NXP Semiconductors KMPC8280CZUUPEA

Overview

KMPC8280CZUUPEA from Freescale Semiconductor is a PowerQUICC II integrated communications processor featuring a dual-issue G2_LE core (Power Architecture®-compliant), 16 KB instruction and 16 KB data caches, three Fast Communication Controllers (FCCs), four Serial Communications Controllers (SCCs), two UTOPIA II ports, two Multichannel Controllers (MCCs), PCI bridge, USB 2.0 controller, and Transmission Convergence (TC) layer - deployed in carrier-grade TDM/E1/T1 gateways and ATM edge routers.

For engineers reviewing the KMPC8280CZUUPEA datasheet, KMPC8280CZUUPEA pinout, KMPC8280CZUUPEA application, or KMPC8280CZUUPEA equivalent, key selection criteria include FCC/SCC protocol support (HDLC, Ethernet MII/RMII, ATM SAR), TC-layer-enabled IMA functionality, 480-pin TBGA leaded package compatibility, and dual PLL clocking for independent core/CPM frequency scaling up to 450 MHz.

Technical Context

The KMPC8280CZUUPEA integrates a 32-bit G2_LE core with separate 16 KB I/D caches and an embedded 32-bit RISC communications processor (CPM) sharing dual-port RAM. Core and CPM operate on independent PLLs, enabling asynchronous clock domains - core at up to 450 MHz (via 2×–8× multiplier), CPM at up to 292 MHz (via 2×–8× multiplier).

It supports full-duplex ATM SAR at 155 Mbps via UTOPIA II, inverse multiplexing for ATM (IMA) across eight TC layers, and eight TDM interfaces routed through two SI blocks. The 60x bus operates at up to 100 MHz (64-bit), local bus at up to 100 MHz (32-bit), and PCI interface at 66 MHz (32-bit, 3.3 V), all with configurable burst transfers and ECC/parity support.

Key Specifications

Pinout & Package

KMPC8280CZUUPEA is housed in a 480-ball thin BGA (TBGA) package with leaded solder balls (ZU code), measuring 27 mm × 27 mm with 1.27 mm ball pitch. Thermal resistance is RθJA = 16 °C/W (natural convection, single-layer board) and RθJB = 6 °C/W (junction-to-board).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8275CVRP and MPC8360EVRAGDB, KMPC8280CZUUPEA uniquely delivers production-ready TC-layer IMA acceleration and eight TDM interfaces in a mature 0.13 µm process - making it irreplaceable for deployed carrier TDM aggregation systems requiring long-term component stability and verified thermal performance at 105°C junction.

Availability

KMPC8280CZUUPEA is available at Aetrix Electronics and suitable for DSLAM line cards, E1/T1 aggregation gateways, ATM edge routers, and industrial protocol gateways requiring stable component supply across extended product lifecycles.

Supply support for KMPC8280CZUUPEA 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

Freescale Semiconductor (now part of NXP Semiconductors) was a fabless semiconductor company specializing in embedded processors, analog, and connectivity solutions for automotive, industrial, and networking markets.

KMPC8280CZUUPEA belongs to the PowerQUICC II family - designed specifically for carrier-class communications infrastructure requiring hardware-accelerated TDM, ATM, and packet processing in thermally constrained environments.

FAQ

What is the maximum operating junction temperature for KMPC8280CZUUPEA?

The maximum rated junction temperature for KMPC8280CZUUPEA is 105°C under recommended operating conditions (Table 4). This limit applies to commercial temperature grade devices; extended temperature variants support –40°C to 105°C ambient. Exceeding 105°C risks permanent parametric shift or functional failure. Thermal design must use RθJA = 16°C/W (480 TBGA, natural convection) to ensure safe margin under worst-case power dissipation of 1.65 W.

Does KMPC8280CZUUPEA support USB 2.0 host mode with isochronous transfers?

Yes, KMPC8280CZUUPEA supports USB 2.0 full-speed (12 Mbps) and low-speed (1.5 Mbps) host mode, including isochronous transfers. Its USB controller implements CRC16 generation/checking, NRZI encoding/decoding with bit stuffing, and flexible multi-buffer frame handling - confirmed in Section 1.1 of MPC8280EC Rev. 2. Low-speed operation requires an external hub, and isochronous endpoints are fully supported in both host and slave modes.

Is KMPC8280CZUUPEA pin-compatible with other MPC8280 variants like KMPC8280CVVUPEA?

No, KMPC8280CZUUPEA is not pin-compatible with KMPC8280CVVUPEA. KMPC8280CZUUPEA uses the ZU package (480-pin leaded TBGA), while KMPC8280CVVUPEA uses the VV package (480-pin lead-free TBGA). Though ball count and footprint are identical, solder sphere composition and reflow profiles differ - requiring distinct assembly validation. Both share identical pin functions per Table 8 (Pinout), but mechanical and thermal assembly rules are not interchangeable.

What clock configuration enables 450 MHz core operation on KMPC8280CZUUPEA?

KMPC8280CZUUPEA achieves 450 MHz core frequency using an 8× internal core/bus clock multiplier with a 56.25 MHz CLKIN signal (56.25 MHz × 8 = 450 MHz), as specified in Table 7 and Section 7.1 of MPC8280EC Rev. 2. This requires programming the SPCR[MDIS] and SPCR[MP] bits to select the 8× ratio, and ensuring VDD = 1.55–1.60 V and ambient temperature ≤ 70°C to maintain stability. The CPM clock remains independently configurable.

Can KMPC8280CZUUPEA operate without external SDRAM when using only internal SRAM?

No, KMPC8280CZUUPEA has no internal SRAM for application code execution. It relies entirely on external memory via its 12-bank memory controller - supporting SDRAM, DDR, SRAM, Flash, and EPROM. The only on-chip RAM is 32 KB dual-port instruction RAM and 32 KB dual-port data RAM dedicated to the CPM coprocessor. Application code for the G2_LE core must reside in external memory; boot ROM is mask-programmed and not user-accessible.