A. Board redesign is required when substituting the MPC859PVR133A for MPC866PVR133A.

What voltage sequencing is required for reliable power-up of the MPC859PVR133A?

The MPC859PVR133A requires VDDL (core) to ramp no faster than VDDH (I/O) during power-up, with VDDL never exceeding VDDH at any point. This is mandated in Section 8 of the MPC866/MPC859 Hardware Specifications Rev. 2 to prevent forward-biasing of internal ESD protection diodes. A discrete sequencing circuit using MUR420 Schottky diodes, as shown in Figure 4, is recommended for systems lacking tightly regulated multi-rail supplies. Failure to observe this constraint compromises long-term reliability of the MPC859PVR133A.