NXP Semiconductors KMPC8270CZUQLDA

Overview

KMPC8270CZUQLDA 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), and PCI bridge support - all in a 480-pin TBGA package. It targets embedded networking applications including industrial gateways, telecom access equipment, and protocol-aware edge routers requiring deterministic real-time packet processing.

For engineers reviewing the KMPC8270CZUQLDA datasheet, KMPC8270CZUQLDA pinout, KMPC8270CZUQLDA application, or KMPC8270CZUQLDA equivalent, key selection considerations include its 166–450 MHz CPU frequency range, separate PLLs for core and CPM, 3× 10/100-Mbps Ethernet via MII/RMII, single MCC supporting up to 128 × 64-kbps TDM channels, and leaded ZU package compatibility with legacy reflow profiles.

Technical Context

The KMPC8270CZUQLDA integrates a 32-bit G2_LE microprocessor core with MMU and FPU, coupled to a dedicated 32-bit RISC Communications Processor Module (CPM) executing protocol stacks independently. Core and CPM operate on separate PLLs, enabling asynchronous clock domains - e.g., 450 MHz core with 233 MHz CPM - optimizing power/performance trade-offs in mixed-workload systems.

It supports three FCCs for Ethernet/HDLC/ATM (excluding ATM SAR on MPC8270), one MCC for TDM multiplexing, four SCCs compatible with UART/HDLC/SDLC/BISYNC, USB 2.0 full/low-speed host/slave, I²C, SPI, and eight independent baud rate generators. Memory subsystem includes 64-bit 60x bus (up to 100 MHz), 32-bit local bus (up to 100 MHz), and 12-bank controller for SDRAM/Flash/SRAM.

Key Specifications

Pinout & Package

KMPC8270CZUQLDA uses a 480-ball thin BGA (TBGA) package with leaded solder balls (ZU variant), 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, optimized for conduction-cooled industrial PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8275CZUQLDA and MPC8280CZUQLDA, KMPC8270CZUQLDA provides identical G2_LE core performance, cache, FCC/SCC count, and PCI bridge - but omits UTOPIA, TC layer, and IMA, resulting in lower thermal design power (1.05 W nominal vs. 1.35 W) and reduced software complexity for non-ATM applications.

Availability

KMPC8270CZUQLDA is available at Aetrix Electronics and suitable for industrial gateways, telecom access nodes, and secure edge routers requiring stable component supply, long-lifecycle support, and qualified automotive/industrial temperature grade availability.

Supply support for KMPC8270CZUQLDA 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) is a fabless semiconductor company specializing in embedded processing, connectivity, and analog solutions for automotive, industrial, and networking markets.

KMPC8270CZUQLDA belongs to the PowerQUICC II family - designed specifically for cost-sensitive, high-reliability communications infrastructure where integrated protocol acceleration, deterministic real-time response, and multi-standard interface consolidation are critical.

FAQ

What is the maximum operating frequency of the KMPC8270CZUQLDA CPU core?

The KMPC8270CZUQLDA CPU core - a G2_LE implementation compliant with Power Architecture® - operates at frequencies ranging from 166 MHz to 450 MHz. This range is achieved via an internal core/bus clock multiplier supporting ratios of 2:1 through 8:1 relative to the CLKIN input frequency. The 450 MHz maximum is validated at junction temperature ≤105°C with VDD = 1.45–1.60 V.

Does KMPC8270CZUQLDA support ATM SAR functionality?

No, KMPC8270CZUQLDA does not support ATM Segmentation and Reassembly (SAR). While it includes Fast Communication Controllers (FCCs) capable of HDLC and transparent modes, ATM SAR is explicitly excluded per the MPC8280EC documentation, which states "no ATM support for the MPC8270." This functionality is present only in MPC8280 and MPC8275 variants.

What package type and dimensions does KMPC8270CZUQLDA use?

KMPC8270CZUQLDA uses a 480-ball thin BGA (TBGA) package designated "ZU" - a leaded variant with 1.27 mm ball pitch and 27 mm × 27 mm body size. It is distinct from the lead-free VV package and the 516-ball PBGA variants (VR/ZQ), and is specified for industrial temperature range (0°C to 70°C ambient).

How many Ethernet MACs does KMPC8270CZUQLDA integrate?

KMPC8270CZUQLDA integrates three 10/100-Mbps Ethernet MACs implemented within its Fast Communication Controllers (FCC1–FCC3). Each supports Media Independent Interface (MII) or Reduced MII (RMII), enabling direct connection to external PHYs. All three operate concurrently and are fully configurable via the CPM microcode and register set.

Is KMPC8270CZUQLDA pin-compatible with MPC8280CZUQLDA?

KMPC8270CZUQLDA and MPC8280CZUQLDA share the same 480-pin ZU TBGA package and mechanical footprint, but are not functionally pin-compatible. MPC8280CZUQLDA repurposes several pins for UTOPIA II, TC layer, and second MCC signals - which are NC or GPIO on KMPC8270CZUQLDA. PCB layout reuse requires verification of signal mapping per each variant's pinout table.