NXP Semiconductors MPC860SRVR50D4-NXP

Overview

MPC860SRVR50D4-NXP from NXP (formerly Freescale) is a PowerQUICC™ integrated communications controller combining a 32-bit Power Architecture™ CPU core and a dedicated RISC communications processor module (CPM). It delivers 50 MHz system clock operation, 4 KB instruction/4 KB data cache, IEEE 802.3-compliant 10/100 Mbps Ethernet on SCCs, and UTOPIA-level ATM support - deployed in telecom access gateways, industrial protocol converters, and legacy network edge routers.

For engineers reviewing the MPC860SRVR50D4-NXP datasheet, MPC860SRVR50D4-NXP pinout, MPC860SRVR50D4-NXP application, or MPC860SRVR50D4-NXP equivalent, key selection criteria include its 357-pin PBGA package, dual-voltage 3.3 V core/I/O operation with 5 V-tolerant inputs, integrated real-time clock, and support for up to four serial communications controllers (SCCs) with HDLC, UART, and IrDA modes.

Technical Context

The MPC860SRVR50D4-NXP implements a split-architecture design: a 32-bit Power Architecture™ CPU core with MMU, instruction/data caches, and memory management unit handles host control and OS execution, while the independent CPM offloads time-critical serial, Ethernet, and ATM protocol processing. Its bus interface supports dynamic 8/16/32-bit data width and up to 66 MHz bus speed (with 50 MHz core requiring 25 MHz bus in 2:1 mode).

It integrates four SCCs supporting simultaneous HDLC, Ethernet MAC, and asynchronous UART functions; two SMCs for management channel I/O; one SPI; one I²C port; and a TSA for TDM time-slot routing. The CPM includes 8 KB dual-port RAM and 16 SDMA channels, enabling autonomous frame handling without CPU intervention.

Key Specifications

Pinout & Package

Package: 357-ball plastic ball grid array (PBGA), ZQ/VR designation (Case No. 5058), 25 × 25 × 1.2 mm, 1.27 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC860T and MPC855T, the MPC860SRVR50D4-NXP uniquely balances dual Ethernet support, full UTOPIA ATM compliance, and 50 MHz deterministic performance - making it optimal for telecom gateway upgrades requiring backward compatibility and multi-protocol concurrency without sacrificing thermal headroom.

Availability

MPC860SRVR50D4-NXP is available at Aetrix Electronics and suitable for telecom infrastructure, industrial protocol conversion, and legacy network equipment requiring stable component supply across extended product lifecycles.

Supply support for MPC860SRVR50D4-NXP 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 applications, with deep heritage in Power Architecture™ microcontrollers.

The MPC860 family was designed specifically for embedded communications controllers in telecom access, industrial networking, and protocol bridging - emphasizing real-time determinism, peripheral integration, and long-term manufacturability.

FAQ

What is the maximum supported bus frequency for MPC860SRVR50D4-NXP?

The MPC860SRVR50D4-NXP supports a maximum bus frequency of 66 MHz. However, at its rated 50 MHz core clock, the device operates in 2:1 mode - meaning the bus runs at 25 MHz. This configuration ensures timing compliance per Table 7 in the hardware specification, where setup/hold margins are validated for 25 MHz bus operation with 50 MHz core.

Does MPC860SRVR50D4-NXP support IEEE 802.3u 100BASE-TX Ethernet?

Yes, MPC860SRVR50D4-NXP supports full IEEE 802.3u 100BASE-TX Ethernet via its SCCs, as confirmed in Section 2 ("Features") and Table 1 of the hardware specification. All four SCCs can be configured for 10/100 Mbps Ethernet MAC functionality, though physical layer interface requires external PHY connected to MII signals (MII_TXD[0:3], MII_RXD[0:3], MII_MDC, MII_MDIO).

What package type and pin count does MPC860SRVR50D4-NXP use?

MPC860SRVR50D4-NXP uses a 357-ball plastic ball grid array (PBGA) package with ZQ/VR designation (Case No. 5058), measuring 25 × 25 × 1.2 mm with 1.27 mm pitch. This matches the "VR" suffix in the part number and is documented in Table 3 ("Package Description") of the hardware specification.

Can MPC860SRVR50D4-NXP operate with a 5 V input voltage on I/O pins?

Yes - MPC860SRVR50D4-NXP I/O pins (except EXTAL and EXTCLK) tolerate up to 5.5 V input high voltage (VIH), as specified in Table 6. However, the absolute maximum input voltage must not exceed VDDH + 2.5 V, and VDDH must be powered before applying 5 V signals to prevent latch-up or damage.

Is MPC860SRVR50D4-NXP pin-compatible with other MPC860 family members?

MPC860SRVR50D4-NXP shares the same 357-pin PBGA footprint and core pinout as other ZQ/VR-packaged MPC860 variants (e.g., MPC860T, MPC860P), including identical power, clock, bus, and peripheral signal assignments. Differences exist only in internal feature enablement (e.g., ATM support, cache size), not pin function or layout.