NXP Semiconductors MPC8280CZUQLDA

Overview

MPC8280CZUQLDA from NXP (formerly Freescale) is a PowerQUICC II integrated communications processor featuring a 450 MHz G2_LE Power Architecture core, dual 16 KB I/D caches, three Fast Communication Controllers (FCCs), four Serial Communications Controllers (SCCs), and integrated PCI bridge, UTOPIA II, USB 2.0, and TC/IMA layers - deployed in carrier-grade DSLAMs, enterprise routers, and TDM-over-IP gateways.

For engineers reviewing the MPC8280CZUQLDA datasheet, MPC8280CZUQLDA pinout, MPC8280CZUQLDA application, or MPC8280CZUQLDA equivalent, this page delivers verified electrical specs, thermal resistance values, clock configuration modes, FCC/SCC timing constraints, and package-specific layout guidance for high-reliability communications infrastructure design.

Technical Context

The MPC8280CZUQLDA integrates a dual-issue G2_LE core with separate PLLs for CPU (up to 450 MHz) and CPM (up to 292 MHz), enabling independent frequency scaling for power/performance optimization. Its 60x bus operates at up to 100 MHz with 64-bit data width and ECC/parity support, while the local bus runs at up to 100 MHz with 32-bit data and eight-beat burst capability.

It embeds a full-featured Communications Processor Module (CPM) with 32 KB dual-port RAM/ROM, supporting 3× FCCs (10/100 Ethernet via MII/RMII, ATM SAR over UTOPIA II), 4× SCCs (HDLC/UART/SDLC), 2× MCCs (128-channel TDM), 8× TDM interfaces, and dedicated TC/IMA hardware - all confirmed for the ZU package variant per MPC8280EC Rev. 2.

Key Specifications

Pinout & Package

480-pin TBGA (ZU package), leaded, 27 mm × 27 mm footprint, 1.0 mm ball pitch. Pinout validated per MPC8280EC Rev. 2 Section 8 ("Pinout") and Table 2 ("HiP7 PowerQUICC II Device Packages").

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8275VR and MPC8360EVRAGDB, the MPC8280CZUQLDA uniquely delivers hardware TC/IMA acceleration and dual SI blocks for 8 TDM ports - making it irreplaceable in carrier-class DSLAMs and IMA-based backhaul where deterministic ATM cell timing is mandatory.

Availability

MPC8280CZUQLDA is available at Aetrix Electronics and suitable for DSLAM line cards, enterprise router control planes, TDM-over-IP gateways, and carrier Ethernet access nodes requiring stable component supply across extended product lifecycles.

Supply support for MPC8280CZUQLDA 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 leader in secure connectivity solutions for automotive, industrial, and communications markets, formed from the spin-off of Freescale Semiconductor in 2015.

The MPC8280CZUQLDA belongs to the PowerQUICC II family - designed specifically for carrier-grade communications infrastructure requiring hardware-accelerated ATM, TDM, and Ethernet protocol processing in thermally constrained environments.

FAQ

What is the maximum operating frequency of the MPC8280CZUQLDA CPU core?

The MPC8280CZUQLDA CPU core is rated for a maximum frequency of 450 MHz, achieved using the internal core/bus clock multiplier (ratios up to 8:1) with a 56.25 MHz CLKIN. This is confirmed in Section 1.1 "Features" of MPC8280EC Rev. 2, which states "System core microprocessor supporting frequencies of 166–450 MHz." The MPC8280CZUQLDA achieves this speed under recommended operating conditions: VDD = 1.45–1.60 V and junction temperature ≤ 105°C.

Does the MPC8280CZUQLDA support USB 2.0 host mode with isochronous transfers?

Yes, the MPC8280CZUQLDA supports USB 2.0 full/low-speed host mode with control, bulk, interrupt, and isochronous data transfers - explicitly documented in Section 1.1 "Features" of MPC8280EC Rev. 2. It includes CRC16 generation/checking, NRZI encoding/decoding with bit stuffing, and flexible frame-based buffers. Isochronous transfers operate at 12 Mbps (full-speed) and are used for time-critical applications like VoIP endpoint management.

What thermal resistance value applies to the MPC8280CZUQLDA in natural convection on a single-layer board?

The MPC8280CZUQLDA in the ZU (480 TBGA) package has a junction-to-ambient thermal resistance (RθJA) of 16°C/W under natural convection on a single-layer board, as specified in Table 6 "Thermal Characteristics" of MPC8280EC Rev. 2. This value assumes no thermal vias and is used to estimate junction temperature: TJ = TA + (16 × PD). For reliable operation at 450 MHz, ambient temperature must be limited to ensure TJ ≤ 105°C.

Which communication peripherals are exclusive to the MPC8280CZUQLDA versus the MPC8270 or MPC8275?

The MPC8280CZUQLDA uniquely includes the Transmission Convergence (TC) layer and Inverse Multiplexing for ATM (IMA) capabilities - absent in MPC8270 and MPC8275 variants per Figure 1 notes and Table 1 "Functionality." It also provides two multichannel controllers (MCCs) and eight TDM interfaces, whereas MPC8270/MPC8275 offer only one MCC and four TDM ports. These features are confirmed for the ZU package in MPC8280EC Rev. 2.

What are the voltage sequencing requirements for powering the MPC8280CZUQLDA?

The MPC8280CZUQLDA requires strict voltage sequencing: VDD and VCCSYN (1.45–1.60 V) must be raised before or simultaneously with VDDH (3.135–3.465 V) during power-on reset. Per Section 2 "Operating Conditions," VDD/VCCSYN may exceed VDDH by >0.4 V for ≤100 ms only during reset; in normal operation, VDDH must not exceed VDD/VCCSYN by more than 2.5 V. Violation risks latch-up or permanent damage.