NXP Semiconductors MPC8323VRAFDC

Overview

MPC8323VRAFDC from NXP Semiconductors (formerly Freescale) is a PowerQUICC II Pro integrated communications processor featuring an e300c2 Power Architecture core, 32-bit DDR1/DDR2 memory controller, QUICC Engine with five universal communication controllers (UCCs), PCI 2.3 interface, and SEC 2.2 security engine. It delivers up to 333 MHz core frequency, supports 10/100 Mbps Ethernet via MII/RMII, and targets ADSL SOHO gateways, residential routers, and industrial control systems.

For engineers reviewing the MPC8323VRAFDC datasheet, MPC8323VRAFDC pinout, MPC8323VRAFDC application, or MPC8323VRAFDC equivalent, this page provides verified technical context, validated package mapping, confirmed UCC protocol support (including ATM SAR up to OC-3), real DDR2 timing constraints at 1.8 V, and documented PCI 66 MHz agent/host mode operation - all directly extracted from Freescale MPC8323EEC Rev. 4.

Technical Context

The MPC8323VRAFDC integrates a dual-integer-unit e300c2 core (no FPU) with 16 KB I-cache and 16 KB D-cache, coupled to a dedicated QUICC Engine block containing a 32-bit RISC controller, serial DMA, and five UCCs supporting concurrent HDLC, Ethernet, ATM, and UART protocols. Its DDR1/DDR2 controller operates at up to 266 MHz with 32-bit bus width and single chip-select support.

PCI functionality complies with Revision 2.3, supports 32-bit/66 MHz operation in both host and agent modes, and includes on-chip arbitration for three external masters. The SEC 2.2 security engine accelerates DES, 3DES, AES, SHA-1, and MD5 operations via dedicated crypto execution units - offloading cryptographic processing from the main CPU.

Key Specifications

Pinout & Package

Package: PBGA-620 (35 mm × 35 mm, 1.27 mm pitch). Pinout validated per Freescale MPC8323EEC Rev. 4 Section 21 "Package and Pin Listings".

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8323VRAFDC, MPC8321VRAFDC sacrifices ATM/UTOPIA capability and DDR2 support for lower cost, while MPC8323VRAGDC offers identical functionality with environmental compliance - making it the preferred choice for production programs requiring RoHS certification.

Availability

MPC8323VRAFDC is available at Aetrix Electronics and suitable for ADSL SOHO gateways, industrial Ethernet routers, and telecom access nodes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MPC8323VRAFDC 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 acquired Freescale in 2015 and maintains full support for the PowerQUICC II Pro family. NXP is a global leader in secure connectivity solutions for automotive, industrial, and networking markets.

The MPC8323VRAFDC belongs to the PowerQUICC II Pro processor line, designed specifically for cost-sensitive, highly integrated communications infrastructure where deterministic packet processing, hardware-accelerated security, and multi-protocol flexibility are essential.

FAQ

What is the maximum DDR2 data rate supported by the MPC8323VRAFDC?

The MPC8323VRAFDC DDR1/DDR2 memory controller supports up to 266 MHz data rate, enabling peak theoretical bandwidth of 853 MB/s on its 32-bit bus. This specification applies to both DDR1 (2.5 V) and DDR2 (1.8 V) operation, with timing parameters validated per Freescale MPC8323EEC Rev. 4 Section 6.2. The controller does not support DDR3 or LPDDR variants.

Does the MPC8323VRAFDC include a floating-point unit (FPU)?

No, the MPC8323VRAFDC uses the e300c2 core, which is explicitly defined in Freescale MPC8323EEC Rev. 4 Section 1 as lacking a floating-point unit. All arithmetic operations must be performed in software or via integer-based DSP libraries. This design choice prioritizes deterministic interrupt latency and power efficiency over floating-point computation.

Can the MPC8323VRAFDC operate in PCI agent mode with a 66 MHz clock?

Yes, the MPC8323VRAFDC PCI controller fully supports 32-bit/66 MHz operation in agent mode, as confirmed in Section 1.5 of MPC8323EEC Rev. 4. In this configuration, PCI_SYNC_IN serves as the timing reference, and the device functions as a peripheral on a PCI bus - requiring no modifications to the MPC8323VRAFDC's internal clock synthesis logic.

What protocols are accelerated by the SEC 2.2 security engine in the MPC8323VRAFDC?

The SEC 2.2 engine in the MPC8323VRAFDC accelerates DES, 3DES, AES (all key lengths), SHA-1, MD5, and HMAC-SHA1 operations using dedicated execution units (DEU, AESU, MDEU). These are explicitly listed in Section 1.3 of MPC8323EEC Rev. 4 and enable full line-rate IPSec processing for 100 Mbps Ethernet links without CPU intervention.

Is the MPC8323VRAFDC pin-compatible with the MPC8323VRAGDC?

Yes, the MPC8323VRAFDC and MPC8323VRAGDC share identical PBGA-620 package dimensions, pinout, and electrical characteristics. The only difference is the surface finish: MPC8323VRAFDC uses standard SnPb plating, while MPC8323VRAGDC uses lead-free (Pb-free) plating compliant with RoHS Directive 2011/65/EU - confirmed in Freescale ordering information tables.