NXP Semiconductors KMPC8270VRMIBA

Overview

KMPC8270VRMIBA 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), PCI bridge, USB 2.0 controller, and one Multichannel Controller (MCC). It operates at up to 450 MHz and targets embedded networking gateways, industrial protocol converters, and telecom edge devices requiring deterministic real-time packet processing.

For engineers reviewing the KMPC8270VRMIBA datasheet, KMPC8270VRMIBA pinout, KMPC8270VRMIBA application, or KMPC8270VRMIBA equivalent, key selection considerations include its 516-pin PBGA (VR package), lead-free RoHS-compliant construction, 1.45–1.60 V core supply, 3.135–3.465 V I/O supply, and support for 10/100-Mbps Ethernet via MII/RMII interfaces - all critical for legacy PowerQUICC II migration and long-lifecycle industrial designs.

Technical Context

The KMPC8270VRMIBA integrates a G2_LE microprocessor core with separate PLLs for core and CPM domains, enabling independent clock scaling (e.g., 450 MHz core / 200 MHz CPM) to optimize power and throughput. Its Communications Processor Module (CPM) includes a 32-bit RISC co-processor, 32 KB dual-port instruction RAM, 32 KB dual-port data RAM, and dedicated serial DMA channels for FCC/SCC offloading.

It supports three FCCs for simultaneous 10/100-Mbps Ethernet (MII/RMII), HDLC, ATM SAR (via UTOPIA on MPC8280 only - not supported on KMPC8270VRMIBA), and transparent protocols; four SCCs compatible with UART, HDLC, BISYNC, and SDLC; and one MCC handling up to 128 × 64-kbps TDM channels - with only four TDM interfaces (not eight) and one SI block per the VR package specification.

Key Specifications

Pinout & Package

KMPC8270VRMIBA is housed in a 516-ball plastic ball grid array (PBGA) package with lead-free finish (VR code), measuring 27 mm × 27 mm × 1.7 mm. The package supports fine-pitch interconnect (0.8 mm ball pitch) and is optimized for thermal dissipation via solder-ball attachment to PCB ground planes.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8275VR and MPC8280VR, KMPC8270VRMIBA provides the lowest-cost PowerQUICC II entry point with full FCC/SCC/USB/PCI functionality but limited to one MCC and four TDM interfaces - making it optimal for cost-sensitive, non-ATM industrial gateways where TDM scale is capped at 128 channels.

Availability

KMPC8270VRMIBA is available at Aetrix Electronics and suitable for industrial protocol gateways, telecom edge nodes, secure routers, and embedded network management cards requiring stable component supply across extended product lifecycles.

Supply support for KMPC8270VRMIBA 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.

KMPC8270VRMIBA belongs to the PowerQUICC II family - designed specifically for integrated communications processing in resource-constrained, real-time embedded systems requiring both general-purpose compute and hardware-accelerated protocol handling.

FAQ

What is the maximum operating frequency of the KMPC8270VRMIBA core?

The KMPC8270VRMIBA features a G2_LE core rated for operation up to 450 MHz. This maximum frequency is achievable under recommended conditions: VDD = 1.45–1.60 V, ambient temperature ≤70°C, and proper thermal management using a four-layer PCB with ground plane. At 450 MHz, the core delivers 855 Dhrystone MIPS performance as validated in Freescale's SPEC95 benchmark testing.

Does KMPC8270VRMIBA support USB 2.0 host and device modes?

Yes, KMPC8270VRMIBA integrates a USB 2.0 controller supporting both host and slave (device) modes. In host mode, it supports control, bulk, interrupt, and isochronous transfers at 12 Mbps (full-speed) and 1.5 Mbps (low-speed), with automatic preamble generation. In slave mode, it provides four independent endpoints with CRC16/CRC5 checking, NRZI encoding/decoding, and automatic retransmission on error - all implemented in hardware without CPU overhead.

What package type and dimensions does KMPC8270VRMIBA use?

KMPC8270VRMIBA uses a 516-ball plastic ball grid array (PBGA) package with lead-free finish, designated as VR per Freescale's ordering nomenclature. Its physical dimensions are 27 mm × 27 mm × 1.7 mm with 0.8 mm ball pitch. The VR package shares footprint compatibility with MPC8275VR and MPC8280VR, enabling drop-in upgrades within the same socket design when board layout accommodates additional signal routing.

How many TDM interfaces does KMPC8270VRMIBA support, and what protocols are covered?

KMPC8270VRMIBA supports four TDM interfaces (TDM2[A–D]) via its single Serial Interface (SI) block. It handles T1, E1, T3/E3, ISDN basic and primary rate, Freescale IDL, GCI, and user-defined TDM serial protocols. Each interface supports bit- or byte-resolution data transfer, independent TX/RX routing, and frame synchronization - sufficient for up to 128 × 64-kbps channels through its single MCC.

Is KMPC8270VRMIBA pin-compatible with MPC8280VR or MPC8275VR?

KMPC8270VRMIBA is footprint-compatible with MPC8275VR and MPC8280VR in the VR package - all use identical 516-ball PBGA layouts and mechanical dimensions. However, electrical pin functions differ: KMPC8270VRMIBA lacks UTOPIA II pins, TC layer signals, and second MCC resources present on the higher-tier variants. Board-level compatibility requires verification of signal mapping and power delivery against each variant's specific pinout documentation.