NXP Semiconductors MPC860TVR80D4

Overview

MPC860TVR80D4 from Freescale Semiconductor is a 32-bit Power Architecture™ communications processor integrating CPU core, CPM, Ethernet MAC, ATM UTOPIA interface, and system peripherals in a single PBGA357 package. It operates at up to 80 MHz with 4 KB instruction/4 KB data cache, supports 10/100 Mbps IEEE 802.3u Ethernet and ATM UNI 4.0, and targets embedded networking control applications such as DSLAMs and enterprise routers.

For engineers reviewing the MPC860TVR80D4 datasheet, MPC860TVR80D4 pinout, MPC860TVR80D4 application, or MPC860TVR80D4 equivalent, key selection criteria include its 80 MHz CPU frequency, dual-bus architecture (CPU/bus 2:1 mode), integrated FEC and UTOPIA PHY interface, real-time clock, and support for DRAM/SRAM/Flash memory types without external glue logic.

Technical Context

The MPC860TVR80D4 implements a superscalar Power Architecture™ core with MMU, 32 GPRs, and branch prediction, paired with an enhanced RISC-based Communications Processor Module (CPM) supporting eight serial DMA channels and four SCCs. Its memory controller provides eight programmable banks with up to 15 wait states per bank and dynamic bus sizing for 8/16/32-bit interfaces.

It integrates IEEE 802.3u-compliant 10/100 Mbps Ethernet MAC (FEC), UTOPIA Level 1 master interface for ATM physical layer devices, I²C port, SPI, two SMCs, TSA for TDM routing, and PCMCIA socket controller compliant with JEIDA Release 2.1 - all synchronized via a shared 32-bit address/data bus and clock synthesizer.

Key Specifications

Pinout & Package

Package: 357-ball plastic ball grid array (PBGA), ZQ/VR package code (Case No. 5058), 25 mm × 25 mm footprint, 1.27 mm ball pitch, 1.2 mm height. Thermal pad on underside soldered to PCB ground plane for optimal heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC860PZQ80D4, MPC860TVR80D4 trades cache capacity for lower static power and smaller footprint in cache-constrained control-plane tasks; versus MPC855TZQ80D4, it retains full networking offload capability at the cost of missing USB/PCI - making it optimal for ATM/Ethernet edge nodes where protocol acceleration is critical.

Availability

MPC860TVR80D4 is available at Aetrix Electronics and suitable for DSLAM line cards, enterprise router control planes, industrial protocol gateways, and legacy network bridges requiring stable component supply across extended product lifecycles.

Supply support for MPC860TVR80D4 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 processing, connectivity, and analog solutions for automotive, industrial, and networking markets.

The MPC860 PowerQUICC family was designed to integrate CPU, communications peripherals, and memory control into a single chip for cost-sensitive, high-reliability networking equipment - specifically targeting DSLAMs, routers, and protocol converters requiring both Ethernet and ATM support.

FAQ

What is the maximum operating frequency of the MPC860TVR80D4 and what voltage range is required?

The MPC860TVR80D4 operates at a maximum CPU frequency of 80 MHz, requiring VDDH and VDDL supply voltages between 3.135 V and 3.465 V. At frequencies above 40 MHz, operation outside this range violates DC specifications and risks functional failure. The device supports 2:1 CPU-to-bus ratio, meaning the external bus runs at 40 MHz while the core executes at 80 MHz - a configuration validated in the MPC860TVR80D4 datasheet under "Bus Signal Timing" Table 7.

Does the MPC860TVR80D4 support both Ethernet and ATM interfaces simultaneously?

Yes, the MPC860TVR80D4 supports concurrent Ethernet and ATM operation: its FEC handles 10/100 Mbps IEEE 802.3u Ethernet traffic, while the UTOPIA Level 1 master interface manages ATM cell transport to external PHY devices. However, the hardware specification explicitly states that 10/100-Mbps Ethernet is not supported when using the ATM-over-UTOPIA interface - meaning the FEC and UTOPIA cannot share the same physical medium, but both controllers remain active and usable in separate subsystems of the same design.

What package type and thermal characteristics apply to the MPC860TVR80D4?

The MPC860TVR80D4 uses a 357-ball PBGA package with ZQ/VR designation (Case No. 5058), measuring 25 mm × 25 mm with 1.27 mm pitch. Its thermal resistance is characterized as RθJB = 13 °C/W (junction-to-board on 2s2p board) and RθJA = 22 °C/W under forced airflow (200 ft/min). These values are confirmed in Table 4 of the MPC860 Hardware Specifications Rev. 10, and define the thermal design envelope for reliable operation at 95 °C junction temperature.

How many serial communication controllers (SCCs) does the MPC860TVR80D4 include and what protocols do they support?

The MPC860TVR80D4 integrates four serial communication controllers (SCCs), each configurable for HDLC/SDLC (up to 2 Mbps), UART, AppleTalk, IrDA, BISYNC, or transparent bit-stream modes. SCC1–SCC4 can optionally support IEEE 802.3 Ethernet on specially programmed variants, though the MPC860TVR80D4's primary Ethernet function is handled by the dedicated FEC. This multi-protocol flexibility enables simultaneous console, management, and legacy interface support without external protocol converters.

Is the MPC860TVR80D4 pin-compatible with other MPC860 family members like the MPC860P or MPC855T?

The MPC860TVR80D4 shares the same 357-ball PBGA package (ZQ/VR) and pinout with MPC860PZQ80D4 and MPC855TZQ80D4, as confirmed by mechanical data in Section 14 of the MPC860 Hardware Specifications Rev. 10. However, functional differences exist: MPC860P has larger cache, MPC855T replaces UTOPIA with USB/PCI. Pin compatibility enables drop-in replacement only within the same speed grade and package variant - e.g., MPC860TVR80D4 ↔ MPC860PZQ80D4 - but not across functional families without firmware and layout review.