NXP Semiconductors MPC860PCVR66D4

Overview

MPC860PCVR66D4 from NXP (formerly Freescale) is a PowerQUICC™ integrated communications controller combining a 32-bit Power Architecture™ CPU core and a RISC-based Communications Processor Module (CPM) in a single PBGA357 package. It delivers 66 MHz CPU operation, 4 KB instruction/4 KB data cache, IEEE 802.3u-compliant 10/100 Mbps Ethernet support via SCCs, and UTOPIA-level ATM cell processing up to 70 Mbps - deployed in carrier-grade DSLAMs, enterprise routers, and industrial protocol gateways.

For engineers reviewing the MPC860PCVR66D4 datasheet, MPC860PCVR66D4 pinout, MPC860PCVR66D4 application, or MPC860PCVR66D4 equivalent, key selection considerations include its 66 MHz bus timing compliance, dual-voltage 3.3 V core / 5 V-tolerant I/O operation, 357-pin PBGA thermal profile (RθJB = 13°C/W), and CPM-offloaded serial protocol handling (HDLC, UART, SPI, I²C, TDM).

Technical Context

The MPC860PCVR66D4 implements a split-architecture design: a superscalar PowerPC 603e-derived CPU core with MMU, instruction/data caches, and branch prediction handles general-purpose tasks, while the autonomous CPM - enhanced over MC68360 QUICC with added I²C and PCMCIA support - manages time-critical serial, Ethernet, and ATM traffic without CPU intervention. Its memory controller supports eight banks with dynamic bus sizing (8/16/32-bit), programmable wait states, and glueless interfacing to DRAM, SRAM, Flash, and EPROM.

Timing-critical subsystems include four independent baud-rate generators (BRGs), four SCCs supporting HDLC/SDLC/UART/Ethernet/PPP/IrDA/BISYNC, two SMCs for GCI/TDM, one SPI, one I²C, and a TSA enabling dynamic time-slot routing across six serial channels. The SIU provides clock synthesis, PIT, RTC, watchdog, JTAG debug, and low-power modes (Doze/Sleep/Deep Sleep/Power Down).

Key Specifications

Pinout & Package

Package: 357-ball plastic ball grid array (PBGA), ZQ/VR designation (Case No. 5058, 1103D-02), 25 mm × 25 mm footprint, 1.27 mm ball pitch, 1.15 mm overall height, exposed thermal pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC860PCVR66D4, MPC860PZQ66D4 offers identical functionality in a standard-marked package, while MPC855TZQ66D4 removes ATM/PCMCIA/extra SCCs to reduce cost and footprint - making it viable only when those features are excluded from the system architecture.

Availability

MPC860PCVR66D4 is available at Aetrix Electronics and suitable for carrier-grade DSLAMs, industrial protocol gateways, enterprise branch routers, and secure remote access appliances requiring stable component supply across extended product lifecycles.

Supply support for MPC860PCVR66D4 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 (formerly Freescale Semiconductor) is a global leader in secure connectivity solutions for automotive, industrial, and networking applications, with deep expertise in Power Architecture™ and communications SoCs.

The MPC860 PowerQUICC™ family was designed specifically for embedded communications infrastructure - integrating CPU, CPM, and peripheral interfaces to replace multi-chip controller designs in routers, gateways, and telecom line cards.

FAQ

What is the maximum supported bus frequency for MPC860PCVR66D4?

The MPC860PCVR66D4 supports a maximum bus frequency of 66 MHz in 1:1 mode (CPU = bus). When operated at 80 MHz CPU speed, it must be configured in 2:1 mode with a 40 MHz bus - verified by AC timing parameter B1 (CLKOUT period min = 25.00 ns at 40 MHz) and Table 7 bus timing limits.

Does MPC860PCVR66D4 support IEEE 802.3u 100BASE-TX Ethernet?

Yes, MPC860PCVR66D4 supports full IEEE 802.3u-compliant 10/100 Mbps Ethernet via its SCCs - confirmed in Section 2 Features and Table 1 (MPC860 family supports "10/100" Ethernet). MII signals (MII_MDC, MII_MDIO, MII_TXD[0:3], etc.) are dedicated pins requiring connection to an external PHY.

What package type and thermal characteristics apply to MPC860PCVR66D4?

MPC860PCVR66D4 uses a 357-ball PBGA package with ZQ/VR designation (Case No. 5058), 25 mm × 25 mm, 1.27 mm pitch. Its thermal resistance is RθJB = 13°C/W (junction-to-board, 4-layer board) and RθJA = 22°C/W (junction-to-ambient, 4-layer board), per Table 4 in the Hardware Specifications Rev. 10.

Can MPC860PCVR66D4 operate with 5 V-tolerant I/O while using 3.3 V core supply?

Yes, MPC860PCVR66D4 operates at 3.3 V core (VDDH/VDDL) with 5 V-tolerant I/O - specified in Section 6 DC Characteristics: VIH(max) = 5.5 V for all inputs except EXTAL/EXTCLK. Critical constraint: input voltage must not exceed VDDH + 2.5 V during power-up or operation.

What is the role of the Communications Processor Module (CPM) in MPC860PCVR66D4?

The CPM in MPC860PCVR66D4 is an autonomous RISC engine that offloads serial protocol processing - including HDLC framing, CRC generation/checking, bit-stuffing, Ethernet MAC, and ATM cell handling - from the main CPU. This enables deterministic real-time response for telecom protocols without CPU intervention.