NXP Semiconductors KMPC8275VRMIBA

Overview

KMPC8275VRMIBA from NXP Semiconductors (formerly Freescale) is a PowerQUICC II integrated communications processor featuring a dual-issue G2_LE Power Architecture core, three Fast Communication Controllers (FCCs), four Serial Communications Controllers (SCCs), and PCI bridge functionality. It operates at up to 450 MHz, integrates 16 KB instruction and 16 KB data caches, and supports 10/100 Ethernet via MII/RMII interfaces. It is used in carrier-grade edge routers and telecom access gateways requiring deterministic real-time packet processing.

For engineers reviewing the KMPC8275VRMIBA datasheet, KMPC8275VRMIBA pinout, KMPC8275VRMIBA application, or KMPC8275VRMIBA equivalent, key selection criteria include its 516-pin PBGA package, lead-free VR variant, 1.45–1.60 V core supply, 3.135–3.465 V I/O supply, and support for FCC-based ATM/HDLC/Ethernet protocols with TDM interface capability.

Technical Context

The KMPC8275VRMIBA implements a split-clock architecture with independent PLLs for the G2_LE core and Communications Processor Module (CPM), enabling asynchronous operation at optimized frequencies-e.g., 450 MHz core with 233 MHz CPM. Its CPM includes dedicated RISC microcontroller, 32 KB dual-port RAM, and serial DMA channels for protocol offload.

It features a 64-bit 60x bus (up to 100 MHz), 32-bit local bus (up to 100 MHz), and PCI 2.2-compliant bridge supporting 66 MHz operation. The device supports UTOPIA II (on MPC8275VR variants), two multichannel controllers (MCCs), eight TDM interfaces, and USB 2.0 full/low-speed host/slave modes-all verified for the VR package family per MPC8280EC Rev. 2.

Key Specifications

Pinout & Package

KMPC8275VRMIBA is housed in a 516-ball plastic ball grid array (PBGA) package with 1.0 mm ball pitch, lead-free finish, and thermal pad on underside. Pinout follows the VR package definition in Table 2 of MPC8280EC Rev. 2, with dedicated banks for 60x bus (D[0–63], A[0–31]), local bus (L_A[14–31], LCL_D[0–31]), PCI (AD[0–31], C/BE[0–3]), FCC/SCC/TDM I/O (PA[0–31], PB[4–31], PC[0–31], PD[4–31]), and power/ground (VDD, VDDH, GND).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8280VRMIBA, KMPC8275VRMIBA delivers identical core performance and FCC/SCC functionality but omits TC/IMA - reducing BOM cost by ~12% and junction temperature by 8°C under equivalent load. Versus MPC8270VRMIBA, it adds UTOPIA II and four extra TDM ports - enabling migration from legacy T1/E1 to hybrid ATM/IP access nodes.

Availability

KMPC8275VRMIBA is available at Aetrix Electronics and suitable for carrier-grade edge routers, VoIP gateways, and industrial protocol converters requiring stable component supply across extended product lifecycles.

Supply support for KMPC8275VRMIBA 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

NXP Semiconductors is a global semiconductor company formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and networking markets.

KMPC8275VRMIBA belongs to the PowerQUICC II family, designed specifically for embedded communications infrastructure requiring real-time protocol offload, multi-interface integration, and long-term industrial temperature support.

FAQ

What is the maximum operating frequency of the KMPC8275VRMIBA core?

The KMPC8275VRMIBA supports a maximum core frequency of 450 MHz, achieved using internal PLL multiplication ratios up to 8:1 from a 33–100 MHz CLKIN source. This rating is validated at junction temperatures ≤105°C and VDD = 1.45–1.60 V per MPC8280EC Rev. 2 Section 2.

Does KMPC8275VRMIBA support UTOPIA II interfaces?

Yes, KMPC8275VRMIBA supports UTOPIA II Level 2 interfaces as confirmed in Table 1 and Figure 1 notes of MPC8280EC Rev. 2, which explicitly list UTOPIA II Ports = 2 for MPC8275VR. This capability is exclusive to VR and ZQ package variants-not available on ZU/VV packages or MPC8270.

What are the power supply requirements for KMPC8275VRMIBA?

KMPC8275VRMIBA requires three regulated supplies: VDD = 1.45–1.60 V (core), VCCSYN = 1.45–1.60 V (PLL), and VDDH = 3.135–3.465 V (I/O). Per Section 2 of MPC8280EC Rev. 2, VDD/VCCSYN must not exceed VDDH by more than 0.4 V during normal operation, and sequencing mandates VDD/VCCSYN ramp before or simultaneously with VDDH.

How many TDM interfaces does KMPC8275VRMIBA support?

KMPC8275VRMIBA supports eight TDM interfaces, implemented across two groups of four TDM channels each. This is confirmed in Figure 1 notes and Section 1.1 Features of MPC8280EC Rev. 2, which state "MPC8275VR… has two groups of four TDM channels for a total of eight TDMs."

Is KMPC8275VRMIBA pin-compatible with MPC8280VRMIBA?

No, KMPC8275VRMIBA is not pin-compatible with MPC8280VRMIBA. Although both use the 516-pin VR package, MPC8280VRMIBA allocates additional balls to TC layer, IMA, and second MCC signals absent in KMPC8275VRMIBA. Pinout differences are documented in Section 8 (Pinout) of MPC8280EC Rev. 2, confirming distinct signal mappings.