NXP Semiconductors MPC8260AZUPJDB-NXP

Overview

MPC8260AZUPJDB from NXP (formerly Freescale) is a PowerQUICC™ II integrated communications processor featuring a dual-issue EC603e core running up to 300 MHz, a dedicated 32-bit communications processor module (CPM), and support for 10/100-Mbit Ethernet via MII, ATM over UTOPIA, HDLC, UART, SPI, I²C, and eight TDM interfaces. It targets carrier-grade telecom edge routers, multi-service access platforms, and industrial gateways requiring deterministic real-time protocol offload.

For engineers reviewing the MPC8260AZUPJDB datasheet, MPC8260AZUPJDB pinout, MPC8260AZUPJDB application, or MPC8260AZUPJDB equivalent, this page delivers verified electrical specs (1.7–2.24 V core, 3.135–3.465 V I/O), thermal resistance (θJA = 83 °C/W on 4-layer board), CPM clocking architecture, 60x-to-PCI bridge capability (MPC8265/8266 variants), and confirmed package mapping to 480-pin TBGA.

Technical Context

The MPC8260AZUPJDB implements a split-clock architecture with independent PLLs for the G2 core (150–300 MHz) and CPM (up to 208 MHz), enabling power/performance optimization. Its CPM executes protocol stacks-including ATM AAL5, HDLC at T3 rates, and ISDN PRI/BRI-via microcode-driven serial controllers (FCCs, SCCs, SMCs) and hardware-accelerated TC layers for IMA.

It integrates a 12-bank memory controller supporting SRAM, SDRAM, Flash, and EPROM with ECC/parity, a 64-bit 60x bus (up to 266 MHz), a 32-bit local bus (up to 83 MHz), and IEEE 1149.1 JTAG test access. The SIU provides RTC, watchdog, periodic timer, and clock synthesis-all synchronized to a single CLKIN reference.

Key Specifications

Pinout & Package

480-pin TBGA (Thin Ball Grid Array), 27 mm × 27 mm body, 1.27 mm ball pitch, JEDEC MO-205AC compliant. Thermal pad on underside requires solder paste stencil aperture and ground plane connection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8260AZUPJDB, MPC8272AZUQJDB trades telecom-specific TC-layer hardware for higher CPU throughput, while MPC8360EVRAGDB replaces the CPM with a security-enhanced e300 core - making MPC8260AZUPJDB uniquely suited for cost-sensitive, standards-compliant ATM/HDLC/TDM deployments.

Availability

MPC8260AZUPJDB is available at Aetrix Electronics and suitable for DSL aggregation gateways, carrier Ethernet edge routers, industrial protocol gateways, and secure remote terminal units requiring stable component supply across long-lifecycle telecom infrastructure programs.

Supply support for MPC8260AZUPJDB 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, headquartered in Eindhoven, Netherlands, designs high-performance mixed-signal ICs for automotive, industrial, and networking markets with emphasis on functional safety and long-term supply assurance.

The MPC8260AZUPJDB belongs to the PowerQUICC™ II family, engineered specifically for carrier-class communications equipment requiring hardware-accelerated protocol processing, deterministic real-time response, and multi-standard interface integration.

FAQ

What is the maximum operating junction temperature for MPC8260AZUPJDB?

The maximum rated junction temperature for MPC8260AZUPJDB is 105 °C under continuous operation. This limit assumes proper PCB thermal design - including a 4-layer board with internal VDDH/GND planes and ≥8 thermal vias under the package - and must be validated using TJ = TA + (PD × θJA), where θJA = 83 °C/W for the 480 TBGA package.

Does MPC8260AZUPJDB support PCI Express or only legacy PCI?

MPC8260AZUPJDB supports only PCI Specification Revision 2.2 (32-bit, 33/66 MHz) - not PCI Express. Its integrated 60x-to-PCI bridge is compliant with PCI 2.2 and includes four DMA channels, configuration registers, and I2O standard support. PCI Express capability was introduced in later PowerQUICC III generations.

Can MPC8260AZUPJDB operate without external SDRAM?

Yes, MPC8260AZUPJDB can operate without external SDRAM by configuring the memory controller for SRAM, Flash, or ROM-only boot. Its 12-bank controller supports glueless interfaces to these memories, and the on-chip 32 KB dual-port RAM allows basic CPM operation. However, full Linux or VxWorks execution typically requires external SDRAM.

Is the MPC8260AZUPJDB pinout compatible with other MPC826xA family members?

MPC8260AZUPJDB shares the same 480-pin TBGA footprint and signal assignment with MPC8265 and MPC8266, but differs from MPC8255 and MPC8264 in FCC count, TC-layer presence, and PCI bridge inclusion. Pin compatibility is guaranteed only within the same variant group - always verify against the specific device's pin multiplexing table before PCB layout.

What clock sources does the MPC8260AZUPJDB CPM require?

The MPC8260AZUPJDB CPM requires two clock inputs: a primary CLKIN (33–100 MHz) feeding its internal PLL, and up to 20 dedicated input clock pins (e.g., BRG_OUT, SCC_CLK) for individual serial controllers. The CPM PLL generates its own clock domain, decoupled from the G2 core clock - enabling independent frequency scaling for protocol engines.