NXP Semiconductors MPC8260AZUPIBB

Overview

MPC8260AZUPIBB from NXP Semiconductors (formerly Freescale) is a PowerQUICC™ II integrated communications processor featuring a dual-issue EC603e core operating up to 300 MHz, 16 KB instruction and 16 KB data caches, and a dedicated 32-bit RISC communications processor module (CPM). It integrates 60x and local buses, PCI bridge (not on all variants), FCC/SCC/SMC serial controllers, TDM interfaces, and hardware TC-layer support for ATM IMA. It targets carrier-grade telecom edge routers and multi-service access platforms.

For engineers reviewing the MPC8260AZUPIBB datasheet, MPC8260AZUPIBB pinout, MPC8260AZUPIBB application, or MPC8260AZUPIBB equivalent, this page delivers verified technical context, validated package mapping, confirmed pin functions, real-world use cases in TDM/Ethernet/ATM systems, and two rigorously cross-checked alternative parts with documented functional and architectural differences.

Technical Context

The MPC8260AZUPIBB implements a split-clock architecture with independent PLLs for the G2 core (150–300 MHz) and CPM (up to 200 MHz), enabling power/performance optimization. Its CPM includes 32 KB dual-port RAM, four SCCs, two SMCs, one SPI, one I²C, three FCCs, two MCCs, and eight TDM ports - all programmable via microcode.

Hardware acceleration includes ATM TC-layer functions per ITU-T I.432 (cell HEC generation/correction, payload scrambling/descrambling, idle cell insertion/filtering), IEEE 802.3 MII Ethernet support, UTOPIA Level 2 interface, and integrated memory controller supporting SDRAM, SRAM, Flash, and EPROM with ECC/parity.

Key Specifications

Pinout & Package

Package: 480-ball TBGA (Thin Ball Grid Array), 27 mm × 27 mm, 1.0 mm ball pitch, RoHS-compliant. Thermal resistance θJA = 83 °C/W (4-layer board, 1 m/s airflow).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8260AZUPIBB, MPC8272AZUPJBB trades ATM TC-layer and UTOPIA for USB and higher CPU speed, while MPC8360EVRAGDB replaces CPM with QUICC Engine and drops TDM entirely - making MPC8260AZUPIBB uniquely suited for brownfield telecom infrastructure requiring hardware-assisted TDM/ATM convergence.

Availability

MPC8260AZUPIBB is available at Aetrix Electronics and suitable for DSLAM line cards, VoIP gateways, wireless backhaul units, and industrial protocol converters requiring stable component supply across extended product lifecycles.

Supply support for MPC8260AZUPIBB 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 communication markets, with roots in Freescale's PowerQUICC lineage.

The MPC8260AZUPIBB belongs to the PowerQUICC™ II family, designed specifically for carrier-class communications infrastructure requiring hardware-accelerated protocol processing, deterministic real-time performance, and long-term industrial temperature support.

FAQ

What is the maximum operating frequency of the MPC8260AZUPIBB core?

The MPC8260AZUPIBB features a PowerPC G2 (EC603e) core rated for operation up to 300 MHz. This frequency is achieved using internal clock multiplication ratios (e.g., 5:1 or 6:1) from a 50–60 MHz CLKIN source. The actual maximum depends on VDD (1.9–2.2 V) and ambient temperature (0–70 °C), with thermal derating required above 70 °C ambient. The MPC8260AZUPIBB datasheet specifies 300 MHz as the upper limit under nominal conditions.

Does the MPC8260AZUPIBB include a PCI interface?

No, the MPC8260AZUPIBB does not integrate a PCI bridge. While the broader MPC826xA family includes PCI support in the MPC8265 and MPC8266 variants, the MPC8260AZUPIBB is a member of the base MPC8260 subset and omits the PCI bridge block. System expansion relies on the 60x bus (for high-speed interconnect) and local bus (for slower peripherals), both managed by the on-chip memory controller.

What TDM protocols does the MPC8260AZUPIBB support natively?

The MPC8260AZUPIBB supports T1, E1, T3, E3, ISDN basic rate (BRI), ISDN primary rate (PRI), pulse code modulation highway, Freescale interchip digital link (IDL), and general circuit interface (GCI) - all implemented in hardware via its eight TDM ports and 2048-byte SI RAM. Frame synchronization, bit/byte resolution, and independent transmit/receive routing are configurable per port without CPU overhead.

How is the ATM TC-layer implemented in the MPC8260AZUPIBB?

The MPC8260AZUPIBB implements a full hardware TC-layer compliant with ITU-T I.432, including cell delineation (HEC checking), HEC error correction, payload scrambling/descrambling, coset generation/removal, idle cell insertion/filtering, and cell counters for performance monitoring. This functionality is tightly coupled to FCC2 and operates in UTOPIA Level 2 mode - eliminating software-based SAR processing and enabling line-rate ATM handling at 155 Mbps.

What is the package type and thermal specification for the MPC8260AZUPIBB?

The MPC8260AZUPIBB uses a 480-ball TBGA package (27 mm × 27 mm, 1.0 mm pitch) with θJA = 83 °C/W under 4-layer board and 1 m/s airflow conditions. Its junction temperature must not exceed 105 °C, requiring heatsink or forced-air cooling for power dissipation above 3 W at 70 °C ambient - as confirmed in the MPC8260AEC Rev. 2.0 datasheet Section 2.2 and Table 4.