NXP Semiconductors KMPC8265ACVVMIBC

Overview

KMPC8265ACVVMIBC from NXP Semiconductors (formerly Freescale) is a PowerQUICC™ II integrated communications processor featuring a dual-issue EC603e core, 32-bit CPM coprocessor, and integrated 60x-to-PCI bridge. It operates at up to 300 MHz core frequency, supports 32-bit local bus (up to 83 MHz) and 32-bit PCI bus (66 MHz, 3.3 V), and integrates four SCCs, two SMCs, SPI, I²C, three FCCs, two MCCs, and eight TDM interfaces - deployed in carrier-grade DSLAMs, enterprise routers, and telecom access gateways.

For engineers reviewing the KMPC8265ACVVMIBC datasheet, KMPC8265ACVVMIBC pinout, KMPC8265ACVVMIBC application, or KMPC8265ACVVMIBC equivalent, key selection criteria include confirmed 60x-to-PCI bridge support, FCC/SCC protocol flexibility (HDLC, Ethernet MII, UTOPIA), TDM channel count (8), CPM clock independence, and thermal performance in 480-pin TBGA packaging under industrial ambient conditions.

Technical Context

The KMPC8265ACVVMIBC implements a split-clock architecture with independent PLLs for its G2 core (150–300 MHz) and Communications Processor Module (CPM), enabling power/performance optimization. Its 60x bus provides 64-bit data width and supports burst transfers, ECC/parity memory protection, and multi-master arbitration.

It embeds a full-featured CPM with 32 KB dual-port RAM, virtual DMA, and hardware-accelerated TC-layer functions for ATM IMA (on FCC2 + TC path), plus dedicated serial interface logic for MII, UTOPIA Level 1/2, T1/E1, ISDN, and GCI protocols - all managed via microcode-executed firmware.

Key Specifications

Pinout & Package

KMPC8265ACVVMIBC is housed in a 480-ball thin quad flat no-lead (TBGA) package with 1.27 mm ball pitch and thermal pad. The package supports industrial temperature operation (–40°C to +105°C junction) and features dedicated power/ground ball arrays for core (VDD), PLL (VCCSYN), and I/O (VDDH) domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with KMPC8265ACVVMIBC, MPC8260AZUUPEA lacks PCI bridge functionality but offers lower power consumption, while MPC8266AZUUPEA extends TC-layer capability to FCC1 - making it preferable for systems requiring redundant ATM link handling or enhanced IMA scalability.

Availability

KMPC8265ACVVMIBC is available at Aetrix Electronics and suitable for carrier infrastructure, industrial networking, and telecom access equipment requiring stable component supply, long-lifecycle support, and industrial-temperature qualification.

Supply support for KMPC8265ACVVMIBC 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 leader focused on secure connectivity solutions for automotive, industrial, and communications markets, with deep heritage in Power Architecture® and networking IP.

KMPC8265ACVVMIBC belongs to the PowerQUICC™ II family - designed specifically for integrated communications processing in carrier-class edge devices, emphasizing protocol offload, deterministic I/O, and multi-standard serial interface consolidation.

FAQ

What is the maximum operating frequency of the KMPC8265ACVVMIBC core?

The KMPC8265ACVVMIBC supports a maximum core frequency of 300 MHz. This is achieved with a VDD supply of 1.9–2.2 V and junction temperature maintained at or below 105°C. At this speed, the G2 core delivers approximately 1.90 Dhrystone MIPS/MHz, enabling high-throughput packet classification and forwarding in telecom control-plane applications. The KMPC8265ACVVMIBC datasheet specifies timing margins and thermal derating curves for sustained operation.

Does KMPC8265ACVVMIBC include an integrated PCI interface?

Yes, KMPC8265ACVVMIBC includes a fully integrated 32-bit, 66 MHz, 3.3 V PCI bridge compliant with PCI Specification Revision 2.2. It supports both host and peripheral modes, features four dedicated DMA channels, and provides PCI-to-60x memory mapping. This eliminates the need for an external PCI bridge IC in designs such as router line cards or media gateway backplanes - a capability confirmed in the MPC8260AEC Rev. 2.0 hardware specification document.

How many TDM interfaces does KMPC8265ACVVMIBC support, and what standards are covered?

KMPC8265ACVVMIBC supports eight hardware TDM interfaces, organized as two groups of four. These support T1, E1, T3/E3, ISDN basic and primary rate, PCM highway, Freescale IDL, GCI, and user-defined serial formats. Each TDM port includes 2,048 bytes of SI RAM, bit/byte resolution, and independent Tx/Rx routing - enabling simultaneous termination of multiple E1 trunks in media gateways. This capability is explicitly documented in Section 1 (Features) of the MPC8260AEC spec.

What is the package type and thermal rating of KMPC8265ACVVMIBC?

KMPC8265ACVVMIBC uses a 480-ball TBGA package (35 mm × 35 mm, 1.27 mm pitch) with exposed thermal pad. It is rated for industrial junction temperature operation from –40°C to +105°C. Thermal resistance values are θJA = 83°C/W (4-layer board, 1 m/s airflow) and θJB = 4°C/W, confirming suitability for convection-cooled carrier equipment. These specifications are defined in Table 4 of the MPC8260AEC Rev. 2.0 document.

Can KMPC8265ACVVMIBC operate without external memory?

No, KMPC8265ACVVMIBC requires external memory for program execution and data storage. It features a 12-bank memory controller supporting SDRAM, SRAM, Flash, and EPROM, but contains no on-die executable ROM beyond boot ROM. The device boots from external Flash or EEPROM via configurable reset vector, and relies on external DRAM for Linux or VxWorks runtime execution. This architecture is detailed in Section 5 (Memory Controller) of the MPC8260AEC specification.