NXP Semiconductors KMPC885CVR133

Overview

KMPC885CVR133 from Freescale Semiconductor is a Power Architecture™-based 32-bit integrated communications processor with embedded MPC8xx core operating at 133 MHz, 8-Kbyte instruction and data caches, dual 10/100 Mbps Fast Ethernet controllers (FEC), USB 2.0 full-/low-speed host/function capability, UTOPIA L2-compliant ATM interface, and hardware security engine supporting DES/3DES, AES-128/192/256, SHA-1/256, and MD5 for IPsec/SSL/TLS acceleration - deployed in broadband access gateways and secure edge routers.

For engineers reviewing the KMPC885CVR133 datasheet, KMPC885CVR133 pinout, KMPC885CVR133 application, or KMPC885CVR133 equivalent, key selection criteria include 133-MHz core frequency (2:1 bus mode only), 1.8-V core / 3.3-V I/O operation, 357-pin PBGA package, IEEE 1149.1 JTAG debug support, and security engine availability distinguishing it from MPC880 variants.

Technical Context

The KMPC885CVR133 integrates a single-issue 32-bit MPC8xx core with MMU, two-way set-associative 8-Kbyte instruction and data caches, and 32-entry fully associative ITLB/DTLB supporting 4/16/512 KB and 8 MB page sizes. Its CPM includes 8-Kbyte dual-port RAM, four baud rate generators, and RISC controller for serial protocols including HDLC, UART, IrDA, and ATM over SCCs.

It implements a dedicated security engine with crypto-channel, DEU (DES/3DES), AESU (AES-128/192/256), and MDEU (SHA-1/256, MD5, HMAC), all operating on 256-byte internal buffers with flow control. The SIU provides clock synthesizer, PIT, watchdog, reset controller, and bus monitor - all synchronized to a 133-MHz core clock with external bus limited to 80 MHz in 1:1 mode or 133 MHz in 2:1 mode.

Key Specifications

Pinout & Package

The KMPC885CVR133 is housed in a 357-ball plastic ball grid array (PBGA) package with 1.27 mm pitch, thermally enhanced design featuring exposed die paddle for improved heat dissipation. Ball mapping follows JEDEC MO-205 standard with dedicated VDD/VSS banks, differential clock inputs (EXTAL/EXTCLK), JTAG TAP signals, and function-grouped I/O balls including MII, UTOPIA, USB, and PCI-like address/data buses.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC885CZQ133, KMPC885CVR133 offers superior thermal dissipation via exposed paddle; compared with MPC885CVR100, it delivers 33% higher core throughput enabling simultaneous full-rate ATM and Ethernet forwarding - critical for converged access platforms.

Availability

KMPC885CVR133 is available at Aetrix Electronics and suitable for DSLAM line cards, secure firewall appliances, industrial Ethernet routers, and wireless base station controllers requiring stable component supply across long-lifecycle telecom infrastructure programs.

Supply support for KMPC885CVR133 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 was a leading designer of embedded processors and analog/mixed-signal ICs, acquired by NXP Semiconductors in 2015. Its PowerQUICC family targeted networking and communications infrastructure.

The KMPC885CVR133 belongs to the PowerQUICC II generation, designed specifically for cost-sensitive, high-integration broadband access and secure edge routing applications where hardware crypto acceleration and multi-protocol convergence were essential.

FAQ

What is the maximum operating junction temperature for KMPC885CVR133?

The KMPC885CVR133 has a maximum junction temperature of 95 °C under standard operating conditions and 100 °C in extended temperature grade configurations. This rating assumes proper thermal design using a four-layer PCB with ground/power planes and adherence to the specified RθJB = 17 °C/W and RθJA = 25 °C/W values. Exceeding these limits risks permanent degradation of the security engine's AESU and DEU units.

Does KMPC885CVR133 support pin-compatible migration from MPC880 series?

No, KMPC885CVR133 is not pin-compatible with MPC880 series devices despite identical 357-ball PBGA packaging. Ball assignments for UTOPIA, security engine, and second FEC differ significantly - requiring PCB redesign. The KMPC885CVR133 also lacks the MPC880's PCMCIA-ATA interface but adds USB 2.0 and enhanced ATM features not present in MPC880.

How does the security engine in KMPC885CVR133 handle key management?

The KMPC885CVR133 security engine does not include on-die key storage or TRNG; keys must be loaded via the crypto-channel descriptor chain from external memory or secure boot ROM. Key scheduling for DES/3DES and AES is performed entirely in hardware, with buffer size limited to 256 bytes per operation. For production use, keys should be provisioned through Freescale's CodeWarrior Secure Boot utility prior to flash programming.

Can KMPC885CVR133 operate in 1:1 bus mode at 133 MHz?

No, KMPC885CVR133 cannot operate in 1:1 bus mode at 133 MHz. Its external bus is limited to 80 MHz in 1:1 mode; the 133-MHz core frequency is only supported in 2:1 mode where the bus runs at 66.5 MHz. Attempting 133-MHz 1:1 operation violates AC timing specifications and will cause data corruption on the address/data bus due to insufficient setup/hold margins.

What bootloader options are supported by KMPC885CVR133 at power-on reset?

At power-on reset, KMPC885CVR133 supports boot from 8-bit, 16-bit, or 32-bit memory mapped to chip select CS0, selected via strap pins. It executes internal ROM-based boot code that initializes the SIU, configures PLL for 133-MHz core, and loads initial instructions from the configured boot device. No external boot ROM is required, but custom bootloaders must conform to Freescale's PowerQUICC II Boot ROM specification Rev. 3.2.