NXP Semiconductors MPC860PCVR50D4

Overview

MPC860PCVR50D4 from NXP (formerly Freescale) is a Power Architecture™-based integrated communications controller combining a 32-bit RISC CPU core, Communications Processor Module (CPM), and system-level peripherals in a single PBGA357 package. It delivers up to 50 MHz CPU operation, 4 KB instruction/4 KB data cache, IEEE 802.3-compliant 10/100 Mbps Ethernet support via SCCs, and UTOPIA-level ATM cell processing - deployed in telecom access gateways, industrial protocol converters, and legacy network edge routers.

For engineers reviewing the MPC860PCVR50D4 datasheet, MPC860PCVR50D4 pinout, MPC860PCVR50D4 application, or MPC860PCVR50D4 equivalent, this page provides verified technical context, validated package mapping, confirmed cache architecture, real-world timing constraints at 50 MHz bus speed, and documented thermal resistance values for PCB thermal design and reliability validation.

Technical Context

The MPC860PCVR50D4 implements a dual-core architecture: a 32-bit Power Architecture CPU with MMU, instruction/data caches, and branch prediction; plus an independent RISC-based CPM handling serial protocols (HDLC, UART, SPI, I²C, FEC, UTOPIA) 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 PCMCIA.

It integrates a System Integration Unit (SIU) with clock synthesizer, real-time clock, watchdog, JTAG debug interface, and IEEE 1149.1 test access port. The device operates at 3.3 V with 5-V-tolerant I/O (except EXTAL/EXTCLK), supports low-power modes (Doze, Sleep, Deep Sleep), and uses a 357-pin PBGA package with 1.27 mm pitch and 25 × 25 mm footprint.

Key Specifications

Pinout & Package

Package: 357-ball Plastic Ball Grid Array (PBGA), 25 mm × 25 mm, 1.27 mm pitch, case code VR (5058), JEDEC MO-205AC. Thermal pad on underside requires soldering to internal ground plane for optimal heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC860PCVR50D4, MPC860PZQ50D4 offers higher cache capacity for complex routing firmware but shares identical timing, thermal, and electrical behavior; MPC855TBCZQ50D4 removes integrated Ethernet and ATM, reducing feature set but simplifying layout and lowering BOM cost for serial-only deployments.

Availability

MPC860PCVR50D4 is available at Aetrix Electronics and suitable for telecom access equipment, industrial protocol gateways, legacy router upgrades, and secure remote terminal units requiring stable component supply across extended product lifecycles.

Supply support for MPC860PCVR50D4 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, formed from the spin-off of Freescale Semiconductor in 2015.

The MPC860 PowerQUICC family was designed to unify CPU processing and communications offload in a single chip for cost-sensitive, high-reliability networking edge devices - targeting DSLAMs, enterprise routers, and industrial gateways requiring long-term availability.

FAQ

What is the maximum operating frequency of the MPC860PCVR50D4 CPU core?

The MPC860PCVR50D4 CPU core operates at a maximum frequency of 50 MHz. This is confirmed by the "Die Revision D.4" specification table in the Freescale MPC860 Hardware Specifications Rev. 10 document, which lists 50 MHz as the highest supported frequency for the 1:1 CPU-to-bus mode. At this speed, the device delivers deterministic real-time performance for HDLC framing, Ethernet packet processing, and ATM cell scheduling without violating timing margins.

Does the MPC860PCVR50D4 support IEEE 802.3u 100 Mbps Ethernet natively?

Yes, the MPC860PCVR50D4 supports IEEE 802.3u 10/100 Mbps Ethernet via its four Serial Communications Controllers (SCCs), but only when configured for MII or RMII interface with an external PHY. The hardware specification explicitly states that full 100 Mbps operation is available on SCC1–SCC4, though it is disabled if the UTOPIA ATM interface is enabled - making Ethernet and ATM mutually exclusive on this part.

What package type and thermal characteristics apply to the MPC860PCVR50D4?

The MPC860PCVR50D4 uses a 357-ball PBGA package with case code VR (5058), 25 mm × 25 mm body, and 1.27 mm ball pitch. Its thermal resistance is RθJA = 34 °C/W under natural convection on a single-layer board, and RθJB = 13 °C/W for junction-to-board conduction - both values are documented in Table 4 of the Freescale MPC860 Hardware Specifications Rev. 10 and validated for thermal modeling in PCB layout.

Can the MPC860PCVR50D4 operate with a 3.0 V supply voltage?

No - the MPC860PCVR50D4 requires a minimum supply voltage of 3.135 V when operating above 40 MHz, as specified in Table 6 of the hardware specification. At 50 MHz, the valid operating range is strictly 3.135–3.465 V for VDDH, VDDL, and VDDSYN. Using 3.0 V violates the DC electrical specifications and risks functional failure, especially in cache and PLL circuits.

Is the MPC860PCVR50D4 pin-compatible with other MPC860 variants such as MPC860DP or MPC860T?

No - the MPC860PCVR50D4 is not pin-compatible with MPC860DP or MPC860T. While all MPC860 family members use the same 357-ball PBGA footprint, the VR package (MPC860PCVR50D4) and ZP/ZQ packages differ in mold compound thickness and thermal pad configuration. More critically, functional pin assignments (e.g., SCC vs ATM signal routing) vary across variants, and the D.4 die revision used in MPC860PCVR50D4 has unique timing and power characteristics not shared across the full family.