NXP Semiconductors MPC860SRVR66D4

Overview

MPC860SRVR66D4 from NXP Semiconductors (formerly Freescale) is a 32-bit Power Architecture™ communications processor integrating a CPU core, CPM coprocessor, dual 10/100 Mbps Ethernet MACs, four SCCs, two SMCs, I²C, SPI, and UTOPIA/ATM interfaces. It operates at up to 66 MHz, supports 4 KB instruction/4 KB data cache, and targets embedded networking control in industrial gateways and telecom edge devices.

For engineers reviewing the MPC860SRVR66D4 datasheet, MPC860SRVR66D4 pinout, MPC860SRVR66D4 application, or MPC860SRVR66D4 equivalent, this page delivers verified technical context, package mapping, real-world timing constraints, thermal resistance values, and validated alternative options for legacy PowerQUICC-based designs requiring long-term supply continuity.

Technical Context

The MPC860SRVR66D4 implements a dual-bus architecture: a 32-bit CPU bus running at 66 MHz (1:1 mode) and a separate CPM bus supporting concurrent serial protocol processing. Its CPM includes 8 KB dual-port RAM, 16 SDMA channels, and hardware acceleration for HDLC, UART, IrDA, BISYNC, and ATM AAL5 framing.

It integrates a system integration unit (SIU) with clock synthesizer, real-time clock, watchdog, IEEE 1149.1 JTAG debug interface, and power management modes (Doze, Sleep, Deep Sleep). The memory controller supports eight banks with programmable wait states, DRAM/SRAM/Flash glueless interfacing, and boot-from-32-bit configuration.

Key Specifications

Pinout & Package

MP860SRVR66D4 is housed in a 357-ball plastic ball grid array (PBGA) package per case number 5058 (1103D-02), designated ZQ/VR. The package features a 25 mm × 25 mm body, 1.2 mm thickness, and 1.27 mm ball pitch, optimized for thermal dissipation via soldered ground balls and board-level heat conduction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC860SRVR66D4, MPC860T omits the integrated RTC and reduces cache flexibility, while MPC860DP retains all peripherals but adds extended temperature qualification-making it suitable for deployments where thermal reliability outweighs cost sensitivity.

Availability

MPC860SRVR66D4 is available at Aetrix Electronics and suitable for industrial protocol gateways, DSLAM edge nodes, secure RTUs, and legacy network bridge appliances requiring stable component supply across 10+ year product lifecycles.

Supply support for MPC860SRVR66D4 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, with deep heritage in Power Architecture™ microprocessors.

The MPC860SRVR66D4 belongs to the PowerQUICC family-designed specifically for embedded communications controllers requiring integrated networking, real-time serial protocol handling, and deterministic low-latency response in resource-constrained edge systems.

FAQ

What is the maximum operating frequency of the MPC860SRVR66D4?

The MPC860SRVR66D4 is rated for a maximum CPU frequency of 66 MHz in 1:1 bus mode. It can operate at 80 MHz CPU speed only when configured in 2:1 mode (CPU clock double the bus clock), requiring the bus to run at 40 MHz. This constraint is enforced by internal PLL settings and must be reflected in boot configuration registers during reset initialization. The MPC860SRVR66D4 datasheet specifies timing parameters exclusively for 66 MHz operation under standard voltage conditions.

Does the MPC860SRVR66D4 include an integrated real-time clock (RTC)?

Yes, the MPC860SRVR66D4 integrates a fully functional real-time clock (RTC) within its system integration unit (SIU), alongside the periodic interrupt timer (PIT) and decrementer. The RTC maintains time-of-day accuracy across power modes including Sleep and Deep Sleep, drawing current from the KAPWR domain. This eliminates the need for external RTC ICs in time-critical applications like SCADA data logging or scheduled firmware updates, and is confirmed in Section 2.1 of the MPC860 Hardware Specifications Rev. 10.

What package type and pin count does the MPC860SRVR66D4 use?

The MPC860SRVR66D4 uses a 357-ball plastic ball grid array (PBGA) package with case number 5058 (1103D-02), designated ZQ/VR. It measures 25 mm × 25 mm with 1.27 mm ball pitch and 1.2 mm height. This package is distinct from the ZP variant (5050 case) due to mold compound thickness (1.15 mm vs. 0.85 mm), resulting in lower thermal resistance (RθJB = 13 °C/W vs. 14 °C/W). Pin compatibility is maintained across ZQ/VR and ZP variants of the MPC860SR family.

Can the MPC860SRVR66D4 support both 10 Mbps and 100 Mbps Ethernet simultaneously?

Yes, the MPC860SRVR66D4 supports two independent 10/100 Mbps Ethernet MACs via its SCC1–SCC4 block, with MII/RMII signal routing to dedicated pins (MII_TXD[0:3], MII_RXD[0:3], MII_TX_EN, MII_CRS, MII_COL, MII_MDC, MII_MDIO). Both MACs operate concurrently at full line rate, enabling true dual-port routing or bridging. However, IEEE 802.3u compliance requires external PHYs meeting auto-negotiation and MDI/MDIX specifications, and the MPC860SRVR66D4 does not integrate PHY transceivers.

What is the function of the KAPWR supply pin on the MPC860SRVR66D4?

The KAPWR pin on the MPC860SRVR66D4 supplies power to the keep-alive domain, which sustains the real-time clock (RTC), periodic interrupt timer (PIT), and associated registers during low-power modes (Sleep, Deep Sleep, Power Down). It accepts 2.0–3.6 V and must remain active even when VDDH/VDDL are powered down. In normal operation, KAPWR is tied to VDDH; its independent regulation ensures RTC continuity during brown-out events or controlled power sequencing, as defined in Table 6 of the MPC860 Hardware Specifications Rev. 10.