NXP Semiconductors KMPC8270ZQMIBA

Overview

KMPC8270ZQMIBA 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) supporting 10/100-Mbit Ethernet via MII/RMII, four Serial Communications Controllers (SCCs), one USB 2.0 full/low-speed controller, and PCI bridge compliant with PCI Specification Revision 2.2 - deployed in carrier-grade edge routers and industrial protocol gateways.

For engineers reviewing the KMPC8270ZQMIBA datasheet, KMPC8270ZQMIBA pinout, KMPC8270ZQMIBA application, or KMPC8270ZQMIBA equivalent, this page delivers verified package mapping (516-pin PBGA, ZQ lead-sphere variant), confirmed thermal resistance (RθJA = 19°C/W on 4-layer board), validated clock configuration support (core up to 450 MHz, CPM up to 292 MHz), and real-world timing constraints for FCC/SCC I/O interfaces under 66–100 MHz bus operation.

Technical Context

The KMPC8270ZQMIBA integrates a 32-bit G2_LE microprocessor core with separate PLLs for core and Communications Processor Module (CPM), enabling independent frequency scaling (e.g., 450 MHz core / 292 MHz CPM). Its CPM includes a 32 KB dual-port instruction RAM and 32 KB dual-port data RAM, interfacing via DMA to four SCCs and three FCCs.

It supports 32-bit local bus (up to 100 MHz), 64-bit 60x bus (up to 100 MHz), and PCI bus (32-bit, 66 MHz), with memory controller glueless support for SDRAM, SRAM, Flash, and EPROM. The device lacks UTOPIA II ports, TC layer, IMA, and second MCC - distinguishing it from MPC8280 and confirming its role as a cost-optimized, TDM-constrained communications processor.

Key Specifications

Pinout & Package

KMPC8270ZQMIBA is housed in a 516-ball plastic ball grid array (PBGA) package with ZQ designation (lead-sphere solder balls), measuring 27 mm × 27 mm × 1.7 mm (height), RoHS-compliant and designed for reflow soldering per IPC/JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8275VR and MPC8280VV, KMPC8270ZQMIBA provides identical G2_LE core performance and CPM peripheral count at lower thermal density and cost, but omits UTOPIA II, TC layer, and IMA - making it the most efficient choice for non-ATM, single-MCC industrial and access networking applications.

Availability

KMPC8270ZQMIBA is available at Aetrix Electronics and suitable for industrial protocol gateways, DSL/cable edge routers, secure RTUs, and TSN bridges requiring stable component supply across extended product lifecycles.

Supply support for KMPC8270ZQMIBA 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.

KMPC8270ZQMIBA belongs to the PowerQUICC II family - designed specifically for cost-sensitive, high-reliability communications infrastructure requiring integrated protocol acceleration, real-time determinism, and long-term manufacturability in harsh environments.

FAQ

What is the maximum operating frequency of the KMPC8270ZQMIBA core?

The KMPC8270ZQMIBA core supports a maximum frequency of 450 MHz, achieved using an 8:1 internal clock multiplier with a 56.25 MHz CLKIN reference. This is confirmed in Section 1.1 "Features" of the MPC8280EC Rev. 2 datasheet, which explicitly states "System core microprocessor supporting frequencies of 166–450 MHz" for all HiP7 PowerQUICC II devices including KMPC8270ZQMIBA.

Does KMPC8270ZQMIBA support USB 2.0 host mode with isochronous transfers?

Yes, KMPC8270ZQMIBA supports USB 2.0 full/low-speed host mode with control, bulk, interrupt, and isochronous data transfers. The datasheet confirms CRC16 generation/checking, NRZI encoding/decoding with bit stuffing, and flexible frame-based buffering - all required for isochronous audio/video streaming in host configurations.

What package type and pin count does KMPC8270ZQMIBA use?

KMPC8270ZQMIBA uses a 516-ball plastic ball grid array (PBGA) package with ZQ designation (lead-sphere solder balls), as specified in Table 2 "HiP7 PowerQUICC II Device Packages" of the MPC8280EC Rev. 2 document. This matches the "ZQMIBA" suffix, where "ZQ" denotes the 516-PBGA lead-sphere variant.

Can KMPC8270ZQMIBA operate with a 3.3 V I/O supply while running the core at 1.5 V?

Yes, KMPC8270ZQMIBA requires separate supplies: VDD = 1.45–1.60 V for the core/PLL and VDDH = 3.135–3.465 V for I/O, as defined in Table 4 "Recommended Operating Conditions". The datasheet cautions that VDDH must not exceed VDD by more than 2.5 V during normal operation, fully supporting 3.3 V I/O with 1.5 V core.

Does KMPC8270ZQMIBA include a hardware security engine (SEC)?

No, KMPC8270ZQMIBA does not include a Security Engine (SEC). Table 1 "MPC8280 PowerQUICC II Family Functionality" explicitly lists SEC support as "-" for MPC8270, distinguishing it from later PowerQUICC II Pro (MPC83xx) and QorIQ families. Cryptographic acceleration must be implemented externally or in software.