NXP Semiconductors KMPC8323ECVRAFDC

Overview

KMPC8323ECVRAFDC from Freescale Semiconductor is a PowerQUICC II Pro integrated communications processor featuring an e300c2 Power Architecture core (16 KB I-cache, 16 KB D-cache, dual integer units, no FPU), QUICC Engine block with five UCCs, SEC 2.2 security engine, 32-bit DDR1/DDR2 memory controller (266 MHz), and 32-bit PCI 2.3 interface - deployed in residential gateways, ADSL SOHO routers, and industrial control systems.

For engineers reviewing the KMPC8323ECVRAFDC datasheet, KMPC8323ECVRAFDC pinout, KMPC8323ECVRAFDC application, or KMPC8323ECVRAFDC equivalent, key selection considerations include DDR1/DDR2 voltage support (1.8 V / 2.5 V), UTOPIA Level 2 capability (31 multi-PHY), ATM SAR up to OC-3 (155 Mbps), Ethernet MII/RMII triple-port support, and SEC 2.2 hardware acceleration for AES/SHA-1/DES/3DES/MD5.

Technical Context

The KMPC8323ECVRAFDC integrates a 32-bit e300c2 core running at up to 333 MHz with dual integer units and MMUs but no floating-point unit. Its QUICC Engine block contains a dedicated 32-bit RISC controller, serial DMA, and five programmable UCCs supporting concurrent protocols including 10/100 Mbps Ethernet, HDLC (64 channels), ATM SAR (OC-3), and BISYNC.

It implements a unified DDR1/DDR2 memory controller (32-bit, 266 MHz, 1 chip select), PCI 2.3 host/agent interface (32-bit, 66 MHz, 3.3 V only), and SEC 2.2 crypto engine with DEU, AESU, and MDEU execution units - all coordinated via a System Interface Unit with IPIC interrupt controller (43 sources) and four 16-bit timers.

Key Specifications

Pinout & Package

KMPC8323ECVRAFDC is housed in a 620-pin PBGA package (35 mm × 35 mm, 1.0 mm pitch) with thermal lid. Pin assignments follow Freescale's MPC8323E Package and Pin Listings (Rev. 4, Section 21), including dedicated DDR, PCI, local bus, MII/RMII, UCC serial, and QUICC Engine clock domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8321ECZQAA, KMPC8323ECVRAFDC adds UTOPIA Level 2, DDR2 support, and enhanced SEC 2.2 - enabling OC-3 ATM and higher-throughput secure tunneling. Against MPC8323ECVRAGDC, it trades RoHS compliance for broader solder-process tolerance in industrial rework environments.

Availability

KMPC8323ECVRAFDC is available at Aetrix Electronics and suitable for residential gateways, industrial protocol converters, and test equipment requiring stable component supply, long-lifecycle support, and industrial-grade thermal performance.

Supply support for KMPC8323ECVRAFDC 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 processors, analog, and connectivity solutions for automotive, industrial, and networking markets.

KMPC8323ECVRAFDC belongs to the PowerQUICC II Pro family - designed specifically for cost-sensitive, highly integrated communications infrastructure where protocol flexibility, security acceleration, and DDR memory efficiency are critical.

FAQ

What is the maximum DDR2 data rate supported by KMPC8323ECVRAFDC?

KMPC8323ECVRAFDC supports DDR2 SDRAM at up to 266 MHz data rate (133 MHz clock), delivering 1.06 GB/s peak bandwidth over its 32-bit interface. This is confirmed in Section 1.4 and Table 5 of the MPC8323EEC Rev. 4 specification, with GVDD = 1.8 V ± 90 mV and strict MVREF tracking requirements. The KMPC8323ECVRAFDC does not support DDR3 or LPDDR.

Does KMPC8323ECVRAFDC support PCIe or only PCI?

KMPC8323ECVRAFDC supports only PCI Specification Revision 2.3 - not PCIe. Its 32-bit, 66 MHz, 3.3 V PCI interface operates in host or agent mode with on-chip arbitration for three external masters. There is no native PCIe PHY, link layer, or configuration space in the KMPC8323ECVRAFDC architecture per Sections 1.5 and 12 of the hardware spec.

Can KMPC8323ECVRAFDC run Linux-based operating systems?

Yes, KMPC8323ECVRAFDC is fully supported by Linux kernel versions 2.6.x and later via the Freescale PowerPC BSP, including device drivers for DDR controller, QUICC Engine UCCs, PCI, USB, and SEC. Community and vendor-supported Yocto Project layers provide bootable rootfs images targeting KMPC8323ECVRAFDC's e300c2 core and memory map.

What is the function of the UTOPIA interface on KMPC8323ECVRAFDC?

The UTOPIA Level 2 interface (UPC1) on KMPC8323ECVRAFDC provides a standardized 8-bit parallel bus for connecting to ATM PHY devices, supporting up to 31 multi-PHY addresses. It enables OC-3 (155 Mbps) ATM SAR functionality, traffic shaping, and OAM handling per ITU-T I.610 - a feature exclusive to MPC8323E/MPC8323 variants per Section 1.1.2.

Is KMPC8323ECVRAFDC pin-compatible with MPC8321E series processors?

No, KMPC8323ECVRAFDC is not pin-compatible with MPC8321E series processors. While both use 620-pin PBGA packages, pin assignments differ significantly - especially for DDR, UTOPIA, and QUICC Engine clock domains. Section 21 of the MPC8323EEC Rev. 4 explicitly states distinct pin listings; MPC8321E lacks UTOPIA pins and has different DDR voltage domain routing.