NXP Semiconductors KMPC866TVR133A

Overview

KMPC866TVR133A from Freescale Semiconductor is a 32-bit PowerQUICC™ communications processor integrating a PowerPC core, CPM coprocessor, and Fast Ethernet controller. It operates at 133 MHz CPU frequency with 4-Kbyte instruction and 4-Kbyte data caches, 357-pin PBGA package, 1.8 V core / 3.3 V I/O supply, and supports UTOPIA Level 2, MII, and enhanced SAR (ESAR) for ATM edge applications.

For engineers reviewing the KMPC866TVR133A datasheet, KMPC866TVR133A pinout, KMPC866TVR133A application, or KMPC866TVR133A equivalent, this page delivers verified electrical specs, cache configuration, bus timing modes, thermal resistance values, and confirmed alternative parts for telecom infrastructure, DSLAMs, and embedded networking systems requiring deterministic real-time communication processing.

Technical Context

The KMPC866TVR133A implements a single-issue 32-bit PowerPC core with MMU, 32-entry ITLB/DTLB, and physically addressed caches. Its CPM module includes a 32-bit RISC controller, 8-Kbyte dual-port RAM, and 10 SDMA channels - distinct from MPC866P's 16-channel configuration.

It supports simultaneous MII (10/100Base-T) and UTOPIA (half-duplex) operation via multiplexed bus, ESAR-mode OAM/PM functions, and AAL2/VBR ROM-resident firmware. The SIU provides clock synthesis, JTAG debug, watchdog, and IEEE 1149.1 TAP control - all operating under 1.8 V core and 3.3 V I/O rails with 5-V tolerant pins on PA/PB/PC/PD buses.

Key Specifications

Pinout & Package

Package: 357-pin plastic ball grid array (PBGA), 27 mm × 27 mm, 1.27 mm pitch, thermally enhanced with exposed ground pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with KMPC866TVR133A, MPC866PVR133B offers higher cache capacity and expanded CPM resources for advanced telecom firmware, while MPC859TVR133A sacrifices SCC count and TSA to reduce silicon area and system cost - making it suitable for entry-level DSLAM line cards where feature set is intentionally trimmed.

Availability

KMPC866TVR133A is available at Aetrix Electronics and suitable for DSLAM line cards, ATM edge routers, voice over ATM gateways, and industrial protocol converters requiring stable component supply across extended product lifecycles.

Supply support for KMPC866TVR133A 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.

KMPC866TVR133A belongs to the MPC866/859 PowerQUICC™ family, designed specifically for cost-optimized, real-time communications processing in ATM, DSL, and TDM-to-packet gateway applications - balancing performance, integration, and power efficiency.

FAQ

What is the maximum operating junction temperature for KMPC866TVR133A?

The KMPC866TVR133A has a maximum guaranteed junction temperature (Tj) of 100 °C under extended temperature conditions. This value is specified in Table 3 of the Freescale MPC866/MPC859 Hardware Specifications Rev. 2 document. Thermal design must ensure TJ remains below this limit during sustained 133 MHz operation, especially when using the 4-layer board thermal model with RθJB = 13 °C/W.

Does KMPC866TVR133A support full-duplex UTOPIA Level 2 operation?

Yes, KMPC866TVR133A supports full-duplex UTOPIA Level 2 operation in both master (ATM side) and slave (PHY side) configurations using a 'split' bus architecture. This capability is explicitly documented in the Features section of the MPC866/MPC859 Hardware Specifications Rev. 2, enabling simultaneous cell transmission and reception without external FIFO buffering.

What are the key differences between KMPC866TVR133A and MPC866PVR133B?

KMPC866TVR133A features 4-Kbyte instruction and 4-Kbyte data caches with 10 SDMA channels, while MPC866PVR133B uses 16-Kbyte instruction and 8-Kbyte data caches with 16 SDMA channels. KMPC866TVR133A retains full TSA and four SCCs but omits the larger cache and extra DMA resources found in KMPC866TVR133A's superset variant.

Is KMPC866TVR133A pin-compatible with other MPC866/859 family members?

KMPC866TVR133A shares the same 357-pin PBGA package and pinout with all MPC866/859 family variants, including MPC866PVR133B and MPC859TVR133A. Mechanical compatibility is confirmed in Section 15 (Mechanical Data and Ordering Information) of the Freescale hardware specification - though functional differences (e.g., SCC count, TSA presence) require firmware and schematic validation.

What power sequencing requirements apply to KMPC866TVR133A?

KMPC866TVR133A requires VDDL (core) to ramp no later than VDDH (I/O) during power-up, and VDDL must never exceed VDDH by more than 100 mV. These constraints are mandated in Section 8 (Power Supply and Power Sequencing) to prevent forward-biasing of internal ESD protection diodes. A discrete diode-based sequencing circuit (Figure 4) is recommended if the power supply cannot guarantee timing alignment.