NXP Semiconductors MPC866PCVR100A

Overview

MPC866PCVR100A from NXP Semiconductors (formerly Freescale) is a PowerQUICC™ I integrated communications processor combining a 32-bit PowerPC core, CPM coprocessor, and system integration unit in a single PBGA package. It delivers 133 MHz CPU operation, 16 KB instruction/8 KB data cache, four SCCs, dual SMCs, FEC with MII/UTOPIA support, and 1.8 V core / 3.3 V I/O voltage domains - enabling embedded networking control in DSLAMs, enterprise routers, and industrial gateways.

For engineers reviewing the MPC866PCVR100A datasheet, MPC866PCVR100A pinout, MPC866PCVR100A application, or MPC866PCVR100A equivalent, key selection criteria include its superset feature set within the MPC866/859 family, ATM-enhanced SAR functionality, 357-pin PBGA thermal profile, and compatibility with PowerQUICC I toolchains and reference designs.

Technical Context

The MPC866PCVR100A implements a single-issue PowerPC 603e-derived core with MMU, 32-entry ITLB/DTLB, and physically addressed caches supporting lockable blocks and LRU replacement. Its CPM executes serial protocols independently via 16 SDMA channels and 8 KB dual-port RAM, offloading the main CPU from time-critical communication tasks.

System-level integration includes a memory controller supporting DRAM, SDRAM, SRAM, and flash across eight banks with programmable wait states and glueless interfacing; a SIU providing clock synthesis, JTAG debug, PIT, watchdog, and bus arbitration; and enhanced ATM features including ESAR mode, OAM/PM support, and UTOPIA Level 2 with FIFO buffering for reduced cell transmission latency.

Key Specifications

Pinout & Package

Package: 357-pin PBGA (27 mm × 27 mm, 1.27 mm pitch), RoHS-compliant, standard thermal pad configuration per JEDEC MO-205.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC866PCVR100A, MPC866PZQ133B offers identical functionality with extended thermal qualification, while MPC859PZQ133B sacrifices serial channel count and TSA to lower system cost - making the MPC866PCVR100A optimal for multi-interface, ATM-intensive deployments where superset capability justifies premium pricing.

Availability

MPC866PCVR100A is available at Aetrix Electronics and suitable for DSLAM line cards, industrial protocol gateways, and enterprise branch routers requiring stable component supply across long product lifecycles.

Supply support for MPC866PCVR100A 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 company formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity, automotive, and industrial processing solutions.

The MPC866PCVR100A belongs to the PowerQUICC I family - designed specifically for cost-effective, low-power embedded communications processing in networking infrastructure and industrial control systems.

FAQ

What is the maximum operating frequency of the MPC866PCVR100A?

The MPC866PCVR100A is rated for a maximum CPU frequency of 133 MHz. At this speed, it operates in 2:1 bus mode (66.5 MHz bus clock), requiring configuration of the system integration unit's clock synthesizer and proper memory timing parameters. The device's DC characteristics and thermal limits assume operation at this rated frequency with VDDL = 1.8 V and VDDH = 3.3 V, as specified in Table 5 of the MPC866/MPC859 Hardware Specifications Rev. 2. Exceeding 133 MHz violates the absolute maximum ratings and may cause functional failure or accelerated wear-out.

Does the MPC866PCVR100A support IEEE 1149.1 JTAG debugging?

Yes, the MPC866PCVR100A includes a fully compliant IEEE 1149.1 test access port (TAP) controller integrated into its system integration unit (SIU). Pins TCK, TMS, TDI, TDO, and TRST_B are dedicated to JTAG boundary-scan and on-chip emulation. The device supports advanced debug features including eight hardware comparators (four instruction address, two data address, two data value) and breakpoint generation on watchpoint match. This capability is documented in Sections 11 and 12 of the MPC866/MPC859 Hardware Specifications Rev. 2 and enables full visibility into both PowerPC core and CPM execution states during development of MPC866PCVR100A-based systems.

What are the power supply sequencing requirements for the MPC866PCVR100A?

The MPC866PCVR100A requires strict voltage sequencing: VDDL must not exceed VDDH during power-up or power-down, and both supplies must remain within their absolute maximum ranges (VDDL ≤ 1.9 V, VDDH ≤ 3.465 V). Violation risks forward-biasing internal ESD protection diodes, causing excessive current and potential latch-up. Freescale recommends using discrete diode-based sequencing circuits (e.g., MUR420 Schottky diodes) as shown in Figure 4 of the Hardware Specifications. The VDDSYN supply (1.8 V for PLL) must be noise-filtered per Section 14.4.3 of the MPC866UM/D manual. These constraints apply directly to MPC866PCVR100A layout and power design.

Can the MPC866PCVR100A operate with a 50 MHz crystal?

Yes, the MPC866PCVR100A accepts a 50 MHz fundamental-mode crystal on the EXTAL/EXTCLK pins. The on-chip clock synthesizer (PLL) multiplies this reference to generate the required 133 MHz CPU clock and synchronous bus clocks. Input high voltage for EXTAL is specified as VIHC = 0.7 × VDDH minimum, ensuring reliable oscillation startup with standard 3.3 V crystals. Crystal load capacitance and PCB trace length must comply with layout guidelines in Section 9 of the MPC866/MPC859 Hardware Specifications Rev. 2 to maintain jitter below 150 ps RMS - a requirement for stable MPC866PCVR100A operation in timing-critical ATM and Ethernet applications.

How many serial communication controllers does the MPC866PCVR100A include?

The MPC866PCVR100A includes four serial communication controllers (SCCs), as confirmed by Table 1 and Figure 1 of the MPC866/MPC859 Hardware Specifications Rev. 2. Each SCC supports multiple protocols including HDLC/SDLC, UART, IrDA, BISYNC, PPP, and serial ATM. SCC4 can be configured for optional UTOPIA Level 2 interface. This four-SCC configuration distinguishes the MPC866PCVR100A from derivative parts like the MPC859P (one SCC) and is essential for multi-protocol gateway applications requiring concurrent serial links - a defining capability of the MPC866PCVR100A within the PowerQUICC I family.