NXP Semiconductors KMPC8270CZQMIBA

Overview

KMPC8270CZQMIBA 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 516-pin PBGA package with lead spheres (ZQ). It targets embedded networking gateways, industrial protocol converters, and telecom edge devices requiring deterministic real-time packet processing at up to 450 MHz.

For engineers reviewing the KMPC8270CZQMIBA datasheet, KMPC8270CZQMIBA pinout, KMPC8270CZQMIBA application, or KMPC8270CZQMIBA equivalent, key selection considerations include its 480-TBGA vs. 516-PBGA package distinction from MPC8280, absence of UTOPIA II and TC layer hardware, single multichannel controller (MCC), and 4-TDM-channel limitation - critical for TDM-based voice/data aggregation designs.

Technical Context

The KMPC8270CZQMIBA integrates a 32-bit G2_LE core with separate PLLs for CPU and CPM domains, enabling independent clock scaling (e.g., 450 MHz core / 200 MHz CPM). Its Communication Processor Module (CPM) executes protocol offload via dedicated RISC microcontroller, 32 KB dual-port RAM/ROM, and serial DMA channels - handling Ethernet (MII/RMII), HDLC, UART, and transparent serial protocols without CPU intervention.

It supports 32-bit local bus (up to 100 MHz), 64-bit 60x bus (up to 450 MHz), and PCI 2.2-compliant bridge (32-bit, 66 MHz, 3.3 V) with four DMA channels. Memory controller provides glueless interface to SDRAM, SRAM, Flash, and EPROM across 12 banks, with programmable timing, parity/ECC support, and byte-select capability for both 64-bit and 32-bit data paths.

Key Specifications

Pinout & Package

KMPC8270CZQMIBA uses a 516-ball plastic ball grid array (PBGA) package with lead-sphere terminations (ZQ code), measuring 27 mm × 27 mm × 1.7 mm. Ball pitch is 1.0 mm. The package supports lead-free assembly and is optimized for thermal conduction to the PCB via thermal balls connected to internal ground planes.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8280CZQMIBA, KMPC8270CZQMIBA reduces cost and power by omitting UTOPIA/IMA hardware while retaining full FCC/SCC/PCI functionality; compared with MPC8275CVRMIBA, it shares identical architecture but differs in RoHS status and ordering code - making KMPC8270CZQMIBA optimal for non-ATM, leaded-assembly industrial deployments.

Availability

KMPC8270CZQMIBA is available at Aetrix Electronics and suitable for VoIP gateways, industrial protocol converters, DSLAM line cards, and secure RTUs requiring stable component supply across extended product lifecycles.

Supply support for KMPC8270CZQMIBA 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.

KMPC8270CZQMIBA belongs to the PowerQUICC II family - designed specifically for cost-sensitive, real-time communications infrastructure requiring integrated protocol acceleration, deterministic I/O, and long-lifecycle support in carrier and industrial environments.

FAQ

What is the maximum operating frequency of the KMPC8270CZQMIBA CPU core?

The KMPC8270CZQMIBA CPU core supports frequencies from 166 MHz up to 450 MHz, depending on the selected core clock multiplier (2:1 through 8:1) and applied VDD voltage (1.45–1.60 V). At 450 MHz, it achieves 855 Dhrystone MIPS performance per the Freescale MPC8280EC specification document Rev. 2.

Does KMPC8270CZQMIBA support UTOPIA II interface or ATM SAR functionality?

No, KMPC8270CZQMIBA does not support UTOPIA II ports or ATM SAR hardware. These features are exclusive to the MPC8280 variant per Table 1 and Figure 1 notes in the MPC8280EC datasheet. KMPC8270CZQMIBA implements only Ethernet (MII/RMII), HDLC, and transparent serial protocols via its FCCs and SCCs.

What package type and pin count does KMPC8270CZQMIBA use?

KMPC8270CZQMIBA uses a 516-ball plastic ball grid array (PBGA) package with lead-sphere terminations (ZQ code), as confirmed in Table 2 of the MPC8280EC datasheet. This differs from the 480-TBGA packages used by MPC8280 and base MPC8270 variants.

How many TDM channels does KMPC8270CZQMIBA support, and what is the configuration?

KMPC8270CZQMIBA supports four TDM channels via a single multichannel controller (MCC), as stated in Figure 1 notes and Table 1. It lacks the second MCC and eight-TDM capability of the MPC8280, limiting its use to smaller-scale TDM aggregation such as four-channel E1/T1 trunking or basic VoIP gateway TDM interfaces.

Is KMPC8270CZQMIBA pin-compatible with MPC8280CZQMIBA?

No, KMPC8270CZQMIBA is not pin-compatible with MPC8280CZQMIBA. Although both use ZQ-coded 516-PBGA packages, their pinouts differ due to functional differences - KMPC8270CZQMIBA omits UTOPIA II pins, TC layer signals, and second MCC I/O, reallocating those balls to reserved or NC functions per the MPC8280EC pinout diagrams.